PRODUCT IMPROVEMENT PROGRAM FOR REPLACING AND OR REWORKING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS Caterpillar


PRODUCT IMPROVEMENT PROGRAM FOR REPLACING AND OR REWORKING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS

Usage:

TEBE5563-01

01Dec2016
(Revised 27Jan2017)


A-452

 

Priority

  
  

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING AND OR REWORKING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS

7755 4307 4304
PI32711
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 "PI32711" 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 "PI32711" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "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 01Dec2016 Service Letter. Changes have been made to the Service Claim Allowances.


COMPLETION DATE

TERMINATION DATE

30Jun2017 31Dec2017

PROBLEM

The steering line hose assemblies between the cab hand metering unit (HMU) and the steering flow amplifier valve need to be replaced and or reworked on certain 794 AC Off-Highway Trucks. The existing hose assembly routings allow the hose assemblies to chafe against each other and can cause a hose assembly failure.

AFFECTED PRODUCT

Model Identification Number
*******Group  1*******
794 AC  MT500108-00111
*******Group  2*******
794 AC  MT500100-00101

PARTS NEEDED

Qty

Part Number Description
*******Group 1*******
365 2062722 GUARD-HOSE CENTIMETERS)
438 2062723 GUARD-HOSE (CENTIMETERS)
435 2062724 GUARD-BULK(HOSE) (CENTIMETERS)
3 2287088 SEAL-O-RING-ORFS
1 2287089 SEAL-O-RING-ORFS
4 2287090 SEAL-O-RING-ORFS
4 2287091 SEAL-O-RING-ORFS
1 4491393 HOSE AS
1 4491394 HOSE AS
1 4491396 HOSE AS
1 4491399 HOSE AS
1 4614197 HOSE AS
1 4614199 HOSE 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.

*******Group 2*******
186 2062722 GUARD-HOSE (CENTIMETERS)
212 2062723 GUARD-HOSE (CENTIMETERS)
223 2062724 GUARD-BULK(HOSE) (CENTIMETERS)
2 2287088 SEAL-O-RING-ORFS
4 2287090 SEAL-O-RING-ORFS
2 2287091 SEAL-O-RING-ORFS
4 2287092 SEAL-O-RING-ORFS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 42% 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

For the machines listed in Group 1 replace the hose assemblies as per listed in Table 1. Add guard to each hose assembly as per listed in Table 1. The guard for each hose assembly must be assembled starting at the hose coupling end that connects to the hand metering unit (HMU) mounted underneath the cab. The guard will extend to the first clipping point on the frame.

Note: For any hose assembly observed with chafing marks or any other type of deformation upon removal: provide hose assembly part number, location dimension(s) taken from HMU hose connection end of affected area and pictures. Give the information to your Dealer Technical Communicator (TC) along with this service letter program number and CPI number 381169. Request the Dealer TC to submit the information through CPI Feedback within the Service Information Management System (SIMSi).

For the machines listed in Group 2 add guard to each hose assembly as per listed in Table 2. The guard for each hose assembly must be assembled starting at the hose coupling end that connects to the hand metering unit (HMU) mounted underneath the cab. The guard will extend to the bulkhead plate.
Image1
Image2

OWNER NOTIFICATION

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

SERVICE CLAIM ALLOWANCES

Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 1*******
100%
100%
0%
0%
0%
0%
 NOTE: This is a 20.0-hour job for Group 1
This is a 20.0 hour job. This includes the time to manufacture new hose assemblies and to remove and replace the existing hose assemblies.

Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 2*******
100%
100%
0%
0%
0%
0%

 NOTE: This is a 3.0-hour job for Group 2


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.
 
 
 
EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REPLACING AND OR REWORKING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS

MODELS INVOLVED - 794 AC Off-Highway Trucks

Dear Cat Product Owner:

The steering line hose assemblies between the cab hand metering unit (HMU) and the steering flow amplifier valve need to be replaced and or reworked on the products listed below. The existing hose assembly routings allow the hose assemblies to chafe against each other and can cause a hose assembly failure. 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 01Dec2016 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 01Dec2016 Service Letter

Caterpillar Information System:

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS PRODUCT IMPROVEMENT PROGRAM FOR REPLACING HOSE ASSEMBLIES IN THE STEERING LINES GROUP ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS
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