Operation and Maintenance Manual

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22 SEBU8180-01 Product Information Section Model Views Illustration 20 Rear right engine view (15) Alternator (16) Exhaust manifold (17) Turbocharger (18) Wastegate solenoid Note: The primary fuel filter may be mounted off the engine. Engine Description SMCS Code: 1000 The Caterpillar C-4.4 Industrial Engine has the following characteristics: • In-Line4cylinder • Four stroke cycle • Turbocharged • Turbocharged aftercooled (19) Drain plug or coolant sampling valve (20) Starting Motor (21) Oil drain plug (22) Primary fuel filter i02872108 (23) Hand fuel priming pump (24) Flywheel (25) Flywheel housing Engine Specifications g01430282 Note: The front end of the engine is opposite the flywheel end of the engine. The left and the right sides of the engine are determined from the flywheel end. The number 1 cylinder is the front cylinder.
SEBU8180-01 23 Product Information Section Model Views • Engine monitoring • Engine speed governing • Control of injection pressure • Cold start strategy • Automatic air/fuel ratio control • Torque rise shaping • Injection timing control • System diagnostics For more information on electronic engine features, refer to the Operation and Maintenance Manual, “Engine Features and Controls” topic (Operation Section). Illustration 21 (A) Exhaust valve (B) Inlet valve Table 1 C-4.4EngineSpecifications Operating Range (rpm) 700 to 2640 (1) Arrangement and Cylinders Bore Stroke Aspiration In-Line 4 cylinder 105 mm (4.13 inch) 127 mm (5 inch) g01187485 Turbocharged, Turbocharged aftercooled Compression Ratio 16.2:1 Displacement 4.4 L (269 in 3 ) Firing Order 1-3-4-2 Rotation (flywheel end) Valve Lash (inlet) Valve Lash (exhaust) Counterclockwise 0.35 mm (0.013 inch) 0.35 mm (0.013 inch) (1) The operating rpm is dependent on the engine rating, the application and the configuration of the throttle. Electronic Engine Features The Caterpillar C-4.4 Engine is designed for electronic controls. The integral on board computer controls the operation of the engine. Current operating conditions are monitored. The Electronic Control Module (ECM) controls the response of the engine to these conditions and to the demands of the operator. These conditions and operator demands determine the precise control of fuel injection by the ECM. The electronic engine control system provides the following features: Engine Diagnostics The engine has built-in diagnostics in order to ensure that the engine systems are functioning correctly. The operator will be informed of any change to a programmed limit. The operator will be alerted to the condition by a “Stop or Warning” lamp that is mounted on the dashboard. Under certain conditions, the engine horsepower and the vehicle speed may be limited. The Caterpillar Electronic Technician (ET) maybeusedtodisplaythediagnosticcodes. There are three types of codes: active diagnostic, logged diagnostic, and event. Most of the diagnostic codes are logged and stored in the ECM. For additional information, refer to the Operation and Maintenance Manual, “Engine Diagnostics” topic (Operation Section). The ECM provides an electronic governor that controls the injector output in order to maintain the desired engine rpm. Engine Cooling and Lubrication The cooling system consists of the following components: • Gear-driven centrifugal water pump • Water temperature regulator which regulates the engine coolant temperature • Gear-driven oil pump • Oil cooler
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Product and Dealer Information Note
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