DU-WS-0004-59 Rev A 6/15/11 GCX Corp. Page 6 of 9
Attaching Mouse House
1. Remove the backing from the Self Adhesive strip located on the back of the Mouse House.
2. Position Mouse House towards the bottom of the Folding L-Bracket and apply pressure for 30 seconds.
Adjusting Counterbalance
The VHM Arm must be adjusted to counterbalanc e the mounted instrument throughout the Arm’s vertical range of motion.
When properly count erbalanced, the VHM Arm will maint ain its height when the Locking Lever or Locking Knob is
disengaged. Because instrument weights vary, adjustment will typically be required to achieve optimal performance. A
1/2" [13mm] socket wrench is provided for this critical adjustment.
WARNI NG: Do not attempt counterbalance adjustment unless the instrument and accessories are
mounted on the Arm. Use caution while performing this procedure.
1. Grasp the Arm behind the mounted instrument(s) to prevent sudden upward motion. Carefully unlock the Arm and
move it to a horizontal position that allows access to the Adjuster Cover (below left). Lock Arm in horizontal position.
2. Open the Adjuster Cover by inserting a flat blade screwdriver in the slot at the rear of the Cover and prying upward. If
necessary unlock and readjust the Arm until the Counterbalance Adjuster bolt is accessible through the Adjuster Cover
(below center). Lock Arm when Count erbalance Adjuster is accessible.
3.
With the 1/2" [13mm] socket wrench on the Adjuster, carefully unlock the arm. Turn the Adjuster
counterclock wise
(CCW)
to increase counterbalance force, or
clock wise (CW)
to decrease counterbalance forc e. Counterbalance is
correctly adjusted when the mount ed instrument can be moved up or down with minimal force and does not rise or fall
after releasing the Arm.
4. Close the Adjuster Cover
Remove Backing
Counterbalance Adjuster Bolt
Adjuster Cover
1/2” [13mm] Socket Wrench
CW
Decreases Force