10-6 BE-0901E-AC-PC• BE-1201B-AC-PC
Chapter 10 Adjustment
2. Adjustment of Timing Between Needle and Rotary Hook
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1. Select needle bar No. 1.
The above figure shows model BE-0901E-AC-PC. For model BE-1201B-AC-PC, needle bar No. 12
corresponds to y.
2. Remove two flat countersunk head screws [2], and remove needle plate [3].
3. Make an adjustment so that the needle is brought to rotary hook [4] when it rises 2 mm from the
needle bar bottom point (180°) (in the position where the mark " " of the pulley is aligned with the
stop mark " ").
4. Loosen screws [5] of the rotary hook. Adjust the clearance between the needle and the rotary hook
to 0.2 to 0.4 mm. Tighten the two screws temporarily. The needle bar height will be about 2 mm
(Figure A).
5. Select the second needle bar (bar No. 12 for BE-1201B-AC-PC) [6]. Check that a clearance of 0.2
to 0.4 mm is left between the needle and the rotary hook. Tighten the three screws of the rotary
hook.
Note) If the clearanc e between the needle and the rotary hook is not within 0.2 to 0.4 mm, repeat step 3
and adjust both clearances at needle bar No. 1 and No. 9 (No. 12 for BE-1201B-AC-PC) to th e
range of 0.2 to 0.4 mm respectively. 9.
[5]
[6]
[2]
[1]
[4]
[3]
2mm
0.2~0.4mm
2mm