Important; Maintenance; Troubleshooting - Lavorwash NPX XP - SUNDEK 5 - PWH 2.0 Manual Del Usuario

dentally.
> DESCALING (REF. 13)
The descaling procedure must be carried out
periodically with specific products. The inter-
val depends on the hardness of the water. Pour
one litre of product for every 15 litres of water
into a drum containing at least 30 litres of wa-
ter. Disconnect the gun from the high pressure
line and place its free end in the drum, in order
to form a closed circuit, and draw the solution
into the machine for at least 10 minutes. The
delivery end of the line should discharge into a
canvas or mesh bag so that the scale removed
is not returned to the circuit. Then restore the
normal connection and rinse with plenty of
cold water. This operation should be carried
out by our after-sales service, since the descal-
ing product may cause wear of components.
Comply with the regulations in force when dis-
posing of the descaling agent.
>

MAINTENANCE

IMPORTANT: Before doing any work on
the cleaner, discharge the pressure and
disconnect the electricity and water
supplies.
CHECKING THE PUMP OIL LEVEL
Check the oil level periodically. The oil must
be changed for the first time after 50 working
hours, with subsequent changes every 500
hours. SAE 20/30 oil is recommended - Oil ca-
pacity 0,15 Kg
CHECKING THE WATER INTAKE FILTER
Inspect and clean the water intake filter (ref. 11)
on the intake union periodically. This is impor-
tant to prevent fouling which may impair op-
eration of the pump.
REPLACING THE SPRAY ROD NOZZLE
Replace the nozzle when the pressure drops
below the normal values.
ELECTRIC MOTOR
If the motor malfunctions, it cuts out. Wait 5-10
26
77000180-03 man NPX4 12l.indd 26
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minutes before restarting. If the problem per-
sists, refer to the "TROUBLESHOOTING" section.
If you are still unable to eliminate the problem,
stop using the machine and contact an Author-
ized Service Centre.
ELECTRICAL CORD
•
CLEANING THE FUEL FILTER
Check the fuel filter (ref. 12) periodically and
replace if it has deteriorated or is excessively
dirty.
>
See illustrations, page 6.
>
See illustrations, page 6.
>
Before doing any work on the machine, discon-
nect the electricity and water supplies and dis-
charge the pressure. Proceed systematically to
identify faults following the chart below; if you
are still unable to eliminate the problem, call in
the Authorized After-Sales Service.
WARNING: Take care not damage the elec-
tric cable. Have a damaged power cord re-
placed immediately by an authorized serv-
ice point or an electrical specialist.
ELECTRIC DIAGRAM
WATER DIAGRAM

TROUBLESHOOTING

Fault When the main switch is
turned on the machine
does not start
Cause
• Plug not properly connect-
ed.
• Connection panel fuses
are burnt out.
Repair • Carefully check the plug
and the electric cable.
• Check them and replace
them.
EN
30-06-2010 16:36:51