Usage:
NOTE: This Program can be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS40166" as the Part number and "7755" as the Group Number. If adminstered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If adminstered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Termination Date
March 31, 2001Problem
The slip rear drive shaft needs to be welded on certain 574 Forwarders. Welding the drive shaft will prevent the carrier bearings on the solid drive shaft from sliding out of its mounting brackets.
Affected Product
Model & Identification Number
574 (1FM216, 1FM218-225, 1FM227-258)
Parts Needed
No parts are needed for this program.
Action Required
See the attached weld procedure.
Service Claim Allowances
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.
- (1-Rework Procedure)
Procedure To Weld Rear Slip Shaft
Machine Preparation:
1. Lower the grapple onto the ground so the boom does not inhibit access to the rear frame.
2. Turn the parking brake and ladder switch ON. Stop the engine.
Rear Bogie Cover
Update Procedure:
1. Tip up the hinged cover over the rear bogies in order to access the rear slip drive shaft.
Cover Plate
2. Remove the cover plate in order to access the slip shaft's mounting flange.
3. Mark the orientation of the two halves of the rear slip shaft so the slip shaft can be reassembled with the same orientation.
Mounting Bolts
4. Remove the bolts that connect the solid rear drive shaft to the slip rear drive shaft.
5. Remove the bolts that connect the slip rear drive shaft to the differential.
6. Remove the rear slip shaft out through the hole where the cover plate was removed.
Spline Seals
7. Remove the internal shaft spline seal, and reassemble the splines back together with the two halves in the same phase as marked earlier in step 3.
8. Use a hammer to form the flange closer to the same diameter as the actual shaft, where the weld will be made (1-2 mm clearance is OK).
9. Set the distance from end flange to end flange at 504 mm, for welding.
NOTE: Confirm this distance by measuring the distance from the flange on the differential to the flange on the long solid rear drive shaft.
10. Weld 25-mm long sections around the shaft, with spacing of 25 mm between each weld. The weld should have an A3 (European) weld size.
NOTE: Most drive shaft shops can do this effectively.
11. Reinstall the solid driveshaft through the cover hole.
12. Reinstall the cover plates.
13. Test the machine for correct operation.