GROWSPAN
™
ROUND PREMIUM HIGH TUNNELS
8
Revision date: 01.01.20
ASSEMBLING THE HIGH TUNNEL FRAME
COMPONENTS
NOTE
: Assistance is required to assemble the high tunnel
frame.
RAFTER ASSEMBLY
Gather the Parts:
• Rafter pipe #14R1301
• Rafter pipe #14R1302
• Rafter pipe #131S027D
• End clamp (#102855) and band clamp (#QH1400)
• Tek screws
• Nut setter (3/8'' x 2-9/16 magnetic)
Rafter Assembly Procedure
Each rafter assembly consists of six (6) rafter sections:
three (3) swaged sections, one (1) non-swaged section,
and a pair of swaged extensions (drilled for ground posts).
1. Select the six (6) pipes needed to assemble a rafter
and arrange these on a flat surface as shown below for
assembly.
2. Slide the swaged portion of each rafter pipe into the
plain end of the pipe as shown.
3. With the main rafter pipes seated at each joint and the
rafter positioned on a flat surface, secure each joint
with a single self-tapping Tek screw.
ATTENTION:
Do not secure the drilled leg pipes until
rafter is secured to the ground posts. This allows holes
in rafter legs to be aligned with those in ground post.
Install the screws so they will not touch the cover once
it is installed. This is typically on the backside of the
rafter, which will be the surface visible from the
inside
of the high tunnel once the frame is assembled.
4. Assemble rafters as described and continue with the
additional steps to complete the assembly of the two
(2) end rafters.
END RAFTER ASSEMBLY
In addition to the steps in the previous procedure, complete
the following steps
for the two (2) end rafters only
.
1. Take one of the assembled rafters and place it on a flat
surface.
2. Slide one (1) end clamp (#102855) and two (2) band
clamps (#QH1400) onto the rafter in the location noted
below. Band clamp is placed on the end rafter legs
approximately 4' from the bottom of the rafter.
NOTE:
Do not secure the clamps to the rafter at this
time. These clamps will be repositioned during the
frame assembly when the purlins are added. Use a
piece of duct tape (if desired) to keep the clamps from
sliding when the rafter is lifted into position. View of the
end rafter and clamp as shown from the
outside
when
the frame is assembled.
3. Repeat the same procedure for the final end rafter.
4. Continue with the
Frame Assembly
instructions.
1˝
Tek screw
(#14R1301)
(#14R1302)
(#131S027D)
(#14R1303)
4'
