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Page Title:
Table 4-12. Service Brake Air Lines |
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 TM 9-2330-385-14
Axle No. 2
Axle No. 3
Axle No. 1
Air Hose No.
Air Hose No.
Air Hose No.
LH 2547
LH 2015
LH 2016
RH 2545
RH 2017
RH 2018
The LH and RH listed with the air hose numbers indicate the brake
chamber supplied by the listed air hose.
NOTE
Trailer air system pressure must be 125
S
5 psi (862 34 kPa) to begin
troubleshooting the brake system. If the air
system pressure cannot be maintained,
refer to Air System Troubleshooting.
Air lines and valves listed in this
S
troubleshooting procedure are illustrated
and located in FO-2.
AIR LINES AND FITTINGS INSPECTION
(1) Inspect air lines and fittings
(a) If air hose(s) and fitting(s) is
crimped, repair or replace air
hose(s) and fitting(s) (see
and 4-47).
(b) If air lines and fittings are not
crimped, go to Step (2) below.
(2) Start engine (TM 9-2320-364-10).
(3) Push in trailer charge valve in
truck.
(4) While assistant fully applies brake
pedal, listen to air lines and fittings
chambers for leaks.
(a) If fittings leak and are loose,
tighten fittings.
(b) If hose(s) leaks, perform Steps (5)
through (7) below and repair or
replace hose(s) (see schematic
(c) If any of the items listed above
leak, perform Steps (5) through
(7) below and replace them
according to Maintenance
procedures (Chapter 4).
(d) If all of items above do not leak,
perform Steps (5) through (7)
below and go to Step (2) of
this Fault.
(5) Release brake pedal.
(6) Pull out trailer charge valve in truck.
(7) Turn OFF ENGINE switch.
4-301
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