. 1 1.. THE.NEEDLE.THREAD.TENSION
. 1 2.. THE.BOBBIN.THREAD.TENSION
WARNING.:
To.avoid.possible.personal.injury.due.to.abrupt.start.of.the.machine,.turn.off.the.power.to.the.machine.and.check.to.be.sure.that.
the.motor.has.totally.stopped.rotating.in.prior.
. 1 3.. THE.THREAD.TAKE-UP.SPRING
– 6 –