TM-9-2330-335-14-P
SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)
SEPTEMBER 2008
TM-9-2330-335-14-P - Page 584 of 640
TM 9-2330-335-14&P
0102-2
0102
EXCESSIVE LEAKAGE, SPRING BRAKES RELEASED BY AIR
000102
1.
Leaking diaphragm or main seal in spring section.
2.
Leaking pushrod seal.
3.
Leaking hoses, tubes, or fittings.
DRAGGING BRAKES
000102
Service Brakes
000102
1.
Broken return spring in service section.
2.
Service application air not exhausting properly or fast enough.
3.
Clogged parts or defective valves.
4.
Restricted or collapsed hose or tubing.
5.
Broken brake shoe return springs.
6.
Camshaft linkage binding.
7.
Auto slack and adjusters over-adjusting.
Spring Brakes
000102
1.
Leaking diaphragm or seal in spring brake section.
2.
Service or parking system pressure leakage causing spring brakes to partially apply.
3.
Broken return spring in spring brake section (double diaphragm type).
SERVICE BRAKES APPLY WHEN SPRING BRAKES ARE RELEASED BY AIR
000102
1.
Leaking pushrod seal between spring brake and service section.
2.
Improper plumbing.
LEAK THROUGH SERVICE EXHAUST PORTS, SPRING BRAKES RELEASED BY AIR
000102
Leaking pushrod seal between spring brake and service section.
SPRING BRAKES WILL NOT RELEASE (NORMAL OPERATION)
000102
1.
Insufficient air pressure.
2.
Air leaks in spring brake air system.
3.
Restrictions in spring brake air system.
4.
Ruptured diaphragm and/or seal in spring brake section.
5.
Broken spring causing malfunction.
SPRING BRAKES CANNOT BE MECHANICALLY RELEASED
000102
1.
Release bolt stripped or broken.
2.
Broken internal release mechanism.
3.
Broken power spring blocking full release.
END OF TASK
END OF WORK PACKAGE
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