9.
Attach the prop bar to the hoops:
Insert a large spacer nut (
m
) between the Q-clip's interlocked
wings, then insert a bolt (
n
) through the wings and close with the small nut (
n
). Make sure the bolt's
tip points inwards so it does not damage the
polythene.
10.
Adjust the prop bar's position
before tightening the nuts.
11. Repeat steps 7 and 9
for the 3 remaining prop bars.
12.
Drill a self-tapping screw
(
o
) into each Q-clip to secure the assembly. Place the screws on the
inward side of the tube so the heads do not damage the polythene.
C) Assembling the door frames
1.
Assemble the door posts and lintel
on a flat surface.
Join the door posts (
e
) and lintel (
f
) with a
nail plate (
h
) on each side.
2.
Mark the position of the door posts on the ground and
dig a hole for each door post
.
3.
Insert P-clips
(
k
)
on the end-hoops
. One on each side.
4.
Position the door frame assembly
directly under the end-hoop with the posts into the ground.
5.
Nail the P-clips to the lintel
(
f
).
6.
Fill in the posts holes
with the excavated soil and stamp the soil around the posts.
7.
Repeat
steps 1 to 6 for the other end of the tunnel.
©Acme Polytunnels-2018
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