MAINTENANCE MANUAL - Meritor

MFS 06 

MFS 07 

MFS 08 

MFS 14 

MAINTENANCE MANUAL 

Front Axle (Non-tractive) 

Edition october/11 

MM11135

Index 

1 - Important information .......................................................................................... 03 

2 - Exploded view .................................................................................................... 04 

3 - Introduction and description ............................................................................... 06 

4 - Failure correction ................................................................................................ 10 

5 - Inspection ........................................................................................................... 12 

6 - Lubrificacion e Maintenance ............................................................................... 15 

7 - Adjustments ........................................................................................................ 21 

8 - Removal ............................................................................................................. 33 

9 - Preparation of parts for assembly ....................................................................... 40 

10 - Installation ......................................................................................................... 45 

11 - Torque specifications .......................................................................................... 60 

12 - Special tools ....................................................................................................... 62 

MAINTENANCE MANUAL

Updating of Changes in the Axle 

To maintain the maintenance manual up-todate, 

for each change that occurs in the axle, 

a Technical Instruction will be issued with the 

data and the implications stemming from these 

changes. At the foot of each of each page of this 

manual, there is an area designated for noting 

the number of each Technical Instruction that involves 

possible changes occurring on that page, 

as shown in the example below: 

Safety 

The use of safety equipment is of extreme importance 

at the time of maintenance of the axle. 

• Upon using a hammer or carrying out any 

operation that involves impact, use safety 

goggles. 

• Upon handling hot parts, use appropriate 

gloves. 

ASBESTOS AND NON-ASBESTOS FIBERS 

Some brake linings contain asbestos fibers, 

a hazardous cancer and pulmonary disease 

causing agent. Some brake linings contain fibers 

without asbestos, but for which the effects 

of prolonged exposure are unknown. Great 

care must be taken upon handling both types 

of material. 


Important information 

3

Exloded view 

UPPER AND 

LOWER 

NON-DRIVE 

FRONT AXLE 

4 MAINTENANCE MANUAL 

DOUBLE NUT 

SINGLE NUT SINGLE NUT

ITEM DESCRIPTION ITEM DESCRIPTION 

1 Cotter pin 

2 Castle nuts 

3 Steering arm 

4 Key 

5 Pivot 

6 Bolt 

7 Lubrification pin 

8 Shaft end cover - with hole for lubrication 

9 Shaft end cover - sealed 

10 Gasket 

11 Needle bearing 

12 Tip shaft bronze bushing 

13 Tip shaft nylon bushing 

14 Stub axle 

15 Castle nuts 

16 Cotter pin 

17 Seal - Tip shaft bushing 

18 Nut limiter bolt 

19 Steering limiter bolt 

20 Porca Castelo 

21 Cotter pin 

22 Shim 

23 Beam 

24 Flat key 

25 Cotter threaded 

26 Key nut 

27 Axial bearing and plan seal 

28 Axial bearing and seal 

29 Whole axial bearing and seal 

30 King pin 

31 Key 

32 Connecting arm 

33 Cotter pin 

34 Castle nuts 

35 Pivot of the tie bar 

36 Screw clamp 

37 Lock nut 

38 Connecting bar 

39 Sealer cub 

40 Internal bearing cone 

41 Internal bearing cup 


42 Wheel bolt 

43 Hub 

44 Bearing wheel cup - internal 

45 Bearing wheel cone - internal 

46 Adjustment nut 

47 Lock ring pierced 

48 Lock washer 

49 Counter nut 

50 Washer “D” 

51 Adjustment nut 

52 Cotter pin 

53 Gasket 

54 Cover hub 

55 Bolt and nut 

56 Shaft end cover 

57 Washer key 

Exloded view 

5

Introduction and description 

Description 

The front non-drive axles ArvinMeritor have the 

following components: (Figure 1). 

• Tie bar, stub axle and king pin. 

The right side tie bar is the mirror image of 

the left side tie bar and converts the force of 

the tie bar into movement to turn the right side 

stub axle, wheel and tire around the king pin. 

The stub axle and king pin assembly is similar 

to the left side, except for the absence of the 

steering arm. 

• Stub axle 

Stub axles are evaluated in accordance with 

the front axle capacity. All models use straight 

stub axle pins. Three types of bushings are 

used: nylon, bronze and Easy Steer®. 

STUB AXLE 

TIE BAR 

PIVOT 

CONNECTING 

ARM 

TIE BAR 

• Steering Arm 

The steering arm (normally a cast component) 

converts the force of the steering arm in a turning 

movement through the left side axle stub 

king pin. 

STEERING 

ARM 

Figure 1a 

Figure 1 

6 MAINTENANCE MANUAL

Identification of the Axles 

All the information necessary for any ArvinMeritor 

front axle is indicated on the axle identification 

plate. Figure 2. 

Before beginning service operations, identify 

the unit to be repaired, consulting the identification 

plate fastened on the beam. This information 

will allow correct identification of the 

spare parts desired, thus allowing execution of 

a more rapid and precise service operation. 

Figure 2 

Figure 3 

MODEL 

CUST. NO. 

PART. NO. 

SER. NO. 

FRONT 

AXLE 

Identification Plate 

VARIACIÓN PRINCIPAL 

0 Conceptual design FMVSS-121 

1 Stub axle of straight axle with seal 

and new steering arm assembly 

2 Const.. stub pin with seal 

3 Larger beam and stub axle 

4 Easy Steer® Bushing 

5 Tubular beam 

6 Low weight beam 

7 Model with center point 

8 Easy Steer® Plus Bushing 


RATIO 

DATE 

BASIC CAPACITY 

A 5.000 lbs (2268 Kg) 

B 6.000 lbs (2722 Kg) 

C 7.000-8.000 lbs (3175-3629 Kg) 

D 9.000 lbs (4082 Kg) 

E 10000 lbs (4536 Kg) 

F 12.000-13.200 lbs (5443-5987 Kg) 

G 14.600 lbs (6622 Kg) 

L 16.000-20.000 lbs (7258-9072 Kg) 

LX 30.000 lbs (13.608 Kg) 

U 28.000-30.000 lbs (12.701-13.608 

Kg) 

FF - 931 - NX-122 


Model (Model) 

Cust.No. (Customer n°) 

Part.No. (Part n°) 

Ratio (Reductions of the differential) 

Série No. (Serie n°) 

Date (Date of manufacture) 

Designation of the model. See Figures 3 and 

3A. For information regarding all models, see 

Figure 4. 

BASIC SERIES 

BRAKE 

SPECIFICATION 

NUMBER 

NUMERICAL 

SEQUENCE 

ALTERACIÓN DE PROYECTO 

0 Tempered king pin 

1 Straight king pin 

2 Special connecting arm 

3 Distance of 127 mm (5”) from the center of 

the stub axle to the spring seat 

4 Distance of 127 mm (5”) from the center of 

the stub axle to the spring seat and special 

connecting ARMS. 

5 Special wheel end 

6 Double lowering of the beam 

7


Figure 3A 

Meritor 

F = Front 

S = Non-drive 

steering axle 

NEW MODELS 

GAWR pounds 

or tone 

INDICATES VARIATION ON THE 

BEAM KING PIN OR BUSHING: 

1 - Straight king pin –Easy Steer® 

2 - bushing – Tapered king pin – needle bearing 

3 - Beam of alloy material (India) 

4 - Straight king pin – bronze bushing 

MFS - XX - 000X - NX XXX 

KPI 

0 - No Standard 

1 - 68” (1727,2 mm) 

2 - 69” (1752,6 mm) 

3 - 71” (1803,4 mm) 

4 - 71,5” (1816,1 mm) 

5 - 72” (1828,8 mm) 

6 - 65,25” (1657,4 mm) 

7 - 60” (1524,0 mm) 

8 - 67,5” (1714,5 mm) 

9 - 68,5” (1739,9 mm) 

HEIGHT FROM THE CENTER 

OF THE BOSS FOR THE 

KING PIN TO THE SURFACE 

OF THE SPRING SEAT 

0 - No Standard 

1 - 3,30” (83,8 mm) 

2 - 3,50” (88,9 mm) 

3 - 3,74” (3,74 mm) 

4 - 5,00” (127,0 mm) 

5 - 2,50” (63,5 mm) 

MANUFACTURING LOCATION 

N - North America 

S - South America 

E - Europe 

A - Australia / Asia 

MAIN DESIGN VARIATION 

A - Conventional stub axle 

B - Whole connecting arm 

C - Whole connecting arm and backing 

plate 

D - Whole connecting arm, brake spider 

and unitized hub 

GAWR = Gross Axle Weight Rating 

KPI = king Pin Inclination 

“ = Inches 

NUMERICAL 

SEQUENCE 

BRAKE 


For axles manufactured in Brazil identified by the initial 8, adopt the values for the axles identified by the initial 9. 

E.g., FF-844 adopt values indicated for FF-944. 



Figure 4 - INFORMATION ON MODELS OF THE NON-DRIVE FRONT AXLES 

NUM./MOD. CAPACITY MAIN VARIATION DESIGN ALTERATION 

FC-901 3.175 Kg (7.000 lbs) Conceptual design FMVSS-121 Straight stub axle pin 

FC-903 3.175 Kg (7.000 lbs) Conceptual design FMVSS-121 Distance 127 mm (5”) from stub axle center 

to spring seat 

FC-921 3.175 Kg (7.000 lbs) Conceptual design FMVSS Straight stub axle pin 

FC-941 3.629 Kg (8.000 lbs) Easy Steer® Design Straight stub axle pin 

FD-833 2.070 Kg (4.560 lbs) Larger beam and stub axle Straight stub axle pin 

FC-901 4.082 Kg (9.000 lbs) Conceptual design FMVSS-121 Straight stub axle pin 

FC-931 4.082 Kg (9.000 lbs) Larger beam and stub axle Straight stub axle pin 

MFS-09 4.082 Kg (9.000 lbs) Larger beam and stub axle Distance 127 mm (5”) from stub axle center 


FD-961 4.536 Kg (10.000 lbs) Low weight beam Straight stub axle pin 

FE-970 4.536 Kg (10.000 lbs) Centered point design Tempered stub pin 

FF-921 5.443 Kg (12.000 lbs) Sealed stub axle pin Straight stub axle pin – off road 

FF-931 5.443 Kg (12.000 lbs) Straight stub axle pin 

FF-932 5.443 Kg (12.000 lbs) Special connecting arm 

FF-933 5.443 Kg (12.000 lbs) Distance 127 mm (5”) from stub axle center 


FF-934 5.443 Kg (12.000 lbs) Distance 127 mm (5”) from stub axle center 

to spring seat and special connecting arm 

FF-941 5.443 Kg (12.000 lbs) Easy Steer® Design Straight stub axle pin 

FF-942 5.987 Kg (13.200 lbs) Easy Steer® Design Distance 127 mm (5”) from stub axle center 


FF-943 5.443 Kg (12.000 lbs) Easy Steer® Design Special connecting arm 

MFS-13 

5.443 Kg (12.000 lbs) Easy Steer® Design Distance 127 mm (5”) from stub axle center 

FF 944 

to spring seat and special connecting arm 

FF-961 5.443 Kg (12.000 lbs) Straight stub axle pin 

FF-971 5.443 Kg (12.000 lbs) Centered point design Straight stub axle pin 

FG-931 6.622 Kg (14.600 lbs) Straight stub axle pin 

FG-933 6.622 Kg (14.600 lbs) Distance 127 mm (5”) from stub axle center 


FG-941 6.622 Kg (14.600 lbs) Easy Steer® Design Straight stub axle pin 

FG-943 6.622 Kg (14.600 lbs) Easy Steer® Design Distance 127 mm (5”) from stub axle center 


FL-931 9.072 Kg (20.000 lbs) Straight stub axle pin 

FL-933 9.072 Kg (20.000 lbs) Distance 127 mm (5”) from stub axle center 


FL-941 9.072 Kg (20.000 lbs) Easy Steer® Design Straight stub axle pin 

FL-943 9.072 Kg (20.000 lbs) Easy Steer® Design Distance 127 mm (5”) from stub axle center 


FL-951 9.072 Kg (20.000 lbs) Tubular axle beam Straight stub axle pin 

FU-910 12.600 Kg Sealed stub axle pin and connecting 

arm assembly 

Tapered stub axle pin 

FU-935 13.608 Kg Special wheel ends 

MFS-06 

2.631 Kg (5.800 lbs) Easy Steer® Design Straight stub axle pin 

5301 

Easy Steer® bushing 

MFS-07 

3.171 Kg (7.000 lbs) Easy Steer® Design Straight stub axle pin 

MFS-08RA 

Easy Steer® bushing 

9

Failure correction 


Check the tables below to correct possible failures in the axle 

CONDITION CAUSe CORRECTION 

Tires wear out rapidly or have irregular 

wear 

1. Tires with incorrect calibration. 

2. Unbalanced tires. 

3. Incorrect alignment of tandem 

axles. 

