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 847 of 933

11. CHECK SPRING ( 1 ).

a. Using indicator caliper, measure free

length of spring ( 1 ).

b. If free length of spring ( 1 ) is Iess than

1.90 inches (48.3mm), replace valve

assembly and go to step 14.5 If not, go to

step 12.

12. CLEAN THIRD RANGE RELAY VALVE

ASSEMBLY.

a. Clean assembly and hardware. See

page 2-2.

13. INSPECT THIRD RANGE RELAY VALVE

ASSEMBLY.

a. Inspect assembly and hardware. See

page 2.5

14.1

REMOVE ADAPTER (4) AND

PREFORMED PACKING (5). DISCARD

PREFORMED PACKING.

14. CHECK SLIDE (2)

a. Using micrometer caliper set, measure

two diameters ( 3 ).

b. If either slide measurement (3) is less

than 0.6241 inch (15.852 mm), replace

valve assembly and go to step 14.5. If

not, go to step 15.

CAUTION

Valve assembly moving parts are precision

fit. Do not drop, scratch, or nick any parts.

Damage to equipment can occur.

14.2 REMOVE DIRECTIONAL CONTROL

SLIDE (6) AND SPRING (7).

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TM9-2520-270-34