PRODUCT SUPPORT PROGRAM FOR INSTALLING A HYDRAULIC NOISE REDUCTION HOSE ON CERTAIN 307E EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSTALLING A HYDRAULIC NOISE REDUCTION HOSE ON CERTAIN 307E EXCAVATORS

Usage:

TEBE0261-01

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27Aug2013

(Revised 23Sep2013)

D-320

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSTALLING A HYDRAULIC NOISE REDUCTION HOSE ON CERTAIN 307E EXCAVATORS
5057		PS43997

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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 "PS43997" 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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NOTE:	This Revised Service Letter replaces the 27Aug2013 Service Letter. Changes have been made to the Parts Needed and the Rework Procedure.

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TERMINATION DATE

31Aug2014

PROBLEM

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A hydraulic noise reduction hose needs to be added on certain 307E Excavators. Machines without this additional hydraulic noise reduction hose tend to allow more unwanted hydraulic noises coming from the hydraulic system. The new hydraulic noise reduction 3938348/">393-8348 Hose Assembly can further cushion and reduce the hydraulic noise.

AFFECTED PRODUCT

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Model	Identification Number
307E	H1Y00100-00208

PARTS NEEDED

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Qty	Part Number	Description
4	5K9090	SEAL-O-RING-ORFS
1	5P7468	CLIP-HALF SLOT
1	5P7469	CLIP-HALF TANG
1	5P8444	GROMMET
1	6V8785	ADAPTER-TEE
1	6V9512	PLUG-ORFS
1	6V9854	ADAPTER-ELBOW
1	7M8485	SEAL-O-RING
1	8T4121	WASHER-HARD
1	8T4136	BOLT-HEX HEAD
1	9R2672	BOSS
1	3938348	HOSE AS
1	BULK_OIL	HYDRAULIC OIL- 1 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%
0-2500 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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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. Park the machine on level ground with the implements lowered. Refer to Image1.1.1.

Refer to RENR9744, Disassembly and Assembly, "System Pressure Release" before performing this Rework Procedure.

Image1.1.1

2. Locate the hose boss location. Refer to Image1.2.1.

3. Weld a 5mm fillet weld all around the new boss.

Refer to REHS1841, Special Instruction, "General Welding Procedures", for the fillet welding.

4. Touch up the paint at the rework area after welding completion.

Image1.2.1

5. Pre-assemble the 150-3073 Hose Plug to the new hydraulic noise reduction 3938348/">393-8348 Hose Assembly.

6. Tighten the plug to a specified torque of 190 +/- 20 N.m. Standby for later use.

7. Disconnect the hydraulic pump outlet hose and the 90 degree elbow from the hydraulic pump outlet block.

8. Loosen the hydraulic pump outlet hose clamp. Refer to Image1.3.1.

9. Orient and hand tighten the new T-fitting to the hydraulic pump outlet block. Refer to Image 1.3.1.

10. Orient and hand tighten the hydraulic pump outlet hose and the fitting. Hand tighten the new hydraulic noise reduction hose onto the T-fitting.

11. Install and hand tighten the new noise reduction hose clamp, grommets, and the bolt.

12. Once all hoses are located, tighten all hose sealing interfaces to a specified torque of 190 +/- 20 N.m.

13. Tighten all remaining hose interfaces to a specified torque of 190 +/- 20 N.m.

14. Tighten the hose clamp bolt to a specified torque of 55 +/- 10 N.m. Refer to Image1.3.1.

15. Start the engine and perform an air de-bleed in the hydraulic system. Refer to the Service Manual for your machine for additional information.

16. Exercise and test run all implement functions for 10 minutes at high speed.

17. Observe and ensure that there are no leaks around the hoses.