TM 5-3810-306-20
FOOT BRAKE CONTROL VALVE REPLACEMENT
TOOLS: General mechanic’s tool kit: automotive (5180-00-177-7033)
SUPPLIES:
Lockwashers (Item 15, Appendix C) (3 Required)
Loctite #545 (Item 13, Appendix C)
EQUIPMENT CONDITIONS: Wheels are chocked.
Air system is purged. (Refer to page 11-2.)
Disconnect ground cable at shunt. (Refer to page 8-109.)
Cab front panel removed. (Refer to page 15-10.)
Cab bottom panel removed. (Refer to page 15-11.)
REMOVAL:
1.
REMOVE STOP LIGHT SWITCH (4).
a.
Tag electrical wires (2) to stop light switch
(4).
b.
Remove nuts (3) and wires.
c.
Remove stop light switch (4) and fitting (5).
Retain fittings for installation.
2.
REMOVE
LOW
PRESSURE
INDICATOR
SWITCHES (6).
a.
Tag electrical wires (7) to low pressure indicator
switches.
b.
Remove switches (6) and fittings (8). Retain
fittings for installation.
3.
REMOVE PLUG (9).
4.
REMOVE FOOT BRAKE CONTROL VALVE (1).
a.
Tag and disconnect four air lines from foot brake
control valve (1). Plug air lines. Remove fittings
from valve. Retain fittings for installation.
b.
Remove three capscrews (10) and lockwashers
(11) securing control valve to cab floor. Remove
valve. Discard lockwashers (11).
11-25
