Product Improvement Program For Reworking The Lower Frame Top Ring On Certain M325C And M325D Material Handlers Caterpillar

Product Improvement Program For Reworking The Lower Frame Top Ring On Certain M325C And M325D Material Handlers

Usage:

REBE1270-00

Show/hide table

15Nov2006

U-739

A-706

O-720

Show/hide table

*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE LOWER FRAME TOP RING ON CERTAIN M325C AND M325D MATERIAL HANDLERS
7063		PI31187

Show/hide table

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31187" 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 "PI31187" 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

COMPLETION DATE	TERMINATION DATE
31May2007	30Nov2007

PROBLEM

Show/hide table

Cracks can appear in the 238-0075 Top Ring of the 238-0073 Frame on certain M325C and M325D Material Handlers. Cracks can initiate at toe of weld between the 234-2233 Ring and 238-0063 Plate.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
M325C MH	PAN00242-00277, 279, 282-283, 285-343 XJA00202-00292
M325D MH	EDF00229-00230, 232

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
42	1123929	BOLT

ACTION REQUIRED

Show/hide table

Grind weld toe to reduce stress raiser, using the following rework procedure.

Show/hide table

OWNER NOTIFICATION

Show/hide table

U.S. and Canadian owners will receive the attached Owner Notification.

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 9.0-hour job

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

COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - Product Improvement Program For Reworking The Lower Frame Top Ring

MODELS INVOLVED - M325C And M325D Material Handlers

Dear Caterpillar Product Owner:

Cracks can appear in the top ring of the frame on the products listed below. The weld toe needs to be reworked. You will not be charged for the service performed.

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

Please refer the dealer to their Service Letter dated 15Nov2006 when scheduling this service.

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

Caterpillar Inc.

Identification #(s)

Attached to 15Nov2006 Service Letter

Rework Procedure

Show/hide table

1. Position machine on flat ground.
Remove lower frame steps and tool boxes as needed for convenient access to swing ring. A lifting device could be required for handling steps/boxes.

2. Remove 7 112-3929 Bolts(image 1.2.1) and grind weld toe with small stone grinding cone (reference dimensions shown on image 1.2.2) to get smooth connecting radius (image 1.2.2). If "black spots" appear in the weld, grind until they disappear (image 1.2.3). Image 1.2.4 shows a good rework.

Image1.2.1

Image1.2.2

Image1.2.3

Image1.2.4

3. Use new 112-3929 Bolts and tighten to a torque of 900 +/- 100 Nm.

4. Repeat operations 2 and 3 all around ring (6 times).

5. Inspect ring and perform die penetrant test to identify possible cracks.
If a crack is found, please contact product support service engineer Christian M?hle (email: Muhle_Christian@cat.com, phone: +32 71 25 2559) for further instructions.
Repaint grinded area and re-install steps and tool boxes on lower frame.