26
55
Maintenance
5.1) Adjustment of Needle Bar Height
Place the needle bar at the lowest position, and loosen the
needle bar holder screws. Find an upper carved line
appropriate to the needle specifications, and make the line
touch the bottom of the needle bar bushing. When the
adjustment is completed, fasten the tightening screw for the
needle bar holder.
5.2) Adjustment of Needle and Hook
Locate the needle bar at the lowest position. When the
needle bar ascends, make the lower carved line appropriate
to the needle used touch the bottom of the bushing.
5.3) Adjustment of Feed Plate Height
5.3.1) Adjusting Method
To adjust the height of the feed plate, change the feed plate height according to the length of the cylinder shaft which is
connected to the cylinder arm.
Cylinder Shaft Length
Feed Plate Height
Increase
Decrease
Decrease
Increase
Tightening
Screw
DP
×
15
Less than
DP
×
17 #22
DP
×
17 #22
or above
Needle Bar
Lower Bushing
DP
×
17 #22
or above
Less than
DP
×
17 #22
DP
×
5
After completing the adjustment of the feed plate height, tightly fasten the cylinder knuckle fixing
nut.
Caution