Does the Hawk electronic tension head need 5 minutes warm up time?
No, the Hawk electronic tension head utilizes the DC (direct-current) motor. It does not need any warm up tume at all. You just need to turn on the power switch and start to pull the tension immediately. • Does the AC motor need 5 minutes warm up time? Actually the AC motor does not need any warm up tume at all. You can connect the power input and start to pull the tension immediately. But when the AC motor gets warm, it lowers tension. It means that when the AC motor is cold, it put higher tension. When the AC motor is warm, it put lower tension. On the front panel of Silent Partner’s AC motor electric tension head, it indicates that “RUN FREE FOR 5 MIN TO WARM UP”. What is the reason? Just because the AC motor gets warm, it lowers tension. Silent Partner uses this statement to cover up this fact. • I notice that most of the table-top or portable stringing machines are the drop-weight type. Is there any advantage of drop-weight over the manual crank type? The drop-weight machines are
