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

  TM-9-2350-311-20-1 - Page 106 of 1275

TM 9-2350-311 -20-1
3-2 QUICK GUIDE TO TROUBLESHOOTING — CONTINUED
ITEM
SYMPTOM
PRIMARY
ALTERNATE
TRACKS AND
VEHICLE PULLS TO ONE SIDE WITH
Para 3-3g(2)
None
SUSPENSION —
STEERING WHEEL IN CENTER
CONTINUED
POSITION
FINAL DRIVE
ASSEMBLY
FLAME HEATER
(ENGINE MODEL
7083-7396)
GLOW PLUGS
(ENGINE MODEL
7083-7391)
ENGINE
MASTER
WARNING LIGHT
(STEERING
SHAFT)
ENGINE
WARNING
LIGHT
(PORTABLE
INSTRUMENT
PANEL)
VEHICLE THROWS TRACK(S)
VEHICLE SAGS TO ONE SIDE
Para 3-3g(3)
Check for correct
installation of torsion
bars (para 10-13)
VEHICLE RIDE IS ROUGH OR
Para 3-3g(4)
SUSPENSION SYSTEM IS NOISY
DURING OPERATION
EXCESSIVE OIL LEAKAGE AROUND
Inspect final drive
FINAL DRIVE
assembly (para 10-22)
FLAME HEATER DOES NOT OPERATE
Para 3-3h
GLOW PLUG WAIT LIGHT FAILS
Para 3-3i(1)
TO OPERATE; GLOW PLUG SYSTEM
OPERATES USING MANUAL OVERRIDE
GLOW PLUG SYSTEM FAILS TO OPERATE Para 3-3i(2)
AT LOW AMBlENT TEMPERATURE; GLOW
PLUG WAIT LIGHT OPERATES
MASTER WARNING LIGHT (STEERING
SHAFT) FAILS TO OPERATE; OTHER
MASTER WARNING LIGHT(S)
OPERATE PROPERLY
MASTER WARNING LIGHT (STEERING
SHAFT) FAILS TO OPERATE DURING
PRESS-TO-TEST; OTHER MASTER
WARNING LIGHTS OPERATE PROPERLY
MASTER WARNING LIGHT FAILS TO
OPERATE WITH MASTER SWITCH
ON AND ENGINE OFF
MASTER WARNING LIGHT IS LIT;
EVERYTHING ELSE APPEARS
NORMAL
Para 3-3j(1)
Para 3-3j(2)
Para 3-3k(1)
Para 3-3k(2)
None
None
None
None
None
None
None
None
None
None
None
3-6


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