PRODUCT SUPPORT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC OIL COOLER FAN MOTOR ON CERTAIN 385B AND 5090B EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC OIL COOLER FAN MOTOR ON CERTAIN 385B AND 5090B EXCAVATORS [REBE1204]

BASIC ENGINE

DRIVE GP-FAN

PRODUCT SUPPORT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC OIL COOLER FAN MOTOR ON CERTAIN 385B AND 5090B EXCAVATORS

REBE1204-00

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07Nov2006

U-717

A-689

D-674

O-701

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REMOVING TWO PLUGS FROM THE HYDRAULIC OIL COOLER FAN MOTOR ON CERTAIN 385B AND 5090B EXCAVATORS
1386		PS42285

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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 "PS42285" 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

30Nov2008

PROBLEM

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The existing 4B-3665 Bearings can fail due to lack of lubrication of the fan drive shaft on certain 385B and 5090B Excavators.

AFFECTED PRODUCT

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Model	Identification Number
385B	CLS00206-00277 RCD00152-00276
385BL	FDL00151-00283 MYA00291-00292
5090B	CLD00312-00350 SJY00106-00107

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

ACTION REQUIRED

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Removing the two 137-3780 Plugs from the hydraulic oil cooler fan motor insures proper lubrication of the drive shaft. The two existing 4B-3665 Bearings need to be replaced with two new 4B-3665 Bearings. 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%
0-6000 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 37-60 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%

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NOTE: This is a 2.0-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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1) Put air vacuum tooling on hydraulic tank.
2) Remove the 175-1017 Cover.

Image1.1.1

3) Remove the 225-4614 or 200-3252 Hydraulic Oil Cooler Fan Motor.
4) Clean the 242-6902 Shaft and remove two 137-3780 Plugs.

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5) Remove the top fan guard.
6) Remove the fan fixed to fan drive.
7) Take out the 200-3313 Fan Drive.
8) Remove and replace two 4B-3665 Bearings by removing two 6V-5590 and 095-7424 Rings.
9) Clean and lube before reassembly.
10) Change 137-3751 and 4M-0189 Seals.
11) Reassemble fan and fan drive using three 8T-4139 Bolts and a new 139-8753 Special Folded Lockwasher. Tighten to a torque of 100+/-20 Nm.
12) Fix the fan drive and motor using two 8T-4194 Bolts and 8T-4223 Washers. Tighten to a torque of 100+/-20 Nm.
13) Fix the fan guard using five 8T-4195 Bolts and 7X-7729 Washers. Tighten to a torque of 55+/-10 Nm.
14) Fix the 175-1017 Cover using six 135-8573 Bolts. Tighten to a torque of 100+/-20 Nm.
15) Remove the air vacuum tooling.