TM 9-2320-279-20-2
Brake and Air System Maintenance Instructions (Cont)
11-14.
FRONT DOUBLE CHECK VALVE REMOVAL/INSTALLATION (CONT).
a.
Removal.
NOTE
.
Three double check valves are mounted near front crossmember. One is mounted on
top and two are connected together in front of crossmember.
.
Tag and mark air lines before removal.
(1)
Disconnect four air lines (1).
NOTE
Some vehicles have a nut, lockwasher, and screw. Others have a flanged nut and screw.
(2)
Remove nut (2), lockwasher (3), and screw (4). Remove lower double check valve (5) and middle
double check valve (6).
11-58
Change 2
