MAINTENANCE MANUAL - Meritor

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14. Use a press and a sleeve to press the shaft of the drive pinion out of the outer bearing cone. Do not press the shaft of the drive pinion out of the helical driven gear. 15. Remove the outer bearing cone and the two pieces of lead or solder from the outer bearing cone. 16. Use a micrometer to measure the thicknesses of the compressed pieces of lead or solder. Add the measurements of the two pieces and divide by two (2) to determine the average size of the pieces. Add 0.004inch (0.100 mm) to the average size. Use this dimension to determine the size of the spacer to install between the helical driven gear and the outer bearing. See Table G. TABLE G 17. Place a wood block under the head of the drive pinion so that the inner bearing cone on the pinion touches the inner bearing cap in the differential case. Remove the supports from the differential case. Figure 5.15. ROTATE IN THESE DIRECTIONS AS CONE IS PRESSED ON PINION MAINTENANCE MANUAL Example (mm) Pol. Thickness of piece number 1 (12.800) 0,504 Thickness of piece number 2 (12.852) +0,506 Total thickness (25.826) 1,010 Divide by two (2) to determine the average thickness Add 0.004-inch (0.100 mm) to determine the thickness of the spacer CONO DEL RODAMIENTO EXTERNO SPACER HELICAL DRIVEN GEAR SPACER (12.826) 0,505 (12.9260) 0,509 PRESS - DO NOT APLLY MORE THAN TWO TONS (1814Kg) OF PRESSURE SLEEVE WOOD BLOCK - MUST SUPPORT HEAD OF DRIVE PINON Figure 5.15 CAUTION Assembly and Installation DO NOT APPLY PRESSURE AFTER THE HELICAL DRIVEN GEAR TOUCHES THE SPACER IN FRONT OF THE INNER BEAR- ING ON THE DRIVE PINION. IF PRESSURE IS APPLIED AFTER THE PARTS TOUCH EACH OTHER, THE GEAR WILL DAMAGE THE SPACER. NOTE: The inner bearing cone on the drive pinion must touch the inner bearing cap in the differential case, when the helical driven gear is being installed. 18. Use a press and a sleeve to completely install the helical driven gear on the drive pinion. Use a sleeve on the hub of the gear that fits inside the pinion bore. Press the gear in the drive pinion until the gear touches the spacer. Do not remove the wood block at this time. Figure 5.14 19. Install the correct size spacer the shaft of the pinion in front of the helical driven gear. NOTE: Verify that the wood block is still under the head of the drive pinion. The inner bearing cone on the pinion must touch the cap in the differential case. 20. Install the outer bearing cone into the shaft of the drive pinion. Figure 5.15. A. Place the outer bearing cone on the shaft of the drive pinion. B. Place a sleeve in the top, inner race, of the outer bearing cone. C. Use a press to apply 2 tons (1814 kg) of force on the bearing cone to install the cone into the shaft of the drive pinion. Rotate the differential case in both directions, while the cone is being installed to verify that the bearing cone is correctly installed. 21. Release the pressure and remove the differential case from the press. Place the differential case in a repair stand. 47
Assembly and Installation 22. Install the washer and the nut the drive pinion. Prevent the drive pinion assembly from rotating by using of device or tool to hold the teeth of the helical driven gear or place wood blocks between the head of the pinion and the differential case wall. Tighten the nut to the specified torque. See Section 8. Remove the holding tool or the wood blocks. 23. Use an inch-pound torque wrench or a spring scale to inspect the preload of the bearings on the drive pinion. Torque Wrench Method 1. Place an inch-pound (N.m) torque wrench and the correct socket in the drive pinion nut. Figure 5.16. REAR SIDE GEAR BEARING CUP CARRIER INPUT BORE Figure 5.16 2. Use the torque wrench to rotate the drive pinion assembly. Inspect and record the torque level. Read while rotating the assembly. Record the dynamic or rotating torque not the starting torque. 