PRODUCT SUPPORT PROGRAM FOR ADJUSTING THE BOOM LINES GROUP ON CERTAIN 336D, 336DL, AND 340DL EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR ADJUSTING THE BOOM LINES GROUP ON CERTAIN 336D, 336DL, AND 340DL EXCAVATORS

Usage:

REBE8432-00

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05Jun2012

D-258

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR ADJUSTING THE BOOM LINES GROUP ON CERTAIN 336D, 336DL, AND 340DL EXCAVATORS
5057		PS43617

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NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS43617" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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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.

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TERMINATION DATE

30Jun2014

PROBLEM

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The location of the 296-7325 and 317-4882 Tube Assemblies of the boom lines group was not properly adjusted in the factory on certain Excavators. The improper location of the tube assemblies may tighten the hoses to the stick cylinder.

AFFECTED PRODUCT

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Model	Identification Number
336D	JBT03931-03973, 3975, 3979, 3992-4028, 4068-4087
340D L	JTN00220, 222-225, 227, 231-239, 247-249

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Adjust the position of the tube assemblies per the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-4000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 4.0-hour job

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PARTS DISPOSITION

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

Rework Procedure

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1. Put the machine in the servicing position. Refer to Image1.1.1.

Image1.1.1

2. Before the Rework Procedure, release the hydraulic oil system pressure. Refer to RENR8648, Disassembly and Assembly, "Hydraulic System Pressure - Release".

3. Disconnect the tubes and hoses for stick cylinder lines group. Refer to Image1.2.1.

Image1.2.1

4. Loosen the clamp bolts at location A, B, and C. Refer to Image1.3.1.

Image1.3.1

5. Adjust the distance between the boss tube and the end surface of the tube assemblies to 250mm - 255mm. Refer to Image1.4.1

Image1.4.1

L: Distance from boss tube to the end surface of the tube, 250mm - 255mm required.

Refer to Image1.5.1 for an example.

Image1.5.1

Note: Protect the grommet from being damaged when moving the tubes.

6. Tighten the clamp bolts at locations A, B, and C. These clamp bolts were loosened in Step 3. Keep the grommet open direction the same with clamp, refer to Image1.6.1. Tighten to a specified torque of 240 +/- 40 N.m.