Adjusting The Intermediate Thread Guide (Ms-1190M); Motor Pulley And Sewing Speed - JUKI MS-1190 Manuel D'utilisation

15. ADJUSTING THE INTERMEDIATE THREAD GUIDE (MS-1190M)

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following
work after turning the power off and ascertaining that the motor is at rest.

16. MOTOR PULLEY AND SEWING SPEED

The relation among the motor pulley, the sewing speed of sewing machine is as shown in the table below:
Number of revolution
Model
of sewing machine
4,000 sti/min
MS-1190
MS-1190M
3,600 sti/min
Effective
Number of
diameter of
poles of motor
handwheel
67.4mm 2
– 9 –
Number of
Frequency. revolution of
motor
50Hz 2,865 rpm
60Hz 3,430 rpm
50Hz 2,865 rpm
60Hz 3,430 rpm
Effective diameter
of motor pulley
95mm
80mm
85mm
70mm