HOUSING 2S4172 - Caterpillar

Engine Model Views
The sample model view drawings show various typical Caterpillar 3406C Engine features. The drawings are generic and do not reflect all available options. Because of individual applications, your engine may appear different from those illustrated.
Lifting Eye (1), Crankcase Breather (2), Exhaust (3), Fuel Priming Pump (4), Fuel Pressure Gage (5), Ether Starting Aid (6), Fuel Filter (7), Air Inlet (8), Fuel Pump (9), Supplemental Coolant Additive (SCA), Element (10), Oil Level Gauge (Dipstick, 11), Flywheel Housing (12), Service (Hour) Meter (13), Turbocharger (14), Oil Drain Plugs (15), Oil Filler Cap (16), Crankshaft Vibration Damper (17), and Oil Filter (18).Package Generator Set Model View
Water Fill (1), Duct Flange (2), Water Drain (3), Customer Mounting Holes (4), Oil Drain (5), Fumes Disposal Tube (6), Oil Filter (7), Oil Level Gage (8), Oil Filler (9), Air Inlet (10), Customer Mounting Holes (11), Exhaust (12).Engine Information
Engine Descriptions
The Caterpillar 3406B and 3406C Engines are direct fuel injected engines.A mechanical governor controls the fuel injection pump output, maintaining the engine rpm selected by the operator. Individual injection pumps (one for each cylinder) meter and pump fuel under high pressure to fuel injection nozzles. Automatic timing advance provides the best fuel injection timing over the full range of engine speed.The fuel ratio control is located on the governor. The fuel ratio control restricts the fuel rack movement. Only the proper amount of fuel is allowed to be injected into the cylinders during acceleration. This minimizes exhaust smoke.Inlet air is filtered by an air cleaner. The air is compressed by a turbocharger before the air enters the engine cylinders. The turbocharger is driven by engine exhaust. The engine can be turbocharged, or turbocharged with jacket water aftercooling.The engine is a four cycle engine. Each cylinder head has two inlet valves and two exhaust valves. The rocker arms and the valves are actuated by the camshaft. The action is performed by mechanical lifters and push rods.The cooling system consists of:* A thermostat to regulate water temperature* a gear driven centrifugal pump* an oil cooler, and* a radiator (incorporating a shunt system)The engine lubricating oil, which is both cooled and filtered, is supplied by a gear-type pump. Bypass valves provide unrestricted flow of lubrication oil to the engine parts if oil viscosity is high, or if the oil cooler or the oil filter elements become plugged.Engine efficiency, efficiency of emission controls, and engine performance depend on adherence to proper operation and maintenance recommendations. Engine performance and efficiency also depend on the use of recommended coolant/antifreeze, fuels, and lubrication oils. Follow the recommended Maintenance Schedule found in this publication, paying attention to emission related components, air cleaner, oil, oil filter, fuel and fuel filter maintenance.Generator Set Information
Caterpillar Generator Set Diesel Engines may be equipped with the Electronic Modular Control Panel II (EMCP II) and the SR4B Generator.The EMCP II provides accurate and reliable engine and generator control and monitoring.SR4B Generators are designed to match the output characteristics of the engine. Packaged generator sets are designed, manufactured, and