SunStar Fortuna 5 Series User's Manual Parts Book

2) Assembling the belt cover and adjusting the belt
tension
(1) Belt cover assembling procedure
® Upon the completion of the motor mounting, bring the two
pulleys of motor and sewing machine closer to each other, by
pulling back the sewing machine. You can then mount the belt
easily as shown in the figure.
A
Wamlhd
Make sure that the power is off before
assembly.
(2) Place the belt cover 'B', making sure that the bell cover does
not contact the bell, and Ihen fasten the cover with the fixing
A
Warning
Do not remove the belt cover.
If a finger slips into the belt it might be broken or
cutoff.
BeK Guide FDdng Screw
Belt Cover RoigSoew
(2) Adjusting the belt tension
iD Optimum Tension Level : The optimum lention level is
achieved when the bell is pushed by 5-lOmm when the top
surface portion of the belt at about 30-50mm above the tabletip
Ispressedby afingerwilhaforceof-Ikgm/sec^or 1 Newton.
© Adjusting the Tension Level : If the tension level is out of the
optimum range, adjust the tension as follows. First, loosen both
the upper and lower nuts for the anchor boll, letting the belt be
stretched by the motor weight itself. Second, tighten the upper
nut only to the extent that the motor does not move. Third,
fasten the bottom nut tightly so that the motor is securely fixed.
5-10mm ^ 1kg
Upper Nut for Ihe Anchor Bolt
lower Nut fo r the Anchor Bolt
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

SunStar Fortuna 5 Series Specifications

General

Brand	SunStar
Model	Fortuna 5 Series
Category	Engine
Language	English