TM-9-2520-270-34

HYDROMECHANICAL CROSSDRIVE, TRANSMISSION HMPT 500 AND TRANSMISSlON CONTAINER ASSEMBLY

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE

NOVEMBER 1984

TM-9-2520-270-34 - Page 272 of 933

TM 9-2520-270-34

8.

CHECK PISTON (1).

a. Using micrometer caliper set, measure

diameter of short end of piston (1).

b. Replace piston (1) if measurement is

less than 0.3115 inch (7.91 mm).

9. INSTALL PISTON (1) AND SPRING (2)

IN HOUSING (3).

a. Place housing (3) in vise.

b. Coat piston (1) with transmission oil.

c. Install piston (1), short end first, in

housing (3).

d. Install spring (2) on piston (1).

10. INSTALL CAP (4).

a. Coat new preformed packing (5) with

transmission oil.

b. Install packing (5) on cap (4).

c. Install cap (4).

11. USING 1/2-DRIVE TORQUE WRENCH,

TORQUE CAP (4) TO 50-55 ft-lb

(7-8 mkg).

12. REMOVE VALVE (6) FROM VISE.

3-30.2

Change 2