Ball Accelerator - Brunswick StringPin Service Manual

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.
(2)
FRONT
DRUM
(7)
ACCELERATOR
BELT
Figure 2-22. Ball Accelerator
(1) TENSION BAR
(4) BALL TRACK RODS
(7) ACCELERATOR BELT
2-22
(1)
TENSION
BAR
(4)
(5)
BALL TRACK
REAR DRUM
RODS AND MOTOR
(2) FRONT DRUM
(5) REAR DRUM AND MOTOR
(3)
FLAT BELT
TENSIONER NUTS
(3) FLAT BELT TENSION NUTS
(6) BALL DOOR ASSEMBLY
Section 2: Overview
(6)
BALL DOOR
ASSEMBLY