PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK ON CERTAIN 336D, 336D L, 340D L EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK ON CERTAIN 336D, 336D L, 340D L EXCAVATORS

Usage:

TEBE0759-01

Show/hide table

25Feb2014

(Revised 12May2015)

U-105

A-76

D-95

O-91

Show/hide table

Before/After	PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK ON CERTAIN 336D, 336D L, 340D L EXCAVATORS
6502		PS44199

Show/hide table

NOTE:

Caterpillar’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 Caterpillar.

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 "PS44199" 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.

Show/hide table

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.

Show/hide table


NOTE:	This Revised Service Letter replaces the 25Feb2014 Service Letter. Changes have been made to the Affected Product.

Show/hide table

TERMINATION DATE

29Feb2016

PROBLEM

Show/hide table

The existing stick may experience a crack around PT4 boss weld toe area on certain 336D, 336D L, and 340D L Excavators.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
336D	JBT00260-04908
336D 2	WDC00101-00302
336D 2GC	NBN00101-00141
336D 2L	YCF00251-00595, 598-600, 602, 604, 606
336D L	MPL00278-00577
340D 2L	HHK00131-00358, 360, 362, 364, 366
340D L	JTN00130-00585

PARTS NEEDED

Show/hide table

No parts needed for this program

ACTION REQUIRED

Show/hide table

If stick cracking occurs, refer to REHS3344, Special Instruction, "Procedure for the Repair of Cracks on Reach Sticks for Certain Excavators", for the Rework Procedure.

If the butt weld on PT4 boss is beyond height specification during inspection or after welding repair, please follow grinding procedure to remove the surplus height of seam.

IMPORTANT: If the stick is weld repaired, please attach pictures of the failed stick including stick serial number, actual operation hours, and the cracking position when submitting the warranty claim.

Show/hide table

SERVICE CLAIM ALLOWANCES

Show/hide table

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%
0-6000 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-8000 hrs, 37-48 mo	100.0%	50.0%	0.0%	0.0%	0.0%	50.0%

Show/hide table

NOTE: This is a 8.0-hour job
If the rework is to be performed before crack at PT4, 8.0 hours labor can be claimed. An additional 32.0 hours of labor will be allowed if the stick cracked at PT4.

Show/hide table

PARTS DISPOSITION

Show/hide table

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

Rework Procedure

Show/hide table

General Grinding Procedure for eliminating the welding surface at high stress concentration area.

Refer to RENR8648, Disassembly and Assembly, the removal and installation procedure for the stick group, for 336D and 340D Machines.

1. To facilitate access to the inspection area, place the stick in the extended position.

Refer to Image1.1.1.

Image1.1.1

2. Use a weld gauge in order to measure PT4 boss butt weld. Refer to Image1.2.1.

Image1.2.1

3. If the measurement result is beyond 4mm, refer to Step 4 - 5 in order to remove the surplus height of seam.

4. Use a grinder in order to eliminate original both sides of the PT4 boss butt weld until parallel with base metal. Refer to weld seam grinding area in Image1.3.1 and 1.3.2.

Image1.3.1

Image1.3.2

Note A: Ensure that the weld surface is smooth. In the case that the surface is too rough, buff grinding will be necessary.

Note B: Do NOT damage the base metal when grinding the original weld seam.

Note C: Needle peen the repaired area in order to maximize structure life.

5. Use Cat authorized paint for painting the welds.