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1. Adjustment of tension disk rise
(1) Insert a screwdriver in the driver groove of the tension floating shaft
and loosen the setscrew of the lift lever . Then, turn the
tension floating shaft clockwise.
(2) Adjust height of the disc floating pin to 6.5mm and tighten the
setscrew .
o If proper positioning is not secured
for the disc floating pin , the
needle thread and/or the looper
thread cannot be pulled out when
this action is needed.
Adjustment Procedures Results of Improper Adjustment
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