PRODUCT IMPROVEMENT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC FAN MOTOR ON CERTAIN 330D EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC FAN MOTOR ON CERTAIN 330D EXCAVATORS

Usage:

REBE1207-00

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07Nov2006

U-715

O-699

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC FAN MOTOR ON CERTAIN 330D EXCAVATORS
1356 1359		PI31178

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31178" 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 "PI31178" as the Part Number, "7751" as the Group Number, "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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COMPLETION DATE	TERMINATION DATE
31May2007	30Nov2007

PROBLEM

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Two plugs need to be removed from the hydraulic fan motor on certain 330D Excavators. The existing 4B-3665 Bearings can fail due to lack of lubrication of the fan drive shaft.

AFFECTED PRODUCT

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Model	Identification Number
330D	ERN00241-00252 GGE00204-00280 RAS00170-00373 THJ00241-00246
330D L	HAS00251-00319

PARTS NEEDED

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Qty	Part Number	Description
1	1373751	SEAL-LIP TYPE
1	1398753	LOCKWASHER
2	4B3665	BEARING-BALL
1	4M0189	SEAL-O RING
2	8T4194	BOLT

ACTION REQUIRED

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Removing the two 137-3780 Plugs from the hydraulic fan motor insures proper lubrication of the drive shaft. The two existing 4B-3665 Bearings need to be replaced by with two new 4B-3665 Bearings. Refer to the attached Rework Procedure.

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OWNER NOTIFICATION

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U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	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.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

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COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC FAN MOTOR

MODELS INVOLVED - 330D EXCAVATORS

Dear Caterpillar Product Owner:

Two plugs need to be removed from the hydraulic fan motor on the productds listed below. The existing 4B-3665 Bearings can fail due to lack of lubrication of the fan drive shaft. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 07Nov2006 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 07Nov2006 Service Letter

Rework Procedure

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1) Put air vacuum tooling on the hydraulic tank.
2) Remove the 273-7836 Sheet Assembly.
3) Remove the 262-2543 Sheet Assembly.
4) Remove the 262-2145 Sheet Assembly.

Image1.1.1

5) Remove the 273-7911 Engine Hood.
6) Remove 256-1912 Sheet Assembly.
7) Remove the 273-7852 Support.

Image1.2.1

8) Remove the 234-4638 Fan Motor.
9) Clean the 209-6063 Shaft and remove two 137-3780 Plugs.

Image1.3.1

10) Remove the top 245-9293 Fan Guard.
11) Remove the fan fixed to the fan drive.
12) Take out the 200-3313 Fan Drive.
13) Remove and replace the two 4B-3665 Bearings by removing two 6V-5590 and 095-7424 Rings.
14) Clean and lube before reassembly.
15) Change 137-3751 and 4M-0189 Seals.
16) Reassemble fan and fan drive using three 8T-4139 Bolts and a new special folded 139-8753 Lockwasher. Tighten to a torque of 100 +/-20 Nm.
17) Fix the fan drive and motor using two NEW 8T-4194 Bolts and 8T-4223 Washers. Tighten to a torque of 100 +/-20 Nm.
18) Fix fan guard using eight 8T-4137 Bolts and 7X-7729 Washers. Tighten to a torque of 55 +/-10 Nm.
19) Fix the 273-7852 Support using four 135-8575 Bolts. Tighten to a torque of 100 +/-20 Nm.
20) Fix the 256-1912 Sheet Assembly using two 135-8573 Bolts. Tighten to a torque of 100 +/-20 Nm.
21) Fix the 273-7911 Engine Hood using eleven 135-8573 Bolts. Tighten to a torque of 100 +/-20 Nm.
22) Fix the 262-2145 Sheet Assembly using two 135-8573 Bolts. Tighten to a torque of 100 +/-20 Nm.
23) Fix the 262-2543 Sheet Assembly using four 135-8573 Bolts. Tighten to a torque of 100 +/-20 Nm.
24) Fix the 273-7836 Sheet Assembly using two 135-8575 Bolts. Tighten to a torque of 100 +/-20 Nm.
25) Remove the air vacuum tooling.