Bison BA870AA User manual

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P A R T S L I S T
Item Qty Description Item Qty Description
A 1 Vertical Pole T 1 1/2” X 5” Hex Bolt
B 1 Pole Cap U 6 1/2” X 1 1/4” Hex Bolt
C 1 Upper Extension Arm V 7 1/2” Lock Washer
D 1 Lower Extension Arm W 7 1/2” Hex Nut
E 1 Pole Mounting Channel X 1 5/8” X 5” Hex Bolt
F 2 Crank Mount Plate Y 1 5/8” Nyloc Nut
G 1 Crank Mount Spacer Tube Z 8 3/8” X 2 1/2” Hex Bolt
H 3 3/4” X 13” Hex Bolt AA 8 3/8” Lock Washer
I 7 3/4” Jam Lock Nut AB 8 3/8” Hex Nut
J 1 Crank AC 4 3/4” X 3” Hex Bolt
K 1 Crank Handle AD 2 1/4” X 2 1/2” Fully Threaded Hex Bolt
L 1 Height Gauge AE 3 1/4” Flange Nut
M 1 Pointer AF 1 BA42G or BA42U Clear Backboard (If Applicable)
N 8 Backboard Mounting Tab AG 1 Goal with Hardware (depending on system)
O 4 Backboard Mount Shim AH 1 BA870PP Pole Padding (if applicable)
P 8 Extension Arm Plug AI 1 BA72U Backboard Padding (if applicable)
Q 3 6” Square U-Bolt AJ 4 1 1/2” Thin Washer
R 6 5/8” Lock Washer AK 4 3/8” X 3 1/2” Hex Bolt
S 6 5/8” Hex Nut AL 1 PR98S Hardware (If Applicable)
AM 1 BA47 Steel Backboard (If Applicable)
Warning!!!
The extension arm’s and backboard are EXTREMELY heavy. Stay away from the area below the extension
arm/backboard while installing or adjusting. Severe injury or death may occur.
♦ Inspect all contents prior to installation. Report any missing parts to dealer immediately.
♦ Read all instructions before proceeding.
Date: 7/06/05 Rev: 4 B.A. N.J.C. File: \bison server\publisher\870AA Ref#: 920298
Customer Service
[phone]
—— Instruction Manual ——
MODEL BA870AA
6” Square Adjustable Pole System
For Basketball Systems Using
Including PR98U, PR98G, PR98S and BA9885

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1. Locate the desired place to dig the hole for the
Vertical Pole (A) taking into consideration
that the Backboard (AF) face will be
approximately 50” from the front of the pole
(53” to the center of the pole) when the rim is
adjusted to official 10’ height. At the 7 ½’ rim
height location, the front of the pole is
approximately 66” from the face of the
backboard. See Figure 1.
2. Once the desired position is selected, dig a
12” minimum diameter hole 48” deep. It is
advisable to bell out the bottom 10” of the
hole 4” larger in diameter. A larger hole is
always better than a smaller hole.
3. Make sure you have the following tools
available prior to mixing the concrete: level,
broomstick or similar pole, bracing material
and tape measure. If your hole is sized as
described, you will need approximately 10
bags of premix concrete (1/3 cubic foot size).
4. Mix concrete according to instructions on the bag. It is advantageous to have the mixture be “wet”.
This will increase your working time and allow the batches to mix in the hole. Pour the hole full to
ground level. Insert the broomstick into the wet concrete and agitate up and down, REPEAT
SEVERAL TIMES. Insert the Vertical Pole (A) into the concrete while continuing to agitate
broomstick to ensure the mixture fills in completely around the vertical pole. Make sure front side of
pole is square to the court. Clean excess concrete off of the vertical pole with a damp towel and
smooth the top of the footing. Level the vertical pole and apply bracing materials if necessary to
support while concrete cures. Do not install pole into hole and fill around the pole as it will reduce
strength.
5. Allow a minimum of 48 hours for the concrete to cure before proceeding with the installation.
50" AT 10'
100" MIN 77"
66" AT 7 1/2'
AG
AF
D
C
J
B
A
E
F
Figure 1
Very Important!
Make sure that at least 100” of pole extends above desired playing surface directly below the rim location to
ensure official 10’ playing height. Failure to do so will not allow 10’ rim height adjustment.
Notice!
If you have purchased the removable pole please follow the instructions included with the BA79UGP
package to prepare hole and footing. Follow instructions #1 through #5 below for the permanent in
ground pole option. Following instructions #6 through #22 will complete system installation.

