1987/09/01 Caterpillar


New Alternator Group Used In Charging Alternator Groups

Usage:


3208 (32Y, 40S, 51Z, 2Z) Truck Engines

Description of Change: A new alternator is used in the charging alternator groups on 3208 Truck Engines. The former Delco-Remy alternators were discontinued by the manufacturer.

Adaptable As: The new 8T9700 Alternator (Nippon Denso) replaces the former 6Y1194 and 9G6079 Alternators (Delco-Remy) in the charging alternator groups on the above engines. The chart lists the new and former alternators, the charging alternator groups, the engine models, and engine serial number prefixes. When a new 8T9700 Alternator is used to replace a former 6T1194 or 9G6079 Alternator:

... The wire that was connected to terminal 2 of the former alternator (see the illustration) is not used with the new alternator.
... The diode in the line that was connected to terminal 1 of the former alternator (see the illustration) is not required for the new alternator. The new alternator will work with the diode present, but the diode is not needed.
... The alternator terminal, identified as "1" in the illustration, is marked "1G" on the new alternator.


Starting and charging circuit schematic.

Caterpillar Information System:

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1987/09/01 New 8T8726, 8T8694 And 8T8695 Adapter Cable Assemblies Available
1987/09/01 New 8T8697 Electronic Control Analyzer Programmer (ECAP), 8C5919 Electronic (ECAP PEEC) Conversion Group and 8T5275 Adapter Cable Assembly (T-Harness Cable) Available
1987/09/01 New 8T5282 Programmable Electronic Engine Control Digital Diagnostic Tool Group (PEEC DDT) Available
1987/09/01 Mid-Life Bearing Maintenance Recommendations
1987/09/01 Recommendations For Preventing Cooling System Damage
1987/09/01 New Turbochargers Have Several Improvements
1987/08/01 Remanufactured Turbocharger Groups And Cartridges
1987/08/01 List Of Service Publications
1987/09/01 New Hydraulic Steering Mounting Group Available
1987/09/01 Remanufactured 3208T Economy Truck Engine Available
1987/09/01 Four More Remanufactured Fuel Pump And Governor Groups Available
1987/09/01 Improved Warranty For Remanufactured Parts And Components
1987/10/01 New Steel Fuel Injection Pump Lifters Should Not Be Mixed With Aluminum Lifters
1987/10/01 New Special Instruction, "using The PEEC Screen Map(s) "
1987/10/01 Either Type Sleeve Satisfactory For Governor Servo Piston
1987/10/01 Check Plastic Water Sleeve If Engine Experience Severe Overheating
1987/10/01 Caterpillar Announces Ambassador Club For Dealer Personnel In The U.S.
1987/11/01 New Service Tools Available
1987/11/01 New Air Powered Scraper Available For Gasket Removal
1987/11/01 New 8C9705 12 Volt Converter Available To Power The 8T8697 Electronic Control Analyzer Programmer ECAP)
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