The hand unit has two switch-adjustable slow speeds which normally ramp up to a fast speed after two seconds.
Placing the slow-speed switch between the two normal positions (high and low) will cause the speed selection to be overridden and the motor will run at very fast speed (5) at all times.
Suits all JMI MotoFocuser , Meade #1209 Zero Image Shift Micro Focuser and others.