Specifications

TM 9-2330-384-14&P
4-41. RELAY QUICK RELEASE VALVE MAINTENANCE.
THIS TASK COVERS
a.
Operating Test c.
Removal
b.
Leakage Test d.
Installation
INITIAL SETUP
Equipment Conditions:
Ref Conditions
2-11 Wheels chocked.
Tools:
l Tool kit, general mechanic’s
l Channel lock oliers
l Face shield
l Safety goggles
References:
l TM 9-2320-273-10 or
l TM 9-2320-283-10
Materials/Parts:
l Detergent
(Item 9, Appendix E)
l Tag marker
(Item 21, Appendix E)
l Antiseize tape
(Item 22, Appendix E)
Personnel Required: Two
General Safety Instructions:
l Wear safety goggles and face shield when
performing leakage tests on relay quick re-
lease valves.
l Ensure that air lines do not rub against
each other or any other surface when in-
stalled.
a. OPERATING TEST
(1) If disconnected, connect tractor EMERGENCY and SERVICE air couplings to semitrailer (see
paragraph 2-12). Fully pressurize semitrailer air system (see TM 9-2320-273-10 or
TM 9-2320-283-1 0).
(2) Apply tractor service brakes and check that semitrailer brakes apply properly (see paragraph
2-12).
(3) Release brakes and check whether air pressure is exhausted through exhaust port on under-
side of relay quick release valves (2).
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