811878 Mercruiser NUT

July 23, 2004
(Revised December 2004)
U-224
A-154
D-171
O-191
beforeorafter failure
PRODUCT SUPPORT PROGRAM FOR FLASHING NEWENGINE AND POWER TRAIN SOFTWARE ON CERTAIN 953C, 963C AND 973C TRACK TYPELOADERS
32257620 PS41643
This Program can be administered eitherbefore or after failure. In either case the decision whether to apply theProgram is made by the dealer. When reporting the repair, use "PS41643"as the Part number and "7755" as the Group Number. If administered beforefailure, use "56" as the Warranty Claim Description Code and use "T" asthe SIMS Description Code. If administered after failure, use "96" as theWarranty Claim Description Code and use "Z" as the SIMS Description Code. The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst. This Revised Service Letter replacesthe July 23, 2004 Service Letter. Changes have been made to the AffectedProduct. This Revised Service Letter replacesthe July 23, 2004 (Revised October 2004) Service Letter. Changes have beenmade to the Parts Needed list for Group 1 and Group 2.TERMINATION DATE
July 31, 2006PROBLEM
New engine, power train, and monitoring systemsoftware needs to be installed on certain 953C, 963C and 973C Track TypeLoaders. It will improve the performance of these machines, especiallywhen turning under a load or at high speed. The 953C and 963C turbo oilsupply line must be changed in conjunction with the new engine software.A 963C and 973C motor POR adjustment can be done at the same time. Thiswill also improve steering performance but it is independent of the softwarechanges. For more information see Service Magazine dated August 2, 2004(SEPD0745).AFFECTED PRODUCT
Model Identification Number
***** Group 1 *****
953C BBX1-989
***** Group 2 *****
963C BBD1-1166
***** Group 3 *****
973C BCP1-155PARTS NEEDED
***** Group 1 ? 953C *****
1 - 8C3446 Valve ? Sampling
1 - 8C6712 Elbow ? Seal
2 - 3J1907 Seal - O-ring
1 - 3J7354 Seal - O-ring
1 - 7S0530 Clip
1 - 6V1820 Bolt
2 - 6V5839 Washer
1 - 6V8397 Seal - O-ring
1 - 2Y5829 Nut
1 - 0338248 Clip
1 - 1266872 Tee- ORFS to ORP
1 - 1876294 Hose As. ? Oil Supply
1 - 2213494 Seal - O-ring
1 - 2520034 Software - EMS
1 - 2577148 Software - Engine
1 - 2591311 Software - Power Train
*1 ? 2419287 Film (parts only needed for BBX1-381)
*1 ? 3E0109 Plug (parts only needed for BBX1-381)***** Group 2 ? 963C *****
1 - 3J1907 Seal - O-ring
1 - 7S0530 Clip
1 - 6V1820 Bolt
2 - 6V5839 Washer
1 - 6V8397 Seal - O-ring
1 - 6V8724 Elbow face seal
1 - 2Y5829 Nut
1 - 0338248 Clip
1 - 1876294 Hose As. ? Oil Supply
1 - 2213494 Seal - O-ring
1 - 2520034 Software - EMS
1 - 2577149 Software - Engine
1 - 2591311 Software - Power Train
*1 ? 2419287 Film (parts only needed for BBD1-632)
*1 ? 3E0109 Plug (parts only needed for BBD1-632)***** Group 3 *****
1 - 2520034 Software - EMS
1 - 2577955 Software - Engine
1 - 2591311 Software - Power TrainACTION REQUIRED
See the attached Rework Procedure.SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
***** Group 1 *****
0-4000 100% 1 0 0 0 0
This is a 1?hour job to flash softwareand install the turbo lines group.
***** Group 2 *****
0-4000 100% 3 0 0 0 0
This is a 3?hour job to flash software,install turbo lines group and increase POR settings