PRODUCT SUPPORT PROGRAM FOR REPLACING THE ACCUMULATOR COVER, BASE, AND FASTENERS ON CERTAIN H75ES AND H95ES HYDRAULIC HAMMERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE ACCUMULATOR COVER, BASE, AND FASTENERS ON CERTAIN H75ES AND H95ES HYDRAULIC HAMMERS

Usage:

TEBE5406-00

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15Feb2017

U-89

A-60

D-69

O-72

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After Failure Only	PRODUCT SUPPORT PROGRAM FOR REPLACING THE ACCUMULATOR COVER, BASE, AND FASTENERS ON CERTAIN H75ES AND H95ES HYDRAULIC HAMMERS
5077 6333		PS53414

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NOTE:	Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
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 "PS53414" 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

28Feb2019

PROBLEM

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Accumulator cover is flexing during operation. This contributes to fatigue of the mounting bolts on certain H75ES and H95E Hydraulic Hammers. If the existing cover, base, or fasteners fail, it will cause a hydraulic leak.

AFFECTED PRODUCT

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Model	Identification Number
H75E S	X9E00100-00101, 103-198, 200-232, 235-247, 250-376, 379-421, 424-606, 608-1166, 1013, 1172-1332, 1335-1377, 1384-1388
HE95E S	X9F00100, 102-303, 305-866, 873, 876

PARTS NEEDED

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Qty	Part Number	Description
4	6V5686	BOLT-HEX HEAD
4	1984768	WASHER-HARD
1	3867076	MEMBRANE-ACCUM
1	3943905	SEAL-O-RING
1	5152846	BASE-ACCUM
1	5152847	COVER-ACCUM
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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The accumulator base, cover, fasteners, membrane, and seal must be replaced with new parts. 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%
0-1000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
1001-3000 hrs, 13-24 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%
3001-4000 hrs, 25-36 mo	0.0%	25.0%	0.0%	0.0%	75.0%	75.0%

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NOTE: This is a 4.0-hour job
If there has been a previous repair, part age/hours will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.

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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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Start by removing the power cell from the hammer housing. Refer to service manual for more information.

Disassembly:
Step 1: Discharge high pressure accumulator. Keep 9S-8005 Plug and 355-3779 Plug.

Step 2: Remove 4 6V-8201 Bolts and 9X-8399 Washers.

Step 3: Remove 369-1024 Cover and 368-7076 Membrane.

Step 4: Remove 488-1108 Base using appropriate tooling.

Assembly:
Step 1: Lubricate and install 394-3905 Seal onto 515-2846 Base.

Step 2: Install 515-2846 Base into 382-2743 Valve Body.

Step 3: Lubricate and install 368-7076 Membrane onto 515-2846 Base.

Step 4: Install 515-2847 Cover using 6V-5686 Bolts and 198-4768 Hard Washers. Tighten 6V-5686 Bolts to 240 +/- 40 Nm.

Step 5: Replace the 3K-0360 Seal on the 9S-8005 Plug.

Step 6: Replace the 3J-7354 Seal on the 355-3779 Plug.

Step 7: Install 322-6274 Decal onto 515-2847 Cover.

Step 8: Recharge high pressure accumulator to specifications using appropriate tooling.

End By:

Reinstall the power cell into the housing.