TM-9-2320-279-20-2

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 2 OF 3

TM-9-2320-279-20-2 - Page 134 of 938

TM 9-2320-279-20-2

Brake and Air System Maintenance Instructions (Cont)

11-12. BRAKE RELAY VALVES REMOVAL/INSTALLATION (CONT).

NOTE

Some vehicles have two nuts, lockwashers,

and screws. Others have two flanged nuts

and screws.

(10)

Remove two nuts (19),

lockwashers (20), screws (21), and

bracket (12).

(11)

Remove two screws (22),

lockwashers (23), and bracket (24).

(12)

Remove double check valve (8).

h.

Left Rear Brake Relay Valve Installation (M978).

(1)

Coat threads with pipe thread sealing

compound and install double check

valve (1).

(2)

Install bracket (2) with two screws (3)

and lockwashers (4).

NOTE

Some vehicles have two nuts,

lockwashers, and screws. Others

have two flanged nuts and screws.

(3)

Install bracket (5) with two screws (6),

lockwashers (7), and nuts (8).

11-50

Change 2