New Governor Drive Gears And Weight Assemblies{1264}
Usage:
3100 Series, D336, D353, D348, D349, D379, D398, D399 Engines;
G333, G343, G348, G349, G379, G398, G399, 3304 And 3306 Natural Gas Engines;
1676 Truck Engines
Description of Change: A new gear assembly and weight assembly are now used in the governor drive groups on the above engines. The new gears in these assemblies are hardened to permit a longer service life. The number of teeth and the pitch of the new gears are different, so that they can not be used with the former gears. The former gears were not hardened.
Adaptable As: The new parts, when used together, are direct replacements for the former parts. The new and former parts are shown in the chart.
Caterpillar Information System:
1983/08/22 Improved Voltage Regulator Assembly Now Used{4450,4467}
1983/08/22 New Differential Pinion And Ring Gear Make Less Noise{3280}
1983/08/15 Replacement Parts And Service For 6V3021 Crimping Tool And 6V3022 Cable Cutter{0610}
1983/08/15 New Water Seals Used In Cylinder Head Groups{1115,1101}
1983/08/15 New Fuel Ratio Control Group Has Improved Diaphragm{1278,1257,1251}
1983/08/15 Troubleshooting Engine Vibration; Damper Adapter Can Be Changed{1205,1000}
1983/08/15 New Bolts And Axle Housings Used{3260}
1983/08/15 Different Discs And Thrower Used In Flywheel Clutch Group To Prevent Damage From Heat{3052}
1983/08/15 3512 Generator Set Engines (1500 And 1800 RPM) Must Use Flywheel Balance Weights{1156}
1983/08/15 Digital Tachometer Available{7462}
1983/08/15 Recommendations To Avoid Piston Seizures{1214,1213,1215}
1983/08/15 Repair Of Damaged Threads{0660}
1983/09/05 New Grease Fitting Used In Blade Lift Group{5205}
1983/09/05 Use Of Steering Clutches To Put A Load On An Engine Can Damage Or Destroy The Clutch Discs{4101,4109,0374,1000}
1983/09/05 New Inspection Report Forms Available{0336,0372,7550}
1983/09/05 New Piston Oil Rings{1215}
1983/09/05 6V3100 Engine Timing Indicator Group May Have 6V9710 Or 6V2192 Transducer{0651}
1983/09/05 Engine Maintenance Information Films Available{1318,1352,0375}
1983/09/12 New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches{3055}
1983/09/12 New Grease Lines Groups Make Lubrication Of Front And Rear Suspension Cylinders Easier{7201,7113}
1983/09/12 Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}
1983/09/26 Oil Shield And Rotocoil Must Be Installed Together For Acceptable Oil Control{1109}
1983/09/26 Service Information For Woodward Governors{0374,1264}
1983/09/26 New Cover Assemblies For Transmission Hydraulic Controls Permit Better Access to Pressure Fittings{3150}