SHAFT 1223214 - Caterpillar

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Install the new Lip-Seal into the bore in the outboard side of the Bearing-Cover:
+ New Lip faces outboard. DO NOT touch or deform the lip material!
+ Use the larger dia face of the Driver to press against the Lip-seal Housing OD.
+ Drive the Lip-Seal housing into the bore as straight as possible - for best results a small arbor press should be used if available. Inspect to insure the Lip-Seal housing is seated against the backface of the Bearing-Cover all the way around, and the Lip-Seal is not cocked in the bore.
Install new 5P-2545 O-Ring in inboard side Bearing-Cover ? use CAT Hi-Speed Ball-Bearing Grease or O-Ring Retaining Compound to hold O-Ring in groove.
Degrease and dry mating surface of Bearing-Cover, between O-Ring groove (if applicable) and OD of Cover.
Apply a bead of Loctite Flexible Anaerobic Gasket Sealant and spread out to fully cover the above mating surface ? insure the sealant covers the critical area between bolt clearance holes and OD of Bearing-Cover. DO NOT allow any anaerobic sealant to get on O-Ring or Lip-Seal.
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Place Bearing-Cover on the four Guide-Bolts installed into the Motor.
Carefully support and guide straight the Bearing-Cover over Splines and Wear-Sleeve on Shaft until Bearing-Cover contacts Bearing-Retainer ? minimize contact between Lip and Splines and deformation of Lip-Seal. Insure the O-Ring in back of the Bearing-Cover does not come out of the groove during installation. Once the Lip has been compressed by mounting on the Wear-Sleeve, the Lip Seal cannot be removed and then reused.
Install 191-2845 O-Ring Washers on seven (3E 6910) M12 Bolts and apply hi-strength threadlock (red) to threads.
Install three Bolts snug.
Remove the four Guide-Studs and install remaining four M12 Bolts.
Tighten all seven M12 Bolts in a cross pattern to a torque of 83 Nm.
Empty & reinstall Grease Reservoir if not previously done.
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If this is a before failure service claim, this completes the repair. If this is an after failure service claim, install the final drive, brake, and wheel group.
Refer to KENR8715. All of the 147-0169 Bolts need to be replaced when installing this assembly.
Group Number 2
Machines in Group 2 need to have the lip seals and wear sleeves updated and need to move the motor breathers from the axle housing to the frame. Machines in this group should not use an O-Ring behind the bearing cover.
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The rework procedure for motors in this group is identical to the procedure in Group 1 except for a few minor differences. There is no O-ring on the back of the bearing cover and the sealant can be applied without worrying about the O-ring. There are no washers used on the bolts to attach the bearing cover to the bearing retainer. The M12 bolts used to attached the cover to the retainer are 101-7402.
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Machines in Group 2 also need to move the breathers from the axle housing to the frame. Unlike machines in Group 1, machines in Group 2 already have 2 breathers installed on the axle housing. Machines in Group 2 need to install two 145-4496