PRODUCT SUPPORT PROGRAM FOR FLUSHING HYDRAULIC SYSTEM AND TANK ON CERTAIN 307E MINI EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR FLUSHING HYDRAULIC SYSTEM AND TANK ON CERTAIN 307E MINI EXCAVATORS

Usage:

TEBE0354-00

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10Sep2013

D-339

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR FLUSHING HYDRAULIC SYSTEM AND TANK ON CERTAIN 307E MINI EXCAVATORS
5056 5068		PS44014

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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 "PS44014" 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 Caterpillar product analyst.

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TERMINATION DATE

30Sep2014

PROBLEM

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Debris in the hydraulic system can cause no or slow implement functions on certain 307E Mini Excavators. If the debris is not removed in the hydraulic system, it can cause other hydraulic components to fail.

AFFECTED PRODUCT

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Model	Identification Number
307E	H1Y00106-00180

PARTS NEEDED

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Qty	Part Number	Description
1	3047195	FILTER AS
1	BULK_OIL	HYDRAULIC OIL-18 LITRES (HYDO ADVANCED 10)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 10% 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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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%

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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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1. Park and position the machine on level ground. Refer to Image1.1.1.

Refer to RENR9744, Disassembly and Assembly, "System Pressure - Release", in order to properly release the pressure in the hydraulic system.

Image1.1.1

2. Unbolt and remove both hydraulic return filters (A), pump suction strainer (B), covers, and the elements. Refer to Image1.2.1.

Image1.2.1

3. Refer to NEHS0848, Tool Operating Manual, "204-7392 (Air Motor Driven) Filter Cart". This will be used to flush and clean the hydraulic tanks or hydraulic systems. Refer Image1.3.1.

Note: This is an example of filter cart group that is recommended for flushing.
This filter cart group is not claimable in this Service Letter.

Image1.3.1

4. Disconnect and remove the flush-face quick disconnect couplings (C) and nipple (D) at inlet (7) and discharge (8) hose respectively. Refer to Image1.4.1.

Image1.4.1

5. Ensure hose (7) and hose (8) are cleaned.

6. Submerge hose (7) into hydraulic oil tank pump strainer inlet (E). Refer Image1.5.1.

7. Position hose (8) outlet into an empty and clean drum (200 liter capacity).

8. Ensure that shut-off valve (2) is in the OFF position before connecting to the air supply.

9. Slowly open shut-off valve (2) in order to start the pumping action.

Note: To vary the pumping rate, shut-off valve (2) can be partially opened or closed.

10. Continue to flush out the hydraulic oil and the debris in the tank until it is dry.

11. Visually inspect both openings (E) and (F) to ensure that no debris is found in the bottom of the tank.

12. Reverse hoses (7) and (8) positions and refill the hydraulic tank with the hydraulic oil from the same drum.

13. Re-assemble the cleaned up hydraulic return filter and the suction strainer and the tank covers.

14. Fill (top up) the hydraulic oil to the required level, if necessary.

15. Start the machine and perform 10-20 minutes of implement movement to observe for any unintended functions.

16. Stop the machine and release the pressure in the hydraulic system. Refer to RENR9744, Disassembly and Assembly, "System Pressure - Release", in order to properly release the pressure in the hydraulic system.

17. Open and remove hydraulic tank covers (E), (F), hydraulic return filter, and the pump strainer. Check for any debris in the bottom of the tank.

18. Repeat the steps above and continue flushing if debris found.

19. Install a new hydraulic return filter. Reassemble the cleaned up pump suction strainer after completed flushing.

20. Reassemble tank covers (E) and (F).

End of hydraulic tank flushing.