HOUSING 7N4679 - Caterpillar

****Group 3****
Model Identification Number
3408 (988) 2W0988 4844976, 44986, 44991
3408 (988) 4P4988 48W44988-44990****Group 4****
Model Identification Number
3408E (657) 1496376 99C9853
3412E (773) 2567544 5JJ4184
3412E (775) 1314878 80M8115
C27 (D10) 2122737 EHX2584PARTS NEEDED
No parts are needed.ACTION REQUIRED
Group 1 & Group 3
Torque the damper adapter bolts to215 +/- 40 n/m.
Note: In D9 applications, the bellyguard will need to be removed.Group 2 & Group4
Loosen and remove the crankshaft pulley Vbelts. Remove the crankshaft pulley to gain access to the damper adapterbolts. Torque the bolts to 215 +/- 40 n/m.
Note: In D9 & D10 applications, the bellyguard will need to be removed. Illustration 1OWNER NOTIFICATION
U.S. and Canadian owners will receive the attachedOwner Notification.SERVICE CLAIM ALLOWANCES
Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
100% 100% 0 0 0 0
Group 1: This is a 1.0 hour job. InD9 applications, this is a 4.0 hour job. Group 2: Without V Belts installed, thisis a 1.0 hour job. With V Belts installed, this is a 2.0 hour job. In 773applications, this is a 3.0 hour job. In D10 applications, this is a 6hour job.Note: If Group 1 or Group 2 Engines have beeninstalled in an enclosure or other limited access application, additionallabor hours must be justified. Group 3: This is a 1.0 hour job. If theengine has been installed in 988 applications, this is a 3.0 hour job. Group 4: Without V Belts installed, thisis a 1.0 hour job. With V Belts installed, this is a 2.0 hour job. If theengine has been installed in 657, 773 and 775 applications, this is a 3.0hour job. In D10 applications, this is a 6 hour job. For Group 3 and Group 4 submit the claimusing the 99Z021 as the serial number and put the engine serial numberin the "Related Serial Number Field".PARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.MAKE EVERY EFFORT TO COMPLETE THIS PROGRAMAS SOON AS POSSIBLE.Attach. (1-Owner Notification)COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999PRIORITY - PRODUCT IMPROVEMENT PROGRAM FORTIGHTENING THE DAMPER ADAPTOR BOLTSMODELS INVOLVED - CERTAIN 3408, 3408C, 3408E,3412, 3412C, 3412D, 3412E, C27, C32 ENGINES 773E OFF HIGHWAY TRUCKS, ANDD10T, D9R TRACK TYPE TRACTORSDear Caterpillar Product Owner:The damper adaptor bolts need to be inspectedand tightened on the products listed below. You will not be charged forthe service performed.Contact your local Caterpillar dealer immediatelyto schedule this service. The dealer will advise you of the time requiredto complete this service. Please refer the dealer to their Service Letterdated June 3, 2006 when scheduling this service.We regret the inconvenience this may causeyou, but urge you to have this service performed as soon as possible toprevent unscheduled downtime.Caterpillar Inc.Identification #(s)Attached to June 3, 2006 Service Letter