Technical information

sion can be applied from the bottom straps (why work
against gravity?).
If the QMS is mounted on a horizontal surface, such as a roof
or trunk top, start tightening the straps in any order. Pull
the straps as tight as possible, so that as little “play” as pos-
sible when the straps are pushed in from their center.
The idea here is that it is sometimes easy to get carried
away with over tightening
the straps. After each con-
secutive “pull,” feel the strap
tension, and look at the lip or
edge that the steel hooks
ride on to see if the steel is
showing signs of bending or
deforming. If so, back off the
tension a bit Remember, the
suction cups are the primary
devices that are fastening
the QMS box to the vehicle.
The straps are there just to
keep the cups compressed.
Tighten twice: Tighten set-
up straps initially, then once
again after a day or so of
driving. Some play and
stretching will occur after the
initial tightening, so the sec-
ond one will actually be the
“final” one to take up any
slack for the duration.
You can snake any excess strap length back inside the QMS
box, trim it off with a pair of utility scissors or sharp knife,
or roll or fold up the excess length and secure it using nylon
wire ties.
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© 1997 SGC Inc.
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
P.O.Box 3526, 98009 Fax: 425-746-6384 or 746-7173 Tel: 425- 746-6310 or 1-800-259 7331
E-mail: SGCMKTG@aol.com Website: http://www.sgcworld.com
Figure 14 — Tighten straps
to maintain pressure on
suction cups. Plan to
retighten straps after dri-