PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE CAM GEAR ON CERTAIN 3456 GENSETS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE CAM GEAR ON CERTAIN 3456 GENSETS

Usage:

SEBE8671-01

February 21, 2004
(Revised July 2004)
U-53
A-34
D-37
O-40

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE CAM GEAR ON CERTAIN 3456 GENSETS
1212		PI30612

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI30612" 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 "PI30612" 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.

NOTE: This Revised Service Letter replaces the February 21, 2004 Service Letter. Changes have been made to the Service Claim Allowances.

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COMPLETION DATE	TERMINATION DATE
August 31, 2004	February 28, 2005

PROBLEM

The cam gear needs to be reworked on certain 3456 Gensets. The helical gear train needs to be replaced with a spur gear train and a new redesigned cam gear.

AFFECTED PRODUCT

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Model	Identification Number
3456	9BZ1-399

PARTS NEEDED

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Qty	Part Number	Description
6	1A3203	BOLT
1	4N3661	GASKET-OIL
1	6N7654	SPACER
12	0S1585	BOLT
1	2W1733	SEAL AS
1	1499110	GEAR-OIL
1	1539023	GEAR
1	1669144	GASKET
1	1678130	DAMPER AS
1	1878979	GEAR AS
1	1878981	GEAR-CRANK
1	2273704	ADAPTER-DAMPER
1	2441640	GEAR GP-CAM
1	2483008	STUBSHAFT

ACTION REQUIRED

Refer to Special Instructions REHS2083.

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%	23.6	0	0	0	0
NOTE: This is a 23.6-hour job, including 10.7 hours for R&I and timing calibration, and 12.9 hours for the engine rework. 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)

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 CAM GEAR

MODELS INVOLVED - CERTAIN 3456 GENSETS

Dear Caterpillar Product Owner:

The cam gear needs to be reworked on the products listed below. The helical gear train needs to be replaced with a spur gear train and a new redesigned cam gear. 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 February 21, 2004 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 February 21, 2004 Service Letter