Attach parallel linkages ( C ) to vertical post with ½" x 10" hex bolt (H) and
½" locknut (J). Attention: It does not matter which end of the parallel link
you attach to the vertical post.
Caution: Injury may occur if linkages are allowed to fall off main arm during
assembly. Be sure to smear lubricant on bolt shaft.
Next, assemble the H-Frame backboard mounting (D) to the backboard as
shown in fi gure D. Use the (8)
5
/
16
"
x 1" machine screws (O), (8)
5
/
16
"
fl at-
washer (P), (8)
5
/
16
"
lockwasher (Q), (8)
5
/
16
"
hex nuts ( R ). If your back-
board is tempered glass check to make sure all four steel grommets are
located at the rim holes, if any are missing check in the box. If grommets
are missing and cannot be located, DO NOT proceed with assembly, call
Draper immediately. If your backboard is acrylic you must remove and
discard the plastic shipping block from the backboard joint to complete this
step. Additionally, if you purchased an acrylic backboard you should have
received two rubber gaskets enclosed with the backboard. Place one
gasket between the H-Frame backboard mount and the backside of the
backboard. You will use the other gasket later during assembly. Rubber
gaskets are necessary for acrylic boards only.
Mount the H-Frame/Backboard assembly lower pivot tube fi rst to the main
arm using (1) ½" x 11" hex bolt (I) and (1) ½" locknut (J). Next, attach the
upper H-Frame pivot tube to the upper parallel linkages using (1) ½" x 10"
506992 "Force" Adjustable Outdoor Backstop by Draper
Page 2 of 2
www
.draperinc.com
(765) 9
8
7-7999
5
/
8
" Hex Nut
Anchor Template
J-Bolt
Centerline of
J-Bolts
These distances must be equal
Edge of playing surface
5
/
16
" x 1" Machine Screws, etc.
H-Frame Backboard Mount
hex bolt (H) and (1) ½" locknut (J). Be sure to smear lubricant on both bolt
shafts!!!
Check face of backboard to see if it is level forward and back. If it is out of
level, correct it by adjusting the
5
/
8
"
nuts located underneath the vertical
post base plate.
Mount the rim to the H-Frame/Backboard assembly using the hardware
supplied in the rim box. If you purchased an acrylic backboard make sure
to place the second rubber gasket (included with backboard) between the
face of the backboard and the backplate of the rim. Trim gasket if neces-
sary. Use level to make sure rim is level side to side before tightening nuts.
After everything is square, make sure all nuts have been tightened. How-
ever, do not overtighten; if unit is diffi cult to crank up and down the main
pivot nuts are probably too tight.
To apply the rim height sticker (S), fi rst use a tape measure to crank rim
up to exactly 10' from the playing surface. Use a pencil to make a mark on
the spring-assist outer tube where the rim height indicator stops. Then,
peel and apply sticker to outside of spring-assist cartridge lining up the
pencil mark with the 10' mark on the sticker. See Figure A (below) for a
diagram of a completed height indicator assembly.
Note:
It is advisable to wait up to two weeks to allow the anchor footing to fully
cure before aggressive play.
Figure A
Figure B
Figure C
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