Brother International Innov-is NS80e Operation Manual - Page 62
Checking machine operations
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Troubleshooting Remove any threads in the race and around the feed l dogs. Turn the handwheel to raise the feed dogs. m Align the two screw holes in the needle plate with the n two holes at the needle plate mounting base, and then fit the needle plate onto the machine. Lightly finger-tighten the screw on the right side of the o needle plate. Then, use the disc-shaped screwdriver to firmly tighten the screw on the left side. Finally, firmly tighten the screw on the right side. Slowly turn the handwheel toward you c (counterclockwise), and look from all sides to check that the needle falls at the center of the opening in the needle plate. If the needle contacts the needle plate, remove the needle plate, and then install it again, starting with step m in "Removing the fabric from the machine" on page 59. 1 Opening in the needle plate a 2 Handwheel b Turn the handwheel to check that the feed dogs move smoothly and do not contact the edges of the slots in the needle plate. a b 1 Correct position of feed dogs 2 Incorrect position of feed dogs Insert the bobbin case by following step k in p "Cleaning the race" on page 55. Attach the needle plate cover according to step l in q "Cleaning the race" on page 55. Check the condition of the needle, and then install it. r If the needle is in a poor condition, for example, if it is bent, be sure to install a new needle. • Refer to "Checking the needle" on page 20 and "Replacing the needle" on page 20. Memo • Since the needle may have been damaged when the fabric was caught in the machine, we recommend replacing it with a new one. ■ Checking machine operations If the needle plate has been removed, check machine operations to confirm that installation has been completed correctly. Turn on the machine. a Select stitch . At this time, increase the stitch length d and width to their maximum settings. • For details on changing the settings, refer to "Setting the stitch width" on page 27 and "Setting the stitch length" on page 27. Slowly turn the handwheel toward you e (counterclockwise) and check that the needle bar and feed dogs operate correctly. If the needle or feed dogs contact the needle plate, the machine may be malfunctioning; therefore, contact your nearest Brother authorized service center. Turn off the machine, and then install the bobbin and f presser foot. Never use a scratched or damaged presser foot. Otherwise, the needle may break, or sewing performance may suffer. • Refer to "Installing the bobbin" on page 14 and "Replacing the presser foot" on page 21. Correctly thread the machine. g • For details on threading the machine, refer to "Upper Threading" on page 15. Perform trial sewing with cotton fabric. h Note • Incorrect sewing may be the result of incorrect upper threading or sewing thin fabrics. If there are poor results from the trial sewing, check the upper threading or the type of fabric being used. Select stitch . b Note • Do not yet install the presser foot and thread. 60