Higher Capacity Auxiliary Pump Group Is Now Available{1371}
Usage:
3412 Industrial And Marine Engines ( 38S, 60M)
Description of Change: A new auxiliary pump group is available for use on 3412 Industrial and Marine Engines equipped with a heat exchanger. The new pump will give enough flow to prevent engine overheating during operation in sea water which is warmer than 29°C (85°F).
With the standard auxiliary pump, overheating can sometimes be a problem when the temperature of the sea water is warmer than 29°C (85°F).
Adaptable To: The new 5N7491 Auxiliary Pump Group can be used as a direct replacement for the standard 3N8561 Auxiliary Pump Group.
Caterpillar Information System:
1980/08/11 Carbon Cutting On Thrust Side Of Piston Top Land Is Normal Condition For Pistons With Offset (Not In Center) Pin Bores{1213,1214}
1980/08/11 Improved Power Takeoff Service Kits{3055}
1980/08/11 New Single Key Lock System Uses The Same Standard Key For All Locks{7300,7550}
1980/08/11 Improved Piston Ring Used At Turbine End Of Turbocharger{1052,1053,1077}
1980/08/11 New Oil Filter Base Has Larger Oil Passages; Some Bases Need Modification{1306}
1980/08/11 6V2196 Microscope Available For Inspection Purposes{0653}
1980/08/11 6V3030 Digital Multimeter, 6V3031 Case And 6V3032 Test Lead Kit Are Now Available For Troubleshooting Electrical Circuits And Components{0651}
1980/08/04 Pistons Which Use Keystone-Type Rings Can Be Installed In Place Of Pistons Which Use Rectangular-Type Rings{1215,1214,1213}
1980/08/04 The Service Publications Information Feedback System{0374}
1980/08/04 New Bend Specification For Used Or Field Reground Crankshafts{1202}
1980/07/14 Some Nuts Used On Main Bearing Caps Are Smaller Than Standard Size Across The Flat Sides{1203}
1980/07/14 Two New Front Power Take-Off Groups Are Available{3055}
1980/08/18 Alcohol Fuels Are Not Recommended For Use In Caterpillar Diesel Engines At The Present Time{1280,0374}
1980/08/18 Some Valve Lifter Assemblies Have A Black Color On The Finished Surface{1209}
1980/08/25 Service Meter Correction Decal Available{7478,7480}
1980/08/25 Vibration Isolators Used With Vacuum Switches For Air Filter Service Indicators{7452,1051,1054}
1980/08/25 Special Bolts Available For Better Protection Against Modifications Of Fuel System And Governor Settings{1264,1278}
1980/09/01 Four Fabricated Tools Available For Use During Disassembly And Assembly Of Piston-Type Hydraulic Motors{5058,0622}
1980/09/01 6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01 6V2119 Profile Tool Group Is Available For Inspection Of All Crankshafts In Caterpillar Engines{0653,1202,1203,1219,1230}
1980/09/01 CAUTION: Procedure For Adjustment Of Fuel Rack Setting On Hydramechanical Governors Has Been Changed{0654,1250}
1980/09/01 5P1746 Governor Sealing Tool Available Separately{0620,1264,1286}
1980/09/08 Cartridge Repair Kit Available For AiResearch Turbochargers{1052,1053}
1980/09/08 Oil Pump And Lines Group Changed To Use Different Method Of Flow Control For Emergency Lubrication System{3310,3311}