PRODUCT IMPROVEMENT PROGRAM FOR CHECKING AND RE-TIGHTENING THE SWING BEARING GEAR GROUP BOLTS ON CERTAIN 312D2 AND 318D2 EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR CHECKING AND RE-TIGHTENING THE SWING BEARING GEAR GROUP BOLTS ON CERTAIN 312D2 AND 318D2 EXCAVATORS

Usage:

TEBE4071-00

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24Feb2016

A-79

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Priority	PRODUCT IMPROVEMENT PROGRAM FOR CHECKING AND RE-TIGHTENING THE SWING BEARING GEAR GROUP BOLTS ON CERTAIN 312D2 AND 318D2 EXCAVATORS
7063		PI32609

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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 "PI32609" 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 "PI32609" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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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
31Aug2016	28Feb2017

PROBLEM

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The swing bearing gear group bolts need to be checked for the proper tightening specification and re-torqued as needed on certain 312D2 and 318D2 Excavators. All of the bearing gear group bolts need to be checked.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
312D 2L	FAB00191-00197, 199-249 MPP00159-00160, 259-282, 284-339, 341-347, 349-353, 355-362, 364-380, 382-384, 386-404, 406-408, 410-432, 434-457, 459-464, 466-471, 473-479, 481-486, 488-490, 492-539, 541-551, 553-569, 571-580

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*****Group 2*****
318D 2L	DPJ00160-00161 XAH00223, 225-229, 231-240, 242-267, 269-273, 275-283, 285-286, 288-290, 292-320

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Note: Before beginning the following Rework Procedure, please review and understand the Operation and Maintenance Manual for safety information and safe working practices before starting this Rework Procedure.

All of the swing bearing gear group bolts will need to be checked. Refer to Image1 and 2.

312D2 Machines - static bolt torque needs to be checked at 230 N.m.
318D2 machines - static bolt torque needs to be checked at 450 N.m.

Note: The swing bearing gear group bolts were torqued using torque turn process so please follow the above static torque settings during inspection. If an incorrect torque is found during the inspection, follow the tightening specification for the 312D2 UENR0196, or 318D2 UENR0198, Disassembly and Assembly manual. If any of the bolts are found loose, refer to Disassembly and Assembly, "Swing gear and Bearing - Remove and Install", for the torque process.

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Image1

Image2

OWNER NOTIFICATION

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

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 1*****
100%	100%	0%	0%	0%	0%

NOTE: This is a 2.0-hour job for Group 1
Note: 2.0 hours is allowed for the inspection Note: An additional 0.5 hours is allowed if the bolts are found loose.

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 2*****
100%	100%	0%	0%	0%	0%

NOTE: This is a 2.0-hour job for Group 2
Note: 2.0 hours is allowed for the inspection Note: An additional 0.5 hours is allowed if the bolts are found loose.

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.

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EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR CHECKING AND RETIGHTENING THE BEARING GEAR GROUP BOLTS

MODELS INVOLVED - CERTAIN 312D2 and 318D2 EXCAVATORS

Dear Cat Product Owner:

The bearing gear group bolts needs to be inspected on the products listed below. The existing bearing gear group bolts can be under tightened. 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 24Feb2016 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 24Feb2016 Service Letter