TM 10-3930-641-34-1
TRANSMISSION TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. TRANSMISSION SHIFTS SLOWLY
Step 1. Inspect oil level.
Add oil. (See LO 10-3930-641-12.)
Step 2. Inspect oil pump.
a. Check for air leaks on suction side of oil pump. (See TM 10-3930-641-20.)
Repair leaks. (See TM 10-3930-641-20.)
b. Inspect oil pump for worn or damaged parts.
Repair oil pump as necessary. (See page 4-188.)
Step 3. Inspect control linkages for improper adjustment or damaged parts.
Repair or adjust linkages as necessary. (See TM 10-3930-641-20.)
Step 4. Test transmission sequence and pressure control valve. (See page 4-237.)
Repair or adjust as necessary. (See pages 4-237, 4-205.)
10. TRANSMISSION SHIFTS ROUGHLY. (VERY SUDDENLY.)
Step 1. Check adjustment of control linkages.
Adjust. (See TM 10-3930-641-20.)
Step 2. Test pressure setting of relief valve. (See page 4-231.)
Adjust valve using spacers. (See page 4-231.)
Step 3. Inspect spring of load piston in sequence and pressure control valve.
Replace spring. (See page 4-205.)
Step 4. Inspect springs of sequence and pressure control valve.
Replace if worn or damaged. (See page 4-205.)
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