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Page Title:
DRAWBAR WILL NOT RAISE OR REMAIN RAISED. (Cont) |
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 TM 9-2330-385-14
4. DRAWBAR WILL NOT RAISE OR REMAIN RAISED (CONT).
2.
KNOWN INFO
TEST OPTIONS
Truck air system OK.
Visual and audible inspection.
Are air lines 2226, 2224,
Drawbar frame OK.
2228, fittings, air bag
REASON FOR QUESTION
control valve, inversion
POSSIBLE PROBLEMS
valve, air bag and safety
If lines and/or components leak,
valve free of leaks?
Air lines and fittings faulty.
drawbar will not raise or
Quick disconnect check
remained raised.
valve faulty.
Air reservoir 1 check
valve faulty.
Air bag control valve faulty.
Inversion valve faulty.
Safety valve faulty.
Tighten loose fittings,
repair or replace air
lines and/or replace
NO
components.
Verify repair, go to
Step 8 of this Fault.
YES
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck air system OK.
Pressure test.
on Page 4-229
Drawbar frame OK.
Air lines, fittings, valves and
REASON FOR QUESTION
air bag free of leaks.
Does quick disconnect check
If check valve is faulty, air
POSSIBLE PROBLEMS
valve allow 125 5 psi
pressure will not be available to
inflate air bag.
(862 34 kPa) to pass through
Quick disconnect check
hose 2229?
valve faulty.
Air reservoir 1 check
valve faulty.
Air bag control valve faulty.
Inversion valve faulty.
Safety valve faulty.
Replace check valve
on quick disconnect
NO
Verify repair, go to
Step 8 of this Fault.
YES
4-228
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