TM 9-2320-211-20
Schwitzer Corp. 4LE-354.
Models M40A2C, M51A2, M 5 2 A 2 ,
Make . . . . . . . . . . . .
4-456 and 4D554 (Mack
M 5 4 A 2 , M54A2C, M55A2, M61A2,
Model
ENDT-6731.
M 6 3 A 2 , M63A2C, M139A2F,
M 2 4 6 A 2 , M291A2, M291A2C,
Oil-cooled, exhaust-driven,
Type
blower compressor.
M291A2D, M328A2, M543A2,
and M748A2:
(3) C o o l i n g
system.
Make . . . . . . . . . . . . . . . 11640319
Type . . . . . . . . . . . Fin and tube
Thermostat:
Pressure cap . . . . . . . . . . . . 7 psi
Models M40A1, M40A1C,
M5lA1, M52A1, M54A1,
M54A1C, M55A1, M61A1,
Model . . . . . . . . . . . . . . 1117495
M63A1, M63A1C, M139A1,
Voltage (rated) . . . . . . . . . . . 24 volts
M139AlF, M246A1,
Generator regulator:
M29lA1, M291A1C,
M291A1D, M328A1,
Model . . . . . . . . . . . . . . . . . 1118606
M543Al and M748A1:
Type . . . . . . . . . . . Vibrating
Starts
to
open
170
F.
voltage (rated) . . . . . . . . . . 24 volts
Fully
opened
200
F.
Ground
p o l a r i t y Negative
Models M40A2C, M51A2, M52A2,
Voltage regulator:
M54A2, M54A2C, M55A2, M61A2,
M63A2, M63A2C, M139A2F,
Operating range (hot) 27-29 volts at 120 F.
M246A2, M291A2, M291A2C,
Starter:
M291A2D, M328A2, M543A2, and
Make
Delco-Remy
M748A2:
Voltage . . . . . . . . . . . . . . . . . . 24 volts
Opens at . . . . . . . . . . . . . . . l80 F.
(5) T r a n s m i s s i o n .
Water pump:
Manufacturer
Spicer
Models M40A1, M40A1C, M51A1,
Models M40A1, M40A1C, M51A1,
M52A1, M54A1, M54A1C, M55A1,
M52A1, M54A1, M54A1C, M55A1,
M61A1, M63A1, M63A1C, M139A1,
M61A1, M63A1, M63AlC, M139A1,
M139A1F, M246A1, M291A1,
M291A1C, M291A1D, M328A1,
M139A1F, M246A1, M291A1,
M291A1C, M291A1D, M328A1,
M543A1 and M748A1:
M543A1 and M748A1 6453
Make . . . . . . . . . . . . . . . . . Mack
All
other
models
6352
Model . . . . . . . . . . 316 GCA-1108B
Type . . . . . . . . . . . . . . . . . . . Synchromesh
Type . . . . . . . . Centrifugal impeller
Speeds forward
..5
Models M39, M40, M40C, M41,
Speeds reverse . . . . . . . . . . . . . . 1
M51, M52, M54, M55, M61, M62,
Gear ratios:
M63, M63C, M139, M139C, M139D,
M139F, M246, and M543:
Models M40A1, M40A1C, M51A1,
Type . . . . . . . . . . . . Centrifugal impeller
M52A1, M54A1, M54A1C,
Models M40A2C, M51A2, M52A2,
M55A1, M61A1, M63A1, M6341C,
M54A2, M54A2C, M55A2, M61A2,
M139A1, M139A1F, M246A1,
M63A2, M63A2C, M139A2F,
M291A1, M291A1C, M291A1D,
M246A2, M291A2, M291A2C,
M328A1, M543A1 and M748A1:
M291A2D, M328A2, M543A2, and
lst . . . . . . . . . . . . . . . . . . . . 6.07
M748A2:
2nd . . . . . . . . . . . . . . . . . . . . 3.40
Model . . . . . . . . . . . 10889962
3rd . . . . . . . . . . . . . . . . . . . . 1.79
Type J. . . . . . . . . . . . . . . . Centrifugal impeller
4th . . . . . . . . . . . . . . . . . . . . 1.00
5th . . . . . . . . . . . . . . . . . . . . . . . .78
Radiator:
Reverse . . . . . . . . . . . . . . . . 6.09
All other models:
Models M40A1, M40A1C, M51A1,
lst . . . . . . . . . . . . . . . . . . . . . . . . .7.3 l
M52A1, M54A1, M54A1C, M55A1,
2nd . . . . . . . . . . . . . . . . . . . . . 4.08
M61A1, M63A1, M63A1C, M139A1,
3rd . . . . . . . . . . . . . . . . . . . . . 2.4l
M139A1F, M246A1, M291A1,
4th . . . . . . . . . . . . . . . . . . 1.43
M291A1C, M291A1D, M328A1,
5th . . . . . . . . . . . . . . . . . . . . . 1.00
M543A1 and M748A1:
Reverse . . . . . . . . . . . . . 7.33
Pressure cap . . . . . . . . . . . . . 7 psi
Models M39, M40, M40C, M41, M51,
(6) Transfer case.
M52, M54, M55, M61, M62, M63,
M63C, M139, M139C, M139D,
Manufacturer
.
.
Rockwell
Standard
M139F, M246, and M543:
Model . . . . . . . . . . . . . . . . T-1.38
Make . . . . . . . . . . . . . . . . . . . Modine
Ratios:
Type . . . . . . . . . . . . . . . . . . . Fin and tube
Rear output shaft:
Pressure cap . . . . . . . . . . . . . 4 psi
Low range . . . . . . . . . . . 2.024: 1.00
High range . . . . . . . 1.00: 1.00
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