Owner's Manual

T-8420B, 8450B, 8720B, 8750B
3. TABLE AND MOTOR
3
3. TABLE AND MOTOR
A. Table processing diagram
y The top of the table should be 40 mm in thickness and should be strong enough to hold the weight and with-stand the
vibration of the sewing machine.
y Drill holes as indicated in the illustration below.
B. Motor
CAUTION
All cords should be secured at least 25 mm away from any moving parts. Furthermore, do not excessively bend the
cords or secure them too firmly with staples, otherwise there is the danger that fire or electric shocks could occur.
<Motor>
Use one of the clutch motors given in the table at right as the motor.
Refer to the instruction manual for the motor for details on installing
and using the motor.
<Motor pulley and V-belt>
Select the correct motor pulley and V-belt by referring to the table below to suit the power frequency of your area.
Sewing speed Frequency Motor pulley (Outer diameter) V-belt
50 Hz Motor pulley 100 46
4,000 rpm
60 Hz Motor pulley 85 45
50 Hz Motor pulley 90 45
3,500 rpm
60 Hz Motor pulley 70 44
50 Hz Motor pulley 75 44
3,000 rpm
60 Hz Motor pulley 65 43
Power Motor
Single-phase 2-pole, 400 W motor
Three-phase 2-pole, 400 W motor
Motor mounting holes
Head rest hole
Ground wire hole
Cotton stand hole
2958M