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 242 of 933

TM 9-2520-270-34

REPLACE LOCKRING INSER T

DESCRIPTIO N

This subtask covers: Remove (Page 2-176). Install (page 2-177).

1. COUNTERBORE LOCKRING

INSERT (1).

a. Using portable electric drill, indicator

caliper, and removal tool (2), drill

through Iockring (3) and neck of

insert (4).

b. Drill to existing counterbore

depth (5).

c. Remove all serration interlocks (6)

on Iockring (3) and neck of insert (4).

WARNING

Compressed air can injure

you and others. Do not aim air

at soldiers. Do not use more

pressure than 30 psi (207 kPa).

Always wear goggles.

3. CLEAN HOUSING THREADS (8).

a.

b.

c.

2-176

Lubricate thread cutting tap (9) with

transmission oil.

Using tap wrench and thread cutting

tap (9), clean housing threads (8).

Slowly turn tap in and out of housing

threads. See task for proper tap.

Using compressed air, blow dirt and

any loose metal chips out of housing

threads (8).

Change 2

2. REMOVE INSERT (1) WITH

LOCKRING (3).

a. Drive screw extractor (7) through

Iockring (3) into insert (1).

b. Using screw extractor (7), unscrew

insert (1). Lockring (3) will be

forced out with insert (1).

4.

5.

INSPECT HOUSING THREADS (8) FOR

WEAR OR STRIPPING.

a. If housing threads (8) are damaged, go

to step 5. If not, go to step (6).

REPLACE OUTPUT HOUSING. RECORD

FAILURE ON DA FORM 2407 AND

RETURN DEFECTIVE HOUSING TO

DEPOT.