Motor Pulley And Sewing Speed - JUKI MS-1261/V045 Instruction Manual

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
MS-1261/V045
MS-1261/V046
MS-1261M/V045
MS-1261M/V046
18. HOW TO ADJUST THE V045, V046
1
From the time when the feed dog is
Cloth puller
aligned with the top surface of the
throat plate to the time when the former
projects 0.3 mm from the latter
MS-1261/V045
MS-1261M/V045
MS-1261/V046
MS-1261M/V046
Effective diameter
sewing machine of handwheel
3,600 sti/min
67.4mm
3,000 sti/min
A
Feed dog
The state at the start of
feeding
Aligned
Top surface of the
throat plate
Finishes feeding the material
B
Number of poles
Frequency.
of motor
50Hz
60Hz
2
50Hz
60Hz
(1) Adjustment of timing between the main body of
sewing machine and the V0 device
1)
Adjust the amount of feed of the main body of sewing
machine to 3.5 mm. (3.0 mm for MS-1261M/V045, MS-
1261M/V046)
Loosen adjusting screw 1 of the V0 device. Set the
2)
adjusting screw at position A (3.5 mm). Then, fi x the
adjusting screw.
3) Timing relation between the sewing machine and the
cloth puller is as described below:
(The following shows the standard values. The timing
relation between the sewing machine and the cloth
puller may be required to be changed depending on the
material to be used.)
(Caution) Be sure to check the timing relation with the
presser foot installed.
[MS-1261/V045, MS-1261M/V045]
Turning the handwheel, adjust so that the cloth puller
starts rotating from the time when the top end of the
feed dog is aligned with the top surface of the throat
plate to the time when the former projects 0.3 mm
above the latter.
[MS-1261/V046, MS-1261M/V046]
Adjust so that the cloth puller finishes rotating when
the feed dog fi nishes feeding the material and is aligned
with the top surface of the throat plate.
B.
– 9 –
Number of Effective diameter
revolution of motor of motor pulley
2,860 rpm 85mm
3,430 rpm 70mm
2,860 rpm 70mm
3,430 rpm 60mm