www.johnnyseeds.com
16
3.
Angle Braces:
At this point, these
must be installed so that all bows are
vertical and plumb.
a. In one corner of the tunnel, slip a
1-3/8" brace band over the end
wall bow, two 1-5/8" brace bands
over the second ground post, and
one 1-5/8" brace band over the
third ground post.
b. Position the 1-5/8" brace band on
the third hoop's ground post at
ground level, with its tabs pointing
toward the closest end of the
tunnel, compress them with a pair
of needle nose Vise Grips. Loosely
secure one end of an angle tie to
the brace band with a 5/16"-18 x
1.25" carriage bolt and 5/16" nut.
Remove the Vise Grips.
c. Raise the opposite end of the
angle tie up and rest it against the
next bow. Slide both 1-5/8" brace
bands up the second ground post
until the lower brace band is
aligned to receive the end of the
angle tie. Clamp in place with the
Vise Grips. Loosely secure with a
5/16"-18 x 1.25" carriage bolt and
5/16" nut. Remove the Vise Grips.
d. Position the second brace band on
the second bow so that it is resting
on the previously attached brace
band and pointing toward the
closest end of the tunnel. Clamp
with the Vise Grips and loosely
secure with a 5/16"-18 x 1.25"
carriage bolt and 5/16" nut.
Remove the Vise Grips.
e. Raise the opposite end of the
angle tie up and rest it against the
end wall bow. Slide the 1-3/8"
brace band up the end wall bow
until the brace band is aligned to
receive the end of the angle tie. Clamp in place with the Vise Grips. Loosely secure with a 5/16"-18 x
1.25" carriage bolt and 5/16" nut. Remove the Vise Grips.
f.
Using a plumb bob or long level, adjust the end wall bow so that it is plumb (vertically level). All bows
should move together. While holding the end wall in that position, quickly tighten all the nuts on the
angle ties' brace bands.
g. Secure all brace bands installed above from inside the tunnel with #10 x 3/4" hex-head self-drilling tek
screws by screwing through the side of the brace band and into the bow or ground post. This will
prevent any slippage later on.
h. Repeat steps 3.a. through 3.g. for all four corners of the tunnel.
3.b.
3.c.
3.d., g.
3.e.
3.a. - g.
7617.999 Rev 06/21/2021 | AL, JG, ms