Chapter 10 Adjustment
3. Adjustment of Clearance Between Needle and Rotary Hook
i | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
w
e
2mm
2mmr
u
t
y
0.3~0.5mm
1. Turn the power switch off.
q2. Select the needle bar No. 1 q.
The illustration at the left shows the case of BES- 962BC. For
3.Remove two flat screws w and dismount the needle plate e.
4.Turn the pulley B until the pulley indication mark "" and the stop mark "NH " are aligned.
5.Turn the rotary hook r manually so that the rotary hook point is aligned properly.
6.Loosen the set screw y on the side of the bed t.
7.Turn the eccentric screw u on the left side of the bed t using a regular screwdriver and adjust a clearance between the needle and the rotary shaft to 0.3 ~ 0.5 mm.
8.Adjust the clearance between the needle and the rotary hook's point to 0.3 ~ 0.5 mm at the needle bar No. 9 i (No. 12 needle for
BES-1262BC).
Note) If the clearance between the needle and the rotary hook point is not within the range of
0.3~ 0.5 mm, adjust again as described in the step r until the needle bar No. 1 or No. 9 (No. 12 for
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