Maintenance
Preva
104
Outside
Articulating
Arm Vertical
Movement
1. Remove the plastic trim covers from the end of the Articulating Arm nearest to
the Tubehead.
2. Position the Articulating Arm with the arm nearest the Tubehead fully upward.
3. Insert a 9” [23 cm] long 8 mm Allen wrench (T-handle) into the adjustment
nut, as shown in Figure 102. Turning the wrench clockwise will cause the
Control Unit side of the Articulating Arm to lift. Turning it counterclockwise will
cause it to drop.
4. Adjust as necessary until the Control Unit side of the Articulating Arm no
longer drifts.
5. Replace the plastic covers on the end of the Articulating Arm.
Figure 102
Adjusting
Vertical
Movement of the
Articulating Arm
Control Unit
Side of
Articulating
Arm Balance
Adjustment
1. Remove the plastic covers at the top of the Articulating Arm.
2. Position the Articulating Arm at a 45-degree angle.
3. Place a 9” [23 cm] long 8 mm Allen wrench (T-handle) into the adjustment nut
inside the Articulating Arm, as shown in Figure 103. Turning the wrench
clockwise will cause the Control Unit side of the Articulating Arm to lift.
Turning it counterclockwise will cause it to drop.
4. Adjust as necessary until the Control Unit side of the Articulating Arm no
longer drifts.
5. Replace the plastic covers on top of the Articulating Arm.
Figure 103
Adjusting
Articulating Arm
Balance
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