2. Adjustment of Timing Between Needle and Rotary Hook- Page 224

10-6

BE-0901E-AC-PC• BE-1201B-AC-PC

Chapter 10 Adjustment

2. Adjustment of Timing Between Needle and Rotary Hook

W1626

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 clearance 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 the
range of 0.2 to 0.4 mm respectively. 9.

[5]

[6]

[2]

[1]

[4]

[3]

2mm

0.2~0.4mm

2mm