PAGE 22
SERVICE INSTRUCTIONS CONTINUED
8) REMOVAL OF DRUM SEAL (item 531):
8.1) Remove Circlip item 344 from Final Sungear item 340, or from Coupling item 341, if present.
8.2) Remove 18 Capscrews item 551, along with Lockwashers item 553, from Secondary Housing
item 456, to separate Base item 550, from Secondary Housing.
8.3) Pull Secondary Housing item 456, out of Cable Drum item 500, along with Coupling item
341, if present.
8.4) Check thicknees of Sungear Stopper item 122 for excessive wear. Replace if less than 0.44
thick.
8.5) Remove Retaining Ring item 532 and pull Oil Seal item 531, out of Cable Drum item 500.
9) DISASSEMBLY OF FINAL DRIVE:
9.1) Remove 12 Capscrews item 537, along with 12 Lockwashers item 541, from End Cover item
120.
9.2) Remove End Cover item 120, from End Housing item 100 and discard O-ring item 123.
9.3) Check thickness of Planet Hub Stopper item 126 and Sungear Stopper item 122, for excessive
wear. Replace Planet Hub Stopper if less than 0.25 inch thick and Sungear Stopper if less than
0.44 inch thick.
9.4) Insert eye-bolts in 3/4 - 10 UNC Puller holes and remove Final Planet Hub Assembly item 349,
from Final Housing item 100.
9.5) Pull Final Sungear item 340, out of Cable Drum item 500. (1"-8 UNC puller holes are provided
on both ends of the shaft).
FOR WIDE DRUMS ONLY:
NOTE: Tapered pin item 342, is installed on the end of Sungear item 340 with Setscrew item 343, to
facilitate reassembly of the sungear if installation is from the Final Drive end.
10) REMOVAL OF DRUM SEAL (item 106):
10.1) Remove 18 Capscrews item 551, along with Lockwashers item 553 and remove Final Housing item
100, with Cable Drum item 500, from Base item 550.
10.2) To separate Final Housing item 100, and Cable Drum item 500, first remove Circlip item 513 and
press the Cable Drum through the Spherical Roller Bearing item 103. Two 1-8 UNC holes inside
the final housing are provided for installation of a "strong back" and hydraulic jack to facilitate this
operation.
354 REV.030819
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