PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE MAIN PUMP COUPLING ON CERTAIN M313C, M315C, M316C, M318C, AND M322C WHEELED HYDRAULIC EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE MAIN PUMP COUPLING ON CERTAIN M313C, M315C, M316C, M318C, AND M322C WHEELED HYDRAULIC EXCAVATORS

Usage:

SEBE9399-01

November 15, 2005
(Revised December 2005)
U-364
O-300

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE MAIN PUMP COUPLING ON CERTAIN M313C, M315C, M316C, M318C, AND M322C WHEELED HYDRAULIC EXCAVATORS
3252 5057 5062		PI30886

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI30886" 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 "PI30886" 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 November 15, 2005 Service Letter. Changes have been made to the Title.

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COMPLETION DATE	TERMINATION DATE
May 31, 2006	November 30, 2006

PROBLEM

A small population of M300C-series machines from Grenoble production may have incorrectly installed main pump couplings, and insufficient torque to the coupling bolts and hub bolt. If installed incorrectly the pinion teeth will not have full contact with the coupling, which will result in reduced life.

AFFECTED PRODUCT

****Group 1****

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Model	Identification Number
M313C	H2A256-259

****Group 2****

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Model	Identification Number
M315C	H2B195-196
M316C	H2C197-203, 205-207, 209-211
M318C	H2D259, 261, 263-280, 283-286, 288-289, 291 H2F128-129
M322C	H2E252-260, 262 H2G247

PARTS NEEDED

****Group 1****

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Qty	Part Number	Description
1	9S3263	COMPOUND
1	1021733	FLANGE-NYLON
1	1349371	HUB-COUPLING

****Group 2****

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Qty	Part Number	Description
1	9S3263	COMPOUND
1	1349682	HUB
1	1545558	FLANGE

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%	8.0	0	0	0	0
NOTE: This is a 8.0 hour job for both Group 1 and Group 2.

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 REPLACING THE MAIN PUMP

MODELS INVOLVED - CERTAIN M313C, M315C, M316C, M318C, AND M322C WHEELED HYDRAULIC EXCAVATORS

Dear Caterpillar Product Owner:

A new main pump needs to be installed on the products listed below. 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 November 15, 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 November 15, 2005 Service Letter

Rework Procedure

The main pump has to be disassembled from the engine and inspected to insure that the coupling and hub are installed correctly. If either part is installed incorrectly the coupling and hub need to be replaced.

Please refer to the correct Disassembly and Assembly Manual for the removing the Main Pump.

M313C (H2A) RENR9203

M315C (H2B) RENR9203

M316C (H2C) RENR9205

M318C (H2D & H2F) RENR9207

M322C (H2E & H2G) RENR9213

The coupling center has a raised side and a flat side. The flat side should be mounted towards the engine, and the raised side should be facing the pump on M313C machines. On M315C, M316C, M318C and M322C machines the flat side should be facing towards main pump and the raised side should be facing the engine. If it is found installed incorrectly the coupling and hub have to be replaced.

Use Thread lock on the bolts and torque to 49Nm. The bolts are shown in Illustration 1.