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 130 of 938

TM 9-2320-279-20-2

Brake and Air System Maintenance Instructions (Cont)

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

(2)

Disconnect air supply line (3) from side

of brake relay valve (2).

(3)

Disconnect control lines (4) from double

check valve (5).

NOTE

Some vehicles have two nuts, lockwashers,

and screws. Others have two flanged nuts

and screws.

(4)

Remove two nuts (6), lockwashers

(7), screws (8), brake relay valve (2),

and bracket (9).

11-46

Change 2