PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND ADJUSTING THE CARRIER ROLLER WHICH MAY BE MISALIGNED ON CERTAIN 365B L, 365B L SERIES II, 385B, 385B L, AND 5090B EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND ADJUSTING THE CARRIER ROLLER WHICH MAY BE MISALIGNED ON CERTAIN 365B L, 365B L SERIES II, 385B, 385B L, AND 5090B EXCAVATORS

Usage:

SEBE9112

March 16, 2005
U-88
A-68
D-75
O-77

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND ADJUSTING THE CARRIER ROLLER WHICH MAY BE MISALIGNED ON CERTAIN 365B L, 365B L SERIES II, 385B, 385B L, AND 5090B EXCAVATORS
4154		PI30781

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI30781" 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 "PI30781" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS 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 Caterpillar product analyst.

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COMPLETION DATE	TERMINATION DATE
September 30, 2005	March 31, 2006

PROBLEM

The six carrier rollers may have been wrongly assembled on certain 365B L, 365B L SERIES II, 385B, 385B L, and 5090B Excavators. The carrier rollers on the machines must be check to ensure the 3 carrier rollers on each track are well aligned.

AFFECTED PRODUCT

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Model	Identification Number
365B L Series II	JMB496-557 DER216-263
365B L SERIES II Front Shovel	PEG117-00122
365B L Series II MH	SDL116-119
385B	CLS259-277 RCD219-276
385B L	FDL242-282
5090B	CLD348-350

PARTS NEEDED

There are no parts needed for this program.

ACTION REQUIRED

See the attached Rework Procedure.

OWNER NOTIFICATION

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

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts	Labor Hrs.	Parts	Labor Hrs.	Parts	Labor Hrs.
100%	3.0	0	0	0	0
NOTE: This is a 3.0- hour job. NOTE: U.S. and Canadian Dealers Only - Eligible dealers may enter a Type 2 SIMS Report

PARTS DISPOSITION

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

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

Attach. (1-Owner Notification)
(2-Rework Procedure)

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

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND ADJUSTING THE CARRIER ROLLER WHICH MAY BE MISALIGNED

MODELS INVOLVED - 365B L, 365B L SERIES II, 385B, 385B L, AND 5090B EXCAVATORS

Dear Caterpillar Product Owner:

The carrier rollers need to be inspected for misalignment. If any carrier roller is misaligned, the carrier roller needs to be adjusted. 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 March 16, 2005 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 March 16, 2005 Service Letter

Rework Procedure

Illustration 1 ? Location of the carrier rollers

Check the 3 carrier rollers on the left track and the 3 carrier rollers on right track. Refer to Illustration 1 to see the location of the carrier roller.

Illustration 2

Make a visual inspection of the six carrier rollers (ref 242-4066).
If any of the 6 carrier rollers is suffering from leaks or excessive wear, the carrier roller should be replaced. Refer to Disassembly & Assembly Manual RENR1970-05, "Track Carrier Roller ? Remove" and "Track Carrier Roller ? Install".
If any of the 6 carrier rollers are misaligned, loosen the carrier roller. Refer to Disassembly & Assembly Manual RENR1970, "Track Carrier Roller ? Remove" section.
Set the lateral clearance between the carrier roller and the bracket to 21 +/- 1 mm as shown on Illustration 2.
Tighten the bolt fixing the carrier roller (ref 7X-2584 M30) to 1000 +/- 125 Nm.
When all six of the carrier rollers are installed according to the location showed on picture 2, make a visual inspection to ensure the carrier rollers are well aligned with the sprocket and the idler.