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Automatic A/C-Service Unit
15.
Routine maintenance
15.1 M
ATERIAL FOR ROUTINE MAINTENANCE
n°1 filter drier, model XH412
n°1 bottle of oil for vacuum pump, model K1L
n°1 bottle of oil for compressor, model SW32
15.2 P
ERIODIC OPERATIONS
a)
Check all swivel connections for tightening every 10 operations
b)
Check the vacuum pump oil level; the oil must be changed at least every 20 hours of operation
or once every six months even if the unit is not used frequently. The pump must be off when
checking the oil level.
15.3 C
HANGING THE VACUUM PUMP OIL
The oil must be changed every time the alarm message appears on the display.
The oil also needs to be changed whenever it becomes cloudy. Contaminated oil reduces vacuum pump
performances and irreversibly damages its mechanical components.
All draining and refilling operations must be performed when the pump is turned off.
To avoid reduction of the pump efficiency and to maintain its performances, use only K1L oil for
maintenance.
a)
Before draining the oil have the pump run for at least 10 minutes (see 7. "Evacuating and
checking the A/C system for tightness" point g) with hoses connected to the unit
b)
Turn the recovery unit off by turning the 67 switch to position 0 and disconnect the power
cord; strictly observe the sequence of operations.
c)
Remove the rear panel
d)
Remove the drain plug (135) located at the bottom of the pump
e)
Completely drain the oil
f)
Screw the drain plug (135) on again
g)
Remove the filler plug (137) situated on top of the pump
h)
Slowly refill the pump with oil until the level covers half of the sight glass (136) located on the
side of the pump
i)
Screw the filler plug back and remount the rear panel.
Do not pollute environment with oil; it is a special waste and must be disposed of according to the regulations in
force.
Letzte Änderung: 24.06.2009 / Art.Nr.: 2059ENG
WARNING
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