TM 10-3930-641-34-1
TRANSMISSION TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. TRANSMISSION ENGAGES, BUT ENGINE STALLS AND VEHICLE DOESN'T MOVE (CONT)
The following chart shows the clutch combinations for each speed.
TRANSMISSION
SPEED
IN TRANSMISSION
Fourth Speed Forward
2 and 3
Third Speed Forward
2 and 4
Second Speed Forward
2 and 5
First Speed Forward
2 and 6
Neutral
3
First Speed Reverse
1 and 6
Second Speed Reverse
1 and 5
Third Speed Reverse
1 and 4
Fourth Speed Reverse
1 and 3
Adjust transmission pressure control valve so only the correct combination of clutches engage for each speed selected. (See
page 4-202.)
2. TRANSMISSION SELECTION LEVER DOES NOT STAY IN EITHER DIRECTION WHILE ENGINE IS RUNNING AND PARKING BRAKE IS OFF
Test and inspect transmission control lock. (See page 4-210.)
Adjust or repair as necessary. (See pages 4-217, 4-234.)
3. WARNING ALARM DOES NOT SOUND WHEN TRANSMISSION SELECTION LEVER IS MOVED FROM NEUTRAL WHILE ENGINE IS RUNNING AND
PARKING BRAKE IS ON
Step 1. Inspect direction control linkage for defects or incorrect adjustment. (See TM 10-3930-641-20.)
Adjust linkage and replace defective parts. (See TM 10-3930-641-20.)
Step 2. Test warning switch.
Replace warning switch. (See TM 10-3930-641-20.)
Step 3. Test back-up alarm warning alarm.
Replace warning alarm. (See TM 10-3930-641-20.)
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