48
(5) Installation positions of the spreaders and the timing to open/
close the spreaders
●
Position of left spreader
height
The clearance A provided between left spreader
and the top surface of the left looper is as small as a
piece of looper thread to be used.
●
Position of right spreader
height
The clearance provided between right spreader
and the top surface of the right looper is 0 to 0.1 mm.
1. Adjust the clearance by reforming the spreader. Place the top end of the spreader on the wooden
board or the like and gradually bend it by hand since using pliers or the like will cause the
spreader to break.
2. If the clearance provided between the spreader and the looper is excessively small or large,
stitch skipping or needle breakage will result.
A
0 to 0.1 mm
DANGER :
Be sure carry out the work while observing the following in order to protect against pinching of
hands, fingers and arms between the sewing machine and the bottom cover, which can result in
serious injury, when you raise the sewing machine from its home position.
• Be sure to lock the hinge stopper to firmly secure the sewing machine in its raised position.
* Read and check how to rise/return the sewing machine described on p.3 to p.5.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
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