TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 64 of 1176
TM 9-2320-361-24-1
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0003 00-2
THEORY OF OPERATION (Contd)
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POWERTRAIN
Power Train System Operation:
The powertrain components are the same on all models with
exception of turbocharged and non-turbocharged engines and an additional propeller shaft and center
bearing on the M36A2. The major powertrain components of the M44A2 series are as follows:
FRONT AXLE
– Transmits power from front differential to front wheels.
TRANSMISSION
– Transfers engine power to meet different speeds and power requirements.
TRANSFER CASE TO FRONT DIFFERENTIAL PROPELLER SHAFT
–
T
ransmits power from the
transfer case to the front differential.
TRANSFER CASE
– Distributes power to front and rear axles.
UNIVERSAL JOINTS
– Permit power to be transmitted at slight angles between transmission and
transfer case and between transfer case and differentials.
TRANSFER CASE TO FORWARD-REAR AXLE PROPELLER SHAFT
–
T
ransmits power from the
transfer case to the forward-rear differential.
FORWARD-REAR AXLE
– Transmits power from forward rear differential to forward-rear wheels.
FORWARD-REAR AXLE TO REAR-REAR AXLE PROPELLER SHAFT
–
T
ransmits power from the
forward-rear axle to the rear-rear axle.
REAR-REAR AXLE
– Transmits power from rear-rear differential to rear-rear wheels.
TRANSMISSION TO TRANSFER CASE PROPELLER SHAFT
–
T
ransmits power from the
transmission to the transfer case.
ENGINE
–
T
ransmits power from the transmission to the transfer case.
K
J
I
H
G
F
E
D
C
B
A
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