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248 REV.971001
DANGER
12) Remove eight friction plates, item 715, together with nine divider plates, item 714, and inspect for damage or
wear. Plates should be flat and smooth. Plates should not show heat discoloration. Paper material on friction
13) Remove brake spacer, item 712.
14) Remove oil seal, item 711, and backup washer, item 710, and discard.
All parts have now been removed from brake housing and there is no need for further disassembly unless a failure
has been analyzed in the remaining winch assembly. If continuing, remove pipe plug, item 121, from the end cover,
item 120, and tip winch to drain lubricating oil from inside the final drive housing and cable drum.
15) Remove 12 capscrews, item 551, 12 lockwashers, item 553, and base, item 550.
16) Slide brake housing, item 700, out of cable drum ball bearings, item 509. Thoroughly inspect needle bearings,
item 605, and replace if necessary.
17) Remove and discard oil seal, item 515.
18) Remove primary sungear, item 440, from center of primary planet hub, item 400.
DISASSEMBLY OF FINAL DRIVE:
Stand winch on cable drum flange with final end up and disassemble as follows:
1) Remove retaining ring, item 124, and pull end cover, item 120, out of final housing, item 100.
2) Discard O-ring, item 123, and inspect planet hub stopper, item 126, and sungear stopper, item 122, for
excessive wear. Replace if planet hub stopper is less than .14 inch or if sungear stopper is less than .37 inch
thick.
3) Remove final planet hub assembly from final housing, item 100.
Winches with optional 'B' reduction ratio only:
3A) Inspect planet hub stopper, item 128, and replace if necessary.
4) Inspect three final planet gears, item 320, for damage or wear. If it is necessary to remove final planet gears,
remove circlip, item 311, and press planet pin, item 310, out of planet hub, item 300. Inspect needle bearing,
item 323, and two thrust washers, item 321, and replace if damaged.
5) Remove final sungear, item 340, from cable drum, item 500.
DISASSEMBLY OF PRIMARY DRIVE:
If primary drive requires service or repair, proceed as follows:
1) Turn winch over to sit flat on end of final housing, item 100.
2) Remove and discard oil seal, item 515.
3) Using a standard bearing puller, remove ball bearings, item 509, and bearing spacer, item 508.
4) Remove internal gear, item 430, and primary planet hub assembly from cable drum, item 500.
DAMAGED FRICTION OR DIVIDER PLATES WILL REDUCE BRAKING CAPACITY AND
ALLOW THE LOAD TO DROP, CAUSING PROPERTY DAMAGE, SEVERE INJURY OR DEATH.
SOLVENT MAY DAMAGE THE FRICTION PLATES. DO NOT USE SOLVENT TO CLEAN THE
FRICTION PLATES. PERFORM THOROUGH INSPECTION AND, IF NECESSARY,
REPLACE FRICTION AND DIVIDER PLATES AS A SET.
SERVICE INSTRUCTIONS
CONTINUED
