its standard legs the BOLA delivers a ball from about 2.3 metres
(1.6 metres for baseball). Extra sets of legs are available if different
heights are required.
Before operating your BOLA a stable platform of approximately 75cm
in height is required on which the coach can stand to feed and operate
the machine safety.
Protective helmets and padding must be worn by the operator and
A bucket for the balls is also recommended which can be hung on
the hook on the tripod head.POWER PACK
(Optional on all models)
OPTIONAL ON ALL MODELS
BOLA will operate from any 12V DC source. To enable operation
from 240V* AC outlets you will need the BOLA power pack. The power
pack is a transformer with a smoothed DC Output. Also built into
the power pack is a battery charging circuit, which will recharge
and 12V lead/acid battery.
To use the machine from a 240V* AC power source, plug the BOLA
power pack into the mains outlet and connect to the machine. The
power pack will become warm in use, but this is normal - the aluminium
box is designed to sink heat away from the components inside.
If for any reason the power pack appears not to
function, check the 5A fuse in the power pack and the fuse in the
3 din mains plug (UK only).
To recharge your 12V battery with the BOLA battery/machine
cable attached, plug the grey battery plug into the grey outlet
socket (with the power pack plugged into the mains). While the battery
is taking charge the green light on the power pack will come on.
Under no circumstances should the battery cable be plugged into
the power pack whilst it is not connected to a battery, as this
risks short-circuiting the two terminals, which will blow the power
Your battery will be sufficiently recharged after 8-12 hours to
be used again, but a full charge may take up to 36 hours. The battery
should not be left charging for longer periods without regularly
checking the voltage (max. 15V). If your battery continues to take
a charge after extended periods of charging, please contact your
local battery supplier.
*Or 110V if specified on order.
RECOMMENDED BATTERY -
BOLA SEALED 12V LEISURE BATTERY
It is recommended that, whilst it is possible to use the machine
from the mains electricity supply, you use the machine from a 12V
battery as this greatly increases portability and eliminates any
risks associated with using mains powered equipment in a damp environment.
BOLA will run from any 12V battery (car batteries etc.) although
we strongly recommended the use of a deep cycle or traction battery
rated at 60-100 amp/hrs. These batteries are designed to cope with
prolonged discharge and recharge cycling, and are available for
the caravan and marine markets. They are often described as leisure
If the BOLA circuitry appears to become unstable after prolonged
use on the battery, we suggest that the battery voltage is checked
or the battery recharged. The machine is designed to run on a minimum
of 11V (flat battery), but below this voltage the circuitry will
Important: Never leave a lead acid battery in a flat or discharged
condition! Your battery should be recharged as soon as possible
All BOLA models have a microprocessor for its speed control
functions. Adjustments can be made by the operator via membrane
switches. The panel is fairly self-explanatory. Ball speed is displayed
in miles per hour in the Speed window and the amount
of swing or spin in the Bias window. Two Tricolour LEDs
light and change colour giving further indication of bias and the
expected effect. A green Ready LED comes on once the
machine has achieved your selected speed and bias settings.