500 E Global Operating Instructions
Initial operation
5
Fan "ON".
Compressor "ON".
Pulsator "ON".
Check the turning direction of the filter and compressor motor.
The correct turning direction is indicated by the arrow on the fan
motor.
2 Initial operation of the blast cleaning machine
Check that the shot valve is closed (abrasive shot valve handle
downwards, see fig. 5.1).
Check that the emergency shutdown switch is not actuated.
Switch the main switch of the machine to "ON". The control
lamp “Power“ on the control box lights up.
Press the push button "Drive ON".
Press the push button "Fan ON".
Press the push button “Main blast ON”. The blast wheel motor
is started.
Observe the ammeter in order to check the power consumption
of the blast wheel motor. The motor requires a lot of power
(starting current) when it is started until it reaches its maximum
speed.
Once the blast wheel has reached its rated speed the current
drops to approx. 10 A no-load consumption.
If the ammeter indicates more than the normal current value after
10 seconds, interrupt the power supply and find the cause.
If the ammeter indicates a high load consumption after having
reached the idle-running speed, the shot valve may be partially
open or there may be another disturbance.
Find out the cause of the disturbance and, if necessary, contact
your Blastrac BV customer service engineer.
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