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Page Title:
ALL PARKING BRAKES DO NOT RELEASE. |
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 TM 9-2330-385-14
4-16. BRAKE SYSTEM TROUBLESHOOTING PROCEDURES (CONT).
1. ALL PARKING BRAKES DO NOT RELEASE.
INITIAL SETUP
Tools and Special Tools
References
Tool Kit, General Mechanic's: Automotive
TM 9-2320-364-10
(Item 50, Appendix J)
Equipment Condition
Pressure Test Kit (Item 34, Appendix J)
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Personnel Required
Two
Wheels chocked, (TM 9-2320-364-10)
Emergency air supply gladhand connected
to truck, (Para 2-22)
Air system charged, (Para 2-22)
START
1.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck air system OK.
Pressure test.
on Page 4-253
REASON FOR QUESTION
POSSIBLE PROBLEMS
Does multifunction valve
If multifunction valve fails
supply 125 5 psi (862 34
Multifunction valve faulty.
closed, air pressure will not be
kPa) to brake chamber?
available at brake chambers to
release brakes.
Replace multifunction
valve (Para 4-52).
NO
Verify repair, go to
Step 2 of this Fault.
YES
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