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Page Title:
MAIN WINCH LH FREESPOOL DOES NOT OPERATE |
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 TM 9-2320-366-20-3
INITIAL SETUP
Equipment Conditions
Tools and Special Tools
Engine shut down (TM 9-2320- 366-10-1).
Tool Kit, Genl Mech (Item 46, Appendix C)
Air tanks drained (TM 9-2320-366-10-1).
STE/ICE-R (Item 41, Appendix C)
M1089 30K Winch Pneumatic Test Adapter
Personnel Required
(Item 25, Appendix E)
(2)
Goggles, Industrial (Item 15, Appendix C)
References
TM 9-4910-571-12&P
NOTE
Perform Electrical System Troubleshooting
task e140. Main Winch LH or RH Freespool
Switch Does Not Operate prior to beginning
this task.
START
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
1.
Air Pressure Test
LH 30K winch operates.
STE/ICE-R Test #50
STATION SELECTOR switch to
Is 75-120 PSI
REASON FOR QUESTION
WRECKER CONTROL PANEL.
(518-837 kPa) present at
If 75-120 PSI (518-827 kPa) is
MODE SELECTOR SWITCH to
pneumatic manifold solenoid
not present, 30K winch
NORMAL.
L19 port 1?
pneumatic manifold is faulty.
MAIN WINCH LH SPEED
switch operates.
RH 30K winch freespools.
MAIN WINCH LH FREESPOOL
switch OK.
M1089 control panel wiring
NO
harness OK.
Terminal block jumper OK.
POSSIBLE PROBLEMS
Faulty 30K winch pnuematic
Repair 30K winch pneumatic
manifold solenoid L19.
YES
solenoid or replace solenoid L19
Faulty air hose.
(para 17-29).
Faulty LH 30K winch
assembly.
Change 1
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