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Replacing the Upper Knife
SECTION 4. CARE FOR YOUR MACHINE
To Remove:
_'_ Disconnect tne machine from the Dower suoply.
_" Open tne looper and side covers.
(_ Disengage the upper knife
(Refer to page 29.)
_4_ Remove the hexagon Do_t. and remove the
upper knife.
/ \
KnITE
,_exacl£)n DOlt
/
To Attach:
@
nsert new upper knife into the groove of knife
nolder and stopper pin, then tighten the
nexagon bolt slightly.
..Upper
knife
Lower krlUe
Turn the upper knife holder to cutting position.
Turn the hand wheel toward you until the
upper knife comes to its lowest oosition
Loosen me hexagon bolt, and adjusl the posi-
tion of upper knife so that the edge of the
upper knife overlaps 0.5 to 1 mm (1/32") from
the edge of lower knife as showr above.
Then tighten the hexagon bolt firmly.
(_ Close the looper and side covers.
The lower knife will last over one year in normal use, However, if you run overa oinorahard object, t mav be required to replace both upper and ower kn_ves
at the same [ me
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