TIGIEFFE AIRO A Series, Use And Maintenance Manual

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Use and Maintenance Manual – A16 J A18 J Series Page 70
7.2.4. Hydraulic filter replacement
7.2.4.1. Suction filters
All models are equipped with a suction filter installed
inside the tank at the base of the suction tube, which has
to be replaced at least every two years.
To replace the suction filters installed inside the tank (see
figure):
▪
Stop the machine by pressing the emergency
stop button of the ground control unit.
▪ Unscrew the tank cover where the metal suction
tubes are installed;
▪ Extract the cover from the tank;
▪ Unscrew filter from the suction tube and replace.
▪
To restore the initial condition, carry out the
above-mentioned operation in reverse order.
Fig. 21
During these operations a quantity of oil may leak out. In this case remove the oil by means of cloths and by pouring it into a
specific container.
7.2.4.2. Return filter
The return filter directly flanged on the tank is equipped with a
visual clogging indicator. During normal operation, the visual
indicator is in the green zone. When the indicator is in the red
zone, the filtering cartridge is to be replaced.
However, the filtering cartridge should be replaced at least every
two years. To replace the filtering cartridge:
▪
Stop the machine by pressing the emergency stop
button on the ground control unit.
▪
Remove the filter cover.
▪ Remove the cartridge.
▪ Fit the new cartridge paying attention to the correct
position of the retaining spring and place the cover
again.
During these operations a quantity of oil may leak out. In this
case remove the oil by means of cloths and by pouring it into a
specific container.
Fig.22
IT IS FORBIDDEN to start the machine when the filter cover is missing or not properly tightened.
Replace the filters using only original accessories available at our Technical Support.
Do not re-use used oil and do not leave it in the environment, but dispose of in compliance with local standards in
force.
Once the filters have been replaced, check the hydraulic oil level in the tank.