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TM 9-2330-326-14&P
6-11. ECU VALVE REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
c. Follow-On Tasks
Initial Setup:
Tools and Special Tools:
Materials:
Tool kit, general mechanic's (Item 4, Appendix B-3)
Sealing compound (Item 46, Appendix F)
Equipment Conditions:
References:
Landing legs down
Electrical power disconnected
Semitrailer disconnected from prime mover
Tires chocked on both sides of vehicle
WARNING
Wear protective goggles when underneath trailer. Insure air tanks
are drained of pressurized air. Failure to do so could result in injury
to personnel.
CAUTION
Do not use Teflon tape.
NOTE
See Appendix H-33 for technical data on air brake system.
General Procedure:
a. Removal.
1.
Open drain valve on front air reservoir and allow air to escape.
2.
Disconnect four sensor cables from ECU valve (2).
3.
Disconnect electrical cables from ECU valve (2).
4.
Remove two hoses and two elbows from curbside of ECU valve (2).
5.
Remove two pipe plugs (3) from rear of ECU valve (2).
6
Remove two elbow fittings and two hoses from roadside of ECU valve (2).
7.
Remove pipe nipple (1) from air reservoir and pull away ECU valve (2) from front air reservoir.



 


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