Ensure that you follow the procedure referenced in the following step.
This equipment must always be electrically disconnected from the
mains electrical supply (external power source) before beginning any
procedure.
1. Follow the steps outlined in Opening the Master Control, page 1-2 to
page 1-7, to open the Master Control.
2. Locate the Horizontal Pivot Brake (the bar clamped around the
Horizontal Arm pivot post). There are two screws on either side of the
brake.
3. Using a 4 mm Allen wrench, tighten the two screws equally to apply
adequate braking to the pivot post to prevent drifting.
Figure 3-3 Tightening the Pivot Brake Screws
4. Follow the steps outlined in Closing the Master Control on page 1-8 to
close the Master Control.
Tools Required: 4 mm Allen Wrench