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SECTION IV. CARING FOR YOUR MACHINE
Replacing the Upper Knife
To remove:
1. Turn off the power switch and unplug the machine.
2. Open the looper cover and side cover.
3. Deactivate
the upper knife.
4. Remove
the hexagonal
bolt, and remove the
upper knife.
(_
Upper knife
(_) Hexagonal bolt
Stopper pin
(_
Lower knife
To attach:
.....
1. Insert a new upper knife into the groove of
holder and stopper
pin, then tighten the
hexagonal
bolt slightly ............
.........
2. Turn the upper knife
holder
.....
3. Turn the handwheel
toward
knife comes
to its lowest PQii
-
.....
Loosen
the hexagonal
bolt, _ _ _djust the
position
ofth#_
_N_e s :
at:_heedge
upper kn
1
theedge:{j
erkni{eas
Then
tig6
be
hex
........
4. Close
cover
cover.
Cleaning
Upper
Knife Area
1. Turn off the power switch and unplug the machine.
2. Open the looper cover.
Remove
the waste pieces to the front with a lint
brush.
* You may use a vacuum
cleaner
to clean the
upper knife area or feed dog.
* The lower knife should
last for one year in normal
use. However,
if you run over a pin or a hard
object,
it may be required
to replace
both upper
and lower knives at the same time.
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