Ball Return Installation Manual
mm) clearance holes through the shims and 2 x 6 boards
using the base plate mounting holes as a guide.
mm) holes in the concrete subfloor to a depth that is at least
mm) deeper than the estimated screwbolt embedment using the
previously drilled clearance holes as a guide. Clean out loose material from the
the subfloor using four 8
inch o.d. flat washers (948
inch o.d. flat washers (945
242). Apply moderate downward pressure to the screwbolts and
Ball Lift Mounting Requirements
Secure the adapter plate to the Ball Lift base plate studs using four 11/32 washers
18 nylon insert lock nuts (839
t is critical for the smooth transition of the ball to the Lift. Adjust the
track as necessary to ensure that the track is centered between the Ball Lift side
plates. Shim the adapter plate as needed to obtain a smooth, level track joint.