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SERVICE INSTRUCTIONS
CONTINUED
15) Remove and discard oil seal, item 711, and if present, backup washer, item 710, from bore of brake housing.
Inspect two needle bearings, item 605, and replace if necessary.
16) To separate bearing flange, item 530, and brake housing, item 700, use a standard bearing puller or insert
two heel bars in slot between bearing flange and brake housing and pry brake housing out of ball bearing,
item 533.
17) Remove internal retaining ring, item 534, to remove ball bearing, item 533. Remove and discard oil seal, item 531.
REASSEMBLY
Thoroughly clean all parts. Use only new, well-greased O-rings and oil seals. Unless otherwise specified, torque
fasteners per BOLT TORQUE CHART at back of manual.
REASSEMBLY OF FINAL DRIVE:
Reassemble final drive end of winch as follows:
1) Press new, well-greased oil seal, item 105, into final housing, item 100.
2) Press ball bearing, item 103, into final housing and secure with retaining ring, item 104.
3) Press cable drum, item 500, into ball bearing, item 103, and secure with circlip, item 513.
4) Reassemble final planet hub assembly. Use grease to temporarily hold 24 loose rollers, item 323, in bore
of planet gear, item 320. Position thrust washers, item 321, on either side of planet gear and press planet
pin, item 310, into final planet hub, item 300. Retain with circlip, item 311.
5) Insert final planet hub assembly into final housing, item 100. Ensure that final planet hub spline is fully
engaged with cable drum, item 500.
6) Install new, well-greased O-ring, item 123, into end cover, item 120. Verify that planet hub stopper, item 126,
and sungear stopper, item 122, are installed into end cover.
7) Gently insert end cover into final housing, item 100, and fasten with retaining ring, item 124.
REASSEMBLY OF PRIMARY DRIVE:
Turn winch over, resting on end cover with cable drum opening facing up. Reassemble primary drive as follows:
1) Press new, well-greased oil seal, item 531, into bearing flange, item 530. Press ball bearing, item 533, into
bearing flange and secure with retaining ring, item 534.
2) Press bearing flange assembly onto brake housing, item 700, and install new, well-greased O-ring, item 539.
3) Install new, well-greased oil seal, item 607, with backup washer (if included in seal kit), item 606, into
connecting shaft, item 600.
4) Press needle bearing, item 603, into connecting shaft, item 600.
5) If removed, replace two needle bearings, item 605, by pressing into brake housing, item 700. Install new, well-
greased oil seal, item 711, with backup washer (if included in seal kit), item 710, into brake housing.
6) Slide sprag clutch aligner, item 724, onto connecting shaft, item 600, followed by sprag clutch, item 723, and
sprag clutch aligner, item 722. Twist connecting shaft assembly through center of brake hub, item 720, as
shown in BRAKE GROUP drawing.
IMPORTANT:
For proper brake function, verify that sprag clutch is installed correctly. When viewed from
motor end, connecting shaft of clockwise hoisting winch must run freely clockwise and lock
in counterclockwise direction.
313 REV.970317
