18
[ Figure 23 ]
10) Adjusting stitch length
As illustrated in Figure 23, the number on the stitch-
adjusting dial ① shows the stitch length in mm. Turn
left and right to get a desired stitch length. (The stitch
length will decrease when turned clockwise, and increase
when turned counterclockwise.)
Caution
▶After disassembling and adjusting a safety device, always place it back to the original
position and check whether it functions as intended.
▶
Use both hands when pushing the machine backward or returning it to the original position. Due
to the weight of the machine, your hand can get stuck in the machine if you should slip.
▶When adjusting the machine with the switch on, be sure to pay extreme caution.
▶Only trained engineers must perform troubleshooting or inspection of the machine.
▶For electrical repair or inspection, consult with qualified technicians or agent.
A. To adjust the height of the feed dog, unfasten the screw ② of the holder crank (unit) and move the holder crank (unit) ①.
To adjust the height, set the stitch length at a maximum, and lift the feed dog to the highest position. At this point, the
standard height from the faceplate of the needle plate and the end of the feed dog should be 0.8mm for light sewing
materials, 1mm for medium heavy and 1.2mm for heavy sewing materials. (Refer to Figure 24)
B. To adjust the inclination of the feed dog, loosen the screw ⑥ of the horizontal pusher crank ④. Use a driver to turn the
inclination-adjusting shaft ⑤ left and right up to 90°. Turn the shaft ⑤ clockwise to raise the rear of the feed dog, and
turn it counterclockwise to raise the front of the feed dog. (Refer to Figure 24)
C. The height of the feed dog ③ changes as the inclination is adjusted. Adjust the height of the feed dog afterwards.
11) Adjusting feed dog height and inclination
[ Figure 24 ]
Back Front
Back Front
Back Front
Clockwise direction
Counterclockwise direction
Maximum height
of feed dog
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