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35
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Adjustment Procedures
Results of Improper Adjustment
Adjustment Procedures
Results of Improper Adjustment
Adjustment Procedures
Results of Improper Adjustment
1) Loosen screw
1
.
2) Remove screw
2
, and the knife unit will come off.
Installation is carried out analogously in reverse order.
(Caution) When installing the knife unit, take care to allow
the moving knife pin to securely rest on the knife yoke.
1) Provide a clearance of 1 mm between handwheel
1
and the
pulley cover. If the clearance is excessively narrow, the position
detecting magnet comes in contact with the synchronizer, and
if it is excessively wide, defective detection may occur.
2) Be sure to adjust screw No. 1 in the handwheel to the flat
portion of the motor shaft and tighten the screws in the order
of No. 1 and No. 2.
™
Stop the needle in its upper stop position. Loosen screw
A
in
the figure and adjust the stop position of the needle by moving
the screw within the slot.
™
To advance the stop position
→
in the direction
1
™
To retard the stop position
→
in the direction
2
(Caution) Do not rotate the sewing machine with screws
A
and
B
loosened during performing adjustment.
Be sure only to loosen screws
A
and
B
and not to remove
them.
