Brake and Air System Maintenance Instructions (Cont)
BRAKE SYSTEM VALVES
BRAKE TREADLE AND BRAKE TREADLE VALVE
This task covers:
f. Follow-on Maintenance
MOS 635, Heavy wheel vehicle mechanic
TM or Para
TM 9-2320-279-10 Shut off engine.
TM 9-2320-279-10 Air system drained.
Compound, sealing, pipe thread,
Item 18, Appendix C
Special Environmental Conditions
Tags, identification, Item 48, Appendix C
Solvent, drycleaning, Item 47, Appendix C
General Safety Instructions
Some models of vehicles have a section of
quickedge molding located behind the light
guard. Do step (1.1) for some models.
Remove four screws (1) and light
(1.1) Remove quickedge molding (2.1).
Tag and mark all wires before
Remove four nuts (3) and nine wires (4)
from brake treadle valve (5).
Disconnect two push-on wire
connectors (6) from brake treadle
Remove two bottom screws (7), nuts (8),
and lockwashers (9) from mounting
plate (10). Loosen, but do not remove
top screws. Slide brake treadle valve (5)
and mounting plate down and turn for
access to air lines.