The.needle-To-Feed.dog.relationship; Motor.pulley.and.sewing.speed - JUKI PLN-985 Instruction Manual

. 2 1.. THE.NEEDLE-TO-FEED.DOG.RELATIONSHIP

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.
Fig..A

. 2 2.. MOTOR.PULLEY.AND.SEWING.SPEED

1) Use an M type V belt.
2) The following table shows the relationship among the motor pulley and the sewing speed.
Model Sewing speed
PLN-985 2,500 sti/min
. (Caution). The.effective.diameter.of.the.motor.pulley.is.obtained.by.subtracting.5.mm.from.the.outside.diameter.
Effective diameter of Number
handwheel of poles
φ 95.3 mm
2
Rotational speed
Frequency
of motor
50 Hz 2,840 rpm
60 Hz 3,400 rpm
– 10 –
Effective diameter
of motor pulley
φ 80
φ 70