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6. Mount the two Crank Mount Plates (F) to the bracket on the inside of the Pole Mounting Channel (E).
The plates should be positioned as shown in Figure 2. Use the ½” x 1¼” Hex Bolts (U), ½” Lock
Washers (V), and ½” Hex Nuts (W). Prior to tightening these bolts, install the Crank Mount Spacer
Tube (G) in between the crank mount plates using the ½” x 5” Hex Bolt (T) and ½” Lock Washer (V)
and ½” Hex Nut (W). Tighten all bolts. See Figure 2.
7. Install the Pole Mounting Channel (E) to the front side of the pole using the 6” U-Bolts (Q), 5/8”
Lock Washers (R), and 5/8” Hex Nuts (S). The bottom of the pole mounting channel should be 77”
above the playing surface for proper installation and height adjustment. Tighten nuts. See Figure 1.
8. Install Extension Arm Plugs (P) into the ends of both the upper and lower extension arms.
9. Select the Lower Extension Arm (D). You can identify it as the arm that DOES NOT have the welded-
on pivot tubes to mount to the top of the crank.
10. Install the Lower Extension Arm (D) to the Pole Mounting Channel (E) by lining up the hole in the pole
end of the Lower Extension Arm (D) with the lower pivot holes in the Pole Mounting Channel (E), use
the3/4” X 13” Hex Bolt (H), 1 1/2” Thin Washer
(AJ)and 3/4” Jam Lock Nut (I). Tighten
completely and back off 1/2 turn as the bolt is
used as a pivot and must move freely. See Figure 3
GV
W
W
V
U
TF
THIS END UP
ASSEMBLED VIEW
YOU MUST INSTALL
CRANK MOUNT PLATES (F)
TO THE OUTSIDE OF BRACKET
AS SHOWN.
MAKE SURE THESE HOLES ARE
POSITIONED AS SHOWN.
Figure 2
D
C
J
UPPER EXTENSION ARM
PIVOT LOCATION
HI
PLAYING SURFACE
I
AC 3' TEMPORARY SUPPORT
HI
AJ
AJ
AJ
H
I
E
Figure 3
NOTE:
Instruction number 12 is specific to installing a clear
backboard (AF). If you are installing a steel backboard
(AM) you will want to refer to the BA870AAS
Bracket Assembly instructions. Those instructions will
assist you in preparing your backboard to be installed
on the pole system. You will continue your installation
process with instruction number 13 on the following
page for all types of backboards.

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11. Intall the Upper Extension Arm (C) to the upper pivot holes in the Pole Mounting Channel (E), use
the 3/4” X 1” Hex Bolt (H), 1 1/2” Thin Washers (AJ) and 3/4” Jam Lock Nut (I). Tighten
completely and back off 1/2 trn as the bolt is used as a pivot and must move freely. Make sure you
install the upper extension arm wth the crank pivot tubes at the top of the welded assembly.
See Figure 3.
12. Install the eight Backboard Mounting Tabs (N) to the steel frame that is factory installed on the back
of the Backboard (AF). Install one Backboard Mounting Tab Shim (O) at each of the four mounting
locations. Mount the shims on the inside of the steel backboard frame between the tab and the frame.
Use the 3/8” x 2½” Hex Bolts (Z), 3/8” Lock Washers (AA) and 3/8” Hex Nuts (AB). Tighten all
bolts assuring that the pivot holes in the backboard mounting tabs are lined up by placing a 3/4” x 3”
Hex Bolt (AC) through the holes in each pair of tabs prior to tightening. See Figure 4.
13. With the bottom of the backboard frame resting on the temporary support, you are now able to mount the
backboard to the Extension Arms (C) and (D) with the 3/4” X 3” Hex Bolts (AC) and 3/4” Jam Lock
Nuts (I). Once all four bolts are installed, tighten the lock nuts, then loosen 1/4 turn or until the
components will pivot freely. See Figure 3.
14. With the crank eye down, mount the chrome plated end of the inner crank tube to the crank mount tubes
in the upper extension arm with the 3/4 X 13” Hex Bolt (H) and 3/4 Jam Lock Nut (I). Tighten lock nut
then loosen 1/4 turn or turn until the component pivots freely. See Figure 3.
15. Using three to four adults, lift the backboard so the bottom of the board is approximately 6’ from the
playing surface. A wooden 2x4 cut 6’ long will help support the weight while the crank mount is being
completed. Attach the lower crank mount tube on the crank to the crank mount plates using the 5/8” x
5” Hex Bolt (X) and 5/8” Nyloc Nut (Y). Mounting tube on the crank should be on the front side of
the crank closest to the backboard. Tighten the nut, then loosen ¼ turn or until the crank will pivot
freely when being adjusted. See Figure 5
AF
Z
ON
AB
AA
Figure 4 Figure 5
Correct crank (J)
mount location Incorrect
Warning/Notice!
Crank (J) must be installed as shown in figure 5. Improper installation could cause
premature wear and restrict your full 7 1/2’ -10’ range of adjustment.

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16. You should now be able to crank the extension arms up and down freely by placing the Crank Handle
(K) into the crank eye and turning the handle clockwise to lower and counter clockwise to raise. If the
arms do not move freely, loosen binding pivot bolts.
17. Install the Goal (AG) using the hardware provided with the goal. Substitute the 3/8” x 3 1/2” Hex
Bolts (AK) for the bolts provided with the goal. Install net.
18. Install Backboard Padding (AI) if applicable. Follow instructions with padding.
19. Install Pole Padding (AH) if applicable.
20. Assure that the unit operates properly by cranking the unit to its highest level (approximately 10’4”)
and lowest level (approximately 7’3”). If the unit does not move freely, check all pivot points for
binding or over tightening.
21. Install the Height Gauge (L) to the Upper Extension Arm (C) that is on the left side as you face the
backboard. Use one ¼” x 2 ½” Hex Bolt (AD) and ¼” Flange Nut (AE) in the mounting hole closest
to the wall. Slide the Pointer (M) onto the other ¼” x 2 ½” hex bolt and install one ¼” flange nut
(with the flange opposite the pointer) against the pointer with just enough clearance to let the pointer
rotate freely on the bolt. Pass this assembly through the remaining hole in the height gauge and
extension tube and install the final ¼” flange nut. You must tighten the two flange nuts toward each
other to lock this assembly in place. The pointer must rotate freely on the ¼” hex bolt once installed
to accurately indicate your system height. See Figure 6.
L
E
C
M
AD
AE
Figure 6