22
DISASSEMBLY
1. Remove the snap ring and sprag bushing retainer
from one end only.
2. Pull the inner race out. Examine the race for scor-
ing, 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 sur-
face. If a bushing’s inside surface is damaged or
shows wear, replace it.
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 fur-
ther 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.
ASSEMBLY
1. Press a sprag bushing into the outer race, using a
mechanical or hydraulic press. A flat plate of
approximately the same diameter as the bushing
flange outside diameter should be placed between
the press and bushing during assembly to protect
the bushing. Be certain the bushing flange is
against the shoulder in the outer race.
BRAKE CLUTCH SERVICE
ARN-
ING
The polished surfaces of the races and sprag cams
must be perfectly smooth to insure positive engage-
ment 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 or death. It is generally recommended to
replace the entire brake clutch assembly if any com-
ponent is defective.
