Position Of The Intermediate Thread Tension Releasing Lever And Thread Guide Of The Needle Thread Tension Controller; Motor Pulley And Sewing Speed - JUKI MS-1261 Instruction Manual

16. POSITION OF THE INTERMEDIATE THREAD TENSION RELEASING LEVER
AND THREAD GUIDE OF THE NEEDLE THREAD TENSION CONTROLLER
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.

17. 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 of
Model
sewing machine
3,600 sti/min
MS-1261
MS-1261M
3,000 sti/min
Effective diameter Number of poles
of handwheel of motor
67.4mm 2
– 8 –
Number of
Frequency.
revolution of motor
50Hz 2,860 rpm
60Hz 3,430 rpm
50Hz 2,860 rpm
60Hz 3,430 rpm
Effective diameter
of motor pulley
85mm
70mm
70mm
60mm