CONNECTOR 8C0564 - Caterpillar

If air enters the fuel system, the air must be purged from the fuel system before the engine can be started. Air can enter the fuel system when the following events occur:
The fuel tank is empty or the fuel tank has been partially drained.
The low-pressure fuel lines are disconnected.
A leak exists in the low-pressure fuel system.
The fuel filter is replaced.
A new injection pump is installed.Use the following procedure to remove air from the fuel system:Fuel system - Prime (Non-Marine Classification Society)
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
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(1) Vent screw
Slacken the vent screw (1).
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Remove the starter solenoid wire (2) and press start.Note: The control panel will run through the start sequence but will not crank. The fuel lift pump will operate during crank cycle until the system is bled. The fuel pump operation can be heard during this period.Note: Perform bleeding of system for no longer than 30 seconds, then allow the lift pump to cool down for a minimum of 2 minutes.
Press the Stop button and tighten the vent screw.
Start the engine in the normal way.Fuel System - Prime ( Marine Classification Society 1)
If air enters the fuel system, the air must be purged from the fuel system before the engine can be started. Air can enter the fuel system when the following events occur:
The fuel tank is empty or the fuel tank has been partially drained.
The low-pressure fuel lines are disconnected.
A leak exists in the low-pressure fuel system.
The fuel filter is replaced.
A new injection pump is installed.Use the following procedure to remove air from the fuel system:
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
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(1) Vent screws
(2) Lever
Slacken the vent screws (1), starting with the first one in the system, turn the lever (2) to one side.
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(4) E STOP button
Allow the engine to crank and press the 'E STOP' button (4), the fuel will start to fill the fuel canister.
Start the engine in the normal way.
Perform this for no longer than 30 seconds, then allow the lift pump to cool down for a minimum of 2 minutes.
Priming the Fuel System with the "START" Switch
Remove the cover for the fuel injectors. Refer to the Disassembly and Assembly Manual.
Turn the key switch to the RUN position. Leave the key switch in the RUN position for 3 minutes.
Turn the key switch to the OFF position.
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Injector nuts
Note: Damage to the following components may occur if the starting motor is used excessively to purge the air from the fuel system: fuel injection pump, the battery, and the starting motor.
Loosen the flare nuts (1) for the high-pressure fuel lines on all the fuel injectors.
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
Observe the connection at the flare nut.