Brother ZM-850A, Инструкция по эксплуатации

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57 ZM-850A, 851A
Adjust so that the end of the rotary hook holder
q
is 0 to
0.5 mm back from end
A
of the inner rotary hook
w
.
* The end of the rotary hook holder
q
must never extend
to the right of end
A
of the inner rotary hook
w
.
1. Loosen the screw
e
and adjust the position of the ro-
tary hook holder
q
.
2. Securely tighten the screw
e
.
1. Set the zigzag width to “0”, and set the needle position
to the center reference line. (Refer to P. 29 – 31.)
2. Remove the presser foot, needle plate, auxiliary needle
plate and feed dog.(Refer to P. 55.)
3. Place the auxiliary needle plate
q
on the needle plate
installation surface of the machine bed.
4. Turn the machine pulley to move the needle bar
w
from
its lowest position, and check the following when the
distance from the top of the auxiliary needle plate
q
to the bottom edge of the needle bar
w
is the same as
the height of accessory timing gauge 2
e
.
• The tip of the rotary hook
r
should be aligned with
the center of the needle.
• The distance from the tip of the rotary hook
r
to
the needle should be 0 to 0.05 mm.
Note:
The needle plate and the auxiliary needle plate
q
are
of different thicknesses, so be sure to use the auxil-
iary needle plate
q
.
5. If the above are not correct, loosen the two screws
t
and adjust the position of the rotary hook
y
.
After adjustment, securely tighten the two screws
t
.
6. Set the zigzag width to the maximum setting.
• 850A (Narrow) ........................... 5mm
• 850A (Wide), 851A .................... 8mm
7. Turn the machine pulley to move the needle to its fur-
thest left position so that the tip of the rotary hook
r
is aligned with the center of the needle, and check that
the distance from the upper edge of the needle hole to
the tip of the rotary hook
r
is 0.2 to 0.5 mm at this time.
* If the distance is not correct, adjust the height of the
needle bar. (Refer to page 55.)
8. If needle deflection occurs when sewing material with
joints, bend the needle guard
u
in the direction of the
arrow as shown in the illustration
A
so that it touches
the needle.
* After this, check that the clearance between the tip of
the rotary hook
r
and the needle is 0 to 0.05 mm.
r
u
A
10-9. Hook stopper position
0 to 0.05 mm
0.2 to 0.5 mm
0 to 0.05 mm
0 - 0.5 mm
10-8. Needle and rotary hook timing
10. STANDARD ADJUSTMENTS
10. STANDARDEINSTELLUNGEN
10. REGLAGES STANDARD
10. AJUSTES ESTANDARES
q
e
q
e
w
A
0607M
0608M
w
e
q
r
r
r
y
t
Zigzag width 0 mm
Maximum zigzag width
0603M
0605M
0606M
0604M
A
C
Zigzag width Model
8mm 850A (Wide), 851A
5mm 850A (Narrow)
Mark