Adjusting The Height Of The Needle Bar; Timing Between The Hook And The Needle - Consew 226R Operating Instructions Manual

14
ADJUSTING THE HEIGHT OF THE NEEDLE BAR (Fig. 18)
When the needle bar is at its highest point, normally the measurement between
the surface of the needle plate and the upper end of the needle eye is 22.3mm.
(Fig. 18)
o.
You can also adjust this at its lowest point. In this case,
normally the measurement between the surface of the
needle plate and the upper end of the needle eye is
llmm.
To adjust this, loosen the screw 0, Fig. 4) and raise or
lower the needle bar as may be required. Then, tighten
the screw upon completion of adjustment.
f
NOTE: These measurements are
approximate standard, according-
22.3mm ly, following final adjustments
"TIMING BETWEEN THE
HOOK AND THE NEEDLE"
are recommended.
I
t
i
,
j
i
i
I
!
Fig. 18
TIMING BETWEEN THE HOOK AND THE NEEDLE (Fig. 19)
After setting the needle bar height, set stitch length to minimum, turn the ma-
chine pulley toward you until the needle bar reaches its lowest point.
Continue turning and allow the'neErlle bar to rise about 2mm while on its up-
ward stroke. With needle bar in this position, the point of the sewing hook sho-
uld be at the center of the needle,and normally, the measurement between the
hook point and the upper end of the needle eye should be 2.4mm, further the
clearance between the hook point and the needle hollow should be about 0.05
to O.lmm.
1. If the sewing hook should not be timed correctly, loosen the three set screw
(K, Fig. 5). Turn the hook shaft to align the hook point with the center of
the needle. Re-tighten the three set screws and re-check the timing of the se-
wing hook.
2. To adjust the clearance between the hook point and the needle hollow, loos-
2.4mm
II II en the two screws
(CD,
Fig.
20) and move the hook to
the right or to the left as
may require. Please note
one of the two screws is
placed on the V ditch of
O.05-0.1mm hook shaft. Therefore,
keep the screw on V ditch
during adjustment.
Fig. 19 Re- tighten the screws.