39
elna 9900
Adjusting the Static Cutter Blade
Setscrew
Cutter drive shaft
Nut
Lower adjusting screw
Upper adjusting screw
1. Remove the 2 setscrews and needle plate.
2. Press
Init
key to move the dynamic cutter blade
to the home position.
3. Check if there is any thrust play in the cutter drive
shaft and eliminate a play if any.
4. The front tip of the dynamic cutter blade should
extends 0.3 to 0.5 mm from the edge of the static
cutter blade.
If there is a gap between the edge of the static cutter
blade and the dynamic cutter blade, adjust the height
of the static cutter blade.
Loosen slightly the two setscrews and nut on the
adjusting screw. Screw in the adjusting screw until the
edge of the static cutter blade evenly touches the
upper surface of the dynamic cutter blade.
Tighten the two setscrews and nut.
5. Test auto thread cutting with polyester threads size
#120 both in the needle and bobbin.
6. Attach the needle plate.
0.3 to 0.5 mm
Summary of Contents for 9900 - LEAFLET
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