15
5.4
Operation
Carry out blasting in parallel tracks in such way that the dust hose and electric cable do not become twisted.
The next figure shows the recommended blast paths leading away from the dust collector.
Make sure that no vehicles, such as forklifts, trucks and other equipment run over the electric cable and the dust
hose.
The selection of the correct advancing speed of the blast machine is important for a good blast result. In the
case that the surface has different characteristics (e.g. different hardness or different coating thicknesses), a
uniform blast result can be achieved by varying the advancing speed during blast cleaning.
The advancing speed depends on the material of the surface to be blast cleaned and the desired profiling.
The correct advancing speed can be found out by observing the blasted surface and varying the speed during the
blast cleaning process.
Slight profiling on concrete requires a higher speed than coarse profiling (6 - 10).
Blasting on steel requires a very low advancing speed (0 -2).
Check the separator tray every 3 hours for foreign matter and large contaminants.
5.5
Switching off the machine
Close the abrasive valve.
Press the red button “Blast motor OFF”
Switch the main switch to position “OFF”
Pull out the connector of the main power supply of the machine.
Switch off the filter unit.
Wait for standstill of all drives before any inspection or maintenance works are started.
1
Dust collector
2
Dust hose and
electric cable
3
Blast cleaning machine
