PRIORITY - PARTS STOCK ACTION NEEDED - OIL FILTER BYPASS VALVE NEEDS TO BE CHANGED ON CERTAIN 3606, 3608, 3612 & 3616 ENGINES - M AILED US, CANADA, CFEL, LIMITED CACO, COFA, COSA Caterpillar

PRIORITY - PARTS STOCK ACTION NEEDED - OIL FILTER BYPASS VALVE NEEDS TO BE CHANGED ON CERTAIN 3606, 3608, 3612 & 3616 ENGINES - M AILED US, CANADA, CFEL, LIMITED CACO, COFA, COSA

Usage:

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Caterpillar: Confidential Yellow

PRIORITY - PARTS STOCK ACTION NEEDED - OIL FILTER BYPASS VALVE NEEDS TO BE CHANGED ON CERTAIN 3606, 3608, 3612 & 3616 ENGINES - M AILED US, CANADA, CFEL, LIMITED CACO, COFA, COSA

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.


U-198
A-95.1
AU-124.1
E-85
O-126.1
PRIORITY
1306  PI3359

Termination Date

December 31, 1989

Problem

The oil filter bypass valve may be forced open during cold start-up on
certain 3606, 3608, 3612, and 3616 Engines due to the viscosity of the
oil. New oil filter housings, which do not contain a bypass valve, need
to be installed to prevent contaminated oil from reaching the clean side
of the oil filter and the lubrication system. Former 7W2469 Housings -
Oil Filter need to be removed from dealer parts stock.

Affected Product

Model Identification Number
3606 8RB1 - 314
3608 6MC1 - 254
3612 9RC1 - 20
3616 1PD1 - 20

Parts Needed

Dealers will need to order parts for this Program.
2 - 7C7871 Housing
2 - 6V3349 Seal
4 - 3P0654 Seal - O-Ring

Action Required

Parts Stock
Remove all 7W2469 Housings from dealer parts stock.
Affected Product
Remove the existing 7W2469 Housings (Oil Filter) and install new 7C7871
Housings.

Owner Notification

U.S. and Canadian owners will receive the attached Owner Notification.

Service Claim Allowances

Affected Product
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(C/L) (Sell)  (C/L) (Sell)
100% 3 0 0  0 0
NOTE: This is a 3-hour job.
Parts Stock
Submit one claim for all 7W2469 Housings removed from dealer parts
stock.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on
warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach. (1-Owner Notification)
COPY OF

Owner Notification

 FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
PRIORITY - Oil Filter Bypass Valve Needs To Be Changed
On Certain 3606, 3608, 3612, And 3616 Engines
MODELS INVOLVED - 3606, 3608, 3612, And 3616 Engines
Dear Caterpillar Product Owner:
The oil filter bypass valve may be forced open during cold start-up on
the products listed below. New oil filter housings, which do not
contain a bypass valve, need to be installed to prevent contaminated oil
from reaching the clean side of the oil filter and the lubrication
system. The repair will be done at no cost to you.
Contact your local Caterpillar dealer immediately and schedule a time to
have this service performed. The repair time for this service is
approximately three hours.
We regret the inconvenience this may cause you, but urge you to have
this service performed as soon as possible to prevent unscheduled
downtime.
Caterpillar
Identification #(s)
Attached to December 11, 1988 Service Letter