21
10) Adjusting automatic knee lifter (optional)
A. Automatic knee lifter is attached to the machine upon shipment. When automatic knee lifter goes, the ascending amount of the
presser foot is controlled by the crank shaft of automatic knee lifting solenoid . First, loosen the solenoid cover fixing screw
and lift solenoid cover . The ascending amount of the presser foot falls, when the fastening screw of crank shaft of automatic
knee lifting solenoid
is loosened, the solenoid shaft
is moved to the left, and the fixing screw
is fastened. And it grows
when the shaft is moved to the right and then the fastening screw is fastened. After the adjustment, assemble the cover again.
Upon the shipment of machine, the ascending amount of the presser foot is fixed at 13mm when automatic knee lifter works.
[Figure 29]
12) Adjusting the height and slope of feed dog
A. Adjusting feed dog height
Loosen the crank clamp screw
and move the crank
to adjust the height of feed dog.
To adjust feed dog height, set the dial at the highest number. And when feed dog goes to the highest point, be aware that the
height from the top of needle plate to the top of feed dog should be 1~1.2mm in the case of material sewing. ( See Figure 31)
[Figure 31]
Heavy materials
Feed dog
1~1.2mm
11) Adjusting stitch length
As can be seen in figure 30, the number marked in the stitch
length adjusting dial
indicates the stitch width by mm. By
moving left or right, set to the desired number. (Turning it to
the right decreases the number of stitch width and turning to
the left increases the number.)
[Figure 30]
