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2. INSTALLING THE SYNCHRONIZER
1
2
3
4
• Apply the adjustment below to the models which
are not provided with built-in synchronizer.
Adjust the stop position in the state that the synchronizer
is actually installed to the sewing machine. At this time,
remove the connector for the sewing machine for safety's
sake.
1) Temporarily fix synchronizer 1 to the handwheel.
2) Remove the cover of synchronizer 1, and adjust
edge section 6 of outside UP position detecting
plate 5 to the position of scale of DOWN position
detecting plate 7 in accordance with the respective
models. For the position of scale of the respective
models, refer to the list 1.
3) After confirming that the connectors for sewing
machine have been removed, set the sewing
machine controller to position 2 (DOWN position
stop), loosen setscrews 2 of synchronizer 1, turn
the joint, and adjust the stop position so that DOWN
position engraved marker dot 4 aligns with
engraved marker dot 3 on the machine arm.
Engraved marker dot of stop position of the
handwheel changes in accordance with the
respective models. Refer to the list 2.
4) After adjusting DOWN stop, set the sewing machine
controller to position 1 (UP position stop) and
confirm the UP stop position. When UP stop
position is improper, perform fine adjustment with
UP position detecting plate 5.
5) After adjusting the stop position, attach the cover
of synchronizer 1. Return the sewing machine
controller to position 2 (DOWN position stop).
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6
5
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