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6. SEWING SPEED TABLE
Operate the sewing machine at a speed equal to or lower than the maximum sewing speed selected from
those shown in the table below according to the sewing conditions.
For the PLC-2710-7 and -2760-7, the speed setting according to the amount of the alternating vertical move-
ment of the walking foot and presser foot is automatically carried out
[PLC-2710, 2710-7, 2760, 2760-7, 2765]
Amount of alternate vertical
movement of the walking foot
and presser foot
3 mm or less
3.25 mm to 4 mm or less
4.25 mm to 5 mm or less
5.25 mm to 9 mm or less
[PLC-2760L]
Amount of alternate vertical
movement of the walking foot
and presser foot
3 mm or less
3.25 mm to 4 mm or less
4.25 mm to 5 mm or less
5.25 mm to 9 mm or less
7. MOTOR PULLEY AND V-BELT
Use the M-type belt.
The relation among the motor pulley, the belt length and the sewing speed is as shown in the table below.
Model
Sewing speed
PLC-2710
PLC-2760
2,500sti/min
PLC-2765
PLC-2760L
2,000sti/min
* Use a 3-phase, 400 W (1/2 HP) 2P or 4P clutch motor.
Stitch length : 7 mm or less
2,500 sti/min
2,200 sti/min
2,000 sti/min
1,800 sti/min
Stitch length : 7 mm or less
2,000 sti/min
2,000 sti/min
2,000 sti/min
1,800 sti/min
Effective
Number
diameter of
of poles
handwheel
2
ø76.0
4
2
ø76.0
4
– 43 –
Stitch length :
More than 7 mm to
9 mm or less
2,000 sti/min
2,000 sti/min
2,000 sti/min
1,800 sti/min
Stitch length :
More than 7 mm to
9 mm or less
2,000 sti/min
2,000 sti/min
2,000 sti/min
1,800 sti/min
Number of
Frequency
revolutions of
motor
50Hz
2,840 rpm
60Hz
3,400 rpm
50Hz
1,430 rpm
60Hz
1,715 rpm
50Hz
2,840 rpm
60Hz
3,400 rpm
50Hz
1,430 rpm
60Hz
1,715 rpm
Stitch length :
More than 9 mm to
12 mm or less
1,800 sti/min
1,800 sti/min
1,800 sti/min
1,800 sti/min
Stitch length :
More than 9 mm to
12 mm or less
1,800 sti/min
1,800 sti/min
1,800 sti/min
1,800 sti/min
Effective
V-belt
diameter of
size
motor pulley
ø65
M52
ø55
M51
ø130
M57
ø110
M55
ø55
M51
ø45
M50
ø105
M54
ø90
M53
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