TM-9-2520-234-35 Technical Manual for M109 Transmission XTG-411-2A Download
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*C2 PAR 202-203 TRANSMISSION HOUSING REBUILD CHAP 5, SEC XXVIII Section XXVIII. TRANSMISSION HOUSING — REBUILD 202. DESCRIPTION The transmission main housing is a cast aluminum alloy housing. It houses and sup- ports the range gearing, range clutches, left- steer planetary carrier, brake, steer clutch and output clutch assemblies. The main hous- ing also serves as the oil sump for the trans- mission. 203. DISASSEMBLY (fig. 375, fold-out 4) a. Remove two hook-type seal rings from the hub of the diaphragm (fig. 232). b. Remove the thrust washer (fig. 232). c. Remove two preformed packings from the transmission housing (fig. 232). Figure 232. Removing hook-type seal ring from hub of diaphragm assembly d. Remove retaining ring that retains bearing (fig. 232). e. If necessary to remove the diaphragm assembly, use a 9/16-inch wrench to remove four self-locking bolts retaining diaphragm. Position housing in a press, and press out the diaphragm. Refer to fig. 233. f. If the diaphragm assembly was re- moved, remove the diaphragm clamp plate. Refer to fig. 232. g. Remove the gage rod cap from the oil filler assembly. Refer to fig. 233. h. Using a 9/16-inch wrench, remove four bolts and lock washers from the oil filler tube assembly. Remove the oil filler tube assembly. Refer to fig. 233. i. Using a 9/16-inch wrench, remove six cap screws (two different lengths) and lock washers that retain the accumulator body. Re- move the accumulator body. Refer to fig. 233. Figure 233. Transmission main housing 157