DU-WS-0012-01 Rev B 5/24/16 GCX Corp. Page 15 of 15
Symptom
Possible Cause
Remedy
Mounted device does not appear level
or parallel to the floor.
Channel not plumb. Check with
level.
Adjust Channel to plumb, or reinstall
Channel.
Weight of device not compatible
with Load Rating of the Arm.
Mount device on arm with compatible
Load Rating (section 3.0)
Swivel hardware loose.
Adjust Swivel Tension Nut (section 7.3).
Pivot hardware loose.
Adjust Pivot Tension Nut (section 7.4).
Mounting surface (e.g. wall, side of
anesthesia machine, etc.) not
structurally sound (does not hold
mounting hardware).
Mounting surface must be reinforced or
Channel must be relocated.
Channel loose at mounting
surface.
Check for plumb and tighten, or relocate
(reinstall) Channel.
Mounted device drifts up or down.
Arm not counterbalanced correctly
for weight of the device.
Perform counterbalance adjustment
(section 7.1).
Weight of mounted device not
compatible with Load Rating of
Arm.
Use arm with compatible Load Rating
(section 3.0).
Mounted device difficult to move up or
down.
Arm not counterbalanced correctly
for weight of mounted device.
Perform counterbalance adjustment
(section 7.1).
Arm pivots too freely.
Pivot tension is too loose.
Adjust Pivot Tension (section 7.4).
Arm is difficult to pivot.
Pivot tension is too tight.
Device swivels too freely.
Swivel tension is too loose.
Adjust Swivel Tension (section 7.3).
Device is difficult to swivel.
Swivel tension is too tight.
Device is difficult to tilt.
Tilt tension is too tight.
Adjust tilt tension (section 7.2).
Device will not maintain tilt position.
Tilt tension is too loose.
Arm inadvertently slides down
Channel.
Set Screws (4) in Slide are loose.
Reposition Arm, tighten set screws in
slide, and secure adjustable stop (section
5.2 and 5.4).
Adjustable Stop is loose or
missing.
Install or secure adjustable stop (section
5.2).
VHM-PL (locking) handle actuation
does not operate correctly (arm will
not lock or will not unlock):
Contact GCX
VHM-PL (locking) remains un-locked
Handle Grip locked open for
Counter Balance adjustment
Remove hex key (section 7.1)
Troubleshooting the VHM-P and VHM-PL Arm
13.0
