TM 55-1930-209-14&P-21(2)Drums can be removed from winch with wire rope on drum. However, extra weight will increase difficultyof handling drum. Remove wire rope from drum prior to maintenance that requires complete drum disassembly such aswinch overhaul.(3)Instructions in this chapter assume complete disassembly of each component addressed. It isunnecessary to disassemble all parts of a drum to replace a single part such as a bearing. Disassemble componentsonly as far as is necessary to effect repair.b.Preparation. Drum and drive shaft maintenance requiring removal of the shafts will require removal of the chaincase, gear guard and brake bands.(1)Remove chain case.(2)Remove brake bands.c.Cleaning. Clean all components prior to disassembly and as required during disassembly. Use a suitablesolvent to clean grease and oil from metal parts.Section XXI. Drive Shafts and Drums5-88Winch drive shaft removalNOTEIf the gears are binding, ensure that the torque converter clutch is disengaged and release onedrum parking brake. Then bar the drum gear so that the drive gear assembly rides up the otherdrum gear (parking brake applied) until the drive gear is free.b.Disassembly(1)Refer to Figure 5-42 and start at drive gear end of shaft. Remove six hex head screws from roller bearingretainer, and retainer.(2)Remove lube fitting from roller bearing pillow block and pull pillow block off bearing.(3)Use a suitable gear puller and pull roller bearing, spacer and drive gear off shaft. Remove second spacerat ball bearing shoulder of shaft.(4)Remove bearing cover, seal and spacer from sprocket end of shaft.(5)Pull pillow block off ball bearing. Use a suitable bearing puller and pull bearing and bearing retainer offshaft.5-101
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