PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE FAN AND RADIATOR SHROUD ON CERTAIN 424 II BACKHOE LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE FAN AND RADIATOR SHROUD ON CERTAIN 424 II BACKHOE LOADERS

Usage:

TEBE1224-00

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17Apr2014

D-188

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE FAN AND RADIATOR SHROUD ON CERTAIN 424 II BACKHOE LOADERS
1382 1353 1377 1356 1360		PS52647

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NOTE:

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52647" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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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TERMINATION DATE

30Apr2015

PROBLEM

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The existing engine fan can break on certain 424 II Backhoe Loaders. If the existing engine fan fails, it can/will puncture the radiator.

AFFECTED PRODUCT

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Model	Identification Number
424 II	JRC03651-05990, 5997-6481, 6483-6486, 6488-6682, 6685-7319, 7330-7708, 7710-7739

PARTS NEEDED

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Qty	Part Number	Description
1	3079361	FAN SHROUD
1	3728134	SPIDER AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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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An alternate shroud design should now be installed on machines that have had engine fan failures more than two times on the same machine.

Refer to the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-3000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
3001-5000 hrs, 13-24 mo	0.0%	0.0%	0.0%	0.0%	75.0%	100.0%

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NOTE: This is a 3.0-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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Removal Procedure:

1. Remove the hood.

2. Remove the side panel.

3. Remove three bolts (2) and fan guard (1). Refer to Image1.1.1.

Image1.1.1

4. Drain the engine coolant into a suitable container for storage or disposal.

5. Loosen hose clamps (2) and remove radiator hose (1). Refer to Image1.2.1.

Image1.2.1

6. Remove four bolts (3). Refer to Image1.3.1.

Image1.3.1

7. Loosen clamps (4) and remove radiator hose (5). Refer to Image1.4.1.

Image1.4.1

8. Remove two bolts (7). Remove bolts (6) and bracket (8) from both sides of the radiator. Refer to Image1.5.1.

Image1.5.1

9. Attach a suitable lifting device to the radiator. Remove two mounting bolts and nuts (9). Remove the radiator. Refer to Image1.6.1.

Image1.6.1

10. Remove four nuts (3) and fan (4). Refer to Image1.7.1.

Image1.7.1

Installation Procedure:

1. Install fan (4) and four nuts (3). Tighten to a specified torque of 20 +/- 3 N.m. Refer to Image1.8.1.

Image1.8.1

2. Attach a suitable lifting device to the radiator. Install the radiator.

3. Install the mounting bolts and nuts (9). Tighten to a specified torque of 55 +/- 10 N.m. Refer to Image1.9.1.

Image1.9.1

4. Install bracket (8) and bolt (6). Install two bolts (7) in both the sides of the radiator. Tightening the radiator top mounting bolts to a specified torque of 28 +/- 7 N.m. Refer to Image1.10.1.

Image1.10.1

5. Install radiator hose (5) and tighten two hose clamps (4). Refer to Image1.11.1.

Image1.11.1

6. Install four bolts (3). Adjust shroud to equalize fan tip clearance to shroud all around with a minimum of 10mm radial gap. Tighten the bolts to a specified torque of 28 +/- 7 N.m.
Refer to Image1.12.1.

Image1.12.1

7. Install radiator hose (1) and tighten hose clamps (2). Refer to Image1.13.1.

Image1.13.1

8. Refill the cooling system.

Refer to SEBU9088, Operation and Maintenance Manual, "Refill Capacities", for the correct procedure.

9. Install fan guard (1) and three bolts (2). Tightening the bolts to a specified torque of 28 +/- 7 N.m. Refer to Image1.14.1.

10. Install the hood.

11. Install the side panel.