TM 9-2330-386-14&P
4-30 MULTI-FUNCTION VALVE (CONT) .
(3)
Install and tightenmulti-
function valve (10) in air
reservoir (13).
(4) Install hoses (2) on multi-
function valve (10).
( 5 ) Swivel the elbows (4 and 7)
and tee (9) to the required
position.
(6) Push end of tubing (5) into
elbow (4) until it bottoms.
(7) Repeat step (6) to install
tubing (6 and 8).
( 8 ) Secure hoses (2) using new
tie strap (1).
c.Testing.
(1) Close drain cocks and charge
semitrailer air system. The
spring brake chambers should
release.
(2) Shut off the engine.
WARNING
Wear protective goggles when opening drain cock and avoid
the air stream. Failure to do so could result in personal
injury.
Open drain cock on front or rear air reservoir.
(3)
A f t e r the air system is bled down, the spring brake chambers on the
(4)
semitrailer should actuate promptly.
Apply soapy water to drain cock. Leakage at open drain cock should not
(5)
exceed a one inch bubble in five seconds. If excess leakage is seen,
replace multi-function valve (10).
Close drain cock.
(6)
Repeat steps (1) through (6) using other air reservoir.
(7)
R e m o v e wheel chocks and stow in brackets.
(8)
TASK ENDS HERE
4-56
