TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 23 24 25 26 27 28 29 30 31 Apply sealing compound (item 29, Appx B) to six cap screws (14). Apply sealing compound (item 31, Appx B) to new gasket (15) and install on mechanical housing (4) using six cap screws (14). Install shim(s) (13). Shim thickness must be equal to dimensions F + G - E to give 0.001 to 0.004 inch (0.025 to 0.10 mm) backlash at assembly. Use one shim and peel off laminations to obtain proper thickness. Coat ball bearing (12) with lubricating oil (item 24, Appx B). Press ball bearing into retaining plate (11) and install on gearshaft (10). Install new key washer (8) and round nut (9) on gearshaft (10). Bend locking tabs of key washer into slot in round nut to secure it. Apply sealing compound (item 31, Appx B) to new gasket (7) and install with access cover (6) using four cap screws (5). Check backlash of bevel gears through hole in mechanical housing (4). Adjust shim (13) thickness until backlash of 0.001 to 0.004 inch (0.025 to 0.10 mm) is obtained. Install new gasket (3), access cover (2), and four machine screws (1). Fill mechanical housing (4) with lubricating oil (item 25, Appx B) to bottom edge of access hole. Change 2 9-23