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 380 of 933

TM 9-2520-270-34

8. CHECK SPRING (1).

a. Using inside indicator caliper, measure

free length of spring (1). If spring free

length is less than 3.98 inches

(101 .09 mm), go to step 11. If not go to

step 9.

9. CHECK PISTON (2).

a. Using micrometer caliper set, measure

outside diameter of piston (2). If piston

diameter is less than 1.059 inches

(26.90 mm), go to step 11. If not go to

step 10.

13. INSERT PISTON (2) AND SPRING (1) IN

COVER (3).

14. INSTALL BOLT (5),

a. Coat new preformed packing (6) with

10. CHECK COVER (3).

transmission oil and install on bolt (5).

a. Using micrometer caliper set and

b. (H) Hold cover (3) on workbench.

telescoping gage set, measure inside

diameter of bore (4). Do not measure

c. Push in and turn bolt (5) until threads

threads. If diameter is more than

catch.

1.064 inches (27.03 mm), go to step 11.

If not go to step 13.

11. REPLACE OIL FILTER COVER (3).

12. EFFORT IS COMPLETE. GO TO END OF

TASK.

d. Using adapter and 35-mm socket, install

bolt (5).

15. USING 1/2-INCH DRIVE TORQUE

WRENCH WITH ADAPTER AND 35-MM

SOCKET, TORQUE BOLT (5) TO 45-50 ft-lb

(6-7 mkg).

4-76.4

Change

3

ASSEMBLE