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Page Title:
Table 9. Service Brake System Troubleshooting Procedures - Continued. |
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 TM 9-2320-312-24-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 9. Service Brake System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Reconnect air lines as required.
5. Trailer Brakes Will Not Apply/Release.
1. Check if intervehicular air
lines are properly connected
between tractor and trailer
(TM 9-2320-312-10).
2. Check if trailer air lines are
Refer to trailer technical manual
leaking.
to replace leaking air lines.
a. If slack adjusters, S-cams
6. Uneven or Erratic Front Brakes.
1. Inspect slack adjusters, S-
or shafts are damaged,
cams, and shafts for damage
replace
(Group
090
and proper adjustment.
Commercial
Service
Manuals).
b. Adjust brakes (Group 090
Commercial
Service
Manuals).
2. Check for even brakedrum-
Adjust brakes (Group 080
to-lining clearance.
Commercial Service Manuals).
Replace worn or damaged
3. Remove front brakedrums
and inspect brakeshoes and
components
(Group
080
brake
components
for
Commercial Service Manuals).
excessive
wear
and/or
damage.
a. If slack adjusters, S-cams
7. Uneven or Erratic Rear Brakes.
1. Inspect slack adjusters, S-
or shafts are damaged,
cams, and shafts for damage
replace
(Group
090
and proper adjustment.
Commercial
Service
Manuals).
b. Adjust brakes (Group 090
Commercial
Service
Manuals).
2. Check for even brakedrum-
Adjust brakes (Group 090
to-lining clearance.
Commercial Service Manuals).
Replace worn or damaged
3. Remove rear brakedrums and
inspect brakeshoes and brake
components
(Group
090
components for excessive
Commercial Service Manuals).
wear and/or damage.
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