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Service manual VA500-VA750 ed.1 ver.5.05 [MANU360.SA0].doc
pag.15 - 18/10/2005
REPLACING THE DRYER FILTERS
Replace the filters whenever the machine gives
the service alarm during the first ten seconds of
operation or whenever the humidity gage signals
the presence of humidity in the circuit (inner circle
yellow). Before performing any operation, check
that the replacement filters are the same types as
those installed on the machine. Then proceed as
described below:
1) Disconnect the machine from the electrical
supply
2)
Wear protective gloves and glasses
3) Remove the rear plastic cover from the
machine.
4) Close the taps on the bottle.
5) Close the tap (1) on the filter (4)
6) Connect the low pressure quick-connect
coupling to the male connector (2) of the
filter (4)
7) Connect the machine to the electrical
supply
8) Carry out a recovery operation (note: the
low pressure tap should be open)
9) When zero bar is reached,
immediately
close the tap (3) on the filter (5) and press
Stop or Reset
10) Disconnect the machine from the electrical supply
11) Disconnect the low pressure quick-connect coupling from the connector (2) on the filter
(4)
12) Dismantle the old filters and mount new ones, carefully noting the direction of the
arrows.
IMPORTANT: replace the old filter with a new one as quickly as possible to avoid
possible contamination by moisture in the ambient air.
13) Open the tap (1) under the filter (4) and the tap (3) on the filter (5)
14) Open the taps on the bottle
15) Replace the rear plastic cover on the machine
16) Reconnect to the electrical supply and switch the machine on.
17) Select NEXT MENU, and enter into SERVICE ALARM.
18) Key in the filter code to cancel the alarm; if the filter code is not available, telephone the
Service Center.
19) Recover around 500g of gas to charge the machine circuit.
20) Switch off the machine
21) Disconnect the machine from the electrical supply
FILLING THE NEW OIL TANK
It is good practice to fill the oil tank whenever the oil level falls below 100 cc in order to
guarantee that there will be sufficient oil for topping up during successive operations. Types of
1
2
3
4
5
