Operation Manual

19
WARNING!
All following operations must be done by profesionally skilled personnel.
 Once a month check the compressor efficiency:
o possible connectors slackening
o pressure hose wear
o screws tightening
o electric circuit efficiency
 Every 3 months check the air intake filter. Replace if necessary.
 Every 6 months disassemble the coelescing cartridge contained in the air
outlet filter (Fig. 6). This operation must be done with the tank completely out
of pression.
8. TROUBLESHOOTING
WARNING!
 Before carrying out any operation on the compressor, disconnect the
plug from the socket.
 Empty all the air from the air tank before dismantling any part of
compressor unit’s pressure system.
 Following operations must be carried out by professionally skilled
personnel.
1. The compressor does not start:
a) no power from mains. Check fuses and socket.
b) breakage of loose joints in electrical connections. Check with tester for
continuity as per wiring diagram (see page 16).
c) due to a wrong filling up, the oil level is too high. On this condition, the motor
cannot start. It is so necessary to disassemble the oil sight glass, to let the
exceeding oil come out from the hole, to assemble again in a correct way the
oil sight glass and to restore the correct oil level.
d) pressure in air tank too high for activation of pressure switch. The pressure
switch makes circuit only when pressure has dropped to preset start
pressure.
e) leaky non-return valve. Take off the flexible pressure pipe to see if air leaks
out from the valve. If so, unscrew the valve cap (Fig. 7 ref. 1), clean the
rubber disk (Fig. 7 ref. 2) and his place with a dry cloth and assemble the
whole with care. If the leakage persists, the whole valve must be replaced.