4. Incorrect divergence. 

5. Incorrect steering arm geometry. 

6. Excessive play of the wheel 

hub 

Vehicle with steering difficulty 1. Low pressure in the hydraulic 

steering system. 

2. Steering joints need lubrication. 

3. King pin stuck. 

4. Incorrect steering arm geometry. 

5. Caster out of adjustment. 

6. Connecting arm ends difficult 

to move. 

7. Worn back-up ring. 

Tie bar terminals worn 1. Tie bar pivots need lubrication. 

2. Severe operating conditions. 

3. Damaged cowl in the pivot of 

the tie bar 

Tie bar, pivot, steering arm or 

connecting arm crooked or broken 

1. A great deal of pressure in the 

steering power system. 

2. Interruption pressure of the 

steering power system out of 

adjustment. 

3. Vehicle working under severe 

conditions. 

4. Steering box poorly adjusted 

or not operating well. 

5. Steering limits adjusted incorrectly. 

1. Calibrate the tires with the 

specified pressure. 

2. Balance or change tires. 

3. Align the tandem axles. 

4. Adjust the divergence. 

5. Repair the steering arm as 

necessary. 

6. Readjust the play of the end 

bearings. 

1. Repair the steering system. 

2. Lubricate the steering joints. 

3. Replace the king pin. 

4. Correct the steering system as 

necessary. 

5. Adjust the caster. 

6. Replace the ends. 

7. Replace the ring. 

1. Lubricate the pivots of the tie 

bar. Check that the lubrication 

tables are being followed. 

2. Increase the frequency of lubrication 

inspection. 

3. Replace the cowl. 

1. Adjust the pressure of the 

steering power system. 

2. Check that the vehicle is operating 

correctly. 

3. Install the Add-on type system 

correctly. 

4. Check. 

5. Check adjustments of steering 

limits 


Failure Correction 

Check the tables below to correct possible failure in the axle. 


CONDITION CAUSE CORRECTION 

Steering pivot worn or broken 1. Torque of the tie rod greater 

than specified. 

2. Lack of lubrication or incorrect 

lubrication. 

3. Directional steering limit out of 

adjustment. 

King pins and bushings worn 1. Gaskets or seals lacking or 

worn. 

2. Incorrect lubrication. 

3. The axle is not lubricated with 

the specified frequency. 

4. Incorrect 

dures. 

lubrication proce- 

5. Lubrication frequency incompatible 

with the operating conditions. 

Front axle vibrating or “shaking” 

during operation 


1. Tighten the fasteners of the tie 

rod fasteners with the specified 

torques. 

2. Lubricate the steering joints. 

3. Adjust the limits with the specified 

dimensions. 

1. Replace the gaskets and 

seals. 

2. Use the specified lubricant 

3. Lubricate the axle with the 

specified frequency. 

4. Use the correct procedures. 

5. Change the frequency to be 

compatible with the operating 

conditions. 

1. Caster out of adjustment. 1. Adjust the caster. 

2. Unbalanced wheels and/or 2. Balance or replace the wheels 

tires. 

and/or tires. 

3. Worn shock absorbers. 3. Replace the shock absorbers. 

11

Inspection 

Inspection 

Perform the following procedures during an inspection: 

• Fasteners – Check that all the fastening 

elements are tightened with the specified 

torques. Use a torquemeter to check the 

torques. Reading must be made as soon as 

the bolt or nut begins to move. Correct the 

torque if necessary. Replace any damaged 

fastener. 

CAUTION 

REPAIR OR RECOVERy OF THE FRONT 

AXLE COMPONENTS IS NOT PERMIT- 

TED. ARVINMERITOR RECOMMENDS RE- 

PLACEMENT OF COMPONENTS WHICH 

ARE DAMAgED OR OUTSIDE OF SPECI- 

FICATION. MOST OF THE COMPONENTS 

UNDERgO THERMAL TREATMENT. THE 

COMPONENTS MAy NOT bE STRAIgHT- 

ENED, WELDED, HEATED OR REPAIRED 

IN ANy WAy WITHOUT THE RESISTANCE 

OR DURAbILITy OF THE COMPONENT bE- 

INg REDUCED AND INVALIDATINg THE 

gUARANTEE AND MAy EVEN CAUSE AC- 

CIDENTS WITH THE VEHICLE RESULTINg 

IN DAMAgES OR PERSONAL INjURy. 

• Damage and wear – Inspect the parts of the 

axle in regard to damage and wear. Look for 

bends or cracks. Replace all damaged or 

worn parts. 

• Puntos de pivote – Asegúrese que no hayan 

puntos de pivote sueltos. Cerciórese que 

los puntos de pivote estén lubricados. 

• Operación – Asegúrese que todas las piezas 

muévanse libremente por todo el radio 

de giro. 

• Desgaste de neumático - Inspeccione los 

neumáticos cuanto a evidencias de daños o 

desalineación de la suspensión. 

Check the vertical play of the stub axle 

1. Place blocks in the front and back of the rear 

wheel to keep the vehicle from moving. 

WARNINg 

Do not work under the vehicle supported only 

by a jack. The jack might slip and cause injury. 

Use adequate supports. 

2. Use a jack to raise the vehicle until the front 

wheels are suspended. Support the front 

axle on safe stands. 

3. Support a magnetic base with a dial indicator 

on the beam and support the thickness 

gauge of the dial indicator on the top of the 

stub axle. Figure 5. 

4. Place a crowbar between the boss of the 

steering arm and the beam. Force the stub 

axle upward. Figure 6. 

5. Clear the dial indicator. 

6. Force the stub axle upward with the crowbar 

and take a reading and note the result. 

Figure 5 


The result of the reading must be between 0.02 - 

0.64 mm (0.001- 0.025”) for new or reconstructed 

axles and 0.025 - 1.650 mm (0.001-0.065”) 

for axles in use. Figure 6. 

If the reading is 0 (zero), remove the stub axle 

and remove shims from the shim pack. See the 

Removal and installation sections of this manual. 

If the reading is greater than the maximum specified, 

remove the stub axle and add shims to the 

package. See the Removal and Installation sections 

of this manual. 

Check wear of the stub axle bushings 

1. Place blocks in the front and back of the rear 

wheel to keep the vehicle from moving. 

WARNINg 

Do not work under the vehicle supported 

only by a jack. The jack might slip and cause 

injury. 

2.Use a jack to raise the vehicle until the front 

wheels are suspended. Support the vehicle 

on safe stands. 

3. Check the wear of the upper bushing of the 

stub axle. Install a magnetic base with a dial 

indicator on the beam and support the thickness 

gauge on the side of the boss of the 

steering arm on the stub axle. Figure 7. 



CROWBAR 

Figure 6 

Inspection 

NOTE: 

If a bushing is damaged, it is necessary to 

exchange the two bushings of the stub axle. 

5. Laterally move the top of the side of the tire 

several times. If the dial indicator indicates 

play of 0.25mm (0.010”), the bushing is worn 

or damaged. Replace the two bushings. See 

the Removal and Installation sections of this 

manual. Figure 7A. 

6. Check the lower bushing of the stub axle. Install 

a magnetic base with a dial indicator on 

the beam and support the thickness gauge of 

the dial indicator on the boss of the connecting 

arm on the lower part of the stub axle. 

Figure 8. 

Figure 7A 

13

Inspection 


8. Laterally move the lower part of the side of 

the tire several times. If the dial indicator indicates 

play of 0.25 mm (0.010”), or more, the 

lower bushing is worn or damaged. Replace 

the two bushings. See the Removal and Installation 

sections of this manual. Figure 8A. 

Figure 8A 

Check tie bar ends 

Hold and try to move the tie bar in any direction. 

If any movement or play is felt between 

the ends of the tie bar and the connecting arms, 

remove and replace the pivots of the tie bar. 

See the Removal and installation sections of 

this manual. Figure 9. 

CONNECT- 

ING ARM 

PIVOT OF 

THE BAR 

TIE BAR 

Figure 9 



Lubrification and maintenance 

Classification Table of vehicles according to the application group, date of manufacture 

and operating conditions. 

Application group table. 

group 

(See page 20) 

1 

2 

3 

4 

Aplication year Production Operation Condition 

Only on paved roads or highways, 

transportation lines 

Firefighters, Urban Delivery, 

buses, heavy Highways, School 

Bus, Motor Home 

Timber, Oil, Construction, Heavy 

transport, road tractor, Residential 

Trash. 

Mining, Off-road Tractor, Gravel 

and earth 

5 Mining, Timber, Construction 

After July 1996 

Before July 1996, use 

the group 3. 

After July 1996 

Before July 1996, use 

the group 3. 

Operations of high mileage 

(over 80.500Km 

/ year [50,000 miles]) 

95% on paved roads or 

highways. 

Low mileage Operations 

(less than 80,500 km / 

year [50,000 miles]). 

All Low mileage Operations 

(less than 40,200 

km / year [25,000 

miles]) heavy Load and 

substantial off-road 

operation. 

Heavy freight service 

Highly heavy work and 

80 to 100% off-road 

operations 

15


Lubricant Specifications 

Figure 10 Table w / Highway and Urban Delivery (Applicable in FF and FD including FD-931, FD-933 and FD- 

961) 

Part greasing interval grease 2 Meritor 

Specification 

• King pins 

• Kin pin bush 

• Pivots direction arms 

• Pivots connection arms 

• Direction bar1 Once a year or 

whiever comes first 

Multi purpose 

grease 2 

0-617-A 1 

0-617-B 2 

1 Applies to pivots on Easy Steer shafts and Conventional. Inspect pivots every 160,000 km (100,000 miles) for wear and damage. 

Perform maintenance as necessary. 

2 Meritor recognizes that the industry continually seeks to improve the selection and use of synthetic grease in vehicle maintenance. 

However, as we know, some sealants expand into contact with synthetic grease. See Meritor references about the application of 

synthetic grease before using it in vehicle maintenance. 

Figure 11 Table of Specification and greasing intervals for non-tractive Front Axle 

Part greasing interval grease 

• King pins 

• Kin pin bush 

• Pivots direction arms 

• Pivots connection arms 

• Direction bar1 Cube Unit Sealed for Trucks 

Once a year or 

whiever comes first 

Cube doesn’t require 

lubrication 

Multi purpose 

grease 


Specification 

0-617-A 

ou 

0-6187B 

1 Applies to pivots on Easy Steer shafts and Conventional. Inspect pivots every 160,000 km (100,000 miles) for wear and damage. 

Perform maintenance as necessary. 

Figure 12 Specification Table and Wheel Hub Oil Change Intervals 

Oper. on Road/ 

Intervals 

Check 

oil level 

1.600 km 

(1.000 

miles) 

Cambiar 

oil 

O que 

ocorrer 

primeiro: 

Troca de 

vedadores.Realinhamento 

de 

Freios. 

160.000 

km 

(100.000 

miles) 

Uma vez 

ao ano 

Intervals for off-road 

operation 

Check 

oil level 

1.600 km 

(1.000 

miles) 

Cambiar 

oil 

O que ocorrer 

primeiro: 

Troca de vedadores.Realinhamento 

de 

Freios. 

160.000 km 

(100.000 

miles) 

Uma vez ao 

ano 

NLgI 

graduation 

NLgI 

graduation 

1 Acceptable Designations. Motor Oils Multi Weights are acceptable if SAE values end in 40 or 50. 

2 Acceptable Designations. Motor Oils Multi Weights are acceptable if SAE values end in 0. 

Note: The conditions stated in the User’s Vehicle Manufacturer override the conditions contained in this manual 

Grase classification 

6% Lítio 

12-Hidroxyl Stearato 

8% Lítio 

12-Hidroxyl Stearato 

grase classification 

Temperatura 

externa 


1 

ou 

2 

Sealed unit None No 


Specif. 

0-76A 

Oil Gear 

0-76D 

Oil Gear 

0-76E 

Oil Gear 

0-76J 

Oil Gear 

Óleo Motor 

Carga Pesada 

Óleo Motor 

Carga Pesada 

Militar 

Specif. 

