Adjusting The Timing The Needle With Feed; 6. Adjusting The Height Of The Needle Bar - Consew 206RBL-18 Operating Instructions & Parts Book

8·5.
Adjusting the timing the needle with feed
Q
-J:
- -
~l
It is important that the timing relationship between
the needle on its downward stroke and the feed dog
movement is maintained at all times. When the scart
of the needle on the downward stroke reaches the top
surface of the feed dog, the feed dog movement must
start. When adjustment is required, use the following
procedure to change the position of cam
O.
1.
2.
3.
4.
5.
6.
Change the feed amount to the largest possible
setting.
Loosen the screw
6
for cover plate
e
and the
screw
0
for oil reservoir
0,
and then remove the
cover plate
e
and the oil reservoir
0.
Normally put the arrow mark
0
of the cam
0
on
the V ditch @ of arm shaft.
Turn the machine pulley to the needle at 1 mm up
from its lowest point.
And. pushing the reverse lever up and down. turn
the cam., and set this atthe point both the needle
and the feed dog rest.
After positioning completed. tighten the each
screw securely.
8-6. Adjusting the height of the needle bar
<Needle bar highest point>
Needle plate
22.3mm
When the needle bar., is at its highest point. nor-
maUy the measurement between the surface of the
needle plate and the upper end of the needle eye is
22.3mm.
1.
Loosen the screw
6
and move the setting posi·
tion of the needle bar., to get the correct posi·
tion,
2. Tighten the screw
6.