EN | 29 | AIR-NEX 9350/9450 Maintenance
© MAHLE
LONG LIFE PUMP® procedure has to be
started only after checking and, if
necessary, topping up the pump oil level
and lasts 1 hour: during this time the tool
cannot be used.
During the procedure the oil is
automatically purified from the gaseous
polluting residues absorbed during the
emptying operations of vehicles air
conditioning systems.
At the end of the LONG LIFE PUMP®
procedure,
•
in case of negative result or
•
after 1000 hours of vacuum
pump operation since the last oil
change, the LONG LIFE PUMP®
procedure cannot be activated
anymore
It is necessary to replace the vacuum
pump oil.
13.7
Pump oil change
Required tools:
•
1 flat screwdriver
•
1 Hex key (10 mm)
For replacement, comply with the
instructions outlined below:
1.
Disconnect the unit from the
mains.
2.
Remove the six screws that fix
the front door of the unit and
remove it.
3.
Place a bowl underneath the
machine, right under the pump
oil drain hole. Open the upper
plug and then the lower plug to
drain the used oil contained
within the vacuum pump.
4.
Once the pump has been
emptied, screw the lower plug
again.
5.
Fill the pump with new oil
through the upper opening,
using a funnel if needed. Bring
new oil level halfway through
the oil inspection window.
6.
Once the pump has been filled,
close the upper plug.
Once oil has been replaced, switch on the
unit and from the MAINTENANCE menu
select PUMP OIL CHANGE: press OK to
reset the counter.
13.8
Dryer filter change
The dryer filter must be replaced after
having dehydrated 150 kg of refrigerant
fluid, since the filter capacity to keep the
humidity present in the refrigerant will run
out.
To replace the dryer filter, from the
MAINTENANCE menu select DRYER
FILTER REPLACEMENT: press “START”
to set the counter to zero and to start the
filter replacement procedure. Insert the
code of the new filter. Now you can
replace the filter.
Required tools:
Oil inspection
window
Upper filling plug
Lower
drain plug
Oil
Summary of Contents for AIR-NEX 9350
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