Technical information

A-5
© 1997 SGC Inc.
basic cautions when using them:
• When you are applying the suction cups, prepare
the surface by cleaning with mild detergent and
rinsing thoroughly. The clean surface, free of
scratches, will provide superior holding power.
• If the QMS being applied has been used previous-
ly, c lean the suction cups with mild detergent
and water, then rinse thoroughly.
• Spread a thin layer of silicon grease or pharma-
ceutical grade lubricant such as “Vaseline” around
the edge of the suction cup where it comes in
contact with the surface of the vehicle. The lubri-
cant will prevent slow leakage of air, which will
reduce the holding power of the suction cups over
time. It will also protect the painted surface.
Even if the surface of the vehicle is rough, the installation
procedure remains the same. The suction cup will have to be
pressed against the vehicle surface in the same way, but
more lubricant may be necessary.
QMS Straps. The QMS enclosure must be tightly strapped to
the vehicle. To ensure it is properly strapped, grab the base
of the antenna mounted on the QMS and push firmly up and
down. The vehicle should move up and down, but the QMS
should not. If the QMS moves and the vehicle does not,
increase the tension on the QMS straps.
Removing the QMS. Wash the vehicle in the area around
the suction cups before removing. This will reduce any
chance of surface marring.
• Release suction by applying a rolling sideways motion
to the tabs on the suction cups as shown in the follow-
ing drawing:
Caution: In no case should the operator use fewer
than the four straps provided to secure the unit. The
suction cups alone will not provide sufficient mount-
ing for the QMS.