MIL-L-2105-D 

MIL-L-2105-D 

MIL-L-2105-D 

MIL-L-2105-D 

MIL-L-2104-B 

-C, -D ou E 

MIL-L-2104-B 

-C, -D ou E 

Oil 

description 

GL-5 SAE 

85W/140 

GL-5SAE 

80W/90 

GL-5SAE 

85W/140 

GL-5SAE 

75W 

6% Lithium 

12-Hidroxystearato 

or lithium 

complex 

API-CD, 

-CE-SF ou 

-SGSAE 40 

ou 50 

API-CD, 

-CE-SF ou 

-SGSAE 30 

See the grease 

manufacturer’s 

specifications 

regarding working 

temperature limit. 

External temperature 

C° F° 

Min Max. Min. Max. 

12 No 10 No 

-26 No -15 No 

-40 No -40 No 

-40 2 -40 36 

12 No 10 No 

-26 No No

general 

Lubricate the king pins, the pivots at the end of 

the connecting arms, the pivots on the steering 

arms and the greased bearings with the approved 

lubricant. See Figures 10, 11 and 12, 

Lubrication tables. 

Lubricate the wheel ends lubricated with oil with 

the oil specified in Figure 12. When to lubricate 

and perform maintenance on the assemblies. 

See the Table in Figure 18 on the end of this 

section. 

King pins – conventional front axles. 

NOTE: 

These procedures apply to the conventional 

front axles 833, 901, 903, 910, 935, 952 and 

970. See the identification plate on the axle 

beam. 

On conventional axles, the greasers are located 

at the side of the stub axle. 

WARNINg: 

Do not work under the vehicle supported 

only by the jack. The jack might slip and 

cause serious injuries. 

1. Raise the vehicle until the tires leave the 

ground. The tires must be suspended when 

the king pins are lubricated. Place the vehicle 

on stands. Place shims in front and back of the 

rear wheels to keep the vehicle from moving. 

2. Lubricate the king pins through the upper and 

lower greasers (grease zerks) at the side of 

the stub axle. Figure 13. 

3. Apply lubricant until the new lubricant passes 

between the upper shim pack and the seal. 

4. Lower the vehicle until the wheels touch the 

ground. 



LUBRICATING 

PIN 

The lubricant must 

flow from here 

Figure 13 

5. Apply lubricant in the lower lubrication pin until 

the new lubricant flows and fills the ring. 

King pins – sealed front axles and Easy 

Steer® 

NOTE: 

his procedure applies to the front axles series: 

833, 911, 921, 931, 932, 933, 934, 941, 

942, 943, 951, 961, 963, 971 and 975. See the 

identification plate on the beam. 

On the sealed front axles and Easy Steer®, the 

greasers are located on the upper and lower 

covers of the king pins on the stub axle. 

1. Check that the tires are touching the ground. 

DO NOT RAISE THE VEHICLE. 

2. Lubricate the kings pins through the greasers 

on the top and on the lower part of the stub 

axles. Figure 14. 

3. Apply lubricant until the new lubricant passes 

between the upper shim pack and the seal. 

NOTE: 

On Axle 5301 (MFS-06) the lubricant passes 

through the seal and on the surfaces of the 

junction of the beam with the stub axle. 

17


LUBRICANT 

PIN 



Figure 14 

Pivots of the steering arms, pivots of 

the tie bars, and tie rods. 

1. Check that the tires are touching the ground. 

2.Apply the lubricant until the new lubricant flows 

from the cowl. 

Wheel bearings lubricated with grease 

Ver la Figure 16. 

1. Remove the tire and wheel assembly. Remove 

and disassemble the hub. See Removal 

of the Wheel End. 

2. Remove the old lubricant from all the parts. 

Discard the seals. Inspect the wheel bearings 

in regard to damage or wear. Replace them if 

there is damage or wear. See Preparation of 

Parts for Assembly. 

3. Force the entry of lubricant through the cavities 

between the rollers and the cage through 

the larger side of the cone. Place lubricant 

on the hub in the space between the bearing 

covers up to the level of their least diameter. 

Figure 16. 

LUBRICANT 

PIN 

LUBRICANT 



Figure 15 

Figure 16 

4. Install the inner and outer cones on the respective 

hub covers. The caps must be precisely 

seated on the hub seat. 

5. Install the new seals on the hubs. 

6. Install the wheel assembly and tires. Install the 

outside cone bearing of the wheel on the hub. 

Install the adjusting nut. 

7. Adjust the wheel bearings. See the Section 

Adjustment of wheel bearings. 


Wheel bearings lubricated with oil 

Check the level on the cover. If the oil level is 

not within specification graded on the cover, remove 

the fill plug and put the oil up to the level 

indicated. Figura 17. 

LUBRICANT 


Figure 17 


Tightening the nuts of the king pin keys 

NOTE: 

This procedure applies to all the models of 

the front axle, except for 901, 903 and 970. 

Check the identification plate on the beam. 

Tighten the nuts that fasten the keys on the side 

of the stub axle with a torque of 30-55 ft-lbf (41 

- 61 N.m) at the frequency indicated below. Figure 

18. 

• After the first 10,000 Km (6,000 Miles) of vehicle 

operation. 

• At every 58,000 Km (36,000 Miles) of operation. 

Key nut 

Figure 18 

19


Lubrification and Maintenance 

Figure 19 Lubrication, inspection and maintenance table 

Service Intervals 

Component 

(See page 15) 

48 

hours 

8.000 

km/ 

100 

hours 

Primeros 

10.000 km 

operación 

16.100 

km 

32.200 

km 

58.000 

km 

64.000 

km 

80.500 

km 

160.000 

km 

5.000 6.000 10.000 20.000 36.000 40.000 50.000 100.000 

Tie bar end 

miles miles miles miles miles miles miles miles 

Group 1 Application I L* 

Group 2 Application I L* 

Group 3 Application I, L* 

Group 4 Application I, L* 

Group 5 Application 

Inspect the tie bar assembly 

I, L* 

Group 1 Application I 

Group 2 Application I L 



Group 5 Application I I L 

Inspect tie bar I L 

Steering arm pivot I L 

Easy Steer® axle pivot I L 

Sealed pivot I L 

Steering arm I L 

King pins, bushings I L 

Sttering arm bolt I L 

Axle bearings 

Inspect vertical play in 

I L 


Group 2 Application I L 




Desgaste bujes superiores 

y inferiores de los 

pernos maestro 

I 






Key nuts 

I 

New vehicle T 

Vehicle in use T 

Inspection sealed hub unit I 


320.000 

km 

200.000 

miles 

I = Inspect 

L = Lubricate 

T = Tighten with the specified torque 

*If your vehicle is washed with a pressure washer, the lubrication intervals must be more frequent. For the models MF 06 (5301), FMS 07, FMS 07 RA, 

lubrication must be performed every 20.000 km.

Inspection before alignment 

Check the items below before performing alignment 

of the front wheels. 

Inspection 

See the Inspection section. Page 12. 

Wheels and Tires 

• Check that the tires have correct calibration. 

• Check that the front tires are of the same size 

and type. 

• Check that the nuts are tightened with the 

specified torque. 

• Check that the wheels are balanced. 

Front suspension 

• Check that the fastening elements are tightened 

with the specified torque. 

• Check if the springs are damaged. 

• Check if the stops are worn or damaged. 


Adjustments 

Rear axle and rear suspension 

Wear of the front tire may be caused by the 

rear axle. If the outside treat of a front tire is 

worn and the inside tread of the other front tire 

is worn, check the following: 

• Check that all the fasteners are tightened with 

the specified torque. 

• Check that the springs are not worn or damaged. 

• Check that the bushings of the spring assembly 

are not damaged or worn. 

• Check that the torques of the rods (if used) are 

correctly adjusted. 

• Check that the chassis is not twisted. 

• Check that the rear axle (especially a tandem 

axle) is correctly aligned. See the procedures 

of the vehicle or suspension manufacturer. 

• References to any recommendations and 

specifications of the vehicle or suspension 

manufacturer. 

21

Adjustments 

Front wheel alignment 

Verifique el alineamiento de las ruedas delanteras 

cuando ocurrir las siguientes situaciones: 

• Every 320,0000 Km (200,000 Miles) or 24 

months (normal maintenance). 

• When the vehicle does not steer correctly. 

• To correct conditions of tire wear. There are 

two types of alignment of the front wheels. 

One simplified alignment and another more 

complete alignment. 

Simplified alignment of the front wheels 

Perform simplified alignment of the front wheels 

for all normal maintenance conditions. 

Perform simplified alignment of the front wheels 

in the following sequence: 

1. Inspect all the systems that may affect alignment. 

See Inspection Before Alignment, in 

this section. 

2. Check and adjust wheel bearings. 

3. Check and adjust divergence. 

Complete alignment of the front wheels 

Perform complete alignment of the front wheels 

to correct steering and tire wear. 

Perform complete alignment of the front wheels 

in the following sequence: 

1. Inspect all the systems that may affect alignment. 

See Inspection Before Alignment, in this 

section. 

2. Check and adjust the wheel bearings. 

3. Check and adjust the maximum turning angle. 

4. If the vehicle has a hydraulic steering system, 

check and adjust the pressure release in the 

hydraulic steering system. See the procedure 

on page 26. 

5. Check and adjust the turning angle (divergence 

in the turns and Ackerman angle). 

6. Check the inclination of the king pin (or steering 

axle). 

7. Check the Camber angle. 

8. Check and adjust the Caster angle. 

9. Check and adjust the divergence. 


Checking and adjustments of the wheel 

bearings 

WARNINg: 

Do not work under the vehicle supported only 

by a jack. The jack may slip and cause injury. 

1.Use a jack to raise the vehicle under the front 

wheels are suspended. Support the vehicle 

on secure stands. 

2. Remove the bolts and remove the gasket 

and the hub cover. 

3. Check that the brake drum and the hub fasteners 

are tightened with the specifications 

from the manufacturer. 

4. Fasten a magnetic base with a dial indicator 

on the lower part of the hub or of the brake 

drum. 

Adjust the thickness gauge on the center of the 

stub axle and clear the indicator. Figure 19. 

NOTE: 

Do not push or pull the hub or the brake 

drum by the upper part and the lower part. 

Pulling or pushing by the upper and lower 

part will not give the correct reading. 

5.Measure the play pushing and pulling on each 

side of the hub or drum while making the reading. 

The play is the total of the distance between 

pushing and pulling. If the play is not 

within 0.02 - 0.25 mm (0.001-0.005”), adjust 

the wheel bearings. Figure 19. 

6. If necessary, adjust the wheel bearings. See 

items from 7 to 13. 


Figure 20a 

With the magnetic base mounted on the lower part, push 

and pull the sides of the tire 

Adjustments 

Figure 20 

7. On the fasteners locked with double nuts, 

take off the lock washer from the lock nut. 

Remove the check nut, the lock washer and 

the perforated lock washer. Figure 20. 

On the fasteners with single nuts, remove the 

cotter pin from the adjustment nut. Figure 21. 

NOTE: 

When removing or installing adjustment 

nuts, use the correct size socket so as not 

to damage the hex form of the nut. 

CHECKNUT 

PERFORATED 

RETAINING 

RING 

LOCK WASHER 

OF THE CHECK- 

NUT 

ADJUSTMENT 

NUT 

Figure 21 

23

Adjustments 

ADJUSTMENT 

NUT 

COTTER PIN 

“D” OR WEDGED 

WASHER 

Figure 22 

NOTE: 

Do not strike the adjustment nut with a metal 

hammer. Do not use a chisel or punch to 

loosen the adjustment nut. This may cause 

damage to the nut. 

8. Use a torquemeter to tighten the adjustment 

nut with 100 ft-lbf (136 N.m) while turning the 

tire in both directions. 

9. Loosen the nut completely and then tighten 

with a torque of 20 ft-lbf (27 N.m) while turning 

the tire. 

10. On the single nut fasteners, do the following: 

1. TIGHTEN THE NUT 100 ft-lbf. 

(136 N.m) 

2. RELEASE THE NUT COM- 

PLETELY 

3. RELEASE THE NUT 

20 ft-lbf.. (27 N.m) 

Figure 23 

a. Return the adjustment nut 1/8 turn. Figure 

23. 

b. Turn the adjustment nut to align the slot with 

the nearest hole in the stub axle for placing 

the cotter pin. 

c. Install a new cotter pin in the nut. 

d. Measure axial play. Play must be within 0.02 

- 0.25 mm (0.001-0.005”). See items 4 - 5. 

Readjust if necessary. 

