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TM 5-4210-220-34
Table 3-1. GENERAL SUPPORT TROUBLESHOOTING
MALFUNCTION
TEST AND INSPECTION
CORRECTIVE ACTION
1a
TRANSMISSION SHIFTS ROUGHLY
Step 1.
Check control valves for sticking.
Replace or rebuild control valve assembly.
Step 2.
Check modulator valve for sticking.
Repair or replace valve.
1b
TRANSMISSION HAS HIGH STALL SPEED
Step 1.
Check clutch pressure.
Replace or rebuild valve body assembly or replace piston seal for specific clutch.
Step 2.
Check if clutch slipping.
Rebuild forward, first, fourth and low clutches.
1c
TRANSMISSION HAS LOW STALL SPEED
Check torque converter.
Replace/rebuild torque converter.
1d
AUTOMATIC SHIFTS OCCUR AT TOO HIGH SPEED
Step 1.
Check governor valve for sticking.
Clean or replace governor valve if stuck.
Step 2.
Check if shift points properly adjusted.
Adjust shift points.
Step 3.
Check if shift signal valve spring adjustment is too tight.
Backoff spring adjusting ring.
Step 4.
Check if control valves are sticking.
Overhaul valve body assembly.
3-3
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