TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 b. Disassembly (1) If necessary, remove elbows (4 and 23) from air pump (5). (2) Remove three screws (24) and cover (25) from air pump (5). (3) Remove three vanes (26) from eccentric hub (27). Discard vanes. 4-23