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Chapter 8 Standard Adjustment
BES-961BC • BES-1261BC
145
w
e
2mm
2mm
r
0.3~0.5mm
3.
Adjustment of Clearance Between Needle and Rotary Hook
1. Turn the power switch off.
2. Select the needle bar No. 1 q.
The illustration at the left shows the case of BES-
961BC. For BES-1261BC, the No. 12 needle becomes
9.
3. Remove two flat screws w and dismount the
needle plate e.
4. Turn the pulley B until the pulley indication
mark "3" and the stop mark "NH3" 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-
1261BC).
Note) If the clearance between the needle and the ro-
tary 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 BES-
1261BC) whichever has the smallest clearance
may not be interfered by the rotary hook point.
u
y
i
q
t