TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 9-2 NO-BACK BEARING This task covers: a. Removal b. Disassembly c. Assembly d. Installation Tools Artillery and turret mechanic’s tool kit (SC 5180-95-CL-A12) Arbor press (item 13, Appx F) Materials/Parts Grease (item 21, Appx B) Gasket (item 132, Appx E) Key washer (item 27, Appx E) Lubricating oil (item 23, Appx B) No-back device parts kit (item 117, Appx E) Preformed packing (item 53, Appx E) M109A4/M109A5 Retaining ring (item 20, Appx E) Seal (item 167, Appx E) M109A4/M109A5 Sealing compound (item 31, Appx B) Equipment Condition Turret lock in LOCKED position (TM 9-2350-31 l-l 0) CAB POWER switch to OFF (TM 9-2350-311-10) Vehicle MASTER switch to OFF (TM 9-2350-311-10) Handwheel assembly removed (TM 9-2350-311-20-2) a. Removal 1 Remove woodruff key (1) from shouldered shaft (2). NOTE Step 2 applies to only M109A4/M109A5 howitzers. 2 Remove dust protective cap (3) preformed packing (4), and seal (5). Discard preformed packing and seal. 3 Remove six cap screws (6). NOTE Retain shims unless new components are to be installed. 4 Remove mechanical housing (7) and shim(s) (8) from mechanical housing (9). 5 Note and record dimension “A” stamped on mechanical housing (9). 6 Remove bevel gearshaft assembly (10) and woodruff key (11) from mechanical housing (7). NOTE No-back bearing components will separate when removed from shouldered shaft and mechanical housing. 7 Remove no-back bearing (12) and pin (13) from shouldered shaft (2). Discard pin. 9-6 Change 2