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BE-0901E-AC-PC• BE-1201B-AC-PC 10-5
Chapter 10 Adjustment
1. Turn the pulley [1] until the scale of pulley [1] 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 [2] into the hole of the pulley [1] and fix the upper shaft.
Note) Turn the pulley securely in the clockwise direction.
3. Insert the bottom dead center gauge [3] into the rotary hook [4].
4. Loosen the screw [6] of the needle bar clamp [5], then move the needle bar up and down until the
needle tip touches the gauge [3] 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 [6] of the needle bar clamp [5] securely.
6. After adjustment is finished, remove the positioning bar [2].
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 [7] toward the cushion
rubber [8], and tighten Socket head bolt for top dead center stopper [9] while pressing down the
needle bar clamp so that it faces the front.
Note) Make sure that the top dead center stopper [7] does not hit the needle bar guide rail [10] at this time.