TM-9-2350-277-34

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

TM-9-2350-277-34 - Page 367 of 871

TM 9-2350-277-34

REPAIR COMMANDER’S CUPOLA (M113A3, M1059A3, M1064A3, AND

M58 ONLY) — Continued

0051 00

INSTALLATION

1.

Invert new hatch (4).

NOTE

If one ball bearing or separator needs to be replaced, all ball bearings and separators must

be replaced.

2.

Install inner race (8) on hatch (4).

CAUTION

Improper installation will cause binding, resulting in bearing failure. Bearing block (7) concave

surface must face toward cupola center.

Do not use talcum or other powder to reduce friction. When talcum is exposed to moisture, a

chalky substance will form, causing binding.

NOTE

Alternately, install 24 separators (6) and 23 ball bearings (5) between bearing blocks (7). One

separator is to be installed on each side of each bearing block. A maximum number of sets (one

ball and one spacer per set) is needed between any two blocks. The number of sets in each space

between blocks must not differ by more than one set.

0051 00-10

Change 2