11. On the double nut and lock fasteners, do the 

following: 

a. Return the adjustment nut 1/3 turn. Figure 

24. 

b.Install the perforated retaining ring, the lock 

washer and the cotter pin. 

c. For checknuts of 41.3 mm (1 1/8”) to 66.7mm 

(2 1/8”), tighten with a torque of 200 - 300 ftlbf 

(271 - 407 N.m). 

For checknuts of 66.7 mm (2 1/8”) or more, 

tighten with a torque of 250 -400 ft-lbf (339 - 

542 N.m). 

d. Measure axial play. The play must be within 

0.02 - 0.25 mm (0.001-0.005”). See items 4 - 

5. Readjust if necessary. 

12. Install the gasket and hub cover. Install the 

bolts and tighten with a torque of 20 - 30 ft-lbf 

(27 - 41 N.m). 

13. Lower the vehicle to the ground. Check if the 

vehicle operates correctly. . 

RETURN THE NUT 1/8 TURN ON 

THE SINGLE NUT FASTENER AND 

1/3 TURN ON THE DOUBLE NUT 

Figure 24 


Adjustment of the maximum turning 

angle 

CAUTION: 

ADjUST THE MAXIMUM TURNINg ANgLE 

ONLy IF THE VEHICLE MANUFACTURER 

SPECIFIES THIS ADjUSTMENT. DO NOT IN- 

CREASE THE MAXIMUM TURNINg ANgLE. 

IF THE ANgLE IS INCREASED, THE CON- 

NECTINg ARMS, THE TIE bAR AND THE 

END OF THE TIE bAR WILL bE DAMAgED. 

Check the angle if the front tires rub against 

the fender or if the steering gear has undergone 

maintenance. Use alignment equipment 

to check the angle. Follow the procedures of 

the equipment manufacturer. 

The limiter bolt at the rear of the stub axle controls 

the maximum turning angle. 

or a hydraulic steering system, the limiter bolt 

MUST NOT touch the stub axle or the beam 

(depending on where it is installed). The limiter 

bolt must always have minimum play of 3 mm 

(1/8”), as shown in Figure 24. 

For the manual steering system, ArvinMeritor 

recommends play in the steering limiter bolt 

of 3 mm (1/8”). Contact with the limiter bolt is 

acceptable if no other limiters are used in the 

steering system. 

CAUTION: 

IF THE LIMITER bOLT IS MISSINg, bENT 

OR bROKEN, THE SySTEM REqUIRES ADjUSTMENTS. 

SEE MECHANICAL LIMITER 

IN THIS SECTION. 

NOTE: 

If the steering system is out of adjustment, 

check if the steering arm is not damaged. 

Use magnetic particles or penetrating fluid 

to check for the existence of cracks in the 

steering arm. Pay special attention to the elbow, 

cone and the area near the pivot. See 

the vehicle manufacturer manual in regard to 

other procedures. 


Adjustments 

CAUTION: 

IN THE HyDRAULIC STEERINg SySTEM, 

HyDRAULIC PRESSURE MUST bE RE- 

LIEVED OR REDUCED AT THE END OF THE 

STEERINg STROKE (WITH 3 MM OR 1/8 

MINIMUM PLAy ON THE LIMITER bOLT). 

IF THE PRESSURE IS NOT RELEASED, 

THE FRONT AXLE COMPONENTS WILL bE 

DAMAgED. 

1. Place a 3mm (1/8”) spacer between the limiter 

bolt and the boss on the axle beam. 

2. Turn the wheel until the boss on the axle 

beam touches the spacer in front of the limiter 

bolt. Measure the turning angle. 

3. If the turning angle is out of vehicle manufacturer 

specification, do the following: 

A. Loosen the checknut on the limiter bolt. 

B.Turn the limiter bolt until the specified angle is 

obtained. Figure 25. 

C. Tighten the checknut with the torque in accordance 

with the table on page 60. 

POSITION OF STUB AXLE IN REGARD TO 

ADJUSTMENT OF THE LIMITER BOLT 

MAXIMUM 

TURNING 

ANGLE 

CHECK NUT 

LIMITER 

BOLT 

Figure 25 

25

Adjustments 

Adjustment of pressure relief on the 

Hydraulic Steering System 

Pressure relief on the hydraulic steering system 

ceases or reduces the pressure applied to the 

axle in the entire turning stroke. 

Check pressure relief if the steering arm is damaged 

or if there is maintenance in the steering 

gear. 

Two types of systems are used for adjustment of 

pressure relief: 

• Mechanical limiter on the Pitman arm or on 

the auxiliary cylinder. 

• Hydraulic pressure relief on the steering gear. 

CAUTION: 

ARVINMERITOR DOES NOT RECOMMEND 

A HyDRAULIC STEERINg SySTEM THAT 

DOES NOT HAVE A MECHANICAL LIMITER 

OR A PRESSURE RELIEF bEFORE Ob- 

TAININg THE MAXIMUM TURNINg ANgLE. 

THE LIMITERS OR PRESSURE RELIEVERS 

ARE USED TO PREVENT DAMAgE TO THE 

AXLE. 

Mechanical Limiter 

Use a mechanical limiter on the steering system 

to adjust the pressure relief. 

Do not use the limiter bolt of the stub axle to adjust 

the pressure relief. 

NOTE: 

See the recommended procedure in the vehicle 

manufacturer manual. 

CAUTION: 

USE A PRESSURE gAUgE TO CHECK THE 

FALL OF PRESSURE IN THE MAXIMUM 

RELEASE SySTEM UP TO A LIMIT OF 700 

- 1.000 PSI (4825 - 6890 KPA) bEFORE COM- 

PLETINg THE TOTAL TURN. 

Systems with mechanical limiters are adjusted 

by 1/8 turn before the limiter bolt touches the 

boss on the axle beam. 

Adjustment is made in the turning positions totally 

to the left and totally to the right. Figure 26. 

POSITION OF STUB AXLE AFTER 

PITMAN/CYLINDER ARM LIMITERS 

CLEARED 

MAXIMUM TURN- 

ING ANGLE 

CHECK NUT 

LIMITER 

BOLT 

Figure 26 


Hydraulic Pressure Relief in the Steering 

gear. 

NOTE: 

See vehicle manufacturer specification. 

NOTE: 

The limiter bolt will always have minimum 

play of 3 mm (1/8”). 

Hydraulic steering gears with a poppet valve 

are adjusted with a spacer between the limiter 

bolt on the stub axle and the boss on the axle 

beam. The poppet valves are adjusted for cutting 

or reducing the pressure at the distance of 

the spacer. Figure 27. 

POSITION OF STUB AXLE FOR ADJUST- 

MENT OF THE POPPET VALVE 

TURNING 

ANGLE 

CHECK NUT 

LIMITER 

BOLT 


SPACER 

Figure 27 

Adjustments 

Turning Radius Angle 

See Figure 28. 

When one performs a curve, the internal wheel 

must turn at a greater angle than the external 

wheel. This angle is the turning radius angle (frequently 

called the Ackerman angle). The angle 

is constructed in the design of the connecting 

arms, ends of the connecting arms and the tie 

rod assembly to give the greatest possible contact 

of the tire with the ground and minimize 

wear during curves. 

Check the turning radius angle with the radius 

plates on the equipment for alignment. See 

the procedure in the equipment manufacturer 

manual. 

TURNING RADIUS ANGLE 

CENTER LINE OF THE 

FRONT AXLE 

CHASSIS CENTER 

LINE 

CENTER LINE OF 

THE REAR AXLE 

Figure 28 

27

Adjustments 

Inclination of the king pin 


NOTE: 

See vehicle manufacturer specifications in 

regard to inclination of the king pin. 

Inclination of the king pin (or steering axle) is the 

angle measured between the center line of the 

king pin and the vertical position (as seen from 

the front of the vehicle). The inclination of the 

king pin and the camber angle places approximately 

the center of the tire tread in contact with 

the ground. This reduces the force of the steering 

turn and improves steering stability. 

Use alignment equipment to check the inclination 

angle of the king pin. See the equipment 

manufacturer procedure. 

The inclination of the king pin is not adjustable. 

If the inclination does not have the specified angle, 

check if the axle beam or the stub axle is not 

damaged. Perform maintenance if necessary. 

INCLINATION OF THE KING PIN 

CAMBER 

INCLINATION OF 

THE KING PIN 

Figure 29 

CAMBER 

ZERO OR 

NEUTRAL 

Figure 30 

Camber angle 


THE CAMbER ANgLE IS NOT ADjUST- 

AbLE. ARVINMERITOR DOES NOT RECOM- 

MEND CHANgINg THE CAMbER ANgLE OR 

CURVE OF THE AXLE bEAM. IF THE AXLE 

bEAM IS CURVED TO CHANgE THE CAMbER 

ANgLE, RESISTANCE OF THE AXLE 

IS REDUCED AND THE gUARANTEE IS AN- 

NULLED. THE AXLE MAy bE DAMAgED. 

AN AXLE DAMAgED by bENDINg OF THE 

bEAM MAy CAUSE ACCIDENTS AND CON- 

SEqUENT PERSONAL INjURy. 

Camber is the tire angle with the respective 

ground. The camber is positive when the distance 

between the top of the wheels is greater 

than the distance at the base of the wheels. 

Creating a small positive camber is performed 

at the stub axle because the camber changes 

in accordance with the load. This results in a 

zero camber angle when the vehicle operates 

under normal load. 

If the camber is more than 1 1/2 degrees outside 

of that specified, tire wear will occur. Diagonal 

tires more easily show camber excess, 

while in radial tires, this excess is not so evident. 


LOAD 

POSITIVE

The camber is not adjustable. The camber angle 

is obtained in machining of the axle beam. If the 

camber angle is not within specifications, check 

the axle beam or the stub axle in regard to wear 

or damage. Perform maintenance if necessary. 

Use alignment equipment to verify camber 

angle. See the equipment manufacturer procedures. 

Figure 30 

CONDITIONS 

• Camber angle 

machined in the axle 

• Hubs not installed 

• Hub not installed in the 

vehicle 

• Axle without load 

• Axle camber angle with 

hubs installed 

• Axle not installed in the 

vehicle 

• Axle withou load. 

• Camber angle with load 

• Axle installed in the 

vehicle 

NOTE: 


CAMBER ANGLE RECOMMENDATIONS 

OLD CAMBER 

SPECIFICATION 

AXLES WITH ASSEMBLY 

DATES: 

No date on the plate 

August 1992 or before 

Any date suffix “P” 

LEFT 

SIDE 

RIGHT 

SIDE 

Adjustments 

See vehicle manufacturer specifications in regard 

to the correct camber. The table in Figure 

31 shows the specifications that ArvinMeritor 

uses on the axles, but always in accordance 

with the vehicle manufacturer specifications. 

NEW CAMBER 

SPECIFICATION 

AXLES WITH AS- 

SEMBLY DATES: 

September 1 

1992 or after 

without “P” suffix 

LEFT AND 

RIGHT SIDES 

+ 45’ Nominal + 15’ Nominal + 15’ Nominal + 1º Nominal 

+45’ ( +_ 26’) 

ou 

+1º11’ a +19’ 

(final reading) 

+41’ a 11’ 


+15’ ( +_ 26’) 

+15’ ( +_ 26’) 

+1° ( +_ 26’) 

ou 

ou 

ou 

+41’ a -11’ 

+41’ a -11’ 

+1° 26’ a 34’ 

(final reading) (final reading) (final reading) 

+11’ a -41’ 


MFS - 013 

FF 844 CURRENT 

LEFT AND RIGHT 

SIDES 

+11’ a -41’ 


ONLY AMERICAN 

AXLES 

AXLES IN 

BRAZIL 

+1° 26’ a 34’ 


MFS08RA 

FD 833 - MFS - 09 

5301 - MFS 06 

FC 845 - MFS 07 

29

Adjustments 

Identification of the assembly date of 

the front axle 

All the necessary information regarding assembly 

of the axle, including the date, for any Arvin- 

Meritor axle is on the identification plate. Figure 

31. 

The identification plate is fastened in the center 

of the axle beam. 

Before beginning service operations, identify the 

unit to be repaired. This information will allow 

correct identification of the spare parts desired, 

thus allowing execution of a more rapid and precise 

service operation. 

