TM 55-1930-209-14&P-21
5-91
Winch drum removal
a.
Shaft and Bearings Disassembly
(1)
Remove drum shaft and drum assembly.
(2)
Gear end disassembly is performed as follows:
CAUTION
Support the winch drum assembly in a suitable stand so that the drum drive gear teeth are not
supporting any of the weight of the assembly.
(a)
Refer to Figure 5-43 and remove bolts attaching airline end plate and air coupling to shaft.
(b)
Remove lock nut and lock washer from end of shaft bolts attaching end plate to shaft.
(c)
Pull drive gear off shaft using a suitable puller.
(d)
Pull pillow block off roller bearing.
(e)
Use a suitable puller and pull inner roller bearing retainer and roller bearing off the shaft.
(f)
Pull clutch mechanism out of clutch drum.
(g)
Remove drum bearing lube line, elbow and bearing retainer.
(3)
Disassemble other end of drum as follows:
(a)
Remove lock nut and washer from end of shaft.
(b)
Pull pillow block off shaft.
(c)
Use a suitable puller, if necessary, and pull roller bearing off shaft.
NOTE
The bearings on the end of the shaft away from the drive gear are floating bearings and are
installed with a push fit or light press fit. A puller may not be required to remove these bearings.
(d)
Remove spacer and drum bearing lube line and elbow.
(e)
Remove bearing retainer.
(4)
Push shaft, from drive gear end, through drum far enough to attach a puller to drum bearing. Remove
drum bearing.
(5)
Push shaft toward drive gear end until other drum bearing can be removed. Use a puller as necessary.
(6)
Remove drum shaft.
5-104
