D
A
E
B
C
Well-designed, quality tools and equipment
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CLASSIC
CLASSIC PRO
GOTHIC
GOTHIC PRO
UPGRADE
1.
Assemble cross connectors. Make sure nuts are loosely
threaded on bolts.
2.
Place cross connectors on center of bows. Position your-
self between the second and third bows and place a cross
connector on each bow.
3.
Slide a 78" swaged purlin tube through both connectors
with swaged end facing down the tunnel.
4.
Now position yourself under the first bow and slide
another 78" swaged tube into the tube you just placed
between the second and third bow. Slide the two sections
of tube down the length of the tunnel until the purlin tube
is flush with end bow.
5.
Install tube strap. Use one tube strap and three self-
tapping screws to attach the purlin tube to the first bow.
tools needed
•
Ladder
•
Drill or Impact Driver
•
5/16" Driver Bit
•
7/16" Socket or Wrench
•
Level (Optional)
materials included
A
Tube Strap
B
Cross Connectors with
Hardware
C
Self-Tapping Screws
D
78" Swaged Purlin Tubes
E
75" Non-Swaged Purlin
Tube
S T R U C T U R E & S U P P O R T
Solid Center Purlin
Watch the video!
Scan the code or viSit:
fflc.us/solid-purlin/v
Step 2
Step 5
StepS 3 and 4
Step 6.2
Step 6.1
6.
Install a self-tapping screw in each purlin tube joint.
Make sure screw is facing down to avoid damage to plastic.
Ensure bows are visually plumb, then tighten the cross
connector.
7.
Continue adding purlin tubes and cross connectors
down the length of the tunnel. Adjust for center alignment
as you go and add one self-tapping screw to each purlin
joint. The purlin will terminate with the 75" non-swaged
tube and the last tube strap on the end bow.
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