PRODUCT SUPPORT PROGRAM FOR REPLACING THE 224-8926 REAR FUEL LINE ON CERTAIN D9T TRACK-TYPE TRACTORS Caterpillar
PRODUCT SUPPORT PROGRAM FOR REPLACING THE 224-8926 REAR FUEL LINE ON CERTAIN D9T TRACK-TYPE TRACTORS
Usage:
REBE2554-02
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26Oct2007
(Revised 07Dec2007)
U-541
A-442
D-441
O-473
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Before/After
PRODUCT SUPPORT PROGRAM FOR REPLACING THE 224-8926 REAR FUEL LINE ON CERTAIN D9T TRACK-TYPE TRACTORS
1274
PS42537
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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 "PS42537" 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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NOTE:
This Revised Service Letter replaces the 26Oct2007 Service Letter. Changes have been made to the Parts Needed.
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TERMINATION DATE
31Oct2009
PROBLEM
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The existing 224-8926 Rear Fuel Line can fail on certain D9T Track-Type Tractors. If the existing rear fuel line rubs against other components it can cause a fuel leak.
In Order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 18% 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 18% 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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Group 1. Install 2 new 2 piece P clips with a rubber grommet, and replace the old 224-8926 Hose with the new 310-7147 Hose As. and the associated hardware. The new 310-7147 Hose has been shortened to remove excess slack, and prevent rubbing. Refer to the attached Rework Procedure.
Group 2. Install 3 new 2 piece P clips with a rubber grommet, and replace the old 224-8926 Hose with the new 310-7147 Hose As. and the associated hardware. The new 310-7147 Hose has been shortened to remove excess slack, and prevent rubbing. Refer to the attached Rework Procedure.
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
Group Number 1
Remove the old fuel line and clips. Inspect the machine engine wiring harness for indications of rubbing against the rear fuel line. If the fuel line and machine engine wiring harness have made contact and the wiring harness has rubbed through exposing the wiring, the wiring harness should be replaced.
Image 1.2.1 below shows the proper routing of the fuel line and Machine engine wiring harness. It also indicates specific points of interest.
A ? Front Fitting into Fuel Manifold B ? Front 2-Piece P-Clip with Grommet C ? Rear 2-Piece P-Clip with Grommet D ? Potential Interference Between Hose and Harness E ? Potential Interference Between Hose and Harness F ? Potential Interference Between Hose and Harness G ? Potential Interference Between Hose and ECM (Refer to Image 1.1.1)
Image1.1.1
- Use the 7X-1463 and 9X-3893 Couplers and the 9X-2373 Bulk Hose to build the new fuel line 310-7147. - Install the new 310-7147 Fuel Line into the rear fitting in the back of the head - Install the rear 2 piece p clip and grommet on the hose as shown in Image 1.2.1. (7S-3916, 7S-3919, 7V-6571). - Bolt the clip to the rear flywheel housing using the existing bolt and washer. - Adjust the grommet so that the seam of the grommet is in the seam of the clip. - Adjust the hose so that it does not contact anything. - Tighten the 10mm clip bolt to a torque of 55 +/- 10 Nm (41 +/- 7 lb ft). (Refer to Image 1.2.1)
Image1.2.1
- Install the front 2 piece p clip to the 185-2058 Bracket using the existing bolt as shown in Image 1.3.1. - Adjust the grommet so that the seam of the grommet is in the seam of the clip. - Adjust the clip so the hose does not contact anything. - Tighten the 3/8" clip bolt to a torque of 47 +/- 9 Nm (35 +/- 7 lb ft). (Refer to Image 1.3.1) - Install the front hose fitting into the manifold as shown and tighten. (Refer to Image 1.3.2) - Recheck/adjust the entire line to make sure nothing is touching the fuel line.
Image1.3.1
Image1.3.2
Group Number 2
Remove the old fuel line and clips. Inspect the machine engine wiring harness for indications of rubbing against the rear fuel line. If the fuel line and machine engine wiring harness have made contact and the wiring harness has rubbed through exposing the wiring, the wiring harness should be replaced.
Image 1.2.1 below shows the proper routing of the fuel line and Machine engine wiring harness. It also indicates specific points of interest.
A ? Front Fitting into Fuel Manifold B ? Front 2-Piece P-Clip with Grommet C ? Middle 2-Piece P-Clip with Grommet D ? Rear 2-Piece P-Clip with Grommet E ? Potential Interference Between Hose and Harness F ? Potential Interference Between Hose and Harness G ? Potential Interference Between Hose and Harness H ? Potential Interference Between Hose and ECM (Refer to Image 2.1.1)
Image2.1.1
- Use the 7X-1463 and 9X-3893 Couplers and the 9X-2373 Bulk Hose to build the new fuel line 310-7147. - Install the new 310-7147 Fuel Line into the rear fitting in the back of the head - Install the rear 2 piece p clip on the hose as shown in Image 2.2.1. (7S-3916, 7S-3919, 7V-6571). - Bolt the clip to the rear flywheel housing using the existing bolt and washer. - Adjust the grommet so that the seam of the grommet is in the seam of the clip. - Adjust the hose so that it does not contact anything. - Tighten the 10mm clip bolt to a torque of 55 +/- 10 Nm (41 +/- 7 lb ft). (Refer to Image 2.2.1)
Image2.2.1
- Install the middle 2 piece p clip using the 0S-1619 Bolt, 5M-2894 Washer, and 108-3612 Spacer as shown in Image 2.3.1 and 2.3.2. - Adjust the grommet so that the seam of the grommet is in the seam of the clip. - Adjust the clip so the hose does not contact the wiring harness or anything else. - Tighten the 3/8" clip bolt to a torque of 47 +/- 9 Nm (35 +/- 7 lb ft). (Refer to Images 2.3.1 and 2.3.2)
Image2.3.1
Image2.3.2
- Install the front 2 piece p clip to the 185-2058 Bracket using the existing bolt as shown in Image 2.4.1. - Adjust the grommet so that the seam of the grommet is in the seam of the clip. - Adjust the clip so the hose does not contact anything. - Tighten the 3/8" clip bolt to a torque of 47 +/- 9 Nm (35 +/- 7 lb ft). (Refer to Image 2.4.1) - Install the front hose fitting into the manifold as shown and tighten. (Refer to Image 2.4.2) - Recheck/adjust the entire line to make sure nothing is touching the fuel line.
