Remove brake parts from winch assembly. Refer to paragraph 6-7. 1, Disassembly of the Worm Brake.
Remove the brake housing (13) by removing six capscrews (42). Remove keys (18 & 19) from worm shaft.
Remove worm (25) and bearing (28) from gear housing. Use a soft hammer to tap input end of worm and drive
worm from housing. Once worm has been removed from housing, bearing (28) can be pressed from end of
m. Check for signs of wear or damage to worm (25) and bearing (28).
Remove bearing cap (5) by unscrewing six capscrews (35). Check seal (61) for signs of wear. Replace if
necessary by pressing new one back, in the same position.
Remove gear housing cover (9) from gear housing by unscrewing eight capscrews (34). Place capscrews in the
two tapped holes in the cover and tighten. This will pull the cover loose from the gear housing.
Remove gasket (50).
Pull gear and drum shaft (1 2) from gear housing.
Check for signs of wear on gear teeth. If necessary replace gear by removing eight capscrews (38).
Place new gear (12) onto gear hub. Align holes in gear with holes in hub. Press gear onto hub. Be sure gear is
seated all the way on the hub. Use eight bolts (38) to secure gear to hub. Torque to 75 ft. lbs. each.
If shaft and/or hub is damaged, replace as follows:
(1) Tap keys (20) into short keyways of drum shaft (22).
(2) Press shaft (22) and keys through gear hub (17) until end of keys on long end of shaft are flush with hub.
(3) Secure gear to hub using eight (38) capscrews. Torque to 133 ft. lbs. each.
Check gear housing (29) for signs of wear. Replace bushing, if necessary, by pressing the old bushing out of
gear housing (15) and pressing new bushing into place.
Check drum bushings (29 & 30) for wear. Replace bushings, if necessary, by removing the old bushings and
pressing new ones into place.