GCX VHM Series User manual

DU-WS-0004-59 Rev A 6/15/11 GCX Co rp. Page 1 of 9
3875 Cypress Drive Petaluma, CA 94954 800.228.2555 707.773.1100 Fax [phone] www.gcx.com
Installation & Operation Manual
VHM™ Series Arms with Fixed Angle Front End
WS-0004-59 (40 lb/18.1 kg Max. Weight) & WS-0004-61 (30 lb/13.6 kg Max. Weight)
in Combination with Folding “L” Flat Panel/Keyboard Bracket FLP-0008-41
The purpose of this guide is to:
•Describe parts contained within this kit (page 2).
•Describe installing Adjustable Stop (page 3).
•Describe installing VHM Arm (page 3).
•Describe attaching Folding L-Bracket and Keyboard Tray (page 4).
•Describe attaching Display Mount to Display (page 5).
•Describe attaching Display Mount to L-Bracket (page 5).
•Describe Mouse House installation (page 6).
•Describe Cautions, Warnings, Adjustments, and Cleaning (page 6-10).
Tools Required:
•Phillips Screwdriver (not provided).
•Hex Wrenches – 3mm, 1/8”, 5/32” (provided).
•1/2" Socket Wrench (provided).
•3/4" Socket Wrench (not provided).

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Parts Reference:
The following parts and hardware are included in this kit (hardware not shown).
Item #
Description
QTY
1
VHM
1
2
Folding L Bracket with Hardware
1
3
Display Mountwith Hardware
1
4
Adjustable Channel Stop
1
5
Wall Channel Cover
1
6
3mm HexWrench
1
7
1/8 HexWrench
1
8
5/32 HexWrench
1
9
1/2” Socket Wrench
1
10
Mouse Trap
1
Installation Note: Assembly and Installation of this VHM wall mount kit should be followed in the sequence listed in this
Installation Guide. Please read this Installation Guide prior to installing or using this product.
1
2
3
4
5
8
6
10
7
9

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Installing Adjustable Stop
1. Install Adjustable Stop in top of Channel, slide to desired mounting position and tighten center screw.
Installing VHM Arm into Channel
1. Guide the Slide (rear of Arm) into top of the Channel and lower Arm to desired height. Tighten the (4) Set Screws with
1/8" hex wrench to secure position.
Adjustable Stop
Tighten Center Screw
Slide
Tighten the (4) Set
Screwswith 1/8” Hex
Wrench

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Attaching Folding L-Bracket to VHM Arm
1. Using a 5/32” Hex Wrench, attach folding L- Bracket to VHM arm with (2) 1/4-28 FHSCS.
Attaching Keyboard Tray (not supplied) to Folding L-Bracket
1. Install Keyboard Tray in accordance with separate Installation Guide supplied with Keyboard tray.
Folding L-Bracket
VHMArm
5/32 Hex Wrench
(2) 1/4-28 x 3/4" FHSCS
CAUTION: Do not place fingers in-between Folding Keyboard Bracket Mounting Block and
Mounting Plate surfaces. There is risk of pinching or crushing fingers, especially while
installing keyboard tray and adjusting folding tension.
Mounting Plate
Mounting Block
Folding Keyboard Bracket

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Attaching Display Mount to Di splay
1. Align the (4) mounting holes on the Display Mount with the (4) threaded mounting holes on the display.
2. Using a Phillips screwdriver, secure display mount to display with (4) M4 x 10mm Pan Head Machine Screws (PHMS).
Attaching Display Mount to Folding L-Bracket
1. Install Display Mount to Folding L-Bracket as shown below. The (4) upper and lower nylon washers should be
positioned against the Folding L-Bracket. The (4) upper and lower metal Flat Washers should be positioned against the
Display Mount, Adjustment Knob, and the 5/16” Locknut.
2. Using a 1/2” Socket Wrench (supplied), tighten the 5/16” Locknut until Display Mount moves up and down with
resistance. Tighten Adjustment Knob until Display Mount does not move. Press protective cover onto the 5/16” locknut.
Adjustment Knob
(4) M4 x 10mm PHMS
Display Mount
5/16” Locknut
1/2"-13mmSocket Wrench
(supplied)
Nylon Washer
Flat Washer
Display Mount
Nylon Washer
Flat Washer
Display
Protective Cap

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Attaching Mou se 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 counterbalance the mounted instrument throughout the Arm’s vertical range of motion.
When properly counterbalanced, the VHM Arm will maintain 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.
WARNING: 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 Counterbalance Adjuster is accessible.
3. With the 1/2" [13mm] socket wrench on the Adjuster, carefully unlock the arm. Turn the Adjuster counterclockwise
(CCW) to increase counterbalance force, or clockwise (CW) to decrease counterbalance force. Counterbalance is
correctly adjusted when the mounted 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
CounterbalanceAdjuster Bolt
Adjuster Cover
1/2” [13mm] Socket Wrench
CW Decreases Force

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Adjusting Folding Tension on the Keyboard Bracket
If the Folding Keyboard Bracket becomes difficult to fold or will not maintain the folded (upward) position, adjust folding
tension as described below:
1. Pry Plastic bolt covers off each end of the Tension Bolt. Replace bolt covers after adjustment. Using a 1/2" wrench on
each end of the bolt, tighten or loosen bolt until desired tension is achieved.
Adjusting Swivel Tension
1. To adjust the swivel tension, tighten or loosen the Swivel Tension Nut with a 3/4" socket wrench. VHM shown without
L-Bracket for detail purposes.
Display Mount Height Adjustment
1. To adjust the height of the display, support the display and loosen the adjustment knob. Move the display to desired
location and tighten adjustment knob to secure position.
Folding Tension Bolt
Folding Tension Bolt
Swivel Tension Nut
Adjustment Knob

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Di splay Mount Tilt Tension Adjustment
1. Using a 1/2" socket wrench on each end of the tilt tension bolt, tighten or loosen bolt (located on the display mount)
until desired tension is achieved.
Cable Management
•Channel Covers (not shown) are provided for routing cables along the Wall Channel. Please refer to installation guide
(DU-UT-0001-20) included with Channel Covers.
•Cable Guides (2) snap into grooves on the underside of the Arm as shown below left.
•Cable Retainers(2) are provided behind the Folding Keyboard Bracket (below center) for routing keyboard and mouse
cables.
•Nylon Cable Ties (2) (below right) are provided for bundling cables together if desired.
Cable Guides (2)
Cable Ties (2)
Cable Clips (2)
Tension Bolt

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Routine Maintenance
Periodically check all mounting hardware. Tighten as necessary for optimal operation.
Cleaning the Mounting Assembly
CAUTION: GCX makes no claims regarding the efficacy of the listed chemicals or processes as a means for controlling
infection. Consult your hospital’s infection control officer or epidemiologist. To clean or sterilize mounted instruments or
accessory equipment, refer to the specific instructions delivered with those products.
1. The mounting assembly may be cleaned with most mild, non-abrasive solutions commonly used in the hospital
environment (e.g. diluted bleach, ammonia, or alcohol solutions).
2. The surface finish will be permanently damaged by strong chemicals and solvents such as acetone and
trichloroethylene.
3. Do not use steel wool or other abrasive material to clean the mounting assembly.
4. Damage caused by the use of unapproved substances or processes will not be covered by warranty. We
recommended that you test any cleaning solution on a small area of the arm that is not visible to verify compatibility.
5. Never submerge or allow liquids to enter the mounting assemblies. Wipe any cleaning agents off of the mounting
assemblies immediately, using a water-dampened cloth. Dry parts thoroughly after cleaning.