PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE ANGLE CYLINDERS ON CERTAIN D6N TRACK-TYPE TRACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE ANGLE CYLINDERS ON CERTAIN D6N TRACK-TYPE TRACTORS

Usage:

REBE2934-00

Show/hide table

03Jan2008

U-6

O-3

Show/hide table

*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE ANGLE CYLINDERS ON CERTAIN D6N TRACK-TYPE TRACTORS
5101 6060		PI31424

Show/hide table

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31424" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31424" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Show/hide table

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.

Show/hide table

COMPLETION DATE	TERMINATION DATE
31Jul2008	31Jan2009

PROBLEM

Show/hide table

The bracket on the blade assembly where the angle cylinder is connected may interfere with the angle cylinder tube cap when the blade is fully angled and tilted on certain D6N Track-Type Tractors. As a result, the angle cylinder may fail.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
D6N LGP	DJY00622, 642, 645, 665, 683, 685-686, 688, 690-739, 741-743, 748-752, 754-756, 758-779, 781, 783-812
D6N XL	DJA00515, 533, 544-564, 566-570, 572, 574, 576-579, 581-616

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
1	5P0960	GREASE-A3M
1	7X7861	OIL
2	3217044	ROD AS.
In Order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 40% 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

Show/hide table

Refer to the attached Rework Procedure.

Show/hide table

OWNER NOTIFICATION

Show/hide table

U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

Show/hide table

NOTE: This is a 6.0-hour job

Show/hide table

PARTS DISPOSITION

Show/hide table

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

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Show/hide table

COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE ANGLE CYLINDERS

MODELS INVOLVED - D6N Track-Type Tractors

Dear Caterpillar Product Owner:

The bracket on the blade assembly where the angle cylinder is connected may interfere with the angle cylinder tube cap when the blade is fully angled and tilted on the products listed below. As a result, the angle cylinder may fail. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 03Jan2008 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 03Jan2008 Service Letter

Rework Procedure

Show/hide table

1. Remove the guard from the angle cylinder on both sides and notice the part reference stamped on the cylinder.
a. If the part reference is 228-0320 ?01, no reparation is required. Install the guard on to the angle cylinder.
b. If the part reference is 228-0320 ?05, go to the next step.

NOTE: If cylinder change level is not visible enough to verify cylinder version, close the inspected cylinder by angling the blade and measure the pin to pin distance. If the distance is 834 mm, no repair is required. Install the guard on the angle cylinder. If the distance is 825 mm, go to next step.

2. Remove the angle cylinder. Refer to the Service Manual, Disassembly and Assembly, KENR5141, "Bulldozer Angle Cylinder (VPAT) - Remove and Install".
3. Diassemble the cylinder and replace the existing rod assembly with the new 321-7044 Rod Assembly. Refer to cylinder disassembly and assembly information in KENR5141.
4. Grind the bracket assembly on the blade, both sides, to remove 3mm of material. Refer to Image 1.
5. Install the angle cylinder on the machine. Refer to the installation procedure in KENR5141.
6. Install the guard on the angle cylinder.
7. Start the engine, lift the blade from the ground and angle the blade to both sides to refill the hydraulic circuit.
8. Fully angle and tilt the blade and check if enough clearance between the angle cylinders and the brackets.
9. Check the hydraulic oil level and refill the hydraulic system with required quantity of hydraulic oil.