FM 21-6 - Us-militaria.com

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HUPBER DATE, TITLE AND’ CHANGlS ’
B-UMBER DATE, TITLE AND CHANGEE
TB
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tion, Classification, Reconditioning and Disposition
,-+rl ’ ;” Tracks-&d Bog&’ Wheels.
ORD 131 2 Aug. 44. Tank, Medium,‘M4A3, Carriage, Mo
,I . . ‘tar, 3-Inch’ Gun; MlOAl: Engine Oil Pan Level
Sending Unit, and Oil Level Instrument Panel Gage,
ORD 153 1 Jan. 43. Engines, radial, booster coils; Inspec- :
tion.
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.ORD 154 13 May 43. Tanks, Medium M4 Series, Carriage, t
Motor 105mm Howitzer. M7: Carriaze. . * Motor. 155- :
mm Gun, M12; Carrier; Cargo, T14, Transmission :
Pinion Gear Shim Replacement. l :
; . ORD.132 3 Aug. 44. Telescope M51, M52, M56, M57, M59
. -M66, M70 Series,- M71 Series, M72 Series, M76C
. (T106), and T93. ,
ORD 133 3 Aug. 44. Tank, Medium, M4 and Speci,al Pur-
I 1 : pose Full-Track .Vehicles with Medium: Tank M4
_ - Type Power -Train; Instructions for Shimming
_. ir’ r Transmission Pinion Gear Using Shim Checking
Gage 41-G-217-150.
: :ORD 134 3 Aug. 44. Engines, Radial and Inline: Dispositior
of Unserviceable Sodium-Filled Exhaust Valves.
CRD 135 3 Aug. 44. Heavy Carriage Limber M5.
-0RD 136 5 Aug. 44. Lubrication of Eyepiece Movements
of Optical Instruments.
: ORD.137 8 Aug. 44.. 20-mm Aircraft Gun Rounds: TSEE
(M95), T18 (M96), T23 (M97), T24 (M99).
ORD 138 10 Aug. 44. Recoil Mechanisms of Mobile Field
Artillery: Changing from Recoil Oil (Heavy) tc
Recoil Oil (Special).
ORD 139 10 Aug. 44. Air Pressures for Tires on Artillery
Carriages.
: ORD 140 19 March 42. Quadrant, Range, Ml: Ne% Range
Drums.
ORD 141 3 June 42. Gun, Submachine, Caliber .45. Thompson,
M1928Al and Ml: Deletion of Serial Number
from Frame.
ORD 142 14 Aug. 44. Restricted Use of Fuze, P.D., M51
W/Booster M21 Fuse. P.D.. M51Al W/Booster
M21Al.
ORD 143 12 Aug. 44. Carriage, Motor, 3-In. Gun, Ml0
and’ MlOAl, List of Equipment.
ORD 144 3 March 44. Carriage, Motor, 3-in. Gun, Ml0
and MlOAl; Importance of Locking Turret.
ORD 145 15 May 43. Engines, Continental, R-975-Cl:
Magneto Timing Change.
ORD 146 23 May 43. Ordnance Vehicles; Correcting Windshield
defrosted switch short circuit.
ORD 14’7 24 July 43. Ordnance Wheeled Vehicles; Provision
for a Lubricant Passage on Universal Joint
Trunnion Ends.
ORD 148 11 Aug. 43. Carriage, Motor, 3-In. Gun, Ml0
and MlOAl, Carriage, Motor, 105~mm Howitzer, M7;
Carriage, Motor, 155-mm Gun, M12; Vehicles, Tank
Recovery, T2; Tanks, Medium, M4 Series; Carrier,
Cargo, T14, Fuel Tank Filler Neck, Strainer, Seal,
and Vent.
ORD 149 12 July 43. Vehicles, Half-Track, and car, scout
M3Al; Misuse of 5-Gallon liquid containers.
ORD 150 15 June 43. Tank, Medium; Track Adjustment.
ORD 151 22 May 43. Tanks, Medium, M4 Series; Carriage
Motor 3-in. gun, Ml0 and MlOAl; Carriage, Motor,
105-mm Howitzer, M7; Carriage, Motor, 155-mm
Gun, M12, Carrier, Cargo, Tld, Transmission Oil
-, Return Line.
