LINE ASSEM. (No. 2) 3Y9692 - Caterpillar

Personal injury or death can result from a fire.Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.Clean up all leaked or spilled fuel. Do not smoke while working on the fuel system.Turn the disconnect switch OFF or disconnect the battery when changing fuel filters.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
If the engine does not start, air may be trapped in the fuel lines to the engine. Use the following procedure to purge air from the fuel lines.Electric Fuel Priming Pump
The electric fuel priming pump is located in the engine compartment on the left-hand side of the machine.
Open the left-hand access door to the engine compartment.
Illustration 1 g06179704
Electric fuel priming pump switch
Press and hold the switch for the electric fuel priming pump. The fuel priming pump will run while the switch is held. Hold the switch for several seconds.Note: Do not activate the priming pump while you crank the engine.
Release the switch and the fuel priming pump will shut off.
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.
Close the left-hand access door to the engine compartment.