Brother International NX-450Q Users Manual - English - Page 144
performance may suffer. For a new
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Remove the bobbin case. e Grasp the bobbin case, and then pull it out. Install the needle plate cover. h The needle plate cover is installed differently depending on the model. ■ If there is a screw in the needle plate cover Insert the tabs on the needle plate cover into a the needle plate, and then slide the cover back on. 1 a Bobbin case Use the cleaning brush or a vacuum cleaner to f remove any lint and dust from the race and its surrounding area. a a Needle plate cover Use the disc-shaped screwdriver to tighten the b screw in the needle plate cover. a b a Cleaning brush b Race 4 • Do not apply oil to the bobbin case. Insert the bobbin case so that the projection g on the bobbin case aligns with the spring. ■ If there is no screw in the needle plate cover a Insert the tabs on the needle plate cover into a the needle plate, and then slide the cover back on. b 2 1 a Projection b Spring 1 a Bobbin case a a Needle plate cover Install the flat bed attachment in its original i position. CAUTION ● Never use a bobbin case that is scratched, otherwise the upper thread may become tangled, the needle may break or sewing performance may suffer. For a new bobbin case (part code: XC3153-151), contact your nearest authorized service center. ● Be sure that the bobbin case is correctly installed, otherwise the needle may break. Care and Maintenance 143