WASHER-HARD 1984776 - Caterpillar

Introduction
For Specifications with illustrations, make reference to Specifications For 3412 Generator Set Engines, Form No. SENR6482. If the Specifications in Form SENR6482 are not the same as in the Systems Operation and the Testing And Adjusting, look at the printing date on the back cover of each book. Use the Specifications given in the book with the latest date.Model Views
Top View Of Engine
Right Side View Of Engine
Front View Of Engine
Rear View Of EngineEngine Information
The Caterpillar 3412 Generator Set Engine uses a microprocessor based electronic engine control to provide electronic governing, automatic fuel ratio control and torque rise shaping. Two communication data links are provided to monitor engine characteristics are provided to monitor engine characteristics and provide diagnostic information.The engine is twin series turbocharged and jacket water aftercooled with direct fuel injection. The engine has a SAE No. "0" (zero) flywheel housing and dual viscous dampers. This engine is designed for either right or left hand service and to fit within a 1220 mm (48 in) width for oil well service-fracturing rig applications.Individual injection pumps and fuel lines, one for each cylinder, meter and pump fuel under high pressure to and injection nozzle for each cylinder.New "collared washer" fuel injection lines are made from high strength steel. They incorporate a collared washer at the end of the fuel line to reinforce fuel line connections and increase system reliability.The 3412 Generator Set Engine has a high capacity fuel system. The plunger area for the new fuel system is increased over other 3400 Family engines. A high injection-rate camshaft, with increased stroke, is also used. This combination of increased plunger area, longer stroke and high injection rate results in a significant increase in injection pressure and volumne, with a reduction in injection duration. This yields higher power output, cleaner combustion, lower smoke levels and improved fuel economy.A full range electronic governor controls the fuel injection pump output to maintain the engine rpm, called for by the throttle position sensor.The cooling system consists of a gear driven centrifugal pump, with two thermostats which regulate the coolant temperature. A customer supplied fan drive and cooling system (radiator) is required.The engine lubricating oil, which is both cooled and filtered, is supplied by a gear driven pump. Bypass valves provide unrestricted flow of lubrication oil to the engine parts when oil viscosity is high, or if either the oil cooler or the oil filter elements should become plugged.Engine efficiency and engine performance depend on adherence to proper operation and maintenance recommendations, and the use of recommended fuels and lubrication oils.Follow the recommended Maintenance Management Schedule with emphasis on air cleaner, oil, oil filter, fuel and fuel filter maintenance found in the Operation & Maintenance Manual.Starting The Engine
The Electronic Control equipped engine may need to crank slightly longer than a mechanically governed engine, because some oil pressure is required for the electronic actuator to move the rack. The check engine light should be ON while the engine is cranking, but should GO OUT, after engine oil