Model (Model) 

Cust.No. (Customer number) 

Part.No. (Product number) 

Ratio (Reductions of the differential) 

Série No. (Series n°) 

Date (Date of manufacture) 

BEAM SEEN FROM FRONT OF VEHICLE 

EXAMPLE OF IDENTIFICATION PLATE 

Figure 31 


Caster angle 


The caster angle is the angle of the vertical line 

up to the center line of the king pin when viewed 

from the side of the vehicle. If the top of the center 

line of the king pin is turned toward the rear of 

the vehicle, the caster angle will be positive. The 

positive caster creates a moment of self alignment 

to stabilize the vehicle when traveling in 

a straight line forward. If the caster angle is too 

much, it will increase the steering turning effort 

or it may increase vibration of the front wheels. 

The caster angle is controlled by tempered 

shims installed under the spring assembly. Adjust 

the caster angle in accordance with the vehicle 

manufacturer procedure. 

Use alignment equipment to verify the caster 

angle. See the vehicle manufacturer procedure. 

he caster specifications are provided by the vehicle 

manufacturer. See the vehicle manufacturer 

specifications to adjust the caster angle. 

If the manufacturer specifications are not available, 

ArvinMeritor recommends a caster adjustment 

of +1o to + 2- 1/2o for vehicles with manual 

steering and +2o to +4 -1/2o for vehicles with 

hydraulic steering. Axles model FE-970 and FE- 

971 have a recommended caster angle of -1/2o 

to -2o. 

NEGATIVE 

CASTER 

FORWARD 

Center line of the 

king pin 


POSITIVE 

CASTER 

Figure 33 

Adjustments 

Divergence adjustment 

Specifications: 

In accordance with vehicle manufacturer 

specifications. 

Divergence is the ratio of distance between the 

fronts of the front tires and the back of these 

same tires. When the distance in front is less 

than in back, the wheels are in divergence. Divergence 

is necessary to go against the tendency 

for “convergence” of the tires when the 

vehicle is in movement. Incorrect divergence results 

in rapid wear of tires. 

CAUTION: 

MOST CASES OF TIRE WEAR ARE CAUSED 

by INCORRECT DIVERgENCE. DO NOT 

CHANgE THE CAMbER OR ADjUST THE 

CASTER TO CORRECT TIRE WEAR PROb- 

LEMS. IF THE AXLE ASSEMbLy WAS DAM- 

AgED (bENT) TO CORRECT CASTER OR 

CAMbER, AXEL RESISTANCE IS REDUCED 

AND, AS A RESULT, THE gUARANTEE IS 

ANNULLED. AN AXLE DAMAgED by bEND- 

INg OF THE bEAM MAy CAUSE ACCIDENTS 

AND CONSEqUENTLy PERSONAL INjURy. 

1.Check that the vehicle is on a flat surface. 

Place shims under the rear wheels to keep 

the vehicle from moving. Raise the vehicle 

until the tires are off the ground. 

2.Use paint or chalk to mark the central area of 

both tires around their entire perimeter. 

3. Place the calibrator bar indicators on the 

marks of each tire. Check that a straight 

line will be marked on each tire, completely 

around it. 

31

Adjustments 

NOTE: 

Do not measure divergence with the front 

axle raised (off the ground). The weight of 

the vehicle must be on the axle when divergence 

is measured. 

4 Lower the vehicle to the ground. Move the 

vehicle forward and backward at a distance 

of 3 meters. 

5. Place the calibrator bar behind the tires. 

Raise the pointers until they are at the same 

height as the stub axles. Align the pointers 

with the marks on the tires. Measure and 

note the distance between the pointers. 

6. Place the calibrator bar in front of the tires. 

Raise the pointers until they are at the same 

height as the stub axles. Align the pointers 

with the marks on the tires. Measure and 

note the distance between the pointers. 

Figure 33. 

7. To obtain the result of the measurement, 

subtract the value obtained in the front of the 

tire from the value from the back. Figure 34. 

8.If the divergence is outside of specifications, 

use the following procedure: 

a. Loosen the nut and bolt in each end of the 

tie bar. 

b.Turn the tie bar until the specified divergence 

is obtained. 

c. Tighten the nut and bolt at each end of the 

tie bar with the specified torque. See the 

Torque Table. 

9. Repeat items from 1 to 7 to check the dimension 

of the divergence. 

FRONT OF VEHICLE 

B MINUS A IS EQUAL TO DIVERGENCE 

Figure 34 

Figure 35 


Removal of the tie rod 


1. Remove the cotter pins from the pivots. 

2. Remove the nuts from the pivots. 

3. Disconnect the tie rod from the Pitman arm 

and from the steering arm. 

4. Inspect the tie rod. See the section Preparation 

of Parts for Assembly. 

PITMAN 

ARM 

TIE ROD 


STEERING 

ARM 

Figure 36 

Removal of the steering arm 

Adjustments 


1. Remove the cotter pin and the nut that fasten 

the steering arm to the tie rod. Disconnect the 

steering arm. 

2. Remove the cotter pin and the nut that fasten 

the steering arm to the stub axle. 

3. Remove the steering arm from the stub axle. 

If necessary, strike the end of the arm with 

a plastic or leather hammer to separate the 

steering arm from the stub axle. 

4. Remove the key from the steering arm. 

5. Inspect the steering arm. See the section 

Preparation of Parts for Assembly. 

STEERING 

ARM 

TIE ROD 

Figure 37 

33

Removal 

Removal of the connecting arms, pivots 

of the tie bar, and the tie bar 

1. Remove the cotter pins and the nuts that fasten 

each pivot to the connecting arms. 

2. Disconnect the tie bar, connecting arm assembly 

Is necessary, use a tool to separate 

the connecting arm from the tie bar. Figure 38. 

3. Remove the cotter pins and the nuts that fasten 

connecting arms to the stub axles. 

4. Remove the connecting arms from the stub 

axles. If necessary, strike with a plastic or 

leather hammer to separate the connecting 

arm from the stub axle. Remove the key. 

CONNECTING 

ARM 

PIVOT OF THE 

TIE BAR 

Figure 38 

5. If necessary, remove the ends of the tie bar. 

Follow the following procedures: Figure 38. 

TIE BAR 

Figure 39 

a.Mark the position at which each end is installed 

on the tie bar. 

b. Remove the nuts and bolts of the clamp on 

the tie bar. 

c. Remove the pivots of the tie bar. 

6. The clamp may be turned to facilitate removal 

of the nut and bolt. Figure 40. 

NUT AND 

BOLT 

PIVOT OF THE TIE BAR 

MARKS 

CLAMP 

Figure 40 

7.Inspect the parts. See the section Preparation 

of Parts for Assembly. 


Removal of the wheel ends 

WARNINg: 

Do not work under the vehicle that is supported 

only by a jack because the jack might slip and 

cause serious personal injuries. 

1. Raise the vehicle until the wheels leave the 

ground. Support the vehicle with safe stands. 

2. Remove the bolts that fasten the hub cover. 

Remove the cover and gasket. 

NOTE: 

When loosening or tightening the adjustment 

nuts, always use a correct size socket 

to avoid damaging the nuts. 

3. Remove the fasteners of the wheel bearings. 

Follow the procedures below: 

Double Nut Fasteners 

a.Unfold the loops of the lock washer of the 

checknut and adjustment nut. 

b.Remove the checknut, the lock washer, the 

perforated retaining ring and the adjustment 

nut of the stub axle. Figure 40. 

DOUBLE NUT AND 

ADJUSTMENT LOCK 

PERFORATED 

RETAINING RING 

CHECKNUT 

LOCK WASH- 

ER OF THE 

CHECK NUT 


ADJUSTMENT 

NUT 

Figure 41 

Removal 

Fasteners with Single Nut 

a. Remove the cotter pin from the adjustment 

nut. Figure 4. 

b. Remove the adjustment nut and the “D” or 

wedged washer as may be the case from the 

stub axle. Figure 42. 

4. Remove the cone of the outside wheel bearing 

from the hub. 

5. Remove the wheel and the tire, the hub and 

the drum as a set. 

ADJUSTMENT WITH SINGLE NUT 

ADJUSTMENT 

NUT 

COTTER PIN 

“D” OR WEDGE 

WASHER 

Figure 42 

Removal of the king pins and stub axles 

1. Remove the wheel ends as described in this 

section. 

2. Remove the air from the brake system. Disconnect 

the air lines of the brakes. 

3. Remove the braking assembly from the stub 

axle. 

4. Remove the connecting arms, steering arm 

from the stub axle. See the procedure in this 

section. 

35

Removal 

5. Remove the bolts of the covers on the top 

and lower part of the stub axle. Remove the 

covers and gaskets. Figure 43. 

NOTE: 

All models except for FC-901, FC-922, FE- 

970, FF-971 and FL-901 use threaded keys. 

The models FC-901, FC-922, FE-970, FF-971 

and FL-901 use flat keys. 

6.Remove the flat or threaded keys. Follow the 

following procedure: 

Removal of the Flat Key 

COVER 

GASKET 

Figure 43 

WARNINg: 

Wear safety goggles. Do not strike steel parts 

or tools with a steel hammer because fragments 

may come off and cause injury. 

a.Use a bronze hammer and a steel punch to 

remove the key. Support the punch at the 

smaller end (“D” profile) of the key. Figure 44. 

Figure 44 

Removal of the Threaded Keys 

a. Loosen the lock nut until the top of the nut 

is even with the end of the key. 

WARNINg: 


or tools with a steel hammer because fragments 

may come off and cause injury. 

CAUTION: 

FORCE MUST bE APPLIED DIRECTLy ON 

THE EXTREMITy OF THE NUT EVEN WITH 

THE KEy. IF FORCE IS NOT APPLIED DI- 

RECTLy AT THIS LOCATION, THE KEy MAy 

bE DAMAgED. 

b.Use a bronze punch and a hammer to 

strike the end of the nut to loosen the key. 

Figure 44. 

c. Remove the nut of the key. Remove the 

key from the stub axle. 


NUT 

KEY 

NOTE: 

If the bushings are not replaced, follow the 

following procedure to prevent any damage 

during removal of the king pin. 

1. Remove any chip on the punch that may 

touch the king pin. 

2. Cover the end of the punch with adhesive 

tape. 

NOTE: 

o optimize tire wear on roads with regular 

surfaces, the housings of the right and left 

king pins on the beam are machined for 

slightly different angles of the king pin. The 

front of the beam must be installed turned 

to the front of the vehicle. 

The front of the beam is marked by the identification 

plate fastened on it and/or a small 

paint mark on the left side of the beam. If the 

plate and the paint mark are absent, identify 

the front of the beam for correct installation. 

In brazil, only the FF front axle model needs 

this identification. 

7.Use a bronze punch and a hammer to remove 

the king pin from the stub axle. Figure 

46. 

If there is difficulty in removal of the king pin, 

use a hydraulic king pin remover. See Table of 

Special Tools section. 


Figure 45 

PINO 

MAESTRO 

Removal 

Figure 46 

WARNINg: 

Use gloves when removing the shims because 

they have sharp edges. 

NOTE: 

Identify the stub axle in relation to the side 

of the beam. 

8. Remove the stub axle from the beam. Remove 

the shims (if any), the axial bearing 

and the seal between the beam and the stub 

axle. Figure 47. 

9. Inspect the parts. See Preparation of Parts for 

Assembly section. 

SHIMS (BE- 

TWEEN THE 

BEAM AND THE 

STUB AXLE) 

AXIAL BEARING 

AND SEAL 

Figure 47 

37

Removal 

Removal of bushings from the stub axle 

1. Remove and discard the front seal of the 

bushing. Figure 48. 

SEAL 

Figure 48 

2. Remove the bushings in accordance with the 

following procedure: Nylon bushings 

a. Remove the upper and lower bushings from 

the stub axle. Figure 49. 

NYLON 

BUSHING 

Figure 49 

bronze and Easy Steer® bushings 

NOTE: 

In the axle series FF, Fg and FL, the bushings 

may be removed with a kit for bushing 

Maintenance. See Special Tool Table. 

Página 62 

a.Make a tool to remove the bushings. See the 

dimensions for the tool in Figure 50. 

b. Place the stub axle in a 5 ton capacity press. 

Check that the stub axle will not move during 

removal of the bushing. 

c. Install the tool on the top bushing. Press the 

bushing out of the housing in the stub axle. 

