Industrial Sewing Machine SADE
61
WARNING!
To protect against possible
personal injury due to abrupt start of the
machine, be sure to start the following work after turning the power off
and ascertaining that the motor is at rest.
1) Adjust the standard feed adjusting dial to "0". (Caution 1).
2) Loosen hook driving shaft set collar clamping screw ❸, and turn the handwheel
counterclockwise to make the needle bar ascend by 2.3 mm from the lowest position
of its stroke.
3) In the state described in 2), align blade point ❶ of the hook with the center of nee-
dle ❷, and tighten hook driving shaft set collar clamping screw ❸. At this time,
a clearance of 1.5 mm is provided between the blade point of the hook and the top
end of the needle eyelet. (The hook driving shaft set collar should be flush with end
face of the hook driving shaft.)
4) Loosen setscrews ❹ and ❺ of the hook driving shaft saddle on the top face of the
bed. Adjust the clearance between the blade point of the hook and the needle to
0.05 to 0.1 mm by moving the hook driving shaft saddle to the right or left to change
its position. Then, tighten setscrews ❹ and ❺.
5) Align the largest scale mark of the standard feed adjusting dial with the marker dot
on the machine arm.
Check to be sure that the blade point of the hook does not come in contact with the
needle.
1.
If stitch skipping and thread breakage occur when using elastic thread
such as vinylon, adjust the hook timing with the pitch used for sewing.
2.
The operation panel could come in contact with the thread stand when