Nilfisk-ALTO POSEIDON 7-52 Operating Instructions Manual page 5

Operation
Do not damage the mains power
lead (e.g. by driving over it,
pulling or crushing it).
Remove the plug from the plug
socket directly at the plug (not by
pulling or tearing at
the mains power lead).
Maintenace and repair
CAUTION!
Always remove the plug from
the mains plug socket before
cleaning or carrying out main-
tenance work on the cleaner.
Carry out only the maintenance
operations described in the ope-
rating instructions.
Use only original Alto spare parts.
Do not make any technical modi-
fi cations to the
high-pressure cleaner.
CAUTION!
High-pressure hoses, fi ttings and
couplings are important for the
safety of the cleaner. Use only
high-pressure parts approved by
the manufacturer!
CAUTION!
Failure to observe these instruc-
tions can endanger your safety.
Please contact the Alto service
department or an authorised
specialist work-shop for all other
maintenance or repair work!
Electrical equipment
Check the rated voltage of the
high-pressure cleaner before
connecting it to the mains power
supply. Ensure that the voltage
specifi ed on the rating plate
corresponds to the local mains
supply voltage.
Cleaners intended for commer-
cial use must be equipped with
a mains power lead type H 07
26
RN-F by a qualifi ed electrician.
The mains power lead must not
differ from the version specifi ed
by the manufacturer and may
only be changed by an electri-
cian.
If your 3-phase cleaner was sup-
plied without a plug, have it fi tted
with a suitable 3-phase plug with
protective conductor contact by
an electrician.
The mains power lead must not
differ from that specifi ed by the
manufacturer.
We strongly recommend that the
power supply to the high-pres-
sure cleaner be connected via a
residual-current circuit breaker
which interrupts the power supply
either if the leakage current to
earth exceeds 30 mA for 30 ms
or which contains an earth testing
circuit.
If an extension lead is used, plea-
se observe the minimum cross-
section of the lead:
Lead length
section
m mm
bis 20 1.5
20 bis 50 2.5
If an extension lead is used,
all live parts (plug, cable, plug
socket) must be located so that
the protection class „watertight" is
ensured. This can also be achie-
ved by protecting the lead.
CAUTION!
Unsuitable extension leads can
represent a source of danger.
CAUTION!
Never spray electrical equipment
with water:
Danger for persons, danger of
short-circuit!
The cleaner may only be connec-
ted to a correctly installed plug
socket.
Testing
The cleaner conforms to the
„Guidelines for Liquid Spray Jet
Devices". The high-
pressure cleaner must be sub-
jected to a safety examination in
accordance with the
„Accident Prevention Regulations
for Working with Liquid Spray Jet
Devices" as required, but at least
every 12 months, by an autho-
rised inspector.
After all repairs or modifi cations
to electrical equipment, the pro-
tective conductor
resistance, the insulation resi-
stance and the leakage current
must be measured.
Furthermore, a visual inspection
of the mains power lead, a volta-
ge and current measurement and
a function test must be carried
out. Our after-sales service
technicians are at your disposal
as authorised inspectors.
The complete „Accident Pre-
vention Regulations for Working
with Liquid Spray Jet Devices"
are available from the Carl
Heymanns Verlag KG, Luxem-
burger Strasse
449, 50939 Cologne or from the
appropriate association of em-
Cross ployers' liability insurances.
2
Safety device
Unacceptably high pressure is
fed back without residual pres-
sure via a bypass line into the
intake line of the pump when the
safety device is tripped. The safe-
ty device is set and sealed at the
factory and must not be adjusted.