Figure 50. 

d.Install the tool on the lower bushing. Press 

the bushing out of the housing in the stub 


UPPER BUSHING 

LOWER BUSHING 

Figure 50 


MOD/ 

NUM 


DIMENSIONS OF THE BUSHING INSTALLATION AND REMOVAL TOOL 

APPROPRIATE LENGTH 

DIMENSION “X” DIMENSION “Y” 

_(+ 0,025 mm) _(+ 0,001 mm) _(+ 0,025 mm) _(+ 0,001 mm) 

FC-901 31.191 1.128 34.290 1.350 

FC-903 31.191 1.128 34.290 1.350 

FC-921 31.191 1.128 34.290 1.350 

FC-941 37.922 1.493 41.097 1.618 

FD-901 36.245 1.427 39.420 1.552 

FD-931 40.640 1.600 43.815 1.725 

MFS-09 

FD-833 

40.640 1.600 43.815 1.725 

FD-933 40.640 1.600 43.815 1.725 

FD-961 45.364 1.786 48.539 1.911 

FE-970 40.640 1.600 43.815 1.725 

FF-921 45.389 1.787 48.539 1.911 

FF-931 45.389 1.787 48.539 1.911 

FF-932 45.389 1.787 48.539 1.911 

FF-933 45.389 1.787 48.539 1.911 

FF-934 45.389 1.787 48.539 1.911 

FF-941 45.364 1.786 48.539 1.911 

FF-942 45.364 1.786 48.539 1.911 

FF-943 45.364 1.786 48.539 1.911 

MFS-13 

FF 944 

45.364 1.786 48.539 1.911 

FF-961 45.364 1.786 48.539 1.911 

FF-971 40.640 1.600 43.815 1.725 

FG-931 45.389 1.787 48.539 1.911 

FG-933 45.389 1.787 48.539 1.911 

FG-941 45.364 1.786 48.539 1.911 

FG-943 45.364 1.786 48.539 1.911 

FL-931 50.596 1.992 53.746 2.116 

FL-933 50.596 1.992 53.746 2.116 

FL-941 50.546 1.990 53.746 2.116 

FL-943 50.546 1.990 53.746 2.116 

FL-951 50.596 1.992 53.746 2.116 

FU-910 52.171 2.054 55.346 2.179 

FU-935 52.171 2.054 55.346 2.179 

MFS-07 

MFS-08RA 

31.191 1.228 34.290 1.350 

MFS-06 

5301 

28.448 1.120 31.5514 1.242 

Removal 

Figure 51 

39

Preparation for the assembly 

Recovery of parts 

The recovery or reconditioning of parts of the 

front axle is not permitted. ArvinMeritor recommends 

replacement of parts which are damaged 

or outside of specification. Most of the 

parts have thermal treatment (tempered). 

Parts may not be curved, welded, heated 

or reconditioned under any circumstances 

without reducing their resistance and durability 

and thus annulling their guarantee. 

The following operations are prohibited on the 

front axle components: 

1. Welding on the steering arm, stub axle, king 

pins, axle beam, tie bar assembly, hubs and 

brake drums. 

2. Bending (twisting), either hot or cold, the stub 

axle, steering arm, connecting arms, pivots, 

axle beam and tie bar. 

3. Enlarging the holes for the king pin in the 

beam. 

4. Enlarging the holes for the key in the stub 

axle. 

5. Weld spatters on the diameters for stub axle 

bearings and machined housings. 

6. Grinding or machining any component. 

WARNINg: 

If you use solvents, hot solution tanks or alkaline 

solutions incorrectly, you are subject to serious 

accidents that may cause you injury. To 

handle these elements correctly and prevent 

accidents, read the manufacturer’s instructions. 

DO NOT use gasoline to clean parts because 

it is explosive. 

Cleaning of ground or polished parts 

Use a chemical product appropriate for cleaning 

of the ground or polished surfaces. Kerosene 

or diesel fuel may be used for this purpose. 

DO NOT USE GASOLINE. 

DO NOT wash ground or polished parts in tanks 

with hot solutions or water, steam or alkaline 

solutions. These solutions cause corrosion of 

the parts. 

Cleaning of non-machined parts 

Non-machined parts may be washed together 

with the ground or polished parts. 

Non machined parts may also be washed in 

tanks with light alkaline and hot solutions. The 

parts may be left in the tank with a hot solution 

until they are completely clean. 

Drying of the washed parts 

The parts must be dried immediately after 

washing. Dry the parts with paper, clean cloths 

or compressed air. Do not use compressed air 

on bearings. 

Rust and corrosion prevention on washed 

parts 

Apply a thin layer of oil on the washed and dried 

parts that are not damaged and will be immediately 

reassembled. DO NOT apply oil on brake 

linings and brake drums. 

If the parts are stored, apply a coat layer of antirust 

oil on all the surfaces. DO NOT apply oil on 

brake linings and brake drums. Store the parts 

wrapped in special paper or other material that 

protects them from rust. 


Inspection of parts 

Carefully inspect all the parts before assembling 

them. See the procedures below: 

A. Inspect and replace any part that is worn, 

cracked or damaged. Check for the existence 

of cracks with magnetic or fluorescent particles. 

B.Use a micrometer or a bore gauge to measure 

the housing on the stub axle. Measurement 

made at the top and at the bottom of the housing 

around the perimeter is acceptable. Check 

that the bushings were removed from the stub 

axle. 

Measure the diameter of the upper housing 

at two positions 90° opposite. If the means of 

the values obtained are greater than that specified 

for the maximum diameter of the housing 

of the bushing on the stub axle in Figure 60, 

replace the stub axle. Figure 52. 

Use the same procedure for measurement of 

the lower housing. 

MEASURE THE HOUSING 

ON THE STUB AXLE IN 4 

POSITIONS WITH 90° OP- 

POSITION 


Figure 52 


C. Use A micrometer or bore gauge to measure 

the diameters of the bushings on the 

stub axle. 

Measure the diameter of the upper bushing at 

two positions 90° opposite. If the means of the 

values obtained are greater than that specified 

for the maximum internal diameter of the king 

pin bushing in Figure 60, replace the bushing 

of the stub axle. Figure 53. 

Use the same procedure for measurement of 

the lower bushing. Figure 53 

MEASURE THE DIAMETER 

OF THE BUSHING ON THE 

STUB AXLE IN 4 POSI- 

TIONS WITH 90° OPPOSI- 

TION 

Figure 53 

D. Use a micrometer or bore gauge to measure 

the housing on the beam. Measurement 

made at the top and bottom around 

the perimeter is acceptable. 

Measure the diameter of the housing of the 

upper side at three positions with 90° opposition 

(13 mm below the top and 13 mm above 

the bottom and in the center of the length). If 

the means of the values obtained are greater 

than that specified for the maximum diameter of 

the boss on the beam in Figure 60, replace the 

beam. Figure 54. 

41


MEASURE THE 

HOUSING ON 

THE BEAM IN 

4 POSITIONS 

WITH 90° OP- 

POSITION 

Figure 54 

Inspection of the wheel bearings 

Inspect the wheel bearings when the stub axle 

is inspected or undergoes maintenance. 

Remove all the lubricant from the bearings, 

stub axle, hub and hub cover. 

Inspect the cover, the cone, the rollers and the 

cage of all the bearing. If any of the following 

conditions are found, the bearing must be replaced. 

1. Accentuated wear on the broad surface of 

the tapered rollers, with nearly total elimination 

of the center recess. Figure 55. 

2. Worn radius, with sharp edges on the broad 

surface of the rollers. Figure 55. 

RECESSED 

CENTER 

SHARP EDGES 

LEVEL OF 

WEAR 

Figure 55 

3. Wear (with visible recess) on the track of the 

cover or of the cone. Wear may be seen on 

the larger or smaller diameters of the cover or 

the cone. Figure 56. 

Figure 56 

4. Deep indentations, cracks or breakage in the 

seats of the cover and/or of the cone, or on 

the surfaces of the tapered rollers. 



Figure 57 

5. Signs of friction on the cage of the tapered 

rollers. 

Figure 58 

6. Corrosion (chemical action) or cavities on the 

rollers and on the surfaces of the tracks of the 

cover and of the cone. Figure 58. 

7. Chipping or scaling on the surface of the cover 

and/or of the cone. Figure 59. 


Figure 59 

43


Figure 60 - SPECIFICATIONS OF WEAR LIMITS 

MOD/ 

NUM 

NOTES: 

*Stub axle with nylon bushings. 

**Stub axle with bronze bushings. 

MAXIMUM DIAMETER OF THE 

bUSHINg HOUSINg ON THE 

STUb AXLE 

MAXIMUM DIAMETER OF bOSS 

ON bEAM 

MAXIMUM DIAMETER OF THE 

INNER PART OF THE KINg PIN 

bUSHINg 

FC-901* 34.569 mm (1.361”) 31.445 mm (1.238”) 31.496 mm (1.240”) 

FC-903** 34.569 mm (1.361”) 31.445 mm (1.238”) 31.442 mm (1.238”) 

FC-921* 34.569 mm (1.361”) 31.445 mm (1.238”) 31.496 mm (1.240”) 

FC-941** 34.569 mm (1.361”) 31.445 mm (1.238”) 31.442 mm (1.238”) 

FC-921 34.582 mm (1.3615”) 31.445 mm (1.238”) 31.407 mm (1.2365”) 

FC-941 41.389 mm (1.6295”) 38.202 mm (1.504”) 38.151 mm (1.502”) 

FD-901 39.700 mm (1.563”) 36.512 mm (1.4375”) 36.525 mm (1.438”) 

FD-931 44.094 mm (1.736”) 40.919 mm (1.6110”) 40.907 mm (1.6105”) 

MFS-09 

FD-833 

44.094 mm (1.736”) 40.919 mm (1.6110”) 40.907 mm (1.6105”) 

FD-933 44.094 mm (1.736”) 40.919 mm (1.6110”) 40.907 mm (1.6105”) 

FD-961 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FE-970 44.094 mm (1.736”) 40.919 mm (1.6110”) 40.907 mm (1.6105”) 

FF-921 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FF-931 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FF-932 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FF-933 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FF-934 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FF-941 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FF-942 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FF-943 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

MFS-13 

FF 944 

48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FF-961 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FF-971 44.094 mm (1.736”) 40.906 mm (1.6105”) 40.907 mm (1.6105”) 

FG-931 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FG-933 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.656 mm (1.7975”) 

FG-941 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FG-943 48.818 mm (1.922”) 45.669 mm (1.7980”) 45.618 mm (1.796”) 

FL-931 54.025 mm (2.127”) 50.876 mm (2.0030”) 50.825 mm (2.0010”) 

FL-933 54.025 mm (2.127”) 50.876 mm (2.0030”) 50.825 mm (2.0010”) 

FL-941 54.025 mm (2.127”) 50.876 mm (2.0030”) 50.825 mm (2.001”) 

FL-943 54.025 mm (2.127”) 50.876 mm (2.0030”) 50.825 mm (2.001”) 

FL-951 54.025 mm (2.127”) 50.876 mm (2.0030”) 50.876 mm (2.0030”) 

FU-910 55.626 mm (2.190”) 52.464 mm (2.0655”) 52.438 mm (2.0645”) 

FU-935 55.626 mm (2.190”) 52.464 mm (2.0655”) 52.438 mm (2.0645”) 

MFS-07 

FC-845 

34.540 mm (1.359”) 31.394 mm (1.2356”) 28.530 mm (1.1232”) 

MFS-06 

5301 

31.788 mm (1.251”) 28.715 mm (1.1305”) 31.270 mm (1.2311”) 


Installation of nylon bushings on the 

stub axle 

Install the bushings on the housings of the stub 

axles. Check that the bushings are well seated 

in the housing. Place the king pin to check if the 

installation is correct. Figure 61. 

Installation of bronze and Easy Steer® 

bushings on the stub axle 

NOTE: 

On the axles series FF, Fg and FL, the bushings 

may not be installed without the aid of 

a press. Use the bushing installation kit. 

Use the tool shown in Figure 51 to install 

the bushings. 

Use a press with minimum capacity of 5 tons. 

Check that the bushing does not move out of 

alignment during installation. 

Ream the bronze and Easy Steer® bushing after 

installation. 


NYLON 

BUSHING 

Figure 61 

Installation 

Installation of bronze bushings on the 

stub axle 

1. First install the upper bushing. 

2. Place the stub axle in a press such that the 

top of the stub axle is turned toward the piston 

of the press. Check that the housings are 

parallel with the piston of the press. 

3. Install the bushing in the housing. Check that 

the hole in the bushing is aligned with the 

hole in the housing. Figure 62. 

4.Use the installation tool and press the bushing 

3.17 mm (1/8”) into the housing. Release 

the pressure from the press. Check the bushing 

alignment. 

5. Press the bushing until it is from 3.0 to 4.0 

mm (0.135 to 0.165”) from the bottom of the 

housing. Figure 63. 

6. Turn the stub axle until the housing of the 

lower bushing is turned to the piston of the 

press. Check that the housing is parallel to 

the piston of the press. 

