SWITCH AS-PRESSURE 1013084 - Caterpillar

The 3054E and the 3056E Industrial Engines are designed for the following applications: machine and industrial mobile equipment. The engines are available in the following types of aspiration:
Turbocharged aftercooled
Turbocharged
Naturally aspirated 3054E engineEngine Specifications
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.
Illustration 1 g00662980
3056E
(A) Exhaust valves
(B) Inlet valves
Illustration 2 g00577193
3054E
(A) Exhaust valves
(B) Inlet valves
Table 1
3056E Industrial Engine Specifications
Operating Range (rpm) 1500 to 2800(1)
Number of Cylinders 6 In-Line
Bore 100 mm (3.9 inch)
Stroke 127 mm (5.0 inch)
Aspiration Turbocharged aftercooled
Turbocharged
Compression Ratio TA and T 17.25:1
Displacement 6 L (365 in 3)
Firing Order 1-5-3-6-2-4
Rotation (flywheel end) Counterclockwise
Valve Lash Setting (Inlet) 0.20 mm (0.008 inch)
Valve Lash Setting (Exhaust) 0.45 mm (0.018 inch)
(1) The operating rpm is dependent on the engine rating and the application.
Table 2
3054E Industrial EngineSpecifications
Operating Range (rpm) 1500 to 2800(1)
Number of Cylinders 4 In-Line
Bore 100 mm (3.9 inch)
Stroke 127 mm (5.0 inch)
Aspiration Turbocharged aftercooled
Turbocharged
Naturally aspirated
Compression Ratio NA 19.3:1 NA
T 18.2:1 T, TA
Displacement 4.4 L (268 in 3)
Firing Order 1 3 4 2
Rotation (flywheel end) Counterclockwise
Valve Lash Setting (Inlet) 0.20 mm (0.008 inch)
Valve Lash Setting (Exhaust) 0.45 mm (0.018 inch)
(1) The operating rpm is dependent on the engine rating and the application.Electronic Engine Features
The Caterpillar 3054E and the 3056E Industrial Engines are designed with 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 and auxiliary monitoring
Engine speed governing
Cold start strategy
Automatic air/fuel ratio control
Integrated ether start
Torque rise shaping
Automatic altitude compensation
Fuel temperature compensation
Injection timing control
System diagnosticsFor more information on electronic engine features, refer to the Operation and Maintenance Manual, "Features and Controls" topic (Operation Section).Engine Diagnostics
The engine has built-in diagnostics in order to ensure that all of the components are functioning properly. In the event of a deviation from the programmed limits, the operator will be alerted to the condition by a "DIAGNOSTIC" lamp that is mounted on the dashboard. Under certain conditions, the engine horsepower and the vehicle speed may be limited. A Caterpillar Electronic Technician (Cat ET) may be used to display the diagnostic codes.There are three types of diagnostic codes: active, logged 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. The functionality of electronic governor is similar to the Caterpillar mechanical governor, but the electronic governor includes additional features.Engine Cooling and Lubrication
The cooling system consists of the following components:
Gear-driven centrifugal water pump
Water temperature regulators which regulate