Care and maintenance work 6.1 Lubricating oil system 6 Changing the lubricating oil filter cartridge z Remove the clips if an anti-rotation lock is fit- ted. z Loosen and unscrew filter cartridge with tool (order no. 170050) . z Collect draining oil. z Clean the sealing surface of the filter sup- port with a lint-free, clean cloth. z Oil the gasket of the new DEUTZ original fil- ter cartridge lightly. z Screw on the new filter cartridge by hand and tighten a further half a turn. z If necessary, fix the clips of the anti-rotation lock. 30 The filter cartridge may never be pre- filled. There is a danger of soiling