Motor Support-Brake Cylinder Service - BRADEN PD12C Series Installation Maintenance And Service Manual

MOTOR SUPPORT-BRAKE CYLINDER SERVICE

NOTE: Starting mid-year 1996, Braden changed the
steel brake separator discs from a splined tooth design
to a lobed design. This required a change to the motor
support and brake cylinder and the addition of a spring
spacer. A hoist with the lobed discs can be identifi ed
by a machined groove on the outside diameter of the
motor support. When replacing steel brake discs, the
motor support or brake cylinder, care must be taken to
properly identify the correct parts. Splined discs will re-
main available as spare parts.
New lobed steel brake separator plates and motor sup-
port. Note groove on outside diameter of motor sup-
port.
Although most photos in this section show splined discs,
all procedures are the same except where specifi cally
noted.
DISASSEMBLY
1. After removing the motor support and brake clutch
assembly, continue brake cylinder disassembly by
removing the spacers, friction brake discs and steel
brake discs.
2. Remove the piston back-up ring and pressure plate.
3. Remove the brake springs.
CLEAN AND INSPECT
1. Thoroughly clean and inspect all parts at this time.
Check brake piston sealing surfaces on brake cylin-
der and motor support. Be sure brake release port
is free of contamination.
2. Check oil seal and bearing surfaces on brake cylin-
der for damage or wear.
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