14
The
Straight Side
and
Mid-Section
can be preassembled to save time.
It is recommended that the side
sub-assemblies be assembled
on a flat surface so parts will be
aligned properly.
Insert the
Straight Side
into the
Mid-Section
.
See Detail A.
Secure frame sections together using 1/4
-14 X
1
self-drilling screws (NB1809) installed at
each connection as shown in Detail B.
NOTE: Do not Install the self-drilling screws
so that the heads of the screws face upwards.
Doing so will allow the screw heads to come in
contact with the Poly Sheeting Cover causing
damage to the Poly Cover when it is pulled over
the frame later.
Place a mark on all Mid-Section Tubes to
indicate correct location for Purlin Cross Con-
nectors. (See illustration at right. Also refer to
pages 18–19 for Side Purlin installation details).
• For a 20
FieldPro, place a mark 15 1/2
from the swaged end.
• For a 24
FieldPro place a mark is 22
from the swaged end.
Building Side Sub-Assembly
Mid-Section
20
FieldPro – HP3542
Straight Side
20
FieldPro – HP3540
24
FieldPro – HP3543
Mid-Section
24
FieldPro – HP3545
Place mark here for
Purlin location.
Nominal
Dimensions
2
15-
1/2
1
NB1809
Two, (2) 1/4
-14 x 1
Self-Drilling Screws
22
Detail A
Detail B
Instructions on this page apply to 20
& 24
FieldPro Models
Instructions on this page apply to 20
& 24
FieldPro Models
1
2
3