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© Steltronic – Brunswick a or a-2
BRUNSWICK A OR A-2
If the sensors are relocated to
an area that is behind the rake,
you will need to install a mercury
switch to disable the sensors
when the rake is sweeping pins.
If your bowling center has
Brunswick A or A-2 pinsetters, an
additional mercury switch needs
to be installed on the rake shaft.
The main purpose of this
mercury switch is to send a
signal to the infrared sensor to
be disabled when the pinsetter
rake/sweep would sweep the
deadwood.
Therefore we need to disable
the sensor when the rake/sweep
passes and breaks the beam of
the sensor.
When installing the mercury switch, the pinsetter needs to be at ZERO degrees with the rake in the upward position.
The mercury switch should be installed with the wires pointed forward in the direction of the bowlers at the approach.
When the rake is UP, install the u-bolt clamp on the rake shaft, so that you have an open continuity on the two wires of
the mercury switch. When the rake is down, there should be a contact closure between the two mercury switch wires.
Mercury switch installed with rake UP and pinsetter
at zero degrees.
Mercury switch installed with rake DOWN and
pinsetter at zero degrees.
