Metalworks CAT020RA Manual De Instrucciones página 13

CAT020RA - NLFRENES - v1.0 - 30082013
EN
Maintenance
• You should make every effort to protect your air compressor from any damage it may receive from your
sandblasting work. Your best option is to keep the compressor in a room separate from the sandblaster,
using a long hose to provide the pressure needed to do your work. A second choice is to keep the
compressor up wind from the sandblasting, and the greater the distance between them, the better. Other
than that, you should continue standard maintenance procedures for the compressor.
• Some parts of the sandblaster will wear much more rapidly than others. The parts needing close attention
carry the air/abrasive mixture, starting with the sand hose (25), and going through the metal fittings, to
the gun.
• If air leaks develop in any of these parts, you should stop all work, and find what needs to be repaired or
replaced. When it's new, the sand hose (25) has 2 cord piles and the walls are 1/4" thick. As the interior
diameter is sandblasted, this wall becomes thinner and thinner. One way to inspect the hose and other
parts affected by the blasting is to put on your protective clothing. Then pressurize the system and close
the nozzle shut off gun. Close your hand loosely around the hose and run it up and down the hose across
the fittings and nozzles. You'll be able to feel any leaks. You can also spot places in the hose where the
wall is getting very thin. These show up as blisters in the hose. If you find such a blister, get a new hose
immediately. If that blister breaks, the abrasive will come out of till side of the hose at 4,5 bar or more.
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