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

PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS [REBE1870]

HYDRAULIC SYSTEM

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

REBE1870-00

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26Apr2007

D-129

U-154

A-127

O-139

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REWORKING THE 286-6528 MAIN PUMP SNUBBER LINES ON CERTAIN 330D EXCAVATORS
5057		PS42391

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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 "PS42391" 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

30Apr2009

PROBLEM

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The existing snubber lines may not have the desired/expected component life on certain 330D Excavators. A new lines routing is available that reduces bending stress on the coupling and significantly extends component life.

AFFECTED PRODUCT

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Model	Identification Number
330D	EAH00192-00248 FFK00138-00140 MEY00171-00202, 205-225 NBD00139-00333, 337-463, 465-516

PARTS NEEDED

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Qty	Part Number	Description
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
1	0857356	FITTING-SPECIAL
1	2866528	HOSE AS
1	2967079	SUPPORT AS
1	2967081	SUPPORT AS

ACTION REQUIRED

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Refer to the attached Rework Procedure.

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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%
0-1000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
1001-2000 hrs, 25-48 mo	50.0%	50.0%	50.0%	50.0%	0.0%	0.0%

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NOTE: This is a 4.0-hour job

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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 and 5P-7463 Clips, and the 6V-0683 Grommet on the 282-7050 Pilot Line.
3) Remove the 282-7048 Bracket from the machine.
4) On the 255-1943 Bracket, loosen the harness mounting bolt and cut the 111-4837 Plastic Clip (not shown). Remove the 255-1943 Bracket from the machine.
5) Remove the 148-8391 Elbow from the pump.

Image1.1.1

INSTALL:

6) Install the 296-7079 Bracket reusing the 2 8T-4223 Washers and 2 8T-4139 (M12) Bolts. Tighten to a torque of 100 ? 20 Nm.
7) Install the 296-7081 Bracket reusing 2 8T-4121 Washers and 2 8T-4195 (M10) Bolts. Tighten to a torque of 55 ? 10 Nm.
8) Assemble the 5P-7462 and 5P-7463 Clips to 296-7081 Bracket using a new 8T-4121 Washer and a new 8T-4195 (M10) Bolt. Tighten to a torque of 55 ? 10 Nm.

Image1.2.1

9) Secure the wiring harness to the new 269-7079 Bracket using a 111-4837 Plastic Clip, 8T-4137 (M10) Bolt and 8T-4121 Washer. Tighten to a torque of 30 ? 5 Nm.

Image1.3.1

10) Remove 6V-3965 Pressure Tap Nipple after removing the dust cap. Install 085-7356 Elbow with 3J-1907 Seal. Orient as shown and tighten to a torque of 48 ? 5 Nm. Reinstall 6V-3965 Pressure Tap Nipple with a new 3J-1907 Seal in the 085-7356 Elbow and tighten to a torque of 48 ? 5 Nm. Reinstall the dust cap on the pressure tap nipple.
11) Install 6V-9875 Connector using a new 2S-4078 Seal into the pump port and tighten to a torque of 350 ? 35 Nm.

Image1.4.1

12) Remove plug from the end of the original branch line, replace the seal with a new 5K-9090 O-Ring.
13) Install a new 5K-9090 O-Ring to the 6V-9875 Connector.
14) Assemble the new 286-6528 Branch Line at 25? from vertical as shown. While maintaining the 25? offset, tighten the 286-6528 Branch Line Fitting to a torque of 190 ?20 Nm.

Image1.5.1

15) Loosely assemble the straight end of the 286-6528 Hose in the rubber clamp.

Image1.6.1

16) Adjust the 286-6528 Branch Line so there is 150mm extending past the rubber clamp.
17) While maintaining the 150mm dimension, tighten the bolts on the rubber clamp to a torque of 55 ? 10 Nm.
18) At this point the installation is complete.