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 813 of 933

TM 9-2520-270-34

12.

12.1

CHECK DEPTH OF PUMP HOUSING

CAVITY (1).

a.

b.

Using depth gage measure

depth of cavity (1).

If measurement is greater than

1.003 inches (25.46 mm), go to

step 12.1. If not, go to step 13.

REPLACE HOUSING (2). RECORD

FAILURE ON DA FORM 2407 AND

RETURN DEFECTIVE HOUSING TO

DEPOT.

CAUTION

Keep eccentric ring and outer rotor together

when measuring thickness to prevent loss of

spring and vane.

Inner and outer rotors must stay a matched

set. Damage to equipment can occur.

14. CHECK GEAR ROTOR SET (7).

a. Using micrometer caliper set,

measure thickness of inner rotor (4)

and outer rotor (8).

b. Replace gear rotor set (7) if either

measurement is less than 0.998 inch

(25.35 mm) and go to step 15.

c. Using micrometer caliper set,

measure thickness of ring (9)

d. Replace gear rotor set (7) if

measurement is less than 0.985 inch

(25.02 mm).

13. DISASSEMBLE SHAFT (3).

a. Remove inner rotor (4).

b. Remove and discard woodruff key (5)

c. Using screwdriver, remove retaining

ring (6). Discard retaining ring.

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