TM-9-2320-366-20-2
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-2 - Page 1316 of 1632
TM 9-2320-366-20-2
j4D.
M1088 TRAILER HANDBRAKE DOES NOT OPERATE (CONT)
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
KNOWN INFO
NO
YES
4.
2-1976.64
Change 1
Air present at rear and fifth
wheel gladhands when service
brakes applied.
Air hoses free from kinks.
Air brake protecting valve OK.
Air hose 162 OK.
Air hose 129 OK.
POSSIBLE PROBLEMS
Is air present at
trailer service brake
valve supply port?
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
KNOWN INFO
If air is not present, park
control two-way check valve
is faulty.
If air is present, air
hose 161 is faulty.
Is air present at park
control two-way check
valve delivery port?
NO
Replace park control
two-way check valve
(para 11-19).
YES
Replace air hose
161 (para 11-21).
Go to step 5
of this fault.
5.
Replace trailer service
brake valve (para 11-32).
If air is present, trailer service
brake valve is faulty.
Faulty trailer service brake
valve.
Faulty park control two-way
check valve.
Faulty air hose 161.
Air present at rear and fifth
wheel gladhands when service
brakes applied.
Air hoses free from kinks.
Air brake protecting valve OK.
Air hose 162 OK.
Air hose 129 OK.
Trailer service brake valve OK.
POSSIBLE PROBLEMS
Faulty park control two-way
check valve.
Faulty air hose 161.
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