TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 472 of 1275
TM 9-2350-311 -20-1
4-5 POWERPLANT
This task covers:
a. Removal
b. Inspection
c. Special Equipment Hookup
d. Test Run
e. Special Equipment Removal
f. Installation
T
OO
I
S
General mechanic’s tool kit (item 64, Appx H)
Adapters (2) (item 4, Appx H)
Box wrench (item 67, Appx H)
Ground cable (M109A2/M109A3) (item 7, Appx H)
Hose assemblies (2) (item 30, Appx H)
Lifting sling (item 59, Appx H)
Power cable (rectifier-to-alternator) (M109A2/M109A3)
(item 8, Appx H)
Power cable (rectifier-to-alternator) (M109A4/M109A5)
(item 9, Appx H)
Power cable (starter and master warning circuit) (item 11,
Appx H)
Power cable (starter circuit) (M109A4/M109A5) (item
10, Appx H)
Protective fan screens (2) (item 53, Appx H)
Quick disconnects (2) (item 14, Appx H)
Safety screen (item 54, Appx H)
Socket wrench set (item 56, Appx H)
Starter electrical lead (M109A2/M109A3) (item 34,
Appx H)
Torque multiplier (item 37, Appx H)
Torque wrench (item 71, Appx H)
Torque wrench (item 72, Appx H)
Antiseize compound (item 9, Appx D)
Cotter pins (2) (item 38, Appx G)
Cotter pins (2) (item 40, Appx G)
LockWashers (2) (item 74, Appx G)
LockWashers (2) (item 88, Appx G)
LockWashers (12) (item 89, Appx G)
LockWashers (3) (item 90, Appx G)
LockWashers (2) (item 91, Appx G)
LockWashers (3) (item 96, Appx G)
LockWashers (2) (item 100, Appx G)
LockWires (2) (item 25, Appx G)
Packing (item 151, Appx G)
Wood blocks (item 3, Appx E)
Personnel Required
Three
References
TM 9-2350-311-10
TM 9-4910-571-1 2&P
Equipment Conditions
Battery ground straps disconnected (para 8-28)
Gun tube traversed to right angles with hull
(TM 9-2350-311 -10)
Howitzer moved to level surface (TM 9-2350-311-10)
Howitzer secured, tracks blocked (TM 9-2350 -311-10)
MASTER switch OFF (TM 9-2350-311-10)
Parking brake released (TM 9-2350-311-10)
Steering wheel moved to right (TM 9-2350-311-10)
Throttle moved to idle position (TM 9-2350-311-10)
Transmission placed in R2 (TM 9-2350-311-10)
4-10
Materials/Parts
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