ORD 155 33 Aug. 43. Half-Track Vehicles and Scout Cars; ’
Staking of Hexagon Nuts and Bolts.
ORD 156 1 July 43. Half-Track Vehicles; Removal of i
Engine Speed Restrictor or Governor.
ORD 157 1 Sept. 4.3. All Half-Track Vehicles; Removal
of Idler Adjusting Rod Lock Nut.
ORD 158 22 April 43. Tank, Medium, M4Series: Clutch
Pedal Operation Interference.
ORD 159 17 May 43. Medium Tanks, M4 Series; Trane
mission Clutch. Gears.
ORD 160 29 May 43. Tanks, Medium, M3A3, MIAS, MP -)
A2, Carriage. Motor, 3-171. Gun, MlO; Clutch- Disk
Assemblv. Semi-Metallic Facings to Realace Clutch
Disk Assembly, Woven Asbestoi Facings.
ORD 161 28 May 43. Ordnance Vehicles; Mounting Decontaminating
Apparatus, M2.
ORD 162 10 Dec. 42. Half-Track Vehicles and Car, Scout,
M3Al: Replacement of Gas Tank Drain Plug.
ORD 163 22 June 43. Ordnance Vehicles; Mounting Universal
Rifle Bracket.
,ORD 164 4 June 42. Compasses for Scout Cars M3Al and
All Half-Track Vehicles; Installation and Adjustment.
ORD 165 13 Aug. 43. Tanks, Medium M4,‘ M4A1, M4A4,
Carriage, Motor, 105-mm Howitzer, M7 Carriage,
Motor, 155-mm Gun, Ml2 Carrier, Cargo T14; Field
Method of Working Out the Dust Accumulation In
Clutch.
ORD 166 8 June 44. Half-Track Vehicles; Modification of
Crescent Wrench to Fit Tension Adjusting Nut on
Spring-Loaded Idler Mechanisms.
ORD 167 17 Aug. 44. Truck, 2?/2-ton, 6 x 6, (GMC CCKW-
352-353) ; Truck, 21-ton, 6 x 6 Amphibian {GMC
DUKW-353) : and Truck. 2%-Ton 6 x 4 (GMC CCW-
353) ; Spring’Seat Spacer Washer 22-2834 for Rear
Spring Seat Seal (Lip-Type) Kit.
ORD 168 12 Nov. 43. Half-Track, and Wheeled Vehicles;
Trre Lock Ring Removing Tool.
/
ORD 169 21 Aug. 44. Shell, H.E., 57-mm, T&El with /
Fuze, P. D., T83 or With Fuze, P.D., T86.
ORD 170 18 March 43. Tank, Medium M3 and M4 Series;
Differential Compensating Pinion Mounting Bushings.
ORD 171 24 Aug. 44. Use of Recoil Oil (Special) in the
Recoil Cylinder for Gun, Automatic, 40-mm, Ml
(AA), and Oil Geared Ml (Remote Control Systems
Ml and M5), M2 (Remote Control System M3), and
M3 (Remote Control System M15).
ORD 172 15 June 43. Ordnance Vehicles; Instrument Panel
Voltmeter. ,
ORD 173 30 Aug. 44. Unit Replacement and Repair Time
Guide For Wheeled Vehicles. (
ORD 152 3 July 44. Tati?, Medium, M4 Series; Carriage
Motor, 3-in. Gun, Ml0 and MlOAl; Carriage, Mo-
ORD 174 31 Aug. 44. Units,
brication of Fan.
Generating, M5 and M6: Lu-
__’
tor, 105-mm Howitzer, M7; Carriage Motor, 155-mm
Gun, M12; Carrier, Cargo, T14, Disc Type Track
Idler Wheel.
:
ORD 175 4 Sept. 44. Truck, lo-Ton, 6 x 4, Diesel, Prim.
Mover, (White 1064) ; Truck, PO-Ton 6 x 4, Diesel,
Tractor (Federal 604) ; Cylinder Head Gaskets.
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