New Electronic Actuator Group Provides Improved Reliability{1050,1250,1900}
Usage:
G3606 (3XF79-Up),
G3608 (4WF50-Up),
G3612 (1YG104-Up),
G3616 (4CG67-Up) Engines
Description of Change: A new electronic actuator group is used on these engines. This new actuator group includes:
-
- * Improved electrical heat sink insulation.
- * Improved output shaft support.
- * Improved sealing to help prevent moisture damage.
- * Improved electrical heat sink insulation.
These improvements result in increased actuator reliability.
Adaptable To: The new 143-7689 Electronic Actuator Group is a direct replacement for the former 6I-0581 Electronic Actuator Group. The former actuator group is canceled. The new actuator group is in effect as shown above and adaptable to all earlier engines. The new 143-7689 Electronic Actuator Group is used in the following groups:
Caterpillar Information System:
1997/03/01 Improved Fan Spider Assembly Available{1356}
1997/03/01 New Gasket Used In Aftercooler Groups{1063}
1997/03/01 New Adapters In Turbocharger Groups Provide Improved Sealing Between The Turbocharger And Exhaust Elbow{1061,1065}
1997/03/01 New Gasket Used In Turbocharger Groups{1052,1061}
1997/03/01 New "E" Rating Of 1350 Horsepower Available For 3412C High Performance Marine Engine{1902}
1997/03/01 New Terminal-Mounted Resistor Assembly Allows Proper Loading Of Digital Diagnostic Tool Data Line{1417}
1997/03/01 The Components Of The 7C-5001, 100-8227, And 104-6775 Gas Pressure Regulator Groups Are Available For Parts Service{1270}
1997/03/01 Improvements Made To Remanufactured 0R-3008 Fuel Transfer Pump{1256}
1997/03/01 Improved Bushing O-Ring Seal Available For Injection Pump Groups{1251}
1997/03/01 4C-8180 Timing Tool Group Required For Checking And Adjusting Fuel Injection Timing On 3408C And 3412C High Performance Marine Engines{1250}
1997/03/01 Marine Transmission Oil Pressure Sensor Location{3323}
1997/03/01 Product Support Literature Available{0374,1000}
1997/03/01 Valve Rotator Inspection{1109}
1997/03/01 New Procedure For Tightening Bolts On Center Cluster Stub Shaft And Camshaft Idler Stub Shafts In Rear Gear Groups{1206,1237}
1997/03/01 Improved Junction Box Group (Inline){7451}
1997/03/01 New Software For Customer Communications Module (CCM){1920,1926}
1997/04/01 New "Fuel System Reuse And Salvage Guides" Reference Manual Available{1250}
1997/04/01 Low Idle Adjustment, Additional "Buffer" Spring Adjustment Screw Used On Marine Governors{1264}
1997/04/01 132-3904 Camshaft Retainer Holds Camshaft In Cylinder Head{1100}
1997/04/01 New Exhaust Manifold Sections Have Locations To Install Temperature Sensors{1059}
1997/04/01 New Single Piece Inlet Valve{1103,1105}
1997/04/01 Serviceable Components Available For 7C-1193 Temperature Control Group (Aftercooler){1063}
1997/04/01 Improved Damper Guard Groups Are Available In Variable Speed Engines{1205}
1997/04/01 Recommendation For Connecting Rod Bearing Replacement{1219}