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8-10. Adjusting the stop position of the needle
A
B
8-11. Adjusting the thread trimmer
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
1
2
C
D
1
B
A
2
1
1
2
(1) Stop position of the needle after thread trimming
1) The needle stops at the standard stop position when
marker dot A engraved on the handwheel cover is
aligned with white marker dot B engraved on the
handwheel.
2) Stop the needle at the highest position of its stroke,
loosen screw 1, and adjust the stop position of the
needle by moving screw 1 within the slot.
1 Move the screw in the direction C to advance
the timing to make the needle stop.
2 Move the screw in the direction D to retard the
timing to make the needle stop.
Do not operate the sewing machine
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with screw 1 loosened.
Loosen the screw only, and do not
removed it.
(2) The lowest stop position of the needle
When you return the pedal to its neutral position after
having depressed the front part of it, the needle stops
at the lowest stop position. As in the case of the
adjustment of the highest stop position of the needle,
stop the needle 1 in the lowest position of its stroke,
loosen the screw 2 , and adjust the lowest stop
position of the needle by moving the screw 2 within
the slot. Move the screw in the direction A to advance
the timing to make the needle stop or in the direction
B to retard it.
Do not adjust screw 2.
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It has been factory-adjusted at the
time of delivery and needle sway
will be caused if it is adjusted.
( 1) Initial position of the moving knife
When the moving knife is in its initial position, the moving
knife pin 1 should be aligned with the engraved marker
dot 2 as shown in the figure on the left.
1. When the gauge size which is more
than that delivered as standard or the
gauge size of other manufactures is
used, and the counter knife
interferes with the feed dog, loosen
nut 3, move the initial position of
moving knife pin 1 to the left from
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e n g r a v e d m a k e r d o t 2 b y
approximately one half of engraved
marker dot 2 and fix the pin.
2. Guarantee of the sharpness of the
thread trimmer knife unit is #80 to
#50. When using thick threads
thicker than these Nos., replace the
knife with thread trimmer knife unit
for thick thread (Part No. : 22556054).
129
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