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 534 of 933

TM 9-2520-270-34

5. REMOVE AND DISCARD PREFORMED

PACKING (1) FROM HOUSING (2).

7. CLEAN FRICTION CLUTCH.

a. Clean housing (2) and hardware. See

page 2-2.

8. INSPECT FRICTION CLUTCH.

a. Inspect housing (2) and hardware.

See page 2-5.

6. INSPECT BEARING BALL SEAT (3).

a.

b.

c.

d.

Using 3/8-inch drive ratchet handle

and 1/8-inch socket wrench attach-

ment, remove machine thread plug (4).

Remove and discard preformed

packing (5).

Remove bearing ball (6).

Inspect ball seat (3). Replace

housing (2) if ball seat is damaged.

9. CHECK FOUR CLUTCH FRICTION

PLATES (7).

a.

b.

c.

Using micrometer caliper set, measure

thickness at three places. Replace

all eight plates if measurement of

any plate (7) is less than

0.128 inch (3.25 mm).

Using flat surface and feeler gage,

check plate (7) for warpage. Check

inside and outside edges in three

places.

Replace all eight plates if warpage

of any plate (7) is greater than

0.010 inch (0.25 mm).

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