1986/04/21 Caterpillar

New Alternators Are Self-Energizing And Have Built-In Regulators{1405}

Usage:

All Caterpillar Industrial, Marine, And Truck Engines

Description of Change: New 12 volt and 24 volt alternators are used on Industrial, Marine, and Truck Engines. These new alternators are self-energizing and have a built-in regulator. Repair parts for the former alternators and regulators will continue to be serviced.

Adaptable As: The new alternators are a direct replacement for the former alternators when used as shown in Charts A and B. When a former alternator is replaced with a new alternator, tape the wires from the former regulator or remove the regulator. The regulators are not needed with the new alternators which have a built-in regulator. When connecting the wires to the new alternators, connect only the B+ output and the B- ground wires. The orange wire to the oil pressure switch is no longer needed since the new alternators are self-excited.

The serviceable parts for the new alternators are shown in Illustrations 1 and 2 and listed in Charts C and D.

Illustration 1. Location of Items 1 through 15.

Illustration 2. Location of Items 16 through 20.

Caterpillar Information System:

1986/04/07 Bleed Screw Washer (Seal) Must Be Replaced If Bleed Screw Removed From Fuel Nozzle{1254}

1986/04/07 New Index Lists Engine Special Instructions By SMCS Code{1000,0374}

1986/04/07 Fuel Injection Timing Changed To 15° With New 3.5° Timing Advance{1206,1272,1292}

1986/04/07 New Bracket Used In Air Compressor Lines Group{1803,1804,1800}

1986/04/07 Troubleshooting Solid State Suppressors{4467,4466,4450}

1986/04/07 Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}

1986/04/07 Requirements For Shipping Wet Batteries In The U.S.{1401,7500}

1986/03/24 Incorrect Connection Of Battery Charger Can Open Circuit Breaker And Damage Woodward 2301 Governor Control{1400,1401,4450}

1986/03/24 Improved Cylinder Head Gasket{1101,1201}

1986/03/24 Screens Added To Inlet Air Manifolds{1058}

1986/03/24 New Air-To-Air Aftercooler Arrangements Used On Truck Engines{1063}

1986/03/24 Use The Configuration Number To Order Parts For Articulated Dump Trucks{7567}

1986/04/21 Silicone Rubber Hoses Available For Engine Oil Cooler Water Lines{1378,1380}

1986/04/21 New Tool Available To Measure Propeller Pitch{0600,3305}

1986/04/21 Three Element Speed Switch Replaces Dual Element Speed Switch{7418,7411,7410,7421}

1986/04/21 Correct Position Of The Bleed Hole In The Fuel Line Adapter{1252}

1986/04/21 Fittings Added To Jacket Water Heater Hose To Prevent Interference With Folded Core Radiator{1353,1383}

1986/04/21 New Wire Assemblies And Spark Plug Insulators Improve Service Life Of Ignition System{1558,1555,1552,1408}

1986/04/21 New Conversion Groups Available To Convert From Hydramechanical Governors To Woodward PSG Governors{1289}

1986/04/21 Use Care When Removing Oil Pan And 9N3167 Plate{1302}

1986/05/05 New Publication Lists Service Manual Modules for Caterpillar Earthmoving And Engine Service Manuals{0374,0375}

1986/05/05 Be Sure The Polarity Of The Electrical Connector On EG3P Woodward Actuator Assembly Is Correct{1265,1250}

1986/05/05 Portable Hydraulic Pump Group Available{0600}

1986/05/05 FT Tooling Prints Available For Bushing Installation In Governor Housing{0600,1287}