FIG. 12
WARNING:
WHEN BLASTING CONCRETE, THE ABRASIVE FEED VALVE MUST
ONLY BE OPENED WHEN THE MACHINE IS IN FORWARD MOTION. IF THE
MACHINE IS AT A STANDSTILL AND THE VALVE IS OPENED, DEEP GROOVES
WILL BE BLASTED INTO THE CONCRETE SURFACE WITHIN SECONDS.
WARNING:
WHEN THE BLAST HEAD IS LIFTED FROM THE FLOOR, ABRASIVE
WILL SPURT OUT OF THE SIDES OF THE BLAST HEAD AT HIGH SPEED. IF THE
MACHINE IS MOVEDTHE BLAST HEAD RAISED, THE ABRASIVE FEED VALVE
MUST BE FULLY CLOSED.
Operation
START-UP PROCEDURE (FIGURE 12)
1.
Turn on dust collector (see dust collector manual).
2.
Check that the magnetic valve is closed. Push the green “Control Power” button.
3.
Set the potentiometer in a low speed setting (2-3). Push the green “Blast Wheel”
button.
4.
Pull the comb lever up about 1/4” (6 mm). The machine will start moving forward.
5.
After the machine starts to move forward, pull the comb lever further upwards in
order to open the abrasive control valve and begin blasting the surface.
6.
Watch the Amp meter to control the load of the wheel motor. During start-up, the
motor will need its starting current until max. speed of the motor is reached. Ensure
it does not exceed the max. load.
TURNING OFF THE MACHINE (FIGURE 13)
1.
Close the abrasive feed valve by lowering the comb lever while the machine is still
moving forwards.
2.
Release the comb lever so that it swings back into its previous position. The trac
-
tion drive will switch off and the machine will stop.
3.
Press the red “Control Power” button.
4.
Turn off the dust collector (see dust collector manual).
RECOMMENDED BLAST PATHS
Carry out blast operation in parallel tracks in a manner that prevents the dust hose and
electric cable from becoming twisted. Figure 13 shows the recommended blast path lead
-
ing away from the filter.
1.
Position the filter unit near a power source.
2.
Place the machine near the filter unit and spread out the hose (Figure 13).
3.
Connect the machine and filter with the dust hose.
4.
Check the setting of the outlet damper on the filter.
5.
Work the machine with the hose spread out in the opposite direction, repeating
the process away from the filter unit. Watch the maximum length of cable and dust
hose during operation.
11
CAUTION:
THE DUSTBIN OF THE DUST COLLECTOR NEEDS TO BE EMPTIED
REGULARLY. DO NOT OVERFILL THE BIN TO AVOID DUST EXPOSURE WHEN
OPENING. COMPLY WITH THE LOCAL WASTE TREATMENT REGULATIONS
REGARDING THE REMOVED MATERIAL.
FIG. 13
