WRENCH TORQUE 9U5019 - Caterpillar

19Dec2011
U-565
A-462
D-492
O-497
Parts stock action only
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING CERTAIN 284-5368, 284-5370, AND 284-5372 RECEIVER ASSEMBLIES
7750 PI70409
When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the Description Code.
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.
TERMINATION DATE
31Mar2012
PROBLEM
The existing 284-5368, 284-5370, and 284-5372 Receiver Assembly poppets can become stuck or crack in operation.
ACTION REQUIRED
Inspect the 284-5368, 284-5370, and 284-5372 Receiver Assemblies in dealer parts stock. Use the attached Rework Procedure to inspect and sort the receiver assemblies in inventory.
SERVICE CLAIM ALLOWANCES
Submit one claim for all parts removed from dealer parts stock.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
All 284-5368, 284-5370 and 284-5372 Receiver Assemblies need to be inspected and sorted in order to determine which material the poppet was manufactured with. The receivers with the small dipole should be scrapped or returned to the supplier.
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