PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE TO HOUSING JOINT BOLTS ON CERTAIN 836K LANDFILL COMPACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE TO HOUSING JOINT BOLTS ON CERTAIN 836K LANDFILL COMPACTORS

Usage:

TEBE8681-00

Show/hide table

13Feb2019

U-58

O-48

Show/hide table

Priority	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE TO HOUSING JOINT BOLTS ON CERTAIN 836K LANDFILL COMPACTORS
3278		PI32986

Show/hide table

NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI32986" 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 "PI32986" 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
31Aug2019	29Feb2020

PROBLEM

Show/hide table

Incorrect final drive to housing joint 463-6062 Bolts (130mm long) may have been installed from the factory, on all four final drive to housing joints, on certain 836K Landfill Compactors. These bolts are incorrect and need to be replaced with new 2446356/">244-6356 Bolts (110mm long), on all four final drive to housing joints, to ensure full bolted joint engagement.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
836K	T6X00101 TWZ00698, 703-704, 706

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
100	2446356	BOLT-HEX HEAD
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 44% 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

Note: Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed. Refer to the Operation and Maintenance Manual "Safety Section".

Refer to the Service Manual if/as necessary.

Remove the wheels and axle guards, as needed, in order to access the final drive bolted joints.

Inspect the final drive to housing bolted joints, in at least four locations, on all four final drives. This inspection will determine which option A or B Rework Procedure will need to be completed below.

A) If all four locations are inspected and 2446356/">244-6356 Bolts (110mm long) are installed in each location, replace the existing bolts with new 2446356/">244-6356 Bolts (110mm long) and tighten the new bolts to a specified torque of (375 +\- 40 N.m, then turn additional 120 +\- 10 degrees). No additional rework is required.

B) If 463-6062 Bolts (130mm long) are found in any one of the four locations, complete the following steps below. Refer to Image1.

Note: Change the bolts without removing Final Drive.

Refer to KENR6490, Disassembly and Assembly, for the removal and installation procedures for the axle guards in order to access the final drive bolts.

1. Remove the existing 463-6062 Bolts (130mm long).

2. Install new 2446356/">244-6356 Bolts (110mm long) one at a time (25 total, per final drive). Chase threads with appropriate tap. Add Threadlocker Sealant Loctite 243 (Medium Strength) to the threads of 2446356/">244-6356 Bolts (110mm long). Follow Loctite's recommended application procedures.

3. Tighten the new 2446356/">244-6356 Bolts (110mm long) to a specified torque of (375 +\- 40 N.m, then turn an additional 120 +\- 10 degrees).

Show/hide table

Image1

OWNER NOTIFICATION

Show/hide table

Owners in the following countries will receive the attached Owner Notification:
US
Canada

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%

NOTE: This is a 32.0-hour job
Note: $150 US Dollars is allowed for Threadlocker Sealant Loctite 243 (Medium Strength). Note: $1000 US Dollars is allowed for tire service contractor for wheel removal, as needed.

PARTS DISPOSITION

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

EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE TO HOUSING JOINT BOLTS

MODELS INVOLVED - CERTAIN 836K LANDFILL COMPACTORS

Dear Cat Product Owner:

Incorrect final drive to housing joint 463-6062 Bolts (130mm long) may have been installed from the factory, on all four final drive to housing joints, on the products listed below. These bolts are incorrect and need to be replaced with new 2446356/">244-6356 Bolts (110mm long), on all four final drive to housing joints, to ensure full bolted joint engagement. You will not be charged for the service performed.

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

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 13Feb2019 when scheduling this service.

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

Caterpillar Inc.

Identification #(s)

Attached to 13Feb2019 Service Letter