3. The preload of the drive pinion bearings must be within the following limits. • For new pinion bearings: 5-45 lb-in (0.56- 5.08 N.m) rotational torque . • For used pinion bearings: 10-30 lb-in (1.13- 3.39 N.m ) rotational torque . • If the preload is not within the specified limits, remove and replace the spacer between the outer bearing cone and the helical driven gear. See the procedure below: • To decrease the preload, install a thicker spacer. • To increase the preload, install a thinner spacer. Dinamometry Scale Method 1. Wind a cord around the washer under the nut of the drive pinion 2. Attach a dinamometry scale to the end of the cord 3. Pull the dynamometry scale and cord in a horizontal direction while looking at the reading on the spring scale. Figure 5.17. Read rotating torque a dinamometry Figure 5.17 48 MAINTENANCE MANUAL
Page 1 and 2: MT 46-145 MT 50-168 MAINTENANCE MAN
Page 4 and 5: Notes About This Manual This manual
Page 6 and 7: Single Reduction Forward Differenti
Page 8 and 9: RIGHT. SIDE CURRENT DCDL NO SPIN®
Page 10 and 11: • When the collar splines engage
Page 12 and 13: Hazard Alert Messages Read and obse
Page 14 and 15: 5. Install a cover over the open en
Page 16 and 17: CAUTION WHEN USING A PRY BAR, BE CA
Page 18 and 19: 3. Press the output shaft through t
Page 20 and 21: A. Lift the input shaft assembly un
Page 22 and 23: 3. Remove the snap ring that fasten
Page 24 and 25: Removal Inter-Axle Differential Loc
Page 26 and 27: 7. Use an appropriate lifting devic
Page 28 and 29: 2. Remove the drive pinion from the
Page 30 and 31: Clean Ground and Polished Parts 1.
Page 32 and 33: CAUTION A THRUST WASHER, DIFFERENTI
Page 34 and 35: 9. For complete welding instruction
Page 36 and 37: CAUTION APPLY SILICONE GASkET MATER
Page 38 and 39: Hypoid Gear Set Ratios Listed on th
Page 40 and 41: • If the axle ratios shown on the
Page 42 and 43: Hazard Alert Messages Read and obse
Page 44 and 45: The preload of the bearings on the
Page 46 and 47: SPACER- AVAILABLE IN DIFERENT SIZES
Page 50 and 51: 4. Measure the outer diameter of th
Page 52 and 53: 9. Apply axle oil lubricant on the
Page 54 and 55: Installation Case Halves and Ring G
Page 56 and 57: Adjustment Main Differential Case B
Page 58 and 59: 5.If the difference is at or within
Page 60 and 61: PART NUMBER Examples The following
Page 62 and 63: 5. Change the thickness of the shim
Page 64 and 65: 5.Tighten the jam nut, if equipped,
Page 66 and 67: A. Apply axle lubricant to the inne
Page 68 and 69: E. Install the input bearing cage o
Page 70 and 71: NOTE: The shim pack under the input
Page 72 and 73: 9. Inspect the clearance operation
Page 74 and 75: Inspection Adjust of the clearance
Page 76 and 77: 6. Position the installation tool a
Page 78 and 79: Tight Fit Forks and POSE Seal . 1.
Page 80 and 81: CAUTION USE A PRESS AND A SLEEVE OR
Page 82 and 83: 14. Adjust the shift fork for the i
Page 84 and 85: 5. If the axle shaft flange have cy
Page 86 and 87: Fill the Axle with Lubricant NOTE:
Page 88 and 89: Engagement or Lockout of the DCDL W
Page 90 and 91: Differential and Gear Assembly and
Page 92 and 93: NOTE: Some models use silastic seal
Page 94 and 95: 10. Engage the splines of the colla
Page 96 and 97: VERSIÓN FIJADA POR TORNILLOS SHIFT
Page 98 and 99:
5. Install the differential into th
Page 100 and 101:
MAINTENANCE MANUAL Lubrification Sp
Page 102 and 103:
Torque Specifications MAINTENANCE M
Page 104 and 105:
Tabela Q: General Torques Specifica
Page 106 and 107:
Table U: Drive Pinion Bearings —
Page 108 and 109:
Specifcations Mounting Bracket to D
Page 110 and 111:
Table AE: Unitized Pinion Seals and
Page 112 and 113:
7. Release conical washers, if used
Page 114 and 115:
8. Unlock or disengage the DCDL by
Page 116 and 117:
14. Lock or engaged the main differ
Page 118 and 119:
PARAFUSO CONICAL WASHER RETENTION S
Page 120:
Always use original parts For more
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MAINTENANCE MANUAL - Meritor

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