60 708-DS / 709-DS Operator’s Manual
4 Operating the 708-DS / 709-DS
 
Manual Drive Unit Up / Down 
The manual lift is controlled by a knob on the right side of the 
instrument. To adjust the position of the drive unit, loosen the knob and 
raise or lower to the desired position. Tighten the knob to secure the 
drive unit in position.
Figure 25 Manual Lift Knob