TM-9-2350-277-34 Direct and General Maintenance Manual M113A3 M577A3 M1064A3 M1068A3 M58 Download
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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). C A U T I O N 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