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Maintenance and careChanging fuel filterD Loosen filter cartridge by means of tapewrench, unscrew it by hand and take itoffD Moisten the seals on the new filter cartridgewith fuelD Screw on the filter cartridges andtighten them vigorously by handD Bleed fuel systemD Check filter for leaksCaution:Used fuel filters are classed asdangerous waste and must be disposedof accordingly.Bleeding the fuel systemNote:To bleed the fuel system switch onthe “ignition” so that the EHAB willbe open.An arrow on the filter head indicates thedirection of fuel flow.D Unscrew bleed screw of first filter in directionof flow by one or two turnsD Actuate tappet of hand primer until fuelemerges without bubblesD Screw in the tappet of the hand pumpagain and tighten itD Close bleed screw againD Repeat this procedure at the secondbleed screwD Check fuel system for leaks55