Brother International BES-1240BC Instruction Manual - English - Page 241

Chapter 10 Standard Adjustment 1. Turn the pulley q until the scale of pulley q indicates 180˚ (where the pulley indication mark " " and the stop mark " " are aligned) and the needle bar is set at the lowest position. 2. Insert the positioning bar w into the hole of the pulley q and fix the drive shaft. Note) Turn the pulley securely in the clockwise direction. 3. Insert the bottom dead center gauge e into the rotary hook r. 4. Loosen the screw y of the needle bar clamp t and move the needle bar up and down until the needle tip touches the gauge e lightly. Note) • The needle point should touch the gauge at a place other than the cutting section. • The bottom dead center gauge should be set in or removed from the rotary hook with its cutting section facing upward. 5. Tighten the screw y of the needle bar clamp t securely. 6. After adjustment is finished, remove the positioning bar w. 7. Set the needle bar at the highest position (where the pulley indication mark " " and the cover indication mark " " are aligned). Lightly press the top dead center stopper u toward the cushion rubber i, and tighten the top dead center stopper screw o while pressing down the needle bar clamp so that it faces the front. Note) Make sure that the top dead center stopper u does not hit the needle bar guide rail !0 at this time. BES-940BC • BES-1240BC 239