It should be noted that the machine will try to attain the settings that you select regardless of whether it is within its capability. Increased amounts of bias will reduce the maximum attainable speed. The top speed with maximum bias is approximately 55 mph! The ‘Ready’ light will stay out until the machine reaches your selected setting but this should not be for any longer than 30 seconds. After this time, steadily reduce speed or bias until the ‘Ready’ light comes on.

ON

Push the ‘On’ button to switch on the machine. As long as a power source (Power Pack of Battery) is connected to the machine, when the ‘On’ button is pushed the machine will perform a quick self test and set the speed to 30 mph with no bias (swing of spin). In the case of a power interruption (power cut or failure), a trip switch will turn the machine off automatically. It will not restart until the power supply is restored. The red Power LED is lit whenever the machine is switched on.

OFF

The ‘Off’ button switches the machine off and resets all speed and bias (spin or swing) settings.

BALL SPEED

When the machine is switched on, the default speed setting is 30 mph. The speed buttons ( ‘+’ and ‘-’ ) allow you to increase or decrease the speed. The ‘+’ button will increase speed. The ‘-’ button will decrease the speed. Pushing the buttons once briefly will adjust speed up or down in 1 mph increments. Pushing and holding the buttons will continue to adjust the speed up or down as long as the button is held down. The speed ranges from 15 mph to 95 mph (for the ‘Professional’ model). The speed selected is indicated in the ‘Speed’ window. The ‘Ready’ light comes on when the selected speed is reached. Do not put balls into the machine until the ‘Ready’ light has come on.

A secondary effect of adjusting speed is that the length of the delivery changes as well. If you increase the speed you also increase the length of delivery. If you reduce speed, the length shortens. This can be compensated for with the Ball Joint and Vernier adjusters.

BIAS - SWING AND SPIN

When the machine is switched on, the default bias setting is 0 and is displayed in the Bias window. Pressing the bias buttons (‘L’ - left and ‘R’ - right) adjusts the amount of bias between the ball delivery wheel speeds to produce swing and spin (with the delivery head angled). The left button will move and swing the ball to the left (away from the right handed batsman) and with the delivery head angled down to the right produce leg spin.

The right button will move and swing the ball to the right (in to the right handed batsman) and produce off spin with the delivery head angled down to the left. To reduce the amount of bias selected use the opposite button.

There are 9 bias settings available on both the left and right buttons, which are indicated 1 to 9 in the ‘Bias’ window. The Tricolour LEDs above and the bars beside the display give an indication of the expected effect. The 9 settings will give the following effects:There are 9 bias settings available on both the left and right buttons, which are indicated 1 to 9 in the ‘Bias’ window. The Tricolour LEDs above and the bars beside the display give an indication of the expected effect. The 9 settings will give the following effects:

Setting 0 will give a straight delivery. Settings 1 and 2 (Tricolour - green) will give a fairly straight delivery. The small amounts of bias will rotate the ball, stabilise it in flight and thereby improve accuracy a little but will give little discernible swing. Settings 3, 4, 5, 6 and 7 (Tricolour - orange) will give increasing amounts of swing. Settings 8 and 9 (Tricolour - red) are for spin (with the delivery head angled).

The secondary effect of adjusting the bias setting is to change the line of delivery. Pressing the left button will adjust the line to the left. Pressing the right button will adjust the line to the right. These can obviously be compensated for with the ball joint and Vernier adjusters. Bias buttons can also be used for intentional line adjustment. MACHINE FUSE
The replaceable 35A fuse should be checked if BOLA does not operate. The fuse protects the circuitry from abuse or from any internal or external short circuit.

POWER INDICATOR

A red LED indicates whether there is power into the machine. If there is no red light when the machine is plugged in, check the 35a machine fuse and all cable connections and fuses (power pack and mains plug).

AUTOMATIC FEED POWER SOCKET

A power socket (3pin DIN) on the left hand side of the control panel exists for the power output to the BOLA automatic feed, and is not for any other use.