198823 R11
17
3. Cut a screeder board to the dimensions shown in
Figure 3 on page 17
and
Table 2 on page 17
.
a. Fasten the center pivot and leveling bracket / re-bar assembly to the screeder as shown in
Figure 3 on
page 17
.
b. Drive a 20” piece of 10M or #4 re-bar into the ground where the center point of the bin will be.
c. Rotate the screeder bar around the center point, using the re-bar to mark a circle.
This will provide a starting layout for form assembly.
d. Drive a 20” piece of 10M rebar into the ground where centre point of bin will be.
e. To determine how deep to drive this centre pin, place the screeder assembly over the pin and drive it in
until level, when the end of the scriber is just scraping the gravel base.
f.
Level the gravel around the footing location, using a level as shown in
Figure 3 on page 17
.
4. Remove the scriber from the screeder and fasten the wear angle as shown in
Figure 3 on page 17
.
Figure 3.
Screeder
Part Number: 198823
Revision: 9
SEALFORM CONCRETE FORM
INSTALLATION AND STORAGE INSTRUCTIONS
SITE SELECTION AND PREPARATION
1.
Choose a firm, level, well drained site. Consult grain bin manual for general site considerations.
IMPORTANT: The Concrete Form foundation may transfer up to 2500 lb/ft
2
to the soil. Table 1 gives general soil
bearing values to be used for comparative purpose only. The intended site should be checked for
adequate bearing capacity.
Table 1: Presumptive Bearing Capacity of Soils
Class
Material
Capacity (lb/ft
2
)
(KPa)
7
Hard dry consolidated clay
10000
479
8
Loose coarse to medium; medium compact fine sand
8000
383
9
Compact sand clay soils
6000
287
10
Loose fine sand; medium compact sand; inorganic silt soils
4000
192
11
Firm or stiff clay
3000
144
12
Loose saturated sand clay soils; medium soft clay
2000
96
2.
Remove top soil within outside radius (“A”) specified in Table 4 and replace with coarse gravel as shown in Figure 3.
IMPORTANT: Any gravel used under the foundation must be compacted with a minimum 2500 lb/ft
2
.
3.
Cut a screeder board to the dimensions shown in Figure 1 and Table 2. Fasten center pivot and leveling bracket / re-bar
assembly to screeder as shown in Figure 1. Drive a 20” piece of 10M or #4 re-bar into the ground where center point of
bin will be. Rotate the screeder bar around the center point, using the re-bar to mark a circle. This will provide a starting
layout for form assembly. Drive a 20” piece of 10M rebar into the ground where centre point of bin will be. To determine
how deep to drive this centre pin, place screeder assembly over pin and drive in until level when end of scriber is just
scraping gravel base. Use a level as shown in Figure 1 and level gravel around footing location as necessary.
4.
Re
CENTER PIVOT
B
2 x 4
LEVEL
A
ROD
2”
WEAR ANGLE
LEVELING BRACKET
IMPORTANT: The Concrete Form foundation may transfer up to 2500 lb/ft
2
to the soil. Table 1 gives general soil
bearing values to be used for comparative purpose only. The intended site should be checked for
adequate bearing capacity.
IMPORTANT: Any gravel used under the foundation must be compacted with a minimum 2500 lb/ft
2
.
Table 2.
Screeder Dimensions
Dimension
14’
19’
A
92 3/4”
120”
B
82 3/4”
114 5/8”
5. To assemble the form, insert punches in the top and bottom vertical seam joint holes of the sheets and pull
them to one side so that the finished form will be the smallest diameter.
a. Install and tighten 3/8” x 1” bolts in all seams and remove the punches.
b. Install and tighten the bottom bolts.
SEALFORM CONCRETE FORM – GRAIN BIN
5. ASSEMBLY
