TM 55-1930-209-14&P-21c. Refer to figure 5-3 and remove sprocket nut and lockwasher.d. Remove sprocket.NOTEA gear puller may be required to remove sprocket from drive shaft spline.e. Remove chain case mounting plate from winch.f. Remove gear guard.g. Remove bolts that mount drive shaft pillow blocks to winch frame.h. Slide drive shaft, with pillow blocks attached, out of winch drum gears and remove drive shaft assembly.5-19 Winch drive shaft installationa. Install drive shaft in reverse of removal sequence.b. Lubricate pillow block bolts and torque to 820-825 lb ft.c. Lubricate chain sprocket splines and drive shaft splines with high pressure grease lube prior to installing thesprocket.5-20 Winch drum and drum shaft removal and installationa. The winch drum assemblies are similar. The only differences are in the location of items such as the air linesand air actuating chambers.WARNINGInsure sufficient tension on the lifting device so it cannot slip on the winch frame. The angle ofthe winch frame and the weight of the assembly could damage the winch or cause serious injury ifit moves suddenly.b. Removal of winch drum assembly will require use of an overhead lifting device of at least 1 ton capacity.5-21 Winch drum assembly removala. Remove gear guard.b. Remove air line fittings from drum gear end of shaftc. Remove brake bands.d. Remove drum gear retaining nut and washer.e. Use a suitable gear puller and pull drum gear off shaft (Figure 5-4).5-13
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