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Page Title:
MAIN WINCH LH AND RH FREESPOOLS DO NOT OPERATE (CONT) |
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 TM 9-2320-366-20-3
aa4. MAIN WINCH LH AND RH FREESPOOLS DO NOT OPERATE (CONT)
NOTE
Ensure that pressure regulator valve is fully
open by lifting knob and turning clockwise.
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
2.
Air Pressure Test
LH and RH 30K winches
STE/ICE-R Test #50
operates.
Is 75-120 PSI
REASON FOR QUESTION
STATION SELECTOR switch to
(518-827 kPa) present
If 75-120 PSI (518-827 kPa) is
WRECKER CONTROL PANEL.
through M1089 30K winch
not present, M1089 30K winch
MODE SELECTOR SWITCH to
pneumatic manifold?
pneumatic manifold is faulty.
NORMAL.
MAIN WINCH LH and RH
SPEED switch operates.
Terminal block jumper OK.
Pressure protection valve OK.
POSSIBLE PROBLEMS
NO
Faulty air hose.
Faulty M1089 30K winch
manifold assembly.
Faulty M1089 30K winch
pneumatic manifold assembly.
Repair or replace M1089 30K winch
YES
pneumatic manifold (para 17-29).
2-2428.2
Change 1
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