JUKI MF-7524, Инструкция по эксплуатации

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Use a motor pulley which is adaptable to this sewing machine. The sewing speed exceeds the max. sewing
speed of this sewing machine and machine trouble will be caused unless a motor pulley which is adaptable
to this sewing machine is used.
When you use a new sewing machine, use the machine at a speed of 3,200 sti/min or less for the first 200
hours (approximately one month). A good result can be obtained in terms of the durability.
Motor pulley and belt
Motor pulley
40˚
5.5 mm
10 mm
M type V belt
Use a clutch motor of 3-phase, 2-pole, 400 W (1/2HP).
Use the M type V belt.
1) The motor pulley shifts to the left-hand side when
depressing the pedal. At this time, install the motor so
that the centers of motor pulley and lower pulley align
with each other.
* For the installing procedure of the motor pulley, refer
to the Instruction Manual for motor.
Lower pulley
2) Install the motor so that the pulley rotates clockwise.
If the machine pulley rotates in the reverse
direction, nomal lubrication cannot be
performed. As a result, machine trouble
will be caused.
* The table shows the numbers
when a 3-phase 2-pole 400 W
clutch motor (1 / 2 HP) is used.
* The commercially-available motor
pulley near to the counted value
is designated since the outside
diameter of the commercially-
available motor pulley counts by
5 mm.
Sewing
speed
(sti/min)
50Hz 60Hz
Pulley size Belt size Pulley size Belt size
2,000 ø 45 M-32 ø 35 M-31
2,500 ø 55 M-32 ø 45 M-32
3,000 ø 65 M-33 ø 55 M-32
3,200 ø 70 M-34 ø 60 M-33
3,500 ø 75 M-34 ø 65 M-33
3,800 ø 80 M-34 ø 70 M-33
4,200 ø 90 M-35 ø 75
M-34
2. Selecting the motor pulley and the belt
3. Installing the motor