24
C) Turn the pulley by hand to place the needle bar at the lowest position.
D) Press the trimmer driving link⑥ to insert the trimmer cam roller⑦ into the groove of the trimmer cam④.
E) Turn the pulley by hand to make the needle ascend 5mm from the lowest position. Then loosen the trimmer cam
screw⑧ to enable the adjustment of the moving blade. When adjustment completes, fasten the screw.
(5) Maintenance of Fixed Blade
If the thread cutting fails often or if the cut section of the
thread is not smooth, check the fixed blade status.
If the blade is blunt, use a find sandpaper or greased
whetstone to sharpen the blade (see Figure 40).
[Figure 40]
(4) Adjustment of Moving and Fixed Blade Pressure
A) Loosen the fixing screw② for the fixed blade base
①.
B) Turn the eccentric screw③ to adjust the blade
pressure and then fasten the tightening screw for the
fixed blade base②.
C) Test the moving blade to check whether it is sharp
enough to cut the thread.
[Figure 39]
⑥
⑦
④
[Figure 38]
고정메스
기름숫돌
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