AMF GRIPPER BALL RETURN Nstallation Instructions

GRIPPER BALL RETURN KIT INSTALLATION INSTRUCTIONS

The Gripper Ball Return Kit was designed to
significantly improve the performance of the
Positive Ball Lift (PBL) with today's heavily
oiled lanes. The kit consists of a new ball lift
belt, an adjustable tension bracket, upper and
lower rail covers, thimbles, and mounting
hardware. The materials in the rail covers,
belt, and thimbles are specially formulated for
long-lasting, reliable operation regardless of
the amount of oil on the lanes.
Many bowling center mechanics have
adjusted, shimmed, or otherwise modified
their ball lifts in an effort to minimize "yo-yoing"
and slippage problems created by today's
heavy oil conditions. It is very important that
all such modifications be removed prior to
installing the Gripper Ball Return Kit, and
that the ball lift is adjusted in accordance
with these instructions. Failure to do so
can result in less than optimal
performance.
1. Remove the PBL assembly in accordance with the instructions in your Pinspotter
Manual.
2. Remove the tension from the ball lift belt.
3. Remove the shafts from the upper and lower tensioner support brackets (if
necessary, use a non-marring mallet), and then remove the belt.
4. Remove the upper support bracket by drilling out the rivets on each side of the
bracket using a 1/4-inch drill bit. An alternate method is to use a chisel to knock off
the rivets.
5. Install the new upper tensioner bracket using 1/4-20 x 2-1/4-inch screws, washers,
and lock nuts. Use washers between the bracket and the head of the screw as well
as between the bracket and the lock nut. Place the bracket in its lowest position
(see Figure 2) making sure that the bracket is square and aligned with the other
components on the PBL, and tighten the screws.
400-090-007
REMOVE POWER FROM THE PINSPOTTERS BEFORE
STARTING THIS PROCEDURE.
Rev. A
Upper Tension Bracket
Lower Tension
Bracket
Figure 1, PBL with Gripper Kit Installed
Upper Rails:
neoprene rubber
1