PRODUCT SUPPORT PROGRAM FOR WELDING THE LOADER FRAME TOWER THAT MAY CRACK ON CERTAIN 953C TRACK TYPE LOADERS
Usage:
SEBE7848-04
December 6, 2001
(Revised November, 2003)
U-330
A-229
AU-220
S-171
H-128
O-251
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| After failure only |
PRODUCT SUPPORT PROGRAM FOR WELDING THE LOADER FRAME TOWER THAT MAY CRACK ON CERTAIN 953C TRACK TYPE LOADERS |
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| 7054 |
PS50254
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NOTE: The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
NOTE: This Revised Service Letter replaces the December 6, 2001 (Revised December 2002) Service Letter. Changes have been made to the Termination Date and the Service Claims Allowances.
TERMINATION DATE
December 31, 2004PROBLEM
Welding of the loader frame tower that may crack on certain 953C Track Type Loaders. Cracking can occur at the weld toe that holds the inner boss of the loader frame tower to the inner vertical main plate of the loader frame tower.AFFECTED PRODUCT
953C 2ZN1-4868, 4871, 4878-4880, 4889, 4890, 4892PARTS NEEDED
ACTION REQUIRED
See the attached rework procedure.SERVICE CLAIM ALLOWANCES
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PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.Rework Procedure
Illustration 1
Illustration 2
Locate the plate(s) and weld around the entire perimeter of the weld according to the specifications shown in Illustration 2.
This repair should be made on both sides, regardless of whether or not both sides have actually failed.
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