PRODUCT SUPPORT PROGRAM FOR REPLACING THE SERVICE BRAKE PEDAL VALVE THAT MAY BE NOISY ON CERTAIN 966G AND 972G WHEEL LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE SERVICE BRAKE PEDAL VALVE THAT MAY BE NOISY ON CERTAIN 966G AND 972G WHEEL LOADERS

Usage:

SEBE7886-01

January 9, 2002
(Revised February 2002)
U-8
A-7
AU-2
S-2
H-2
O-10

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*After failure only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE SERVICE BRAKE PEDAL VALVE THAT MAY BE NOISY ON CERTAIN 966G AND 972G WHEEL LOADERS
4265		PS50387

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 "PS50387" 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.

NOTE: This Revised Service Letter replaces the January 9, 2002 Service Letter. Changes have been made to the Affected Product.

TERMINATION DATE

January 31, 2003

PROBLEM

The service brake pedal valve may be noisy and needs to be replaced on certain 966G and 972G Wheel Loaders. The service brake pedal valve may make a loud noise during the application of the service brakes. Unlike normal oil flow noise or a noise that can be corrected by purging any air from the brake lines, this is a very loud squawk noise from the 1693504 or 2013199 Service Brake Pedal Valve.

AFFECTED PRODUCT

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Model	Identification Number
966G	3SW859-1444 3PW822-Up 9RS1068-Up 3ZS507-767 8XW391-811 AAH360-516
972G	7LS318-438 1EW523-Up 4WW552-780 AAW208-401 6AW353-Up 9GW307-518
966G-II	AXJ1-453 AWY1-303
972G-II	AXC1-488 AXN1-232

PARTS NEEDED

2 - 3J1907 Seal - O-Ring
5 - 3K0360 Seal - O-Ring
2 - 6V8398 Seal - O-Ring
2 - 1268306 Tee
1 - 2105587 Valve Group - Brake

ACTION REQUIRED

Replace the 1693504 or 2013199 Service Brake Pedal Valve with a 2105587 valve. Replace the two 1702453 Tee - Orifice at the valve output ports with two 1268306 Tee - Standard. Purge any air in the lines by bleeding all four service brakes. Check the valve for full release. Calibrate integrated braking system (IBS) if equipped with IBS.

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
0-4000 / 0-24 mo	100%	1	0	0	0	0
4001-6000 / 25-36 mo	33 1/3%	0.5	0	0	50%	0.5
NOTE: This is a 1?hour job.

PARTS DISPOSITION

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

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