TM 5-3805-261-34
BRAKES TROUBLESHOOTING AND MAINTENANCE PROCEDURES.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
j.
SERVICE BRAKES NOT ENGAGING CORRECTLY.
Step 3.
Check adjustment of screw on plunger of control valve to ensure enough travel of piston in air
brake valve is permitted.
If too little travel is permitted--adjust screw. Refer to paragraph 6-12.
Step 4.
Check for wear or damage to air brake valve.
If air brake valve is worn or damaged--repair. Refer to paragraph 6-12. Replace service brakes after
completing all of the above, if necessary. Refer to paragraph 6-7.
k.
SERVICE BRAKES NOT RELEASING CORRECTLY.
Step 1.
Check adjustment of screw on plunger of control valve to ensure that screw does not stop piston
from completely releasing from control valve.
If screw stops piston from releasing--adjust screw. Refer to paragraph 6-12.
Step 2.
Check for wear or damage to parking brake air control valve.
If control valve is worn or damaged--repair. Refer to paragraph 6-5.
6-9
