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 864 of 933

TM 9-2520-270-34

CAUTION

Second range directional control

slide bore in valve are precision

slide and

fit parts.

Do not drop, scratch, or nick slide. Equipment

can be damaged.

3. REMOVE DIRECTIONAL CONTROL

SLIDE (1), SPRING (2), AND

RETAINER (3).

7. CHECK HOUSING (5).

a. Using small hole gage set and

micrometer caliper set, measure

diameter of bore (6) in both ends

of housing (5). Do not measure

threads.

b. If either measurement is more than

0.5009 inch (12.723 mm), replace valve

assembly and go to END OF TASK.

If not, go to step 8.

4.

5.

6.

USING RETAINING-RING PLIERS,

REMOVE AND DISCARD RETAINING

RING (4).

CLEAN SECOND RANGE RELAY

VALVE ASSEMBLY.

a. Clean housing and piece parts. See

page 2-2.

INSPECT SECOND RANGE RELAY

VALVE ASSEMBLY.

a. Inspect housing and piece parts.

page 2-5.

See

8. CHECK SPRING (2).

a. Using indicator caliper, measure free

length of spring (2), Replace spring

if free length is less than 0.90 inch

(22.86 mm).

4-522

Change

1