T M 9-2320-273-20
BRAKE SYSTEM.
9-27. DOUBLE-CHECK VALVE MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
A. REMOVAL. ]
NOTE
Before removing air lines, use masking tape
and marking pencil to identify air lines for
installation in their proper location.
1. Wires (1), air lines (3),
Remove from double-check
Replace -
and tee (8).
valve with stoplamp switch
(2).
2. Double-check valve with
Unscrew and remove.
stoplamp switch (2).
damaged.
3. Air lines (3) and elbows (4).
Unscrew from double-check
Replace if damaged.
valve (5).
4. Double-check valve (5).
Unscrew and remove.
B. INSTALLATION.
5.
6.
7.
8.
NOTE
Apply liquid teflon to threads of valves,
elbows, and tee as you assemble per the
locations you marked at disassembly.
Double-check valve with
Screw in and tighten to fire-
stoplamp switch (2)
wall, brake pedal valve (6), or
or double-check valve
secondary air reservoir (7).
(5).
Elbows (4) and tee (8).
Screw into double-check
valve with stoplamp switch
(2) or double-check valve [5).
Air lines (3).
Install at double-check valve
with stoplamp switch (2) or
double-check valve (5).
Wires (1).
Connect to terminals of double-
check valve with stoplamp switch
(2).
9-104
