PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 AND 269-9928 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 AND 269-9928 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS [REBE1312]

HYDRAULIC SYSTEM

LINES GP-PUMP

PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 AND 269-9928 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS

REBE1312-00

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03Oct2006

B250
B252
B350
B352
B354
B355
B420
D350
D420
D423
E250

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Before/After (Limited distribution)	PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 AND 269-9928 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS
5057		PS42264

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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 "PS42264" 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 AVSpare product analyst.

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TERMINATION DATE

31Oct2008

PROBLEM

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The existing 286-6528 and 269-9928 Snubber Lines may not perform as desired/expected on certain 330D Excavators. A new lines routing is available that reduces bending stress on the couplings and significantly extends component life.

AFFECTED PRODUCT

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Model	Identification Number
330D	B6H00107, 112, 159, 178, 240, 256, 277 NBD00156, 194
330D L	HAS00255-00256, 272 MWP00190, 196-199, 234, 237, 240, 245, 247-250, 256, 364, 366-367, 376, 390, 444, 466, 493, 501, 539, 578, 581, 613-614, 695, 728, 730, 735, 737

PARTS NEEDED

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Qty	Part Number	Description
1	0857356	FITTING-SPECIAL
1	2866528	HOSE AS
1	2967079	SUPPORT AS
1	2967081	SUPPORT AS
1	2S4078	SEAL-O-RING
2	3J1907	SEAL-O-RING
2	5K9090	SEAL-O RING
1	6V9875	CONNECTOR-SPL
1	8T4121	WASHER-HARD
1	8T4195	BOLT

ACTION REQUIRED

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Rework the main pump snubber lines group per the rework procedure. Be sure to procure 286-6528 hose assembly from AVSpares Parts Distribution System rather than building the hose at your dealership. Procuring the entire assembly from AVSpare will accelerate field validation hours for new product. Refer to ?Operation & Maintenance Manual? Media Number SEBU8046 and ?Disassembly and Assembly Manual? Media Number SEBU8648.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-5000 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 4.0-hour job
Up to $200 allowed for travel time and mileage.

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PARTS DISPOSITION

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

Rework Procedure

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REMOVE:
1) Remove the 286-6528 branch line from the 148-8391 elbow , driven pump only. Remove the branch line from the rubber clamps and remove from machine. 2)Prepare to remove the 282-7048 bracket. Leave the 5P-7462, 5P-7463 clips, and the 6V-0683 grommet on the 282-7050 pilot line. 3) Remove the 282-7048 bracket from the machine. 4) Remove the 255-1943 bracket from the machine. 5) Remove the 148-8391 elbow from the pump.

Image1.1.1

INSTALL:
1)Install 296-7079 bracket reusing the 2x 8T-4223 washers and 2x 8T-4139 (M12) bolts. Torque to 100 ? 20 Nm. 2) Install 296-7081 bracket reusing 2x 8T-4121 washers and 2x 8T-4195 (M10) bolts. Torque to 55 ? 10 Nm. 3) Assemble 5P-7462 and 5P-7463 clips to 296-7081 bracket using a new 8T-4121 washer and a new 8T-4195 (M10) bolt. Torque to 55 ? 10 Nm.

Image1.2.1

4) Remove 6V-3965 pressure tap nipple after removing the dust cap. Install 085-7356 elbow with 3J-1907 seal. Orient as shown and torque to 48 ? 5 Nm. Reinstall 6V-3965 pressure tap nipple with a new 3J-1907 seal in the 085-7356 elbow and torque to 48 ? 5 Nm. Reinstall the dust cap on the pressure tap nipple. 5) Install 6V-9875 connector using a new 2S-4078 seal into the pump port and torque to 350 ? 35 Nm.

Image1.3.1

6) Remove plug from the end of the original branch line, replace the seal with a new 5K-9090 o-ring. It is recommended to use XX o-ring installation tool. Install plug on the new 286-6528 branch line. Be sure to procure 286-6528 hose assembly from AVSpares Parts Distribution System rather than building the hose at your dealership. Torque the plug to 190?20 Nm. 7) Install a new 5K-9090 o-ring to the 6V-9875 connector. 8) Next, assemble the new 286-6528 branch line at 25? from vertical as shown. While maintaining the 25? offset, torque the 286-6528 branch line fitting to 190?20 Nm.

Image1.4.1

9) Loosely assemble the straight end of the 286-6528 hose in the rubber clamp.

Image1.5.1

10) Adjust the 286-6528 branch line so there is 150mm extending past the rubber clamp. 11) While maintaining the 150mm dimension, torque the bolts on the rubber clamp to 55?10 Nm. 12) At this point the installation is complete.