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 762 of 933

TM 9-2520-270-34

CAUTION

First range relay directional control slide and

slide bore are precision fit parts. Do not drop,

scratch, or nick slide. Equipment can be

damaged.

3. REMOVE DIRECTIONAL CONTROL

SLIDE (1) AND SPRING (2).

5. CLEAN FIRST RANGE RELAY

VALVE ASSEMBLY.

a. Clean assembly and piece parts. See

page 2-2.

6. INSPECT FIRST RANGE RELAY

VALVE ASSEMBLY.

a. Inspect assembly and piece parts. See

page 2-5,

7. CHECK HOUSING (5).

a. Using micrometer caliper set and

small hole gage set, measure inside

diameter of bore (6) in housing (5).

Do not measure threads.

b. If measurement of bore (6) is more

than 0.5008 inch (12.720 mm), replace

valve assembly and go to END OF

TASK. If not, go to step 8.

4. REMOVE MACHINE THREAD PLUG (3).

a. Using 3/8-inch drive ratchet handle

and 1/4-inch socket wrench

attachment, remove plug (3).

b. Remove and discard preformed

packing (4).

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