JUKI PLN-985 - 21. NEEDLE-TO-FEED DOG RELATIONSHIP; 22. MOTOR PULLEY AND SEWING SPEED

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21. THE NEEDLE-TO-FEED DOG RELATIONSHIP
22. 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
Effective diameter of
handwheel
Number
of poles
Frequency
Rotational speed
of motor
Effective diameter
of motor pulley
PLN-985 2,500 sti/min
φ
95.3 mm 2
50 Hz 2,840 rpm
φ
80
60 Hz 3,400 rpm
φ
70
(Caution) The effective diameter of the motor pulley is obtained by subtracting 5 mm from the outside diameter.
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
iii
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