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1. Select the location for the concrete base footing. Dig a 12” diameter hole that is 36”deep. In areas
where the normal frost line is below 36” it is advisable to dig to the normal frost line.
(Consult a local concrete contractor if there is any question.)
2. Make sure that you have a level and a broomstick or similar
pole to vibrate air pockets out of concrete. The 12” diameter
by 36” deep hole will require approximately 2.5 cubic ft. of
3000 PSI concrete (6 to 8 60# bags of premix concrete). You
will need to adjust the amount depending on the size of hole
you prepared. Having the proper amount of concrete before
you start will ensure proper strength of the footing.
3. Mix concrete according to the directions on the bag. It is advantageous to have the mixture “wet”. This
will increase your working time and allow batches to mix in the hole.
Pour the hole full to ground level. Attach band clamp to bottom end of pole and insert pole into concrete
while vibrating concrete to allow it to surround the pole completely. The minimum pole height from the
ground should be at least 11’.
4. Clean excess concrete from pole. Level the pole on the hole and allow the footing to cure for seven (7)
days. Only after the concrete has cured for seven days should you proceed.
5. Seven Days have passed. Secure the Extension Arm to the pole at a distance of 9’8” to the bottom of the
arm to the playing surface with the 4-1/2” Ubolts (O), 1/2” Flat Washers (S), 1/2” Lock Washers (T), and
1/2” Hex Nuts (U).
6. Slide the 4-1/2” Band Clamps on to the Extension Arm and attach the Backboard Mounting Bracket (A) to
the end of the Extension Arm with 1/2” Square Head Set Screws (Q). Assembly rim and backboard to the
Backboard Mounting Bracket (A) making sure that they are level. Fasten Backboard Braces (P) to the
backboard with 7/16” x 2” Carriage Bolts (C), 7/16” Hex Nuts (L), 7/16” Flat Washers (M), 7/16” Lock
Washers (N), and to 4-1/2” Band Clamps (B) with 5/16” x 2” Carriage Bolts (H), and 5/16” Flange Nuts.
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1. Select the location for the concrete base footing. Dig a
12” diameter hole that is a minimum of 48”deep. In areas
where the normal frost line is below 48” it is advisable to dig
to the normal frost line. (Consult a local concrete contractor if
there is any question.)
Reference (Figure 1)
2. Make sure that you have a broomstick or similar pole to
vibrate air pockets out of concrete. The 12” diameter by 48”
deep hole will require approximately 3.25 cubic ft. of 3000
PSI concrete (8 to 10 60# bags of premix concrete). You will
need to adjust the amount depending on the size of hole you
prepared. Having the proper amount of concrete before you
start will ensure proper strength of the footing.
3. Mix concrete according to the directions on the bag. It is advantageous to have the mixture “wet”. This
will increase your working time and allow batches to mix in the hole. Pour the hole full to ground level.
Attach band clamp to bottom end of pole and insert pole into concrete while vibrating concrete to allow it
to surround the pole completely. The pole height from the ground should be 11 feet (see Figure 4).
4. Clean excess concrete from pole. Level the pole in the hole and allow the footing to cure for seven (7)
days. Only after the concrete has cured for seven days should you proceed.
5. Seven days have passed. Secure the Extension Arm to the pole at a distance of 9’8” to the bottom of the
arm (see Figure 4) to the playing surface with the 4-1/2” U-bolts (M), 1/2” Flat Washers (Q), 1/2” Lock
Washers (R), and 1/2” Hex Nuts (S). NOTE: Middle hole does not require a Flat Washer (Q)
(see Figure 2).
6. Assemble rim and backboard to the Backboard Mounting Bracket (A) using the hardware provided with
the rim or backboard. Slide the 4-1/2” Band Clamps (B) on to the Extension Arm and attach the
Backboard Mounting Bracket (A) assembly containing the backboard and rim to the end of the Extension
Arm with 1/2” Square Head Set Screws (O) as shown in (Figure 2) making sure rim is level. Fasten
Backboard Braces (N) to the backboard with 7/16” x 2” Carriage Bolts (C), 7/16” Hex Nuts (J), 7/16”
Flat Washers (K), 7/16” Lock Washers (L), or the 3/8” x 1” Hex Bolt (D) , 3/8” Lock Washer (E) and 3/8”
Flat Washer (F), then to the 4-1/2” Band Clamps (B) with 5/16” x 2” Carriage Bolts (G), and 5/16”
Flange Nuts (H) as shown in (Figure 3).
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Figure 2 Figure 3
Figure 1