Weekly Maintenance - Electrolux FIT2B Installations-, Wartungs-, Und Bedienungsanleitung

E N G L I S H
MAINTENANCE
The following instructions
importance in keeping the machine perfectly
efficient, ensuring its maximum performance,
and avoiding expensive down time.
The first part of this section is divided into
chapters according to periodic maintenance
schedules.
N.B.: the frequency indicated (weekly, monthly,
etc.) is indicative and refers to a machine that
operates under 'normal' conditions.
The individual customer has to decide on the
exact frequency of the maintenance work on the
basis of the following guidelines:
• The amount of work done by the machine;
• The hardness of the water, which causes a
greater or lesser scaling of the boiler heating
element;
• The amount of dust in the air;
• Other local working conditions.
All the maintenance
undertaken with the
switched off, and in particular:
a) The general electrical power switch must
be off and the plug removed from the
socket;
b) The water supply ball valve "POS. 66" (see
drawing page 10-3) must be closed. The
boiler drainage
drawing page 10-3) must be closed;
c) The compressed air ball valve "POS. 25"
must be closed and all the compressed air
in the machine must be discharged.
d) The hot parts of the machine must be left to
cool (internal pipes, valves, the boiler, if
fitted, etc.) in order to avoid burns.
Only by observing all these precautions, and the
particular conditions relating to the individual
maintenance jobs, is it possible to carry out
maintenance work
complete safety. Remember 'you can never by
too careful'!
In order to make potential dangers more evident,
adhesive symbols have been applied to critical
parts of the machine: the meaning of these
symbols is explained in detail in the red section
at the beginning of this manual (Precautions for
the Safety of Operators and Property).
are of prime
operations must
machine completely
valve "POS. 17"
on the machine
C H A P T E R 4
N.B. In any case, the maintenance work must
be undertaken only by competent personnel
who can take personal responsibility for their
own safety and that of other persons, animals
and property. The law, and in particular the
latest EU Directives, severely punish the
owner of a machine who allows maintenance
work to be carried out by non-qualified
personnel

WEEKLY MAINTENANCE

a) Boiler safety valves: check carefully its
correct working and that it does not vent
steam. In the case of a malfunction, replace
the whole safety valve: request the services
of a competent technician
b) Also check the correct functioning of the
gauge, pressure gauge and pump.
SIX MONTHLY / YEARLY
be
a) Check the various gaskets and gate valves
as continuous heating and cooling can cause
leaks. Should there be leaks, remove the
gaskets and gate valves and replace with
new to prevent further leaks.
b) Clean the screen of the filter on the feeding
valve: disassemble the rubber hose, remove
the filter inside the solenoid valve and clean it
(see
with a compressed air blow.
c) Carefully clean the heating elements of any
scaling. This is of a great importance for the
performance of the boiler, and it is easy to do.
Simply remove the flange with the heating
elements and carefully clean them. During
this operation it is important to disconnect the
copper tube that connects the pump to the
boiler, and clean the joint, where the water
enters into the boiler, of any deposits that
may be obstructing it.
d) Remove the probe and carefully clean it of
with
any sediment or scaling using an emery
cloth. Assuring that the spindle/electrode
doesn't revolve in the sonde support body,
otherwise tighten the superior nut.
e) Disassemble the small copper pipes that
connect the pressure control switch and the
pressure gauge and clean them internally to
remove any scaling.
Page 4-5
MAINTENANCE
E N G L I S H