CAMSHAFT 4W1765 - Caterpillar

Engine exhaust contains products of combustion which may be harmful to your health. Always start and operate the engine in a well ventilated area and, if in an enclosed area, vent the exhaust to the outside.
Note: When electric power is cycled, the electronic thermostat will cycle, which will make a unique sound that is a normal sound for a start-up.Note: To operate the engine at different speeds, refer to this Operation and Maintenance Manual, "Engine Operation".Manual Starting
For initial start-up of a new or rebuilt engine, and for start-up of an engine that has been serviced, make provision to shut the engine off should an overspeed occur. This may be accomplished by shutting off the air and/or fuel supply to the engine.
Do not start the engine or move the controls if there is a lock out tag attached. Do not start the engine or operate controls if a "DO NOT OPERATE" or similar warning tag is attached.Ensure that no one will be endangered when the engine is started.
Perform all the procedures that are described in this Operation and Maintenance Manual, "Before Starting Engine" (Operation Section).
Do not engage the starting motor when flywheel is turning. Do not start the engine under load.If the engine fails to start within 30 seconds, release the starter switch or button and wait two minutes to allow the starting motor to cool before attempting to start the engine again.
Refer to Locomotive OEM publications on starting the engine.Starting the Engine After an Overhaul or Major Repair
Use the following guidelines for operation and maintenance after an overhaul or a major repair. Using the guidelines will ensure that the engine is functioning correctly. The procedure for start-up requires approximately 1 hour and 30 minutes.
Perform the procedures that are described in this Operation and Maintenance Manual, "Before Starting Engine" topic (Operation Section).
Operate the jacket water heaters, if installed. Run the prelube pump and allow the lubricating oil to circulate for 10 minutes or less. To operate the prelube pump without starting the engine when the starting oil pressure is reached, perform the following: Access the service override file in Cat electronic technician (ET), override the prelube pump to ON.Note: Running the prelube pump for more than 10 minutes at a time risks overheating the pump electrical motor.To operate the prelube pump without starting the engine when the starting oil pressure is reached, perform the following:
Access the override tile in Cat electronic technician (ET)
Override the prelube pump to ON
During prelube pump operation, use the barring device to rotate the crankshaft for a minimum of two revolutions.
Start the engine. Operate the engine at low idle rpm for 15 minutes. Refer to this Operation and Maintenance Manual, "Engine Operation" for the procedure on starting and running the engine at low idle. Allow the engine temperature to rise. Check for the correct temperatures and pressures. Inspect