PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SINGLE FUNCTION BOOM ON CERTAIN 525D WHEEL SKIDDERS, EQUIPPED WITH 367-1846 BOOM AND ARCH ARRANGEMENT Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SINGLE FUNCTION BOOM ON CERTAIN 525D WHEEL SKIDDERS, EQUIPPED WITH 367-1846 BOOM AND ARCH ARRANGEMENT

Usage:

TEBE5461-02

Show/hide table

08Feb2017

(Revised 28Jun2017)

U-78

A-51

Show/hide table

Priority	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SINGLE FUNCTION BOOM ON CERTAIN 525D WHEEL SKIDDERS, EQUIPPED WITH 367-1846 BOOM AND ARCH ARRANGEMENT
6302 6307		PI32730

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 as soon as possible. When reporting the repair, use "PI32730" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI32730" as the Part Number, "7751" as the Group Number, "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 08Feb2017 (Revised 15May2017) Service Letter. Changes have been made to the Affected Product.

Show/hide table

COMPLETION DATE	TERMINATION DATE
31Aug2017	28Feb2018

PROBLEM

Show/hide table

The single function boom needs to be reworked on certain 525D Wheel Skidders, equipped with 367-1846 Boom and Arch Arrangement. The existing boom can crack causing non-repairable failures to the boom.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
525D	2L500123-00124 GKP00111, 124, 126, 144, 148, 170, 176-177, 188, 207, 209, 218, 223, 229, 231, 242, 304, 312, 332, 339, 358-359, 385, 431-432, 440, 448, 469

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
1	4998524	PLATE
2	5174635	PLATE (Before Failure Only)
1	5183873	PLATE (After Failure Only)
2	5183874	PLATE (After Failure Only)
2	5183876	PLATE (After Failure Only)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 44% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

Show/hide table

Refer to attached Rework Procedure and M0075776, Special Instruction, "Rotator Opening Rework Procedure for the Single Function 425-5206 Boom Assembly on D-Series Wheel Skidders", for the rework instructions.

Show/hide table

OWNER NOTIFICATION

Show/hide table

Owners in the following countries will receive the attached Owner Notification:
US
Canada

SERVICE CLAIM ALLOWANCES

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

Show/hide table

NOTE: This is a 30.0-hour job
Note: A $300 US Dollars miscellaneous cost allowance is allowed for fabrication of the baffle plate assembly by the dealer.

Show/hide table

PARTS DISPOSITION

Show/hide table

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

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Show/hide table

EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SINGLE FUNCTION BOOM

MODELS INVOLVED - CERTAIN 525D WHEEL SKIDDERS, EQUIPPED WITH 367-1846 BOOM AND ARCH ARRANGEMENT

Dear Cat Product Owner:

The single function boom assembly needs to be reworked on the products listed below. The existing single function boom assembly can be deformed or crack. You will not be charged for the service performed.

Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 08Feb2017 when scheduling this service.

We regret the inconvenience this may cause you, and urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 08Feb2017 Service Letter

Rework Procedure

Show/hide table

Note: Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed. Refer to the Operation and Maintenance Manual "Safety Section".

Refer to the Service Manual if/as necessary.

1. Inspect the boom for cracks and warped plates. If any cracks have propagated into parent plates or warped the sides plates, submit a DSN-Product Health service request for additional rework information. Refer to Image1.1.1.

Note: Inspect the plates to ensure they are straight in areas where the arrows are pointing.

Image1.1.1

2. Inspect the fairlead assembly mount area of the boom for deformation.

- If the plate identified in Image1.2.1 is not deformed or can be readily straightened, weld in 517-4635 Plates according to Image1.2.2.

- If the plate is damage beyond the ability to straighten, refer to M0075776, Special Instruction, "Rotator Opening Rework Procedure for the Single Function 425-5206 Boom Assembly on D-Series Wheel Skidders", for the rework instructions.

NOTE: This instruction is shown for dual function arch but the repair procedure applies to the single function boom.

Image1.2.1

Image1.2.2

3. Prepare the boom for rework at the rotator end by removing the boom from the machine.

4. Remove 675mm of material from the 385-5025 Top Plate. Refer to Image1.3.1.

Image1.3.1

5. Create a new baffle plate using the dimensions in Image1.4.1. Then add round stock to the baffle plate according to Images1.4.2 and 1.4.3.

Image1.4.1

Image1.4.2

Image1.4.3

6. Locate the baffle plate assembly in the boom according to the dimensions in Image1.5.1.

7. Weld the baffle plate according to the weld information in Image1.5.2.

8. Weld the new 499-8524 Top Plate to the side plates with a 8mm filet weld / 1.5mm min penetration and to the end plate with a 6mm filet weld / 1.5mm min penetration.

9. Weld the new top plate to the existing top plate and baffle plate assembly by first applying 10mm groove weld then cover with 6mm bevel welds to fill the entire bevel. Refer to Image1.5.1.