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 740 of 933

9. CLEAN COOLANT AND TIME DELAY

VALVE ASSEMBLY.

a. Clean assembly and hardware. See

page 2-2.

10. INSPECT COOLANT AND TIME DELAY

VALVE ASSEMBLY.

a. Inspect assembly, piece parts, and

inserts. See page 2-5.

b. Repair inserts if damaged. See task

REPAIR COOLANT AND TIME DELAY

VALVE HOUSING INSERTS, page 4-415.

12. CHECK SPRING (4).

a.

4-410

Using indicator caliper, measure free

length of spring (4). Replace spring

if free length is less than 3.32 inches

(84.3 mm).

Change 1

11. CHECK HOUSING (1).

a.

b.

c.

d.

Using micrometer caliper set and

telescoping gage set, measure four

diameters (2).

Replace housing (1) if any measure-

ment is greater than 1.165 inches

(29.59 mm).

Using micrometer caliper set and

telescoping gage set, measure

diameter (3).

Replace housing (1) if measurement is

greater than 0.814 inch (20.68 mm).

13. CHECK DIRECTIONAL CONTROL

SLIDE (5).

a. Using micrometer caliper set,

measure two diameters (6).

b. Replace slide (5) if either measure-

ment is less than 0,8112 inch

(20.604 mm).

TM 9-2520-270-34