TM 5-3805-261-20
BRAKE TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
g.
DIFFERENTIAL LOCK NOT ENGAGING CORRECTLY.
Step 1. Check the control valve.
If the control valve is worn, damaged or defective--contact Direct Support.
Step 2. Check the differential lock valve.
If the lock valve is worn, damaged or defective--contact Direct Support.
Step 3. Check the differential lock.
If the lock is damaged or defective--contact Direct Support.
Step 4. Check Number Six clutch oil passage to differential lock control.
If the oil passage is restricted or damaged--contact Direct Support.
9-6