2-22
Section 2: Overview
Ball Accelerator
Mounted between the two pinsetters of a lane pair is a ball accelerator that returns balls to the bowler
from either lane. The ball enters the accelerator from the pit carpet through a ball door. A large flat belt
mounted on two drums grips the ball and propels it forward to the ball lift. Refer to
Figure 2-22
. Power
to run the belt is furnished by a three phase motor incorporated into the rear drum.
(4)
BALL TRACK
RODS
(1)
TENSION
BAR
(3)
FLAT BELT
TENSIONER NUTS
(5)
REAR DRUM
AND MOTOR
(6)
BALL DOOR
ASSEMBLY
(7)
ACCELERATOR
BELT
(2)
FRONT
DRUM
Figure 2-22. Ball Accelerator
(1) TENSION BAR
(2) FRONT DRUM
(3) FLAT BELT TENSION NUTS
(4) BALL TRACK RODS
(5) REAR DRUM AND MOTOR (6) BALL DOOR ASSEMBLY
(7) ACCELERATOR BELT
Summary of Contents for StringPin
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