TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - Page 44 of 352
TM 9-2350-311-34-1
3-2 QUICK GUIDE TO TROUBLESHOOTING —
CONTINUED
ITEM
PROBLEM
COOLING SYSTEM
ENGINE OVERHEATS
ENGINE COOLING FANS DO
NOT OPERATE WHEN ENGINE
IS RUNNING
COOLING FAN DRIVE
ASSEMBLY DOES NOT MEET
BACKLASH REQUIREMENT
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS
INOPERATIVE
ELECTRICAL COMPONENTS
INOPERATIVE, DEFECTIVE
GENERATOR
ELECTRICAL COMPONENTS
INOPERATIVE, DEFECTIVE
MASTER RELAY
ELECTRICAL COMPONENTS
INOPERATIVE, DEFECTIVE
RECTIFIER
EXCESSIVE OIL LEAKAGE
AROUND FINAL DRIVE
FINAL DRIVE
ASSEMBLY
SOLUTION OR REFERENCE
Para 3-3d
Check for broken, damaged, or defective
fan driveshafts (para 6-4).
Adjust backlash as required (para 6-2).
Recharge or replace batteries (TM 9-6140-
200-14).
Rebuild alternator as required (TM 9-2920-
225-34 or TM 9-2920-258-30&P).
Test relay unit for proper operation (TM
9-
4910-571-1 2&P).
Para 3-3g
Para 8-1
3-4
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