1992/04/20 Caterpillar

New Spring Used In Governor Control Groups{1265}

Usage:

225D ( 2SJ ),
231D ( 5WJ, 1NK ) Excavators;
613 ( 71M ),
613B ( 38W ),
613C ( 92X ) Tractors;
CB-614 ( 7CD ),
PS-500 ( 7XD ) Compactors;
3208 ( 90N, 03Z ) Industrial;
3208 ( 01Z ) Marine;
3208 ( 29A, 30A, 5YF ) Generator Set;
3208 ( 40S, 32Y, 02Z, 51Z ) Truck Engines

Description of Change: A new spring is used in the governor control groups. The spring rate on the former spring is too low to insure that full power is reached on higher engine ratings. The former spring may be responsible for some "low power" complaints. The new spring is stronger than the former spring.

Location of new 6I1810 Spring in typical governor control group.

Adaptable To: The new 6I1810 Spring is a direct replacement for the former 7C0951 Spring in the governor control groups used on the above machines and engines. The new 6I1810 Spring is formed with square wire, while the former 7C0951 Spring is formed with round wire.

Caterpillar Information System:

1992/04/13 Be Sure 8N2001 Oil Filter Base Is Correctly Installed{1306}

1992/04/13 New Cylinder Kits Available{1213}

1992/04/06 New Bracket Assembly Added To Exhaust Manifold Group {1059}

1992/04/06 High Capacity Oil Pan Available {1302}

1992/04/06 New Turbocharger Groups With Ceramic Turbine Wheels Used {1052}

1992/04/06 New And Improved Operation And Maintenance Manuals Available {0374}

1992/04/06 New PRELUB Systems Available For Medium To Large Caterpillar Construction Equipment {1319}

1992/04/06 New Caterpillar Engine Oil Nomenclature {0374,0645,1300}

1992/04/06 Engine Oil Recommendations Have Been Changed {0374,1300}

1992/04/06 9U5839 Liquid Gasket Material Available For Use With Aluminum {0649,0648}

1992/04/06 Procedure For Putting 9U5839 Liquid Gasket Material On Cylinder Liner {1216}

1992/03/23 New Utility Voltage Pickup And Dropout Adjustment Range For Contactor Type Automatic Transfer Switches {4450}

1992/04/20 Changed Pictograph Symbols For EMS and CMS{7490,7400}

1992/04/20 Newer Oil Formulations For Caterpillar Engines{0374,1300}

1992/04/20 Be Sure To Use Correct Installation Procedure For Core Plug Block Heaters (Engine Coolant Heaters){1383}

1992/04/20 Procedure To Repair Damaged Oil Pan Drain Hole Threads{1302}

1992/04/20 Identification Of Remanufactured Direct Injection Fuel Nozzles (DIFN){1254}

1992/04/20 Component Cross Reference Lists For Programed Electronic Engine Control (PEEC) Systems{1900}

1992/04/20 Improved Woodward PSG Governor Groups And Improved Carburetor Control Groups Provide Improved Governor To Carburetor Linkage Control{1264,1265}

1992/04/20 New Auxiliary Sea Water Pump Group Available{1371}

1992/05/11 Troubleshooting 04 Diagnostic Code On Electronic Modular Control Panels (EMCP){4490,4450}

1992/05/11 Procedure for Cleaning an Engine Lubrication System when Contaminated with Engine Coolant Containing Antifreeze{1300,1350}

1992/05/11 New Components In Aftercooler Water Lines Group Help Reduce Vibration{1380}

1992/05/18 Fuel Injector Group Rack Movement{1290}