TM 9-2320-269-10
EXPLANATION OF COLUMNS
This paragraph will explain the troubleshooting headings.
MALFUNCTION
Visual or operational indication that something is wrong with the M876 truck.
TESTS/INSPECTIONS
Procedure to isolate the problem with a component, or a system.
CORRECTIVE ACTION
Procedure to correct the problem.
SYMPTOM INDEX
This information is provided as a guide to help you to identify your problem. Pick out the symptom that comes closest to
the condition of your truck or operation. When the symptom (malfunction) is located, use the page number Indicated to
get you to the troubleshooting procedure.
Malfunction
Troubleshooting
Procedure Page
AIR BRAKES - TRAILER
Brakes release too slowly......................................................................................................
Dragging brakes ....................................................................................................................
Noisy brakes..........................................................................................................................
Parking brake does not hold..................................................................................................
Service brakes will not release - truck
and trailer towing ................................................................................................................
Slow brake application, or slow release - truck
and trailer towing ................................................................................................................
Uneven braking .....................................................................................................................
AIR SYSTEM AND BRAKES
Air pressure loss during operation - pressure
warning light and buzzer come on......................................................................................
Insufficient braking ................................................................................................................
Low air pressure - warning light and buzzer are on...............................................................
Quick loss of air pressure when engine stops .......................................................................
Slow air pressure build-up .....................................................................................................
ANTI-LOCK BRAKE SYSTEM
Cycling of anti-lock system, or air control valves...................................................................
Delayed monitor light - truck not moving ...............................................................................
Monitor light comes on at speeds above 15 mph..................................................................
Monitor light stays on.............................................................................................................
No monitor light - key switch turned to on .............................................................................
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