Part No. 6100001 Rev 6/17 Installing Tunnel Shu:ers® Page 16
5.15 Set Pinions
Using a 2_ Carpenter’s Square hold
one edge of the square firmly up
against the side of the top secRon of
the Tie-‐Bar and parallel to the Top
Shu:er lower edge (see pic 1).
Now lay the other edge of the square
directly on the center of the Rack Arm.
The edge of the square should split the
channel of the Rack Arm (see pic 2).
With the Pinion sibng in this posiRon,
mark both sides of the Pinion onto the
sha_ using a permanent marker. This
will be the exact locaRon of the Pinion
which will be directly in line with the
Tie-‐bar.
1
2
3
With all Shu:er Units hanging freely and in the exact
same near closed posiRon
, firmly Rghten down both set
screws with a 4mm Allen wrench while the Pinion is
posiRoned on the marks. ConRnue this procedure for
each Pinion.
Con$nue to next page….
