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PRODUCT SUPPORT PROGRAM FOR REPLACING THE UPPER SWING FRAME PIN ON CERTAIN 420E AND 430E BACKHOE LOADERS Caterpillar


PRODUCT SUPPORT PROGRAM FOR REPLACING THE UPPER SWING FRAME PIN ON CERTAIN 420E AND 430E BACKHOE LOADERS

Usage:

REBE4251-00

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18Nov2008


U-581
A-484
D-497
O-534

 
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Before/After
  
  

PRODUCT SUPPORT PROGRAM FOR REPLACING THE UPPER SWING FRAME PIN ON CERTAIN 420E AND 430E BACKHOE LOADERS
6506
PS42835
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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 "PS42835" 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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TERMINATION DATE
30Nov2010

PROBLEM

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The existing upper swing frame pin can fail due to excessive wear because of the lack of lubrication between the pin and the swing frame bearing on certain 420E and 430E Backhoe Loaders. If the pin plugs and fails to allow proper lubrication, the pin can prematurely wear.

AFFECTED PRODUCT

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Model Identification Number
*******Group  1*******
420E HLS00210-08202

KMW00150-03219
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*******Group  2*******
430E DDT00220-00900

EAT00230-01449

PARTS NEEDED

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Qty

 Part Number Description
*******Group 1*******
2 3B8486 FITTING-HYD
1 6V7687 LOCKNUT
2 8T4821 WASHER-PLATED
1 8T6868 BOLT
2 9R8291 SPACER
2 1367440 SHIM
2 1760626 WASHER
1 2500741 LUG
1 3305854 PIN AS
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.
*******Group 2*******
2 3B8486 FITTING-HYD
2 6V7687 LOCKNUT
2 8T4821 WASHER-PLATED
1 8T6868 BOLT
2 9R8291 SPACER
2 1367440 SHIM
2 1760626 WASHER
1 2500741 LUG
1 3305854 PIN AS
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 attached rework procedure.
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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 1*******
0-2500 hrs,
0-24 mo 
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
2501-5000 hrs,
25-48 mo 
33.0%
50.0%
0.0%
0.0%
50.0%
50.0%
 NOTE: This is a 2.0-hour job for Group 1

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Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 2*******
0-2500 hrs,
0-24 mo 
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
2501-5000 hrs,
25-48 mo 
33.0%
50.0%
0.0%
0.0%
50.0%
50.0%
 NOTE: This is a 2.0-hour job for Group 2



PARTS DISPOSITION

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


Rework Procedure


 
1) Stretch out the boom and stick to place the rear bucket on the ground.
 
2) Lower the rear stabilizers to the ground.
 
3) Install the swing frame lock pin. This will keep the bores of the swing frame and the main frame aligned.
 
4) Remove the 290-8156 Upper Swing Frame Pin.
 
5) Install the two 3B-8486 Fittings into the new pin. Orient the fittings to allow space for connecting the grease gun.
 
6) Install the new pin and use the following procedures to properly shim the swing frame and pin.
 
a) Use 176-0626 Washers and 9R-8291 Spacers in order to obtain a maximum gap of 1.0 mm (0.04 inch). Refer to Image 1.7.1.
Image1.7.1
 
b) Use 136-7440 Shims in order to achieve the tolerances between the pin and the surface of the casting. The tolerances are specified in Image 1.8.1.
Image1.8.1
 
 

Caterpillar Information System:

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