21693572 Volvo.Penta Valve guide

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PRIORITY - NEW DIPSTICK MAY NEED TO BE INSTALLED IN THE ENGINES OF CERTAIN 776B TRACTORS, 777B TRUCKS - PI3446 - MAI LED US AND CANADA, CACO, COFA, COSA, LIMITED CFEL
  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-3 A-2 AU-2 E-1.1 O-2 PRIORITY 1326 PI3446 COMPLETION DATE Termination Date
July 31, 1990 January 31, 1991
Problem
An incorrect dipstick may have been installed in the engines of certain 776B Tractors and 777B Trucks. This dipstick will indicate that oil level is correct even though the oil level in the engine is low.
Affected Product
Model Identification Number 776B 6JC77-79 777B 4YC1090, 1092-1094, 1096, 1098-1172
Parts Needed
Dealers will need to order parts for this Program. 1 - 2W2958 Gauge-Oil Level
Action Required
Check the part number of the dipstick. If it is a 2W3379 Gauge-Oil Level, replace it with a 2W2958 Gauge-Oil Level. If no part number can be found, measure the length of the dipstick. The dipstick should be 85.7 inches long. If the dipstick is 95 inches long replace it with a 2W2958 Gauge-Oil Level.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Sell) (C/L) (Sell) 100% 1 0 0 0 0 This is a 1-hour job.
Parts Disposition
All parts removed (with the exception of cores used for Caterpillar Remanufactured parts) should be rendered useless and scrapped immediately upon completion of the repair. 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 - New Dipstick May Need To Be Installed In The Engines Of Certain 776B Tractors And 777B Trucks MODELS INVOLVED - 776B Tractors And 777B Trucks Dear Caterpillar Product Owner: An incorrect dipstick may have been installed in the engines of certain 776B Tractors and 777B Trucks. This dipstick will indicate that the oil level is correct even though the oil level in the engine is low. 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 one hour. 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 Inc. Identification #(s) Attached to January 3, 1990 Service Letter