Adjustment Of Clearance Between Needle And Rotary Hook - Brother BES-1241BC Instruction Manual

3. Adjustment of Clearance Between Needle and Rotary Hook

i
9 8 7
w
e
2mm
r
2mm
u
0.3~0.5mm
6 5 4 3 2 1
t
y
BES-941BC • BES-1241BC
1. Turn the power switch off.
2. Select the needle bar No. 1 q.
q
The illustration at the left shows the case of BES-
941BC. For BES-1241BC, 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 " " 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-1241BC).
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 BES-1241BC) whichever has the small-
est clearance may not be interfered by the
rotary hook point.
Chapter 8 Standard Adjustment
153