PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING CERTAIN REMAN CYLINDER PACKS SHORT BLOCKS IN DEALER PART STOCK Caterpillar


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PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING CERTAIN REMAN CYLINDER PACKS SHORT BLOCKS IN DEALER PART STOCK [UEBE1108]
SERVICE EQUIPMENT AND SUPPLIES
PARTS STOCK, ORDERING & RETURN
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING CERTAIN REMAN CYLINDER PACKS SHORT BLOCKS IN DEALER PART STOCK
UEBE1108-02

10Aug2020
(Revised 24Aug2020)


U-491
A-407
D-472
O-461

 

Parts stock action only

  
  

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING CERTAIN REMAN CYLINDER PACKS SHORT BLOCKS IN DEALER PART STOCK

7750 7751
PI70832
NOTE:

AVSpare’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to AVSpare.

NOTE:

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.

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 AVSpare product analyst.

 
NOTE:

This Revised Service Letter replaces the 10Aug2020 (Revised 12Aug2020) Service Letter. Changes have been made to the Problem.


TERMINATION DATE

30Nov2020

PROBLEM

Certain 20R8985, 20R8986, 20R8987, 20R8988, 20R2807, 20R2808, 20R2809, and 20R2810 Reman Cylinder Packs and certain 20R6235, 20R6236, and 20R6237 Reman Short Blocks built between 01 September 2019 and 24 August 2020 may have vertical scratches on the liner surface (Image 1).

ACTION REQUIRED

Inspect dealer part stock of the affected part number of Reman Cylinder Packs by removing the piston from the liner and inspect the piston for broken rings and for vertical scratches in the liner.

If broken ring(s) or vertical scratches in the liner are found remove the cylinder pack from dealer part stock.

If no broken rings or vertical scratches are found return the cylinder pack to dealer stock marked as inspected per this program.

---------- ========== ---------- ==========

Inspect dealer part stock of affected part number Reman Short Blocks by looking down each cylinder for vertical scratches. May require barring over the Short Block to see all liners.

If vertical scratches (Image 1) in the liner are found, remove and replace the cylinder pack. Repackage Short Block and return to dealer part stock as inspected per this program. Refer to KENR6052 for removal and installation of the cylinder pack.

If no vertical scratches are found return to dealer stock marked as inspected per this program.
Image1

SERVICE CLAIM ALLOWANCES

Submit one claim for all reman cylinder packs removed from dealer parts stock. For Reman Short Blocks only, 1 cylinder pack and 1 hour of labor will be allowed for removal and installation of each scratched cylinder liner found.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
 

Information System:

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