New Bearing Used On Main Shaft{3303}
Usage:
7271 Marine Transmissions
Description of Change: A new roller bearing is now used in the main shaft group on 7271 Marine Transmissions. The new bearing has a different cage design which will improve the service life of the bearing.
Adaptable As: The new 6V7968 Bearing is a direct replacement for the former 3N3814 Bearing which is canceled.
Caterpillar Information System:
1983/09/26 Service Information For Woodward Governors{0374,1264}
1983/09/26 Oil Shield And Rotocoil Must Be Installed Together For Acceptable Oil Control{1109}
1983/09/12 Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}
1983/09/12 New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches{3055}
1983/09/12 New Larger Auxiliary Sea Water Pump Operates At Lower RPM{1371}
1983/09/05 Engine Maintenance Information Films Available{1318,1352,0375}
1983/09/05 Vent Hole In Water Temperature Regulator Cover Removed{1355}
1983/09/05 6V3100 Engine Timing Indicator Group May Have 6V9710 Or 6V2192 Transducer{0651}
1983/09/05 New Piston Oil Rings{1215}
1983/09/05 Larger Oil Pump Used To Give Better Clutch Cooling And Bearing Lubrication{3310,3302,3307}
1983/09/05 Replacement Counterweights And Information For Replacement Of Counterweights And Balancing The Crankshaft{1202,0652}
1983/09/05 Service Information Available For Altronic Ignition System{1552}
1983/09/26 Product Identification Number To Replace Serial Number On Earthmoving Equipment{7557}
1983/10/03 Use 6V6070 Tool Group And New Adjustment Procedure For New Scroll Fuel System{0654,1264,1278}
1983/10/03 New Oil Pump Has Bypass Valve And Oil Return Passage Inside The Pump{1304}
1983/10/10 S.O.S Program Synopsis{1318,5068,3179,0652}
1983/10/10 New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10 Changes Made To Identification Marks On Connecting Rod Assemblies{1218}
1983/10/10 New Service Centers For 6V3100 Engine Timing Indicator Group{0651}
1983/10/10 New Water Pump Oil Seal Prevents Leaks{1361}
1983/10/17 Broken Edge Filter Or Plugged Cylinder Head Adapter Can Cause Rough Engine Operation Or Low Power{1252}
1983/10/17 Changes Made To Air Intake Shut-offs And Contactor Groups{1078}
1983/10/17 New Air Starting Motor Has A Slip-Clutch Type Drive Gear{1451}
1983/10/17 Improved Lower Shaft Bearing Now Used{3307}