PRODUCT SUPPORT PROGRAM FOR REPLACING XT6-12 HOSE ASSEMBLIES ON CERTAIN D6K XL AND D7R II TRACK-TYPE TRACTOR Caterpillar
PRODUCT SUPPORT PROGRAM FOR REPLACING XT6-12 HOSE ASSEMBLIES ON CERTAIN D6K XL AND D7R II TRACK-TYPE TRACTOR
Usage:
TEBE4602-00
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16May2016
U-242
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Before/After
PRODUCT SUPPORT PROGRAM FOR REPLACING XT6-12 HOSE ASSEMBLIES ON CERTAIN D6K XL AND D7R II TRACK-TYPE TRACTOR
5179 4104
PS45070
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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 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 "PS45070" 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 Caterpillar product analyst.
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TERMINATION DATE
31May2018
PROBLEM
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The XT6-12 hose assemblies may fail on the Affected Product. These hose assemblies, if manufactured from XT6ES (161-1835) or ToughGuard (238-8346) bulk hose manufactured from 27-Jul-15 through 31-Oct-15 may fail due to a manufacturing defect. If one of these hose assemblies fail it may develop a pin hole leak or blister of oil within the hose.
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% 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.
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% 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
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Refer to the service manual if/as necessary and see the attached rework procedures.
The impacted hose has a cure date range from 27-Jul-15-6 through 31-Oct-15-6. The cure date is ink jet printed in white ink (Image 1) and can be found on the black portion of the hose surface (not in the hose layline). Prior to removal of the assembly, locate the cure date on the hose. If the date is from 27-Jul-15-6 through 31-Oct-15-6, or if the cure date cannot be found on the hose, remove and replace the assembly following the rework procedure. The cure date of the hose is NOT located on the white tag (Image 2) found on the hose assembly.
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Image1
SERVICE CLAIM ALLOWANCES
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Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 1*******
0-1500 hrs, 0-24 mo
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
NOTE: This is a 3.0-hour job for Group 1
An additional 4 hours is allowed to replace hoses.
Reasonable travel time and mileage is allowed. Sites with multiple affected machines in this service letter should complete multiple machines on the same trip.
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Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
*******Group 2*******
0-1500 hrs, 0-24 mo
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
NOTE: This is a 8.0-hour job for Group 2
An additional 1/2 hour is allowed to replace Winch hoses if machine is equipped.
Reasonable travel time and mileage is allowed. Sites with multiple affected machines in this service letter should complete multiple machines on the same trip.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
Group Number 1
1. Park the machine on level ground ? Lower the bulldozer to the ground. Remove the two rear bottom guards and the frame rear plate if the winch or the ripper is not installed. Refer to Disassembly & Assembly manual. 2. Remove hydraulic tank filler cap slowly to relieve the pressure and install a vacuum tool. 3. Keep existing fasteners to reassemble machine. Be prepared to collect the oil with a suitable container before removing the hose assemblies. 4. Change seals to assemble new hose assemblies.
5. 269-8260 and 272-0511 Winch Ready or Winch& Ripper Package Hose As are affected by the issue. Inspect bulk hose date code printed on the hose. If date code is in the range of bad bulk date code or not visible, change Differential Steering hoses. Refer to Image 1.2.1. NOTE: may need a mirror to check the date code depending on location it is printed on the bulk.
Image1.2.1
6. Apply the Air Bleed Procedure before running the machine. Crank the engine for 2 seconds, repeat 3 times. 7. Start the engine and warm up the oil ( > 30 ?C). 8. With the Parking Brake on and hydraulic lock switch off , move the winch lever in both sides couple of times . Hold the position for 5 seconds each time . Repeat 3 times in both directions. 9. Put the winch lever in neutral and the hydraulic lock switch on, turn off the engine . Check for oil leakage at connections for the new hoses . Repair as needed and apply the procedure. Again check the hydraulic tank oil level and refill as necessary . Refer to OMM. 10. Install the rear guard bottoms and the frame rear plate . Refer Disassembly & Assembly manual.
Group Number 2
1. Park the machine on level ground ? Lower the bulldozer to the ground. To get access, remove the seat, both floor plates and RH side plate. Refer to Disassembly & Assembly manual. 2. Remove hydraulic tank filler cap slowly to relieve the pressure and install a vacuum tool. 3. Keep existing fasteners to reassemble machine. Be prepared to collect the oil with a suitable container before removing the hose assemblies. 4. Change seals to assemble new hose assemblies
5. 227-9392 and 227-9393 Differential Steering Hose As are affected by the issue. Inspect bulk hose date code printed on the hose. If date code is in the range of bad bulk date code or not visible, change Differential Steering hoses. Refer to Image 2.2.1. NOTE: may need a mirror to check the date code depending on location it is printed on the bulk.
Image2.2.1
6. If machine is equipped with a winch, 170-0462 and 170-0463 Winch Hose As are affected by the issue. Inspect bulk hose date code printed on the hose. If date code is in the range of bad bulk date code or not visible, change winch hoses. Refer to Image 2.3.1. NOTE: may need a mirror to check the date code depending on location it is printed on the bulk.
Image2.3.1
7. Apply the Air Bleed Procedure before running the machine. Crank the engine for 2 seconds, repeat 3 times. 8. Start the engine and warm up the oil ( > 30 ?C). With the direction switch in neutral , depress the brake pedal , turn the Parking Brake switch off and move the steering lever to its minimum steering speed in both directions couple of times . Hold the position for 5 seconds each time . Repeat 3 times in both directions . 9. Put the steering lever in neutral , turn the Parking Brake switch on. 10. With the Parking Brake on and hydraulic lock switch off , move the winch lever in both sides couple of times . Hold the position for 5 seconds each time . Repeat 3 times in both directions. 11. Put the winch lever in neutral and the hydraulic lock switch on, turn off the engine . Check for oil leakage at connections for the new hoses . Repair as needed and apply the procedure. Again check the hydraulic tank oil level and refill as necessary . Refer to OMM. 12. Install both floor plates, seat and RH side plate. Refer to Disassembly & Assembly manual.