7. Install the lower bushing in the housing. 

Check that the hole in the bushing is aligned 

with the hole in the housing. 




alignment. 


mm (0.135 to 0.165”) from the bottom of the 

housing. Figure 64. 

10. Ream the bushings. See the procedure in 

this section. 

45

Installation 

INSTALLATION 

TOOL 

LOWER 

BUSHING 

UPPER 

BUSHING 

Figure 62 

Figure 63 

Figure 64 

Installation of the Easy Steer® bushings 

on the stub axle 



top of the stub axle is turned to the piston of 

the press. Check that the housings are parallel 

to the piston of the press. 

3. Install the bushing in the housing. 




alignment. 


mm (0.352 to 0.382”) below the top of the 

housing on the stub axle. Figure 65. 

6. Turn the stub axle until the housing of the 

lower bushing is turned to the piston of the 

press. Check that the housing is parallel to 

the piston of the press. 



3.17 mm (1/8”) into the housing. 

Release the pressure from the press. Check 

the bushing alignment. 


mm (0.352 to 0.382”) below the top of the 

housing on the stub axle. Figure 65. 

10. Ream the bushings. See the procedure in 

this section. 

TOP OF 

THE UPPER 

BUSHING 

TOP OF 

THE LOWER 

BUSHING 

DIAMETER OF THE 

REAMED BUSHINGS 

Figure 65 


INSTALLATION 

TOOL 

UPPER 

BUSHING 


LOWER 

BUSHING 

Figure 66 

Figure 67 

Installation 

Installation of needle bearing on the 

shaft 



top of the stub axle is turned to the piston of 

the press. Check that the housings are parallel 

to the piston of the press. 

3.Install the bushing in the housing. 


housing. Release the pressure of the 

press. Be sure of the alignment of the bushing. 

5. Press the upper bushing until it is 8:40 to 

9.0 mm (0331 to 0362 “) below the top of the 

housing on the shaft end. Figure 65. 

6. Rotate the shaft end until the lower bushing 

housing is facing the piston of the press. Be 

sure that the bushing is parallel with the piston 

of the press. 


8.Use the installation tool and crush the bushing 

housing. Release the pressure of the press. 

Be sure of the alignment of the bushing. 

9. Press the lower bushing until it is in 6.10 to 

6.90 mm (0240 to 0272 “) below the top of the 

housing on the shaft end. Figure 65. 

TOP OF 

THE UPPER 

BUSHING 

TOP OF 

THE LOWER 

BUSHING 

Figure 68 Figure 69 

47

Installation 

Reaming of the bronze and Easy Steer® 

bushings on the stub axle 

CAUTION: 

THE ONLy RECOMMENDED PROCEDURE 

IS REAMINg WITH A FIXED REAMER. DO 

NOT gRIND OR PERFORM bURNISHINg 

ON THE bUSHINgS bECAUSE THEy MAy 

bE DAMAgED. 

1. Place the stub axle in a vice with bronze jaws 

or other soft metal. 

2. See Figure 70 in regard to the dimension of 

the reamer. 

3. Guide the reamer with the pilot until the 

blades touch the upper bushing. Figure 66. 

REMOVABLE 

PILOT OPTIONAL 

MATERIAL: HIGH SPEED STEEL 

NUMBER OF BLADES: USE 10 - 14 BLADES 

TURN THE REAMER 

PRESSING LIGHTELY 

DOWNWARD 

Figure 70 

4. Turn the reamer, pressing it lightly downward. 

Do not apply a great deal of force. Turn 

the reamer gently. 

5.Upon finishing reaming the upper bushing, 

do not allow the reamer to fall on the lower 

bushing. 

6. After reaming the upper bushing, place the 

reamer in the lower bushing and repeat steps 

3 and 5. Figure 71. 

Figure 71 

7. Remove the reamer from the lower bushing. If 

the reamer must be removed through the upper 

bushing, turn it in the direction opposite to 

the cut. 

8. Clean all the material removed by the reamer 

that remained on the bushings. 

DIMENSIONS OF THE BUSHING REAMERS (see the table) 

REAMER 

MINIMUM 

GENERAL SPECIFICATIONS FOR REAMERS 

TURN THE REAMER 

PRESSING LIGHTELY 

DOWNWARD 

CUT OF THE BLADES: TO THE RIGHT, SPLINE TO THE LEFT 

LENGTH OF THE BLADES: 63,5 MM (2,5”) 

Figure 72 


Figure 68 (continuation) - DIMENSIONS OF THE BUSHING REAMERS 

MOD/ 

NUM 

LOWER PILOT 

DIAMETER DIMEN- 

SION “A” _(+ 0.025 

mm or 0.0001” 


DIAMETER OF THE 

bLADES DIMEN- 

SION “A” _(+ 0.013 

mm or 0.0005” 

UPPER PILOT 

DIAMETER DIMEN- 

SION “C” _(+ 0.025 

mm or 0.0001” 

LOWER PILOT 

LENgTH DIMEN- 

SION “D” 

Installation 

UPPER PILOT 

MINIMUM LENgTH 

DIMENSION “E” 

mm inch mm inch mm inch mm inch mm inch 

FC-901 31.051 1.2225 31.432 1.2375 31.293 1.2320 171.45 6.75 222.25 8.75 

FC-901* 31.051 1.2225 31.432 1.2375 31.293 1.2320 171.45 6.75 222.25 8.75 

FC-903 31.051 1.2225 31.432 1.2375 31.293 1.2320 171.45 6.75 222.25 8.75 

FC-921 31.051 1.2225 31.432 1.2360 31.298 1.2320 171.45 6.75 222.25 8.75 

FC-941 37.782 1.4875 38.138 1.5015 37.999 1.4960 226.06 8.90 276.86 10.90 

FC-901 36.118 1.4220 36.499 1.4370 36.360 1.4315 215.90 8.50 266.70 10.50 

FD-901* 36.118 1.4220 36.499 1.4370 36.360 1.4315 215.90 8.50 266.70 10.50 

FD-931 40.513 1.5950 40.894 1.6100 41.669 1.6405 215.90 8.50 266.70 10.50 

MFS-09 

FD-833 

40.513 1.5950 40.894 1.6100 41.669 1.6405 215.90 8.50 266.70 10.50 

FD-933 40.513 1.5950 40.894 1.6100 41.669 1.6405 215.90 8.50 266.70 10.50 

FD-961 45.212 1.7800 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FE-970 40.513 1.5950 40.894 1.6100 41.669 1.6405 215.90 8.50 266.70 10.50 

FF-921 45. 263 1.7800 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FF-931 45. 263 1.5950 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FF-932 45. 263 1.7820 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FF-933 45. 263 1.7820 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FF-934 45.263 1. 7820 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FF-941 45.212 1. 7820 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FF-942 45.212 1. 7820 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FF-943 45.212 1.7800 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

MFS-13 

FF 944 

45.212 1.7800 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FF-961 45.212 1.7800 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FF-971 40.513 1.5950 40.894 1.6100 41.669 1.6405 215.90 8.50 266.70 10.50 

FG-931 45.263 1.7820 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FG-933 45.263 1.7820 45.644 1.7970 45.504 1.7915 236.22 9.30 287.02 11.30 

FG-941 45.212 1.7800 45.606 1.7955 45.466 1.7900 260.35 10.25 311.15 12.25 

FG-943 45.212 1.7800 45.606 1.7955 45.479 1.7900 260.35 10.25 311.15 12.25 

FL-931 50.470 1.9870 50.863 2.0025 50.724 1.9970 256.54 10.10 307.34 12.10 

FL-933 50.470 1.9870 50.863 2.0025 50.724 1.9970 256.54 10.10 307.34 12.10 

FL-941 50.419 1.9850 50.813 2.0005 50.673 1.9950 256.54 10.10 307.34 12.10 

FL-943 50.419 1.9850 50.813 2.0005 50.673 1.9950 256.54 10.10 307.34 12.10 

FL-951 50.419 1.9850 50.813 2.0005 50.673 1.9950 256.54 10.10 307.34 12.10 

FU-910 52.045 2.0490 52.426 2.0640 52.285 2.0585 287.52 11.32 338.32 12.32 

FU-935 52.045 2.0490 52.426 2.0640 52.285 2.0585 287.52 11.32 338.32 12.32 

MFS-07 

FC-845 

MFS-06 

5301 

30.950 1.2185 31.394 1.2359 31.331 1.2335 183.2 7.232 250.0 9.84 

28.205 1.1104 28.717 1.1310 28.652 1.1280 183.2 7.232 250.0 9.84 

* Use these specifications at the time of replacing the old bushing by an Easy Steer® bushing. 

49

Installation 

Installation of the bushing seals of the 

stub axle 

1. Place the top of the stub axle in a vice with 

bronze jaws. The lower part must be turned 

toward you. 

2.Place the seal in the top of the housing. The 

lip of the seal must be turned outward from 

the housing. Figure 73. 

THE LIPS MUST BE 

TURNED OUTWARD FROM 

THE HOUSING 

Figure 73 

3. Place the cover of the stub axle on top of the 

seal. Slide the king pin through the housing. 

Use the king pin to install the seal. Figure 75. 

For bronze bushings, check that the seal touches 

the bushing. 

For Easy Steer® and plastic bushings, check 

that the top of the seal is even with the stub 


Figure 74 

Figure 75 

4. Turn the stub axle in the vice securing the 

lower part such that the upper part is turned 

toward you. 

5. Place the seal in the top of the housing. The 

lip of the seal must be turned outward from the 

housing. Figures 73 e 76. 

6. Repeat step 3 of this procedure. 

STUB AXLE 

HOUSING 

MACHINED 

SURFACE 

COVER 

LIP OF THE SEAL 

BUSHING 

Figure 76 


KING 

PIN

Installation of the stub axle 

NOTE: 

To optimize tire wear on roads with regular 

surfaces, the housings of the right and 

left king pins on the beam are machined for 

slightly different king pin angles. The front 

of the beam must be installed turned to the 

front of the vehicle. Assemble the axle in 

accordance with the identification made in 

the Note on page 37. 

1. Clean the housings on the stub axles and 

beam. 

2. Place the stub axle on the beam. 

3.Install the seal on the axial bearing. On the 

seals that use a cover, install the seal on the 

open end of the bearing. Figure 77. 

On the “flat” seals, install the seal on the closed 

end of the bearing. Figure 77. 

BEARING 

BODY 

TIPO DE SELLADORES 

COVER 

BEARING 

CAGE 


FLAT 

BEARING 

BODY 

SEAL 

Figure 77 

Installation 

Whole axial bearing with seal 

The single part bearing with integrated grease 

seal is completely interchangeable with the two 

part axial bearing. It has specification for top 

and bottom. 

• The surface with inner diameter of the seal 

must remain on top. 

• The surface with outer diameter of the seal 

must remain at the bottom. Figure 78. 

BOTTOM 

TOP 

Figure 78 

4. Slide the bearing and seal set between the 

bottom of the beam and the stub axle. Check 

that the seal is turned toward the beam. Figure 

79. 

BEARING AND 

SEAL SET 

Figure 79 

51

Installation 

CAUTION: 

WEAR gLOVES DURINg INSTALLATION 

OF THE SHIMS, bECAUSE ITS EDgES ARE 

SHARP. 

1. Install the shims according to the following 

procedures: 

A. Inspect the shims. Replace the damaged 

shims. 

B. If a new shim pack must be arranged, select 

assembly that results in the least play possible. 

C. Place a crowbar between the boss of the 

steering arm and the beam. Raise the stub 

axle and place the shim pack between the 

top of the beam and the stub axle. Figure 80. 

CROWBAR 

Figure 80 

D. Check that all the housings are aligned. If 

the housings are not aligned, the parts will 

be damaged during installation of the king 

pin. 

E. Remove the crowbar. 

6. Install the king pin according to the following 

procedure. Figure 81. 

A. Apply the specified lubricant on the lower 

half of the king pin. 

B. Install the pin in the top of the stub axle. 

Check that the word “TOP” is turned toward 

you. 

C. Turn the pin until the slots are aligned with 

the holes of the stub axle. 

Figure 81 


TOP 

KING 

PIN

CAUTION: 

DO NOT FORCE THE PIN THROUgH THE 

UPPER bUSHINg bECAUSE THE SHIMS 

MAy bE DAMAgED. 

D. Push the pin through the upper bushing of 

the seal and of the shim pack. 

If there is resistance in installation of the pin, 

check if the parts are aligned. 

