1990/10/22 Caterpillar

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}

Usage:

Refer to Page 22, under the headings "Initial Checks & Adjustments Section; Check For Grounds". This procedure is not identified correctly, nor is it the correct procedure for the Woodward 9905 Series, 2301A Control. The procedure is correct ONLY for the Woodward 8272 Series, 2301A Control. The correct procedure for the Woodward 9905 Series, 2301A Control follows.

1. With the power off, measure the resistance between Terminals T11 and T15. The resistance should be infinite.

If the resistance is NOT infinite, remove the connections from each terminal, one at a time, until the resistance becomes infinite. Check the line that was removed last to locate the fault. Correct the problem before proceeding.

On Pages 61-63, the entire "PROCEDURE M-Phasing Procedure" is incorrect for a Woodward 2301A Load Share Control. However, it IS correct for a 2301 Load Share Control. For the correct procedure for a 2301A Control, refer to the "Phase Correction Procedure" in the Woodward Installation, Operation And Calibration Manuals 82389, or 82312. Service Procedure M will be corrected at the next revision.

Caterpillar Information System:

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}

1990/10/15 New Temperature Regulators; Regulator Service Hours Changed{1330,0770,1355,7527,7543}

1990/10/15 Additional Clip And Hardware Prevent Damage To Fuel Line Of 4W6887 Instrument Panel{1261}

1990/10/15 Be Sure To Use Only 5P3975 Rubber Lubricant On The Core Assembly End Seals In Folded Core Or Multiple Row Module Radiators{1353,1351}

1990/10/08 New Pump Group With Bolt Dampers Used In Oil Pump Group{1304}

1990/10/08 Price Adjustments On Service Program Modules{1902,0782}

1990/10/08 New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads{1105,1101}

1990/10/08 Improved 4J3815 Gasket Helps Prevent Oil And Air Leaks In Hydraulic Tank Mounting And Filler Groups{5065}

1990/10/08 Serviced Parts Available For 8C4773 Electric Starting Motor Group{1453}

1990/10/22 Setscrew And Nut Available For Fuel Setting And Injector Synchronization {1257}

1990/10/22 Improved 7C1757 Exhaust Manifold Group {1059}

1990/10/22 Front Trunnion Bolts May Come Loose {1153,1154}

1990/10/22 Increased Capacity Oil Sumps Require Additional Oil And Different Maintenance Interval {1302,1318,7524,7525}

1990/10/22 New "On Engine" Adjustment Procedure For 3161 Woodward Governor {1264,0782}

1990/10/29 New CE (Caterpillar Environmental) Family Of Metal-Shell Connectors Used{7553}

1990/10/29 New Temperature Regulators Prevent Engine Overheating{1355}

1990/10/29 Governor Control Motor Polarity May Require A Change{1265,1408,7556}

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}