72Cleaning the Hook RaceWARNING:Turn the power switch off and unplug the machinebefore cleaning.NOTE:Do not dismantle the machine in any way other thanwhat is explained in this section.z Remove the setscrew on the needle plate with ascrewdriver. Remove the needle plate.q Screwdriverw Setscrewe Needle platex Take out the bobbin. Lift up the bobbin holder andremove it.r Bobbin holderc Clean the bobbin holder with a lint brush.t Lint brushv Clean the feed dog and hook race with the lint brush.y Feed dogu Hook raceb Clean the hook race with a soft dry cloth.(You may also use a vacuum cleaner.)Inserting the bobbin holderz Insert the bobbin holder.x The knob of the bobbin holder should fit next to thestopper in the hook race.q Knobw Stopperc Reattach the needle plate, aligning the needle plateguide pins with the guide holes in the needle plateand tighten the setscrew.e Guide pinsr Guide holesNOTE:After cleaning the machine, make sure the needle andpresser foot are attached.wqezxcvbzxcrqwer ty u