Brake Clutch Service - BRADEN PD12C Series Installation Maintenance And Service Manual

DISASSEMBLY
1. Remove the snap ring and sprag bushing retainer
from one end only.
i
NOTE: The brake clutch on PD17A winches
uses a stepped inner race, which eliminates one
retaining ring and bushing retainer. The larger
end of the inner race is toward the motor.
2. Pull the inner race out.
scoring, wear or indentations caused by the sprag
cams.
3. Use a screwdriver and mallet to remove the sprag
bushing from one end of the outer race. There are
four special cut-outs in the bushing for this
purpose. Be careful not to damage the bushing
inside surface. If a bushing's inside surface is
damaged or shows wear, replace it.

BRAKE CLUTCH SERVICE

Examine the race for
4. Next, slide the sprag clutch out, inspect the sprag
clutch closely for abnormal wear, cracks, pitting or
corrosion. Check small clips for breakage or bright
spots; the signs of excessive wear. Unless the
outer race or remaining sprag bushing is damaged
or shows excessive wear, there is no need for
further disassembly. If disassembly is necessary,
remove the bushing according to the procedure
covered in Step No. three (3). All brake clutch
assembly parts should be thoroughly cleaned and
inspected before assembly.
WARNING
WARNING
!
The polished surfaces of the races and sprag cams
must be perfectly smooth to insure positive
engagement of the clutch. The slightest defect may
reduce brake clutch effectiveness, which may lead to
loss of load control and result in property damage,
personal injury
recommended to replace the entire brake clutch
assembly if any component is defective.
ASSEMBLY
1. Press a sprag bushing into the outer race, using a
mechanical or hydraulic press.
approximately the same diameter as the bushing
flange outside diameter should be placed between
the press and bushing during assembly to protect
the bushing.
against the shoulder in the outer race.
– 26 –
!
CAUTION
or death. It is generally
A flat plate of
Be certain the bushing flange is