6 Fuel system Servicing and maintenance works © 2009 43 z Oil the gasket of the new DEUTZ original filter cartridge lightly. z Screw on new filter by hand until the gasket is touching and tighten with a torque of: 10-12 Nm z Fasten clamps of the twist protection (optional). z Vent the fuel system. z Remove clamps when twist protection mounted (optional). z Loosen and unscrew filter cartridge with tool (or- der number: 170050) . z Catch any escaping fuel. z Clean the sealing surface of the filter support with a lint-free, clean cloth. The filter cartridge should never be pre- filled. There is a danger of dirt contamina- tion! Change the fuel filter cartridge