12
2) Assembling the belt cover and adjusting the belt
tension
(1) Belt cover assembling procedure
① 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.
② Place the belt cover ‘B’, making sure that the belt cover does
not contact the belt, and then fasten the cover with the fixing
screw.
(2) Adjusting the belt tension
① Optimum Tension Level：The optimum tention level is
achieved when the belt is pushed by 5-10mm when the top
surface portion of the belt at about 30-50mm above the tabletip
is pressed by a finger with a force of~1㎏m/sec
2
or 1 Newton.
② 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 bolt, 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.
Controller Box
Belt Cover “A”
Belt Cover “B”
Belt
Belt Guide Fixing Screw
Belt Cover Fixing Screw
Belt Guide
Pulley
Belt Guide
Fixing
Screw
Upper Nut for the Anchor Bolt
Lower Nut for the Anchor Bolt
Warning
Do not remove the belt cover.
If a finger slips into the belt, it might be broken or
cut off.
Warning
Make sure that the power is off before
assembly.
5~10mm
1kg
30~50mm
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