Brother International PR-620 Users Manual - English - Page 81

OTHER BASIC PROCEDURES As shown in the illustration, press 1 to extend the needle-mounting clamp 2. Attach the clamp to the needle, and then release the pressed area to clamp the needle. To unclamp the needle, press 1 again. While holding the needle in place with your 4 left hand, tighten the needle set screw. Use the allen screw driver to turn the needle set screw clockwise. CAUTION ● Be sure to insert the needle all the way up until it touches the needle bar stopper and securely tighten the needle set screw with the allen screw driver, otherwise the needle may break or the machine may be damaged. ● If the needle is not fully inserted, the hook of the automatic needle-threading mechanism will not pass through the eye of the needle during automatic needle threading, and the hook may bend or the needle cannot be threaded. ● If the hook of the automatic needlethreading mechanism is bent or damaged, contact your authorized retailer. 64