Zionair SB19A, Инструкция по сборке и эксплуатации

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4. You can also choose to use a bigger or smaller size nozzle. A bigger size nozzle gets the job
done faster because it can blast a larger surface, this also causes a higher air consumption,
make sure the compressor can handle it.
Operation
1. Keep the blasting gun at an angle of 45-60° towards the work piece at a distance of 10-15cm
with the nozzle pointing towards the backside of the cabinet. Never hold the gun in a 90°
toward the work piece, this causes the grit to rebound back into the spray, which causes a
less effective spray. This also causes extra wear to the gun and viewing glass.
2. The blasting gun should always point away from the operator towards the work piece.
3. It is strongly forbidden to start sandblasting when the cabinet is not fully closed (open
door/cover) or when the dust extractor and or light is not on.
4. Before placing/removing a work piece , make sure to turn off the compressed air supply by
closing the air valve.
5. Maintenance
WARNING! Before performing maintenance, remove the plug form the power source, failure to
heed this instruction may cause electrocution. Close the valve of the compressed air supply.
Check before each use
Check the sandblasting cabinet previous to each use for damaged and/or deformed parts. Check all
hoses for wear and tear and check if the nozzle is not too worn. Check if the dust extractor works
well, clean it if necessary, finally also check if the doors/covers still close properly. In case of a
malfunction/defect, do not use the sandblasting cabinet until it has been repaired.
Possible problems and causes
1. Check the nozzle every 10-12 hours, in case it is worn unevenly, turn it ¼ stroke every 10
hours.
2. In case the grit is clotting, this means there is moisture in the compressed air or there is
moisture/oil in the system. This leads to clogging and an uneven spray. Always place an air
unit/air dryer in the system. It could also be that there is too much debris in the grit, this can
be solved by filtering/replacing the grit.
3. When the spray is often disrupted, place a thumb (WITH GLOVES ON) over the nozzle and
(press firmly) and depress the foot pedal for a few seconds. Now the air blows back into the
suction hose, which can dissolve possible obstructions.
4. Regularly check for leakages/obstructions in the compressed air supply. Adjust the pressure
to 5.5 bar on the air regulator, now press the foot pedal and check for sudden pressure drop.
If this is the case it means the compressed air supply is obstructed, this can be caused by:
-
Diameter of air hose too small
- Blocked coupler/pressure regulator
- Blocked/kinked hose
- Distance between compressed air supply and sandblasting cabinet is too big
ADVICE: The diameter of the air hose should be at least ½“.