TRAILER AIR SUPPLY VALVE REPLACEMENT
This task covers:
a. Removal b. installation
Tools and Special Equipment:
Tool Kit, SC 5180-90-CL-N26
Air Pressure Relieved
General Safety instructions:
W A R N I N G
D o n o t d i s c o n n e c t a n y a i r
system lines or fittings unless
vehicle engine is shut off and
air system pressure is relieved.
To do so could result in injury
Tag lines prior to disconnecting to
aid in connecting.
Disconnect two LINES (1) from trailer air
supply valve (2).
LOOSEN NUT (3) and REMOVE KNOB (4)
and nut (3) from valve (2).
REMOVE two nuts (5), two screws (6), and
REMOVE two elbows (7) and two ADAPTERS
(8) from valve (2).
INSTALL two ADAPTERS (8) and two elbows
(7) in trailer air supply valve (2).
INSTALL VALVE (2), two screws (6), and two
INSTALL nut (3) and KNOB (4) on valve (2)
and TIGHTEN NUT (3).
CONNECT two LINES (1) to valve (2).
Lower cab (page 4-418).