WARNINg: 

Wear safety goggles. Do not strike steel 

parts with a steel hammer because fragments 

may come off and injure your eyes. 

E. Push the pin through the lower bushing. 

If necessary, use a bronze hammer to strike the 

pin. Check if the parts are aligned. 

F. Check that the slots in the pin are aligned 

with the holes of the stub axle. 

NOTE: 

Do not install or tighten the key on the stub 

axle before checking play and adjusting it. 


Installation 

NOTE: 

All models except FC- 901, FC- 921, FE- 

970, FF- 971 and FL- 901 use threaded keys. 

Models FC- 901, FC- 921, FE- 970, FF- 971 

and FL- 901 use flat keys. 

7. Install the upper key in the front part of the 

stub axle. Install the lower key in the back 

part of the stub axle. Check that the keys are 

in the slots of the king pin. Figure 82. 

Figure 82 

53

Installation 

8. Check the play of the stub axle in accordance 

with the following procedure: 

A. Strike the boss on the stub axle with a rubber 

hammer to move the parts into position. 

Figure 83. 

B. Turn the stub axle to a straight position. 

C. Fasten a magnetic base with dial indicator on 

the beam. Place the thickness gauge on the 

center of the king pin and clear the indicator. 

Figure 84. 

MAGNETIC 

BASE LOCA- 

TION 

Figure 83 

Figure 84 

D. Use the following procedures to measure the 

clearance. 

• Place a lever between the shaft end and the 

top of the beam. Pry the shaft end up and 

measure the clearance. Figure 80. 

Figure 85 


WARNINg: 

If a hydraulic jack is used to measure the play, 

use two stands to support the axle because 

without them, the axle may cause injury and 

damages. 

• Place a block of wood and a hydraulic jack 

under the lower part of the stub axle. Raise 

the stub axle until the pointer of the dial indicator 

stops moving. Figure 86. 

E. Repeat steps C and D with the axle turned 

totally to the right and to the left. 

F. Play must be from 0.02 - 0.64 mm (0.001 - 

0.025”) in all positions. 

If the stub axle does not have play (zero), remove 

shims from the shim pack. 

Only the axle model MFS-06 (5301), MFS- 07 

(FC 845) and MFS08RA, that do not use shims, 

may have zero play without compromising the 

operation of the assembly. 

If play is greater than 0.635 mm (0.025”), add 

shims to the pack. For axles model MFS-06 

(5301), MFS-07 (FC 845) and MFS08RA, if the 

play is greater than the value indicated, replace 

the components of the system beginning by the 

axial bearing. 

NOTE: 

Assemble the thickest shims up against the 

surface of the stub axle, the midsized shims 

up against the surface of the beam and the 

thin ones between them. In the model FD 

833, if the play is greater than 0.62 mm, add 

shims. 


BLOCK OF 

WOOD 

Installation 

Figure 86 

WARNINg: 


with a steel hammer because fragments may 

come off and wound your eyes. 

CAUTION: 

CHECK THAT THE KEy IS COMPLETELy 

INSTALLED AND THAT THE LOCK NUT 

IS TIgHTENED WITH THE SPECIFIED 

TORqUE. IF THE KEyS ARE NOT COR- 

RECTLy INSTALLED, THE KINg PIN AND 

THE bEAM MAy bE DAMAgED. CHECK 

THE TORqUE OF THE NUT AND POSITION 

OF THE KEy EVERy 20,000 KM. 

Check the torque of the nut and cotter positioning 

every 20,000 Km 

NOTE: 

All the models except for FE- 970, FF- 971 

and FL- 901 use threaded keys. Models FE- 

970, FF- 971 and FL- 901 use flat keys. 

9.Install the keys in accordance with the following 

procedure: 

55

Installation 

Flat Keys 

Use a bronze hammer and punch to install the 

key in the axle beam. 

Check that the key is installed with a depth from 

1 to 3 mm (1/32 to 1/8) below the outside surface 

of the beam. 

Figure 87 

Threaded Keys 

On threaded keys, install the lock nut and tighten 

with a torque of 30 - 45 ft-lbf (41 - 54 N.m). 

Figure 88. 

Figure 88 

THREADED 

COVER 

COVER 

GASKET 

Figure 89 

Install the new gaskets and cover on the upper 

and lower part of the stub axle. Install the bolts 

and nuts tightening them with a torque of 20 – 

30 ft-lbf (28 - 40 N.m). 

For the axles model MFS-06 (5301) and MFS- 

07 (FC 845), the torque is from 38 to 57 ft-lbf 

(4.5 to 6.5 N.m) 

If the cover is threaded, install them in the upper 

and lower parts of the stub axle and tighten 

with a torque of 60 - 90 ft-lbf (80 to 120 N.m). 

11. Connect the connecting arm to the stub 

axle. See the procedure in this section. 

12. Install the brake assembly on the stub axle. 

See the vehicle manufacturer procedure. 

13. Lubricate the wheel bearings. See the procedure 

in the Lubrication section. 

14. Install the drum and the tire and wheel assembly. 

15. Lubricate the wheel bearings. See the procedure 

in the Lubrication section. 


16. Install the outside wheel bearing on the 

hub. Install the adjustment nut. 

17. Adjust the wheel bearings. See the Adjustment 

section. 

18. Install the cover and the gasket on the hub. 

Install the bolts and tighten with a torque of: 

American axles 

FD and FF Axles 

(Brazil) 

MFS-06 (5301) and 

MFS-07 (FC 845) Axles 

(Brazil-threaded cover) 

19. Lower the vehicle to the ground. Check is it 

is operating normally. 

20. Check and adjust the camber. See the Adjustments 

section. 

Installation of the connecting arms, pivots 

of the connecting arms and tie bar 

NOTE: 

If a new connecting arm is installed (such 

as to increase the maximum turning angle), 

the steering geometry is changed and may 

cause tire wear. Check the ArvinMeritor 

Technical Service Aid Manual, TSA- 87121 

to choose the correct connecting arm. Contact 

your ArvinMeritor service representative. 


Torque 

20 a 30 ft-lbf 

27 a 41 N.m 


17 a 23 N.m 


60 a 75 N.m 

Installation 

1. Prensa la chaveta en la ranura del brazo. 

Figure 90. 

2. Instale el brazo de unión en la punta de eje. 

CONNECTING 

ARM 

PIVOT 

Figure 90 

CAUTION: 

TIgHTEN THE NUTS WITH THE SPECIFIED 

TORqUE. IF THE NUTS ARE NOT TIgHT- 

ENED WITH THE SPECIFIED TORqUE, THE 

PARTS MAy bE DAMAgED. 

3. Install the nut on the connecting arm. 

Tighten with the specified torque. See the 

Torque Table. 

57

Installation 

4. Install the cotter pins. If necessary, tighten 

the nut until the holes are aligned. Do not 

loosen the nut to install the cotter pin. 

NOTE: 

The tie bar has a right thread at one end and 

a left thread at the other. Check that the pivots 

are installed on the bar. 

5. If removed, install the pivots on the tie rod 

in the position marked during removal. Figure 

91. 

If new connecting arms are installed, screw the 

pivots equally on the tie bar to the necessary 

length. 

6. Install the nuts and bolts on the clamps. 

Tighten with the specified torque. 

TIE BAR 

PIVOT 

MARKS 

Figure 91 

7. The rotating type clamp on the tie bar may 

be turned to facilitate installation of the bolt 

and nut. Tighten the nut sufficiently to fasten 

the locking element of the nut with the bolt. 

The clamp and the bar must be free to turn. 

Figure 92. 

Figure 92 

8. Connect the tie bar on the connecting arms. 

9. Install the nuts on the pivots. Tighten with 

the specified torque. See Torque Table. 




11. Check the camber adjustment if necessary. 

See the Adjustment section. 


PIVOT 

NUT AND BOLT 

CLAMP 

TIE BAR

Installation of the steering arm 


1. Press the key in the slot of the arm. 

2. Install the steering arm on the stub axle. 

3. Connect the steering arm to the tie rod. 

CAUTION: 



ENED WITH THE CORRECT TORqUE, THE 


4.Install the nuts. Tighten with the specified 

torque. See Torque Table. 

5.Install the cotter pins. If necessary, tighten the 

nut until the holes are aligned. Do not loosen 

the nut to install the cotter pin. 

6. Lubricate the steering arm. See the Lubrication 

and Maintenance section. 

7. Check if it is operating correctly. 

STEERING 

ARM 


TIE 

BAR 

Installation of the Tie Rod 


1. Connect the tie rod on the steering arm. 

2. Connect the tie rod on the Pitman arm. 

Installation 

CAUTION: 



ENED WITH THE CORRECT TORqUE, THE 


3.Install the nuts. Tighten with the specified 

torque. See Torque Table. 




5. Lubricate the tie rod. See the Lubrication and 

Maintenance section. 

6. See if it is operating correctly. 

PITMAN 

ARM 

TIE 

ROD 

STEERING 

ARM 

Figure 93 Figure 94 

59

Torque specifications 


ILLUSTRATION OF TORQUE OF THE FRONT AXLE 


TORQUE SPECIFICATIONS OF THE FRONT AXLE 

ITEM DESCRIPTION THREAD SIZE 

01 


Nut for fastening the steering 

arm on the tie rod 


SPECIFIED TORqUE 

ft-lbf N.m 

5/8” - 16 60 - 115 82 - 155 

5/8” - 18 60 - 115 82 - 155 

3/4” - 16 90 - 170 123 - 230 

7/8” - 14 160 - 300 217 - 407 

02 Cover bolt stub axle 5/16” - 18 20 - 30 28 - 40 

03 

Fastening bolt of the steering 

arm on the stub axle 

7/8” - 14 250 - 450 339 - 610 

1” - 14 390 - 725 529 - 982 

1-1/8” - 12 550 - 1025 746 - 1389 

1-1/4” - 12 775 - 1450 1051 - 1965 

1-1/2” - 12 1350 - 2525 1831 - 3423 

04 Key nut 7/16” - 20 30 - 45 41 - 61 

05 Adaptor limiter bolt 3/4” - 10 65 - 115 85 - 155 

06 Checknut limiter bolt 1/2” - 13 50 - 75 68 - 101 

07 Checknut limiter bolt 3/4” - 10 65 - 85 88 - 115 

08 

Fastening nut of the connecting 

arm on the terminal of the 

tie bar 

09 Clamp nut of the tie bar 

10 

11 

Fastening nut of the connecting 

arm on the stub axle. 

Cover of the stub axle 

(threaded) 

7/8” - 14 160 - 300 217 - 406 

1” - 14 250 - 450 339 - 610 

1 1/8” - 12 350 - 650 475 - 881 

1 1/4” - 12 500 - 675 678 - 915 

5/8” - 11 40 - 60 55 - 81 

3/4” - 10 155 - 175 211 - 237 

7/8” - 14 250 - 450 339 - 610 

1” - 14 390 - 725 529 - 982 

1 1/8” - 12 550 - 1025 746 - 1389 

1 1/4” - 12 775 - 1450 1050 - 1965 

1 1/2” - 12 1350 - 2525 1831 - 3423 

2” - 20 60 - 90 80 - 120 

12 Lubrication pin 1/4” - 27 10 14 

61

Special tools 

Special tools 

Description 

Tool number 

Kent-Moore 1 

Tool number 

Owatona 2 

King pin remover 4240 4240 

Kit for King pin bush 

Basic kit 

Kit Series FF - e FG - 

Kit serie FL - 

4 

PT 4375-A 

PT 4370-10 

PT 4370-20 

Tool number 

Snap-on 3 

20 TON: 

GC430HYB 

35 TON: 

CG730HY 

NOTE: 

1. Requests for Kent-Moore, 28635 Mound Road, Warren, MN 55060. 

2. Requests for Owatona Tool and Equipment OTC Tools Division, 655 Eisenhower Drive, 

Oeatona, MN 55060. 

3. Find your local Snap-On supplier. 

4. Use the basic kit for own use for the axis model. 



Always use the Technical Manuals from...

Always use original parts 

For more details, see the Spare Parts Catalog 

Customer service 

55 11 3684.6741 

55 11 3684.6867 

Purchase the CD-ROM failure analysis of components of the axis 

traction 

Customer Service 

Av. João Batista, 825 - Osasco - SP - 06097-105 

Tel. (11) 3684-664 - (11) 3684-6867 

AfterMarket (Replace parts) 

R. Ester Rombenso, 403 - Osasco - SP - 06097-120 

Tel. (11) 0800-555530 

www.arvinmeritor.com

MAINTENANCE MANUAL - Meritor

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