TUBE AS 3322949 - Caterpillar

Electric Fuel Priming Pump
Use a suitable container to catch any fuel that might spill. Clean up any spilled fuel immediately.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
The electric fuel priming pump is located on the left side cab platform behind the access door to the front of the fuel tank.
Turn the ignition switch to the "OFF" position.
Illustration 1 g01042154
Front view
Move the switch for the electric fuel priming pump to the ON position. Allow the fuel priming pump to run for four minutes..
Return the switch for the fuel priming pump to the OFF position.
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.
Start the engine. If you cannot start the engine, the engine needs more priming. If the engine continues to misfire or to smoke, more priming is necessary.Note: The electric fuel priming pump will only operate if the engine start switch key is in the OFF position. Shut off the engine before any additional priming.
Run the engine at the LOW IDLE position until the engine runs smoothly.
The fuel system will need to be primed when the fuel filters are replaced or fuel has been lost in the fuel supply system.Note: Do not activate the priming pump while you crank the engine.Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for information on replacing the filter.