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8. Remove the motor support capscrews and install two cap-
screws and a short piece of chain into the motor mount-
ing bolt holes. Using the chain as a handle, lift the motor
support out of the brake cylinder being careful to avoid
damaging the sealing surfaces. Remove and discard the
O-ring and backup ring from the motor support. Refer to
“Motor Support — Brake Cylinder Service” for additional
information. Note the location of the brake-release port
in relation to hoist prior to removing the brake cylinder.
For PD10-75B/77B and PD15-75B/77B hoists
, remove the
lip seal, remove the motor-end side plate, and continue with
Step 9.
9. Remove the lip seal by using a bearing puller or two heel-
type pry bars placed between a wooden block on the pri-
mary planet carrier and the drum closure. Pry upward.
Remove and discard the O-ring from the outside of the
drum closure.
10. Remove the bearing from inside of closure.
11. Remove the primary sun gear and thrust washer from the
primary planet carrier.
12. Remove the primary planet carrier from the drum. Refer
to “Planet Carrier Service” for additional information.
13. Remove the output sun gear and thrust washer from the
output planet carrier.
14. Remove the output planet carrier from the drum. Refer
to “Planet Carrier Service” for additional information.
