1990/10/29 Caterpillar


Governor Control Motor Polarity May Require A Change{1265,1408,7556}

Usage:


3304 (10E, 8DD, 4XB ),
3306 (64Z, 7JB ),
3406 (90U ),
3406B (6TB ),
3408 (67U ),
3412 (38S ) Industrial Engines;
3304 (13E ),
3306 (84Z ) Marine Engines;
3114 (6AF, 5JG ),
3116 (2SG, 1NJ ),
3304 (83Z, 3TC ),
3306 (85Z, 1RD, 1DG, 5JC ),
3406 (75Z ),
3406B (2WB, 3SF, 4RG ),
3408 (78Z ),
3412 (81Z, 5AG ) Generator Set Engines

The 28 volt DC 4W7773 Motor Assembly is used in the 7E0743, 8N2365, 2W3469, and 4W9186 Governor Control Groups. The motor may have incorrect polarity in the Sure Seal® connector. A motor with the CORRECT polarity will raise and lower according to specification. However, if the motor functions opposite of what it should, the polarity is incorrect and must be reversed.

Caterpillar Information System:

1990/10/29 New Temperature Regulators Prevent Engine Overheating{1355}
1990/10/29 New CE (Caterpillar Environmental) Family Of Metal-Shell Connectors Used{7553}
1990/10/22 New "On Engine" Adjustment Procedure For 3161 Woodward Governor {1264,0782}
1990/10/22 Increased Capacity Oil Sumps Require Additional Oil And Different Maintenance Interval {1302,1318,7524,7525}
1990/10/22 Front Trunnion Bolts May Come Loose {1153,1154}
1990/10/22 Improved 7C1757 Exhaust Manifold Group {1059}
1990/10/22 Setscrew And Nut Available For Fuel Setting And Injector Synchronization {1257}
1990/10/22 Correct Procedure To Check For Grounds On Woodward 9905 Series, 2301A Control; Correction For Service Manual Module; 2301A Electric Governors (Load Sharing) For Generator Set And Industrial Engines; Form SENR3585-01 {1289}
1990/10/22 Engine Service Training Literature Uses New Form Number {0370,0374}
1990/10/22 New 4C5084 Oil Filter Cutter Replaces Former 6V7905 Filter Cutter {1318,1261,5068}
1990/10/22 4C6600 Battery Voltmeter For Determining Battery Percent Of Charge {7468,0785,1401}
1990/10/22 Improved 3T2357 Horn Switch, 3T3453 Starting Aid Switch, 3T3947 Start Switch, 3T8514 Test Switch Assemblies {1416,1456}
1990/10/29 New Bearing Kits Used In Turbocharger Cartridge Groups{1052,7551}
1990/10/29 Modification Of 1U7791 Valve Seat Driver{0782,1103}
1990/10/29 New Cylinder Head Gasket And Higher Cylinder Head Bolt Torque{1124,1101}
1990/10/29 Improved 7W7730 Cylinder Head Gasket Provides Better Sealing Capability{1124}
1990/11/05 New Composite Halogen Headlights And Floodlights Available{1429,1434}
1990/11/05 Obsolete Capacitor In VR1 Voltage Regulators{4467}
1990/11/05 New Exhaust Manifold Gasket And Locks Used In Exhaust Manifold Groups{1059}
1990/11/05 New Stronger Exhaust Valve Push Rod Used In Valve Mechanism Groups{1208}
1990/11/05 Some Components Of The 7E3580 Engine Adapter Group For Allison AT545, MT543D, And MT653DRD Transmissions Are Not Serviced By Caterpillar{3279,1013,3009}
1990/11/05 Service Manual SENR3479-04 Available For Troubleshooting Engine Test Procedures{1901,1900}
1990/11/05 New Crankshaft Seal Groups Used{1160,1161,1202}
1990/11/12 New 7X1400 Digital Diagnostic Tool (DDT) Group Available {0782,0785,1900}
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