TM-9-2320-279-34-3

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

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

TM-9-2320-279-34-3 - Page 400 of 717

TM 9-2320-279-34-3

Power Takeoff (PTO) and Hydraulic Pump Maintenance Instructions (Cont)

19-4.

HYDRAULIC PUMP REPAIR (M984E1) (CONT).

c. Assembly

NOTE

There are two models of hydraulic

pumps. Model B has four additional

preformed packings and different

wear plate configuration.

Lubricate all parts with oil before

installing.

(1)

Install eight studs (1) in inlet port

section (2). Tighten studs to 25 to 35

lb-ft (34 to 48 N•m).

NOTE

Model A has two studs. Do step

(2)

for

Model A. Do step 5.1 for Model B.

(2)

Install two studs (3) in inlet port

section (2). Tighten studs to 25 to

35 lb-ft (34 to 48 N•m).

(3)

Install preformed packing (5).

(4)

Install coupling (6).

(5)

Install center section (7).

NOTE

Do step (5.1) for Model B.

(5.1)

Install preformed packing (7.1) on center

section (7).

NOTE

Coat seal glands with small amounts of petroleum jelly to hold in place in seal

retainers during assembly.

(6)

Install seal gland (8), seal retainer (9), and rear wear plate (10), bronze end up.

19-22

Change 3