PRODUCT SUPPORT PROGRAM TO INSPECT THE 7W-4979 CHECK VALVE THAT MAY HAVE BEEN INCORRECTLY INSTALLED ON CERTAIN C32 GENSET OIL LEVEL REGULATOR DRAIN LINES Caterpillar

PRODUCT SUPPORT PROGRAM TO INSPECT THE 7W-4979 CHECK VALVE THAT MAY HAVE BEEN INCORRECTLY INSTALLED ON CERTAIN C32 GENSET OIL LEVEL REGULATOR DRAIN LINES

Usage:

REBE3248-00

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27Feb2008

U-98

A-78

D-75

O-85

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*Before/After*	PRODUCT SUPPORT PROGRAM TO INSPECT THE 7W-4979 CHECK VALVE THAT MAY HAVE BEEN INCORRECTLY INSTALLED ON CERTAIN C32 GENSET OIL LEVEL REGULATOR DRAIN LINES
1334		PS42626

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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 "PS42626" 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

28Feb2010

PROBLEM

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The 7W-4979 Check Valve may have been installed with the incorrect direction of flow during assembly. If the check valve is installed incorrectly it will not allow the oil to drain to the oil pan. This could give the engine a false reading that the oil level is ok, letting it run, which could cause damage to the engine.

AFFECTED PRODUCT

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Model	Identification Number
C32	SXC00300-00593, 595-621, 627-658, 660-661, 665-676, 678-1855, 1857-2045, 2047-2108, 2110-2252, 2255-2267, 2269-2343, 2345-2355, 2357-2359, 2361-2371, 2377-2384, 2391-2392, 2394-2403, 2410-2412, 2419-2421, 2428-2433, 2435-2448, 2450, 2454-2464, 2469, 2477-2486, 2489-2493, 2495-2503, 2506-2508, 2512-2516, 2519, 2523, 2525, 2528

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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1. Refer to the appropriate Service Manual as necessary. Follow all safety precautions.

2. Perform work with engine off.

3. Inspect check valve to see if 3/8 bolt on valve is facing away from engine, if so valve orientation is correct and nothing further is needs to be done. If check valve is installed with the incorrect flow proceed to step 4. Refer to Image1 and Image2

4. Close flow valve at oil pan to prevent oil from draining during check valve removal.

5. Remove check valve.

6. Re-install check valve with direction of flow towards the oil pan.

7. Open flow valve.

8. Check for leaks, rectify as necessary.

9. Run engine, check for leaks and rectify as necessary.

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Image1

Image2

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%
0-10000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.0-hour job
An additional 1.0 hour will be allowed for units requiring the check valve orientation to be changed. Include description in claim story.

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