7699 Mariner COVER, CYLINDER BLOCK

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CRANKSHAFT DAMPER BOLTS NEED TO BE RETIGHTENED ON CERTAIN D10N TRACTORS, 992C LOADERS, 773B TRUCKS, 3408, 3412 MARINE ENGINES - M AILED WORLDWIDE EXCEPT BRAZIL.
  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-45 A-26 AU-32 E-25 O-30 PRIORITY 1205 PI3299 COMPLETION DATE Termination Date
September 30, 1988 March 31, 1989
Problem
The bolts which hold the damper to the crankshaft adapter on certain D10N Tractors, 992C Loaders, 773B Trucks and 3408 and 3412 Marine Engines may have been improperly tightened. The bolts need to be tightened to the correct torque.
Affected Product
Model Identification Number D10N 2YD380 - 436, 442, 445 992C 49Z1089 - 1122, 1124 773B 63W2087 - 2097, 2099, 2102-2109, 2111-2138, 2141-2164, 2167, 2168-2170, 2172, 2178 3408 99U5610 - 5769 3412 60M3165 - 3307
Parts Needed
none
Action Required
Tighten the 12-S1585 Bolts that hold the crankshaft damper to the crankshaft adapter to 135 +- 15 N.m (100 +- 10 lb ft)
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) - 2 0 0 0 0 This is a 2-hour job.
Parts Disposition
not applicable 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 - Bolts Which Hold Damper To Crankshaft Adapter Need To Be Retightened MODELS INVOLVED - D10N Tractors, 992C Loaders, 773B Trucks, 3408 And 3412 Marine Engines Dear Caterpillar Product Owner: The bolts which hold the damper to the crankshaft adapter on the products listed below may have been improperly tightened. 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 two 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 March 20, 1988 Service Letter