MACHINES AND
ACCESSORIES
Page 23 of 28
11 MAINTENANCE
11.1Routine maintenance
Maintenance
Whenever maintenance is carried out or parts are replaced:
Remove the plug from the mains socket;
Disconnect the compressed air tube.
To ensure the safe operation of the sandblaster it is necessary to perform a series of control
and maintenance operations.
In particular:
1. Regularly clean the suction tube and the filter.
2. Regularly check the parts that are subject to wear (nozzles).
3. Check the abrasive. The micro-spheres lose their abrasive power and mix with the
machining dust, filter or replace it as required.
4. In the tubes and in the abrasive there must be no condensation or moisture.
5. Regularly check that the seals are intact.
6. Do not use the sandblaster with pressures above 8.5 bar.
7. Use an abrasive that is refined and free from dust.
The entire blasting system is subjected to wear and tear, as highly abrasive materials are
used.
Therefore, it is important to perform the maintenance operations.
Use of PPE
When performing maintenance work or the replacement of parts it is necessary to wear
specific PPE for workplace safety.
O
BSTRUCTIONS
The gun nozzle may be obstructed by impurities that are found in the abrasive. Try to remove
the obstruction by inserting a pointed object.
If the tube which sucks the abrasive appears closed, cover the outlet of the gun and let the
air flow through the obstructed tube. Dust can fly upwards when this is done, so make sure
the tube is inserted in the sand and the lid is closed.
E
XCESSIVE AMOUNTS OF DUST
This occurs if:
The abrasive material is inefficient, i.e., it has lost its abrasive powers (rounding of the
grains) or it is mixed with particles that detach from the work pieces. Replace the
abrasive.
The air outlet is obstructed or the air flow is blocked. Cleaning the hole, will reduce the
dust discharged by the gun
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