BRADEN CH280 Installation Maintenance And Service Manual page 25

7. Remove the overrunning clutch assembly (Item 1)
from the center of the brake cylinder assembly.
Refer to Overrunning Clutch Assembly Service section
in this manual for additional information. Remove the
eight capscrews (Item 51) and lockwashers (Item 52)
from the motor adapter, and remove the brake cylinder
assembly. Remove and discard the V-ring seal (Item
103) that was under the brake cylinder. Do not remove
the four capscrews holding the motor adapter to the
brake cylinder at this time. Refer to Brake Cylinder
Service section of manual.
8. Remove the motor end plate (Item 48) from the drum.
9. There are two 1/2-inch NC tapped holes in the drum
closure (Item 56). Install two capscrews or threaded
eyebolts to aid in removing the closure from the cable
drum. Remove and discard the O-ring (Item 68) from
the OD of the drum closure.
10. Install two eyebolts into top end of ring gear. Lift ring
gear out of drum. Remove planet gear sets from drum.
11. Lift the cable drum (Item 59) off of the drum support
assembly (Item 5).
12. Thoroughly clean and inspect all disassembled com-
ponents at this time. Inspect bearings in the drum clo-
sure and cable drum (Items 64 and 65), and replace
as required. Inspect sealing surfaces on the drum sup-
port and brake cylinder and repair any damaged areas
if possible, or replace components as required. Dur-
ing a complete hoist teardown, drum seals (Items 69
and 70) and V-ring seals (Items 103 and 104) should
always be replaced. Inspect thrust washers (Items 66
and 67) for signs of excessive wear, heat damage or
metal transfer and replace as necessary. Inspect the
ring gear teeth for nicks, spalling, or excessive wear.
Replace if wear in contact areas is greater than 0.015
inch (0.4 mm) when compared to unworn area of
teeth.
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