PRODUCT SUPPORT PROGRAM FOR REWORKING THE OIL SENSING HOSE ADAPTER AND POSSIBLY THE 4W-7356 O-RING ON THE 328-1699 OIL PRESSURE CONTROL VALVE ON CERTAIN C175-16 GENRATOR SETS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE OIL SENSING HOSE ADAPTER AND POSSIBLY THE 4W-7356 O-RING ON THE 328-1699 OIL PRESSURE CONTROL VALVE ON CERTAIN C175-16 GENRATOR SETS

Usage:

REBE7075-01

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03May2011

(Revised 20May2011)

U-180

A-145

D-164

O-163

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REWORKING THE OIL SENSING HOSE ADAPTER AND POSSIBLY THE 4W-7356 O-RING ON THE 328-1699 OIL PRESSURE CONTROL VALVE ON CERTAIN C175-16 GENRATOR SETS
1304 5117 7555		PS43279

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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 "PS43279" 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 03 May 2011. Changes have been made to the Rework Procedure.

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TERMINATION DATE

31May2013

PROBLEM

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An oil leak may result in the oil pump region on certain C175-16 Generator Sets either due to the sensing hoses rubbing or possibly a cut in the 4W-7356 O-ring in the 328-1699 Pressure Control Valve. If the existing hose adapter and O-ring are not updated, a leak may result.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
C175-16	WYB00220-00463

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*****Group 2*****
C175-16	WYB00100-00112, 114-118, 124-129, 131, 135-136, 138-219

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
1	6V9851	ADAPTER-ELBOW
1	8T7488	ADAPTER-STR
2	2287090	SEAL-O-RING-ORFS
1	2287102	SEAL-O-RING-STOR
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% 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.
*****Group 2*****
1	3E6751	SEAL-O-RING
2	6V8002	SEAL-O RING
1	6V9851	ADAPTER-ELBOW
1	8T7488	ADAPTER-STR
1	1128186	SEAL-O-RING
2	2287090	SEAL-O-RING-ORFS
1	2287102	SEAL-O-RING-STOR
1	3602963	SEAL-O-RING
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% 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%
*****Group 1*****
0-20000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 2.0-hour job for Group 1

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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%
*****Group 2*****
0-20000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 8.0-hour job for Group 2

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Rework Procedure

Group Number 1

- Remove the 227-0061 Adapter that connects the 327-0812 Hose to the 354-4924 Pressure Control Valve.

-Install the 8T-7488 Adapter, the 6V-9851 Adapter, the 228-7102 O-ring, and the 228-7090 O-ring.

- Reconnect the hose. Refer to Image2.4.1.

Group Number 2

- Remove the 328-1699 Oil Pressure Control Valve. Refer to RENR7466, Disassembly and Assembly, "Engine Oil Pump - Remove" for the C175-16 Generator Set.

- Remove the 327-0814 Manifold. In order to remove the 327-0814 Manifold, remove the four 8T-0276 Bolts (M8).

- Remove the 285-6587 Cover. In order to remove the 285-6587 Cover, remove the four 237-2228 Bolts (M10).

- Remove the 4W-7356 O-ring from the 327-0814 Manifold.

Image2.1.1

Image2.1.2

- Use 369-9450 Petro Amber Gel to coat the O-ring and the interior edge of the bore diameter that the 327-0814 Manifold is assembled into.

- Install the 369-9450 Petro Amber Gel coated 360-2963 O-ring onto the 327-0814 Manifold.

Image2.2.1

- Install the 327-0814 Manifold, with the 360-2963 O-ring in place, into the coated bore of 338-8822 Body. Torque the bolts to 28Nm +/- 7Nm.

- Ensure that the 6V-8002 O-ring is seated in the groove of the 285-6587 Cover.

- Re-install the 285-6587 Cover that is opposite the 327-0814 Manifold by installing the four 237-2228 Bolts (M10). Torque to 55 Nm +/- 10Nm.

Image2.3.1

- Remove the 227-0061 Adapter that connects the 327-0812 Hose to the 354-4924 Pressure Control Valve.

- Install the 8T-7488 Adapter, the 6V-9851 Adapter, the 228-7102 O-ring, and the 228-7090 O-ring.

- Reconnect the hose. See Image2.4.1.