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Page Title:
M1090/M1094 TAILGATE RELEASE DOES NOT OPERATE |
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 TM 9-2320-366-20-2
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)
Dump body raised to maintenance
Goggles, Industrial (Item 15, Appendix C)
position (TM 9-2320-366-10-1).
START
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
1.
Air tanks pressurized.
Visual inspection
POSSIBLE PROBLEMS
REASON FOR QUESTION
Is air present at solenoid
Faulty solenoid valve.
This question eliminates
valve port P?
Faulty air hose to front port on
possible problems and
tailgate pneumatic cylinder.
determines where
Faulty air hose to rear port on
troubleshooting continues.
tailgate pneumatic cylinder.
Faulty tailgate pneumatic
cylinder.
NO
Faulty pressure protection valve.
Faulty air hose to port P on
manual override valve.
Faulty manual override valve.
YES
Go to step 6 of this fault.
Faulty air hose to port P on
solenoid valve.
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
2.
Visual inspection
Air tanks pressurized.
REASON FOR QUESTION
Pressure protection valve OK.
Is air present at solenoid
If air is not present,
Air hose to port P on manual
valve port A?
solenoid valve is faulty.
override valve OK.
Manual override valve OK.
Air hose to port P on solenoid
valve OK.
POSSIBLE PROBLEMS
NO
Faulty solenoid valve.
Faulty air hose to front port on
tailgate pneumatic cylinder.
Faulty air hose to rear port on
Replace solenoid valve
YES
tailgate pneumatic cylinder.
(para 23-10).
Faulty tailgate pneumatic
cylinder.
Change 1
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