70
PFM-4000
Part Number 6Z8303
General Maintenance
Figure 8.12
Top and bottom knives
Sharpening the Knives
Keep the knives sharp to ensure proper function. The bottom knife can be
sharpened on a grinder. Maintain the correct angles as shown in
Figure 8.13
Sharpening the bottom knife
Sharpening the Rotary Flange Cutter Blade
Keep the rotary flange cutter blade sharpened to ensure proper function. To
sharpen the blade, refer to
and do the following:
1
Lift the section of the sewing table that contains the rotary flange cutter, and
move it toward the left (A).
2
Activate the rotary flange cutter by pressing downward on the flange cutter
pedal with your foot.
3
While the rotary flange cutter is active, press the sharpening button (B).
serrated top knife
top knife screw
bottom knife
bottom knife screw