PRODUCT SUPPORT PROGRAM FOR INSPECTION AND REPLACEMENT OF ALL THE SWING BEARING BOLTS (INNER AND OUTER) ON CERTAIN 320D AND 320D 2 EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTION AND REPLACEMENT OF ALL THE SWING BEARING BOLTS (INNER AND OUTER) ON CERTAIN 320D AND 320D 2 EXCAVATORS

Usage:

TEBE0715-01

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24Jan2014

(Revised 30Apr2014)

D-34

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSPECTION AND REPLACEMENT OF ALL THE SWING BEARING BOLTS (INNER AND OUTER) ON CERTAIN 320D AND 320D 2 EXCAVATORS
7063		PS44168

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NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS44168" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "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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NOTE:	This Revised Service Letter replaces the 24Jan2014 Service Letter. Changes have been made to the Affected Product, Parts Needed, Action Required, and the Rework Procedure.

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TERMINATION DATE

31Jan2015

PROBLEM

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The swing bearing inner and outer bolts do not have a correct clamping load with original torque of 568 +/- 59 N.m on certain 320D Excavators shipped from CIPL. If the problem is not detected early, the bolts and spacers may fall off. This could result in failure with significant repair cost.

AFFECTED PRODUCT

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Model	Identification Number
320D	JPD00142-00261
320D 2	DNP00252-00326

PARTS NEEDED

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Qty	Part Number	Description
40	7Y1863	SPACER
37	1719464	SPACER
40	4579304	BOLT-HEX HEAD
37	4579305	BOLT-HEX HEAD
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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Refer to the attached Rework Procedure.

Note: Bolt part numbers 457-9304 and 457-9305 should be sourced from India Distribution Center (IDC).

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SERVICE CLAIM ALLOWANCES

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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 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.0-hour job
1.0 hours is allowed for inspection of all the bolts. An additional 3.5 hours is allowed for replacement after inspection.

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PARTS DISPOSITION

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

Rework Procedure

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Tools Required:

- Manual Torque Wrench with the extension rod (range up to 600 N.m) with required socket.
- ECO Solvent (2 Liter/Machine for Swing and Drive Sprocket) - Degreasing/cleaning agent
- Squeeze Bottle
- Emery Paper ? 400 to 600 grit size
- Lint Free Cloth
- General Tool Kit

A. Inner Swing Bearing Bolts

1. Park the machine on a flat surface.

2. Number the existing inner swing bearing bolts starting from 1 to 40 in the same sequence. Refer to Image1.1.1.

Image1.1.1

3. Remove the 8T-0360 Bolts and 7Y-1863 Spacers from 1 to 10 - First Quadrant.

4. Clean the swing bearing threaded holes and base frame mounting holes using the Eco Solvent/Lint Free Cloth to free dirt, dust and grease/oil traces. Do not spray Eco solvent, use lint free cloth and wash the spacer in Eco solvent and then dry with cloth.

Caution:
Ensure the pre-coated bolts are free from dust and dirt. Do NOT clean the bolts with Eco solvent or with other degreasing agents. The bolts are already pre-coated.

5. Clean the painted surface of the spacer seating area using 400 to 600 fine grit Emery to fully remove the paint.

6. Assemble the new 457-9304 Bolt and new 7Y-1863 Spacers in the First Quadrant.

7. Tighten the new bolts to a specified torque of 120 N.m using a manual torque wrench.

8. Set the torque wrench to the target value of 530 N.m and mark and torque for all bolts.

9. Repeat Steps 4 to 8 for the bolts in the remaining quadrants using the following sequence:

3rd Quadrant ? Bolt No 21 to 30
2nd Quadrant ? Bolt No 11 to 20
4th Quadrant ? Bolt No 31 to 40

Note: Swing the upper frame for easy access to all bolts.

B. Outer Swing Bearing Bolts

1. Number the existing outer swing bearing bolts starting from 1 to 37 in the same sequence. Refer to Image1.2.1.

Image1.2.1

2. Remove the 8T-0362 Bolts and 171-9464 Washers from 1 to 10 - First Quadrant.

3. Clean the swing bearing holes and base frame mounting holes using the Eco Solvent/Lint Free Cloth to free dirt, dust and grease/oil traces. A squeeze bottle can be used for spray.

Caution:
Ensure the pre-coated bolts are free from dust and dirt. Do NOT clean the bolts with Eco solvent or with other degreasing agents. The bolts are already pre-coated.

4. Assemble the new 457-9305 Bolts and new 171-9464 Washers in the First Quadrant.

5. Tighten the new bolts to a specified torque of 120 N.m torque using a manual torque wrench.

6. Mark and tighten all the 37 bolts to a specified torque of 530 N.m.

7. Repeat Steps 3 to 6 for the bolts in the remaining quadrants using the following sequence:

3rd Quadrant ? Bolt No 21 to 30
2nd Quadrant ? Bolt No 11 to 20
4th Quadrant ? Bolt No 31 to 37

Note: Swing the upper frame for easy access to all bolts.