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 143 of 938

TM 9-2320-279-20-2

Brake and Air System Maintenance Instructions (Cont)

(3)

Disconnect three air lines (7).

NOTE

Some vehicles have a nut, lockwasher,

screw. Others have a flanged nut and

screw.

and

(4)

Remove nut (8), lockwasher (9),

screw (10), and upper double

check valve (11).

(5)

Remove lower double check valve (5)

and middle double check valve (6) from

nipple (12).

NOTE

Tag and mark elbows before removal.

(6)

Remove two elbows (13 and 14) from

lower double check valve (5).

(7)

Remove two elbows (15 and 16) from

middle double check valve (6).

NOTE

Do step

(7.1)

for M984E1 only. Do step

(8)

for all others.

17.1)

Remove four elbows (17, 18, 19, and

19.1) and adapter (19.2) from upper

double check valve (11).

(8)

Remove three elbows (17, 18, and 19)

from upper double check valve (11).

Change 2

11-59