Yamato VF2400 class User Manual

8
VF2400
2. Installation
2.3 Motor, pulley and belt
Fig. 2-10
Table 2
M type of V-belt
58 ㎜
5.5 ㎜
10 ㎜
40°
See the instruction manual for the motor used and install
the motor properly.
Clutch motor:
To install the clutch motor, align the center of the machine
pulley with that of the motor pulley when the motor pulley
shifts to the left while toeing down the pedal.
Note: Table 2 shows the outside diameter of the motor
pulley, sewing speed of the machine, and size of the
belt when using a clutch motor of 3-phase, 2-pole,
550 W (3/4 HP).
The outside diameter on the table shows the near-
est size to the calculated values based on the com-
mercial available pulleys at intervals of 5 mm.
Use only those motor pulleys applicable to the machine. If
not applicable, the sewing machine will be over maximum
and it can cause the damage to the machine.
Servomotor:
Use a servomotor with 500 W or more.
Calculate the outside diameter of a motor pulley from the
formula as below.
Or see Table 3 to select a proper motor pulley.
Outside diameter Usual sewing speed
of motor pulley Servomoter speed
= × 58 + 5 mm
Table 3
Outside
diameter of
pulley
(㎜)
Sewing speed
of machine
(sti/min)
Belt size
50 Hz 60 Hz Table top
Semi-
submerged
80 4500 M33 M34
85 4800 M33 M34
90 5100 M34 M35
95 4500 5350 M34 M35
100 4800 5650 M34 M35
105 5000 5950 M35 M36
110 5250 6200 M35 M36
115 5500 6500 M35 M36
120 5750 6800 M36 M37
125 6000 M36 M37
130 6200 M36 M38
135 6450 M37 M38
140 6700 M37 M38
145 6950 M38 M39
Sewing speed
of machine
(sti/min)
Outside diameter of motor pulley
(mm)
rpm of servomotor
3000 rpm 3600 rpm
4200 86 73
4500 92 78
4700 96 81
5000 102 86
5200 106 89
5500 111 94
5800 117 98
6000 121 102
6200 125 105
6500 131 110
7000 140 118

Yamato VF2400 class Specifications

General

Brand	Yamato
Model	VF2400 class
Category	Sewing Machine
Language	English