PRODUCT SUPPORT PROGRAM FOR NEW HOUSING MODULES NEED TO BE INSTALLED TO PREVENT LOOSING BEARING PRELOAD IN THE FINAL DRIVES ON CERTAIN 330C EXCAVATORS

Usage:

SEBE8676

February 27, 2004
D-42
O-44

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*After failure only*	PRODUCT SUPPORT PROGRAM FOR NEW HOUSING MODULES NEED TO BE INSTALLED TO PREVENT LOOSING BEARING PRELOAD IN THE FINAL DRIVES ON CERTAIN 330C EXCAVATORS
4050		PS50705

NOTE: This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS50705" as the Part number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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.

TERMINATION DATE

February 28, 2006

PROBLEM

New housing modules need to be installed to prevent loosing bearing preload in the final drives on certain 330C Excavators. The contact stress between 1964873 Bearing and 1994749 Stopper may cause stopper deformation, reduced bearing preload, stopper rotation and internal component damage. The modules provide a hardened stopper to eliminate deformation and dowels to positively anchor the stopper.

AFFECTED PRODUCT

***** GROUP 1 *****

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Model

Identification Number

330C

MKM296-299

CGZ103-273

JCD259-268

JNK186-202

JAB344-472

KDD131-351

GKX129-139

MCA153-228

330C L

CAP175-592

***** GROUP 2 *****

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Model

Identification Number

330C

MKM300-306

CGZ274-375

JCD269-275

JNK203-226

JAB473-541

KDD352-428

GKX140-152

MCA229-324

330C L

CAP593-844

PARTS NEEDED

1 ? 3F1547 Seal
1 - 2P3628 Seal - O-Ring
20 - 8T4167 Washer - Hard
16 - 7X2575 Bolt
1 ? 1U8846 Sealant
20 - 7Y5235 Bolt
1 ? 0951585 Seal ? O?Ring
2 ? 0951700 Seal ? O?Ring
1 ? 0957944 Cotter Pin
2 ? 1793428 Seal
1 ? 1994750 Carrier
1 - 2276112 Housing Kit

ACTION REQUIRED

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

***** GROUP 1 *****

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts	Labor Hrs	Parts	Labor Hrs	Parts	Labor Hrs
0-5000 / 0-60 months	100%	10	0	0	0	0
5001-8000 / 37-60 months	33 1/3%	6	0	0	50%	4
NOTE: This is a 10 hour job per final drive. This program provides parts and labor for a single failed drive. If during the repair, it is determined the other drive on the machine may also be at risk of eminent failure, the dealer can decide to rebuild both drives at the same time, in which case the parts and labor claim allowances can be doubled.

***** GROUP 2 *****

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts	Labor Hrs	Parts	Labor Hrs	Parts	Labor Hrs
0-5000 / 0-60 months	100%	9	0	0	0	0
5001-8000 / 37-60 months	33 1/3%	6	0	0	50%	3
NOTE: This is a 9 hour job per final drive. This program provides parts and labor for a single failed drive. If during the repair, it is determined the other drive on the machine may also be at risk of eminent failure, the dealer can decide to rebuild both drives at the same time, in which case the parts and labor claim allowances can be doubled.

PARTS DISPOSITION

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

Attach. (1-Rework Procedure)

Rework Procedure

The 2276112 Module utilizes 2276102 Dowels to positively anchor the 2276100 Stop. The stopper is hardened to eliminate deformation at the interface between the 2276100 Stopper and the 1964873 Bearing.