TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
Table 3-1. (ARMY) Troubleshooting (Trailer) - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
SYSTEM INOPERATIVE. (Continued)
Step 3.
Check the air system of the towing vehicle for leaks or lack of pressure.
Notify organizational maintenance.
2.
BRAKES REMAIN LOCKED.
Step 1.
Check for cause of the lack of air pressure.
Notify organizational maintenance.
Step 2.
Check the operation of the emergency/relay valve.
Notify organizational maintenance.
Step 3.
Check to see if the compression springs have locked the brakes (wheels will not turn if springs have
locked).
Locate and correct the cause of the loss of air pressure; then refer to figure 2-77 in this manual for
instructions for resetting a locked spring brake.
3.
BRAKES ON ONE SID)E ENGAGE BEFORE THOSE ON THE OTHER SIDE.
Step 1.
Check the movement of the slack adjusters to see if they are out of adjustment.
Notify organizational maintenance.
Step 2.
Check the brake camshaft movement to see if there is any restriction on movement.
Notify organizational maintenance.
4.
BRAKES SLIP.
Step 1.
Check brake adjustment, and inspect for defective brake assembly parts.
Notify organizational maintenance to adjust brakes or replace defective parts.
3-4