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TM 5-4210-220-34
Table 3-1 GENERAL SUPPORT TROUBLESHOOTING - Continued
MALFUNCTION
TEST AND IN.SPECTION
CORRECTIVE ACTION
1h
TRUCK OPERATES SLUGGISHLY WITH HIGH ENGINE REVS
Step 1.
Check oil level in transmission.
Add oil as required.
Step 2.
Check if one or more clutches are slipping.
Overhaul transmission.
1j
CLUTCH SLIPPAGE IN ALL GEARS.
Step 1.
Check clutch if (main) pressure low.
Refer to If preceding.
Step 2.
Check if forward clutch slipping.
Rebuild forward clutch and replace piston seal rings.
Step 3.
Check if seal rings on front support hub worn or broken.
Replace seal rings.
1k
CLUTCH SLIPPAGE IN ALL FORWARD GEARS, BUT NO SLIPPAGE IN REVERSE.
Check if forward clutch slipping.
Rebuild clutch and replace piston seal rings.
1l
CLUTCH SLIPPAGE IN FIFTH AND REVERSE GEARS ONLY.
Check if fourth clutch slipping.
Rebuild clutch and replace piston seal rings.
1m
CLUTCH SLIPPAGE IN FOURTH GEAR ONLY.
Check if third clutch slipping.
Rebuild clutch and replace piston seal rings.
1n
CLUTCH SLIPPAGE IN THIRD GEAR ONLY.
Check if second clutch slipping.
Rebuild clutch and replace piston seal rings.
3-5
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