Brother International BM-917B Instruction Manual - English - Page 9

4. MOTOR 4. MOTOR CAUTION All cords which are connected to the motor should be secured at least 25mm 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. Install the pulley covers (sold separately) to the motor. ! Use the applicable motor shown in the table at right. ! Refer to the instruction manual for the motor for details on installing and using the motor. Power Single-phase Three-phase Motor 4-pole, 250W motor 4-pole, 250W motor ! Select the correct motor pulley and V-belt by referring to the table below to suit the power frequency of your area. ! In case of using the round leather belt or sewing at a speed less than 1500 rpm, please adjust the clutch stop position with the brake so that it may not be unfixed. (Refer to p.20.) Machine speed 1,500 rpm Frequency 50Hz 60Hz Motor pulley (Outer diameter) N-75 pulley(75mm) N-65 pulley(65mm) V-belt M24 M23 Pulley cover Motor Machine head fixing hole Motor pulley center Pulley cover 1967M 3 BM-917B, 917C