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HOSE AS 2277811 - Caterpillar



2277811 HOSE AS Caterpillar parts HOSE
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21
Alternative (cross code) number:
CA2277811
227-7811
2277811
Caterpillar 2277811 HOSE AS

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Information:

April 30, 2005
(Revised July 2006)
U-133
A-98
D-111
O-113
Afterfailure only PRODUCT SUPPORT PROGRAMFOR REPLACING THE SECOND REDUCTION FINAL DRIVE BEARINGS ON CERTAIN 784B,784C, 785, 785B, 785C, 789, 789B, AND 789C OFF-HIGHWAY TRUCKS
40504201 PS50973
This Program can only be administeredafter a failure occurs. The decision whether to apply the Program is madeby the dealer. When reporting the repair, use "PS50973" as the Part numberand "7755" as the Group Number. Use "96" as the Warranty Claim DescriptionCode 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 April 30, 2005 (Revised August 2005) Service Letter. Changes have beenmade to the Termination Date, Problem, Affected Product, Parts Needed,and Action Required.TERMINATION DATE
June 30, 2008 PROBLEM
The 248-2325 Bearings may fail prematurely inthe second reduction of the final drives of certain 784B, 784C, 785, 785B,785C, 789, 789B, and 789C Off-Highway Trucks. The failures will exhibitmicrowelding which will progress to spalling.The magnetic plugs in the final drives mayshow signs of metal generation or the final drive SOS results for ironlevels may be at 150 parts or above indicating that a failure is in theprocess of occurring and rework is required.AFFECTED PRODUCT
Model Identification Number
784B 5RK00001-Up
784C 2PZ00106
785 8GB00001-Up
785B 6HK00001-Up
785C 1HW00001-Up
785C APX00001-850
785C 5AZ00001-Up
789 9ZC00001-Up
789B 7EK00001-Up
789C 2BW00001-1020PARTS NEEDED
Quantity Part Number Description
8 284-1472 BEARING-SPLACTION REQUIRED
Check magnetic plugs for signs of metal generation.Also review final drive SOS results for iron levels of 150 parts or above.If either indicates a failure remove the carrierand inspect the second reduction final drive bearings. It is only necessaryto remove the carrier.Replace the existing 248-2325 Bearings withnew 284-1472 Bearings.Filter the oil using a kidney loop as needed.SERVICE CLAIM ALLOWANCES
Product smu/age whichevercomes first Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
0-6000 Hours0-Up Months 100% 12 0 0 0 0
6000-12,000 Hours0-Up Months 33.3% 6 0 0 50% 6
This is a 12-hour job per final drive.
If there has been a previous repairpart age will apply. Retain a copy of the previous repair invoice in thedealer's records for audit purposes, and specify repair date and machinehours in the "Additional Comments" section of the warranty claim.PARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.


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