6-6
“Oil-Less” Scroll Laboratory Air
4107 9006 25.11
Cleaning and/or substitution of the
fi
lter:
Unscrew the cap by means of a 17 mm
wrench.
Clean the
fi
lter, if necessary, replace it.
First replace the cleaned
fi
lter back in
its seat on the cap.
Screw in the lockable cap with the
fi
lter paying attention to not damage
the plastic threading of the valve body.
Replace worn out components, subject
to wear and tear, and clean the
condensate drain:
Open the condensate drain,
unscrewing the 4 M6x25 screws (pos.
12) as well as the M3x10 screws (pos.
13) and remove the valve assembly
(pos. 11).
Unscrew the
fi
lter cap (pos. 04) and
extract the double mesh metallic
fi
lter
(pos. 06).
Remove the O-Ring gasket of the
fi
lter
cap (pos. 05), O-Ring gasket of the
valve assembly (pos. 07), the solenoid
valve spring (pos. 08), the solenoid
valve pilot (pos. 09) and the diaphragm
(pos. 10).
Clean the internal housing of the valve
assembly and the aluminum tank.
If necessary, clean the level sensor
rod and its
fl
oat, paying however
particular attention to not damage it.
Do not bend it and do not use it as a
lever. It contains electronic material.
Mechanical stresses, including moderate
ones, can give rise to irreparable
malfunctions.
Insert the new O-Ring of the
fi
lter cap,
place the new
fi
lter on the cap and
close on the valve assembly paying
attention to correctly screw it.
Insert the new valve assembly O-Ring.
Insert the valve components in the
following order: spring and pilot in its
spool,
fi
rst insert the spring (insert the
side without plastic of the pilot inside
the spring) and lastly the diaphragm
with its plastic guide. Ensure that
diaphragm is correctly positioned.
Screw the valve assembly onto the
condensate drain, tightening the 8
screws present with the following
tightening torque values: M6 = 8 Nm
+2/-1 Nm, M3 = 0,4 Nm ±15%.
Replace the
fl
ow limiter (pos. 14) and
fl
ow limiter plastic ring (pos. 15).
The container chamber of the
electronic board is sealed with a sealing
gasket and must not be opened. All
of the required connections can be
accessed from the outside by electrical
connectors.
Maintenance kit:
Drain maintenance kit (Kit_001)
includes:
(1) Filter
cap
(1) Filter cap O-Ring
(1) Double mesh metallic
fi
lter
(1) Valve assembly O-Ring
(1) Solenoid valve spring
(1) Solenoid valve pilot
(1) Diaphragm
(1) Flow
limiter
(1) Flow limiter plastic ring
NOTE
:
See exploded view in this section for
components corresponding to pos. #’s.
