1988/08/22 Caterpillar

New Alternator With Built-In Regulator Used{1405}

Usage:

All CBSA Built Machines With 3300 Family Of Engines

Description of Change: A new alternator with an integrated solid state voltage regulator is used on all CBSA built machines (see the chart for the models) with 3300 Family of Engines. The new alternator also has increased output capability (21 Amp verses 17 Amp) and two bearings instead of one on the rear end of the rotor assembly. The new alternator will provide increased capacity and reliability to the electrical system.

Adaptable As: The new 2Y8310 Alternator Group replaces the former 2Y4212 Alternator Group and separate 2Y2929 Voltage Regulator on all CBSA built machines with 3300 Family Engines. The new alternator is in effect as shown in Chart A. If a new 2Y8310 Alternator Group is used to replace a 2Y4212 Alternator Group and 2Y2929 Voltage Regulator, the wires that connected the regulator to the alternator must be taped and the former voltage regulator must be removed.

The serviced components of the new 2Y8310 Alternator Group are shown in the illustration and listed in Chart B.

Serviced components of the 2Y8310 Alternator Group.

Caterpillar Information System:

1988/08/22 Improved Turbochargers Used{1052}

1988/08/22 New Fuel Tank Repair Kit Available For Repairing Plastic Or Nylon Fuel Tanks{0649,1273}

1988/08/22 Steering Lock Clamp Used Instead Of Link And Eyes To Prevent Machine Articulation{7050,7058}

1988/08/22 New Speed Switch Used In Torque Converter Lockup Circuit{3104,7300}

1988/08/22 New Hour Meter Film (Decal) Available For Challenger 65 Tractors{7480}

1988/08/22 New Hydraulic Quick Coupler Assembly For Implements{5057}

1988/08/22 New Mounting Brackets For Hydraulic Hose Bulkhead Fittings Used In Sliding Frame Group{5057}

1988/08/22 Additional Parts Now Needed To Convert To Four Wheel Drive{3176,3250}

1988/08/22 New Detent Springs Used In Direct Drive Transmission Groups{3070}

1988/08/22 New Brake Pedal Return Springs Used In Brake Control Group{4111}

1988/08/15 Wider Main Bearing Cap And Higher Torque On Cap Bolts{1201}

1988/08/15 Correct Oil Capacities For Rear Drive Axle Components{3250,3258,4050}

1988/08/29 How To Determine If Relays Are Functioning Correctly {1400,1422}

1988/08/29 Static-Type (Nonsuspension) Seat Available {7312}

1988/08/29 New Drain Port In Torque Converter Filter Base {3164,3169}

1988/08/29 New Front Suspension Cylinder Rod Has Longer Service Life {7201}

1988/08/29 Use 6V6640 Sealant For Gasket Material In Transmissions And Differentials {3006,3200,3258,7555}

1988/08/29 New Fuel Injector Group Used {1251}

1988/09/05 New Rocker Arm Shaft Assembly and Bolts Used{1102}

1988/09/05 New Piston Cooling Jets Used{1331,1200}

1988/09/05 Improved Engine Exhaust Manifolds Used{1059}

1988/09/05 New Oil Level Gauge Used{1326}

1988/09/05 Pressure Taps Added To Hoist Oil Lines Group{5083,5057}

1988/09/05 Lists Of Duo-Cone Seals And Oil Recommendations{3258,4050,4208}