PAGE 15
7) Remove four friction plates, item 715, together with five 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 plates
should be intact and grooved. If any damage is detected, replace friction and divider plates as a set.
8) Remove brake spacer, item 712.
9) 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.
DISASSEMBLY OF PRIMARY DRIVE
If primary drive requires service or repair, disassemble as follows:
1) Remove pipe plug, item 503, from cable drum, item 500, to drain lubricating oil from winch interior.
2) Remove eight capscrews, item 971, and lockwashers, item 973. Remove two tie bars, item 970. Stand winch
upright on its end housing.
3) Remove six capscrews, item 537, and lockwashers, item 541, through access opening in brake housing. Lift
brake housing with bearing flange assembly out of cable drum, item 500. Remove and discard O-ring, item 539.
4) Pull bearing flange, item 530, and ball bearing, item 533, off of brake housing, item 700.
5) Remove circlip, item 535. Push ball bearing, item 533, out of bearing flange. Inspect and replace if damged.
6) Remove and discard oil seal, item 531.
7) Inspect planet hub stopper, item 704, for damge or wear and replace if less than 0.13 inch thick.
8) Remove primary sungear, item 440.
9) Remove primary planet hub assembly from cable drum.
10) Inspect planet hub stopper, item 402, for damage or wear and replace if less than 0.13 inch thick.
11) Inspect three primary planet gears, item 420, for damage or wear. If it is necessary to remove planet gears,
remove circlip, item 411, and press planet pin, item 410, out of planet hub, item 400. Inspect needle bearing,
item 423, and two thrust washers, item 421, and replace if damaged or worn.
12) Remove final sungear, item 340, with circlip, item 341, and sungear stopper, item 344. Inspect stopper for
damage or wear. If stopper protrudes less than .03 inch from sungear, stopper should be replaced.
271 REV.970407
SERVICE INSTRUCTIONS CONTINUED
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
REPLACE FRICTION AND DIVIDER PLATES AS A SET.
DANGER
To Next Page
Loading...
