TM-9-2320-279-34-2

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

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS DIRECT SUPPORT AND GENERAL SUPPORT, VOLUME 2 OF 3

TM-9-2320-279-34-2 - Page 146 of 632

Brake System Maintenance Instructions (Cent)

11-13. TRACTOR PROTECTION VALVE REPAIR (CONT).

(5)

Install diaphragm (8), washer (9), and screw (10) in seat (1 1).

(6)

(7’)

(8)

(9)

(lo)

(11)

(12)

Mount body (12) in vise with soft jaws.

Coat preformed packing (13) with lubricating oil and install in body (12),

Install plunger (2) in body (12).

Install spring (14)

in plunger

(2).

Position diaphragm seat assembly (15) over spring (14) and force diaphragm seat assembly in

body (12).

Install washer (16).

Install retaining ring (17) on inner groove (18) in body (12).

d.

Follow-on Maintenance.

None.

END OF TASK

11-44