PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING THE LOWER SWING FRAME PIN NUT ON CERTAIN 416E, 420E AND 430E BACKHOE LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING THE LOWER SWING FRAME PIN NUT ON CERTAIN 416E, 420E AND 430E BACKHOE LOADERS [REBE2830]

FRAME AND BODY

FRAME GP

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING THE LOWER SWING FRAME PIN NUT ON CERTAIN 416E, 420E AND 430E BACKHOE LOADERS

REBE2830-00

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16Oct2007

U-522

A-427

D-419

O-450

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING THE LOWER SWING FRAME PIN NUT ON CERTAIN 416E, 420E AND 430E BACKHOE LOADERS
6506		PS42534

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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 "PS42534" 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 AVSpare product analyst.

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TERMINATION DATE

31Oct2009

PROBLEM

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The existing nut on the lower swing frame pin can come loose on certain 416E, 420E and 430E Backhoe Loaders. If the existing nut is not tightened to the correct torque, it can loosen and cause excessive movement of the swing frame.

AFFECTED PRODUCT

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Model	Identification Number
416E	SHA02256-02563, 2566-2569, 2571-2574, 2576, 2595, 2608, 2616-2617, 2619-2661
420E	HLS03646-04155, 4157-4159, 4161-4173, 4175, 4178-4183, 4185, 4189, 4194, 4196-4199, 4202-4203, 4206, 4246, 4248, 4263-4290 KMW01566-01652, 1654-1688, 1690, 1692-1693, 1707-1758
430E	DDT00510-00550, 556-595 EAT00815-00903, 905-907, 916, 923-930

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Refer to the attached Rework Procedure. Also, reference Disassembly and Assembly Manual, RENR6485, "Swing Frame-Install".

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Image1

SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
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%

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NOTE: This is a 2.0-hour job

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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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Tighten the lower swing frame pin nut to a torque of 1250 +/- 135 N.m (922 +/- 100 lb ft). Place the rear implements in the position shown below in Image 1.1.1 to apply torque to the nut.
NOTE: The swing frame lock pin must be installed when applying torque to the nut.

Image1.1.1

Cycle the swing cylinders 10 times with the backhoe positioned as shown in Image 1.2.1. Cycle the swing cylinders without hitting the frame with the swing casting.

Image1.2.1

Cycle the stick cylinder 10 times with the backhoe positioned as shown in Image 1.3.1.

Image1.3.1

Cycle the boom cylinder 10 times with the backhoe positioned as shown in Image 1.4.1. Cycle the boom cylinder through the snubber when raising the boom.

Image1.4.1

Re-tighten the lower swing frame pin nut to a torque of 1250 +/- 135 N.m (922 +/- 100 lb ft). Place the rear implements in the position shown below in Image 1.1.1 to apply torque to the nut.
NOTE: The swing frame lock pin must be installed when applying torque to the nut.