17
CHANGING THE HIGH PRESSURE NOZZLE.
The high pressure nozzle fitted on the lance must be
changed from time to time, as this component is subject
to normal wear during use. Wear may generally be
detected by a drop in the working pressure of the
cleaner. To replace it, consult your supplier and/or
dealer for instructions.
OPERATIONS FOR USING ANTIFREEZE (fig.
17).
1)
Turn off the water supply (tap), disconnect the hose
and run the cleaner until it is completely empty.
2)
Stop the water cleaner with the ON/OFF switch in
the “O” position (fig.10A).
3)
Prepare a container with the solution of antifree-
ze.
4)
Immerse the tube in the container with the anti-
freeze solution.
5)
Start the water cleaner with the ON/OFF switch in
the “I” position.
6)
Start the cleaner and let it run until antifreeze comes
out through the lance.
7)
Suck up antifreeze with the detergent intake system
too.
8)
Switch off the cleaner and disconnect the electric
power by switching off the omnipolar switch,via the
omnipolar switch or by unplugging the plug from the
socket.
Anti-freeze may cause environmental pollu-
tion. Always follow the instructions given on
the pack. (Dispose of carefully.)
CHECKING PUMP OIL LEVEL AND OIL CHAN-
GE.
From time to time check the oil level in the high pressure
pump by means of the sight glass (fig. 18A) or the
dipstick (fig. 18B).
If the oil has a milky appearance, call the technical
service centre immediately.
Change the oil after the first 50 hours' work and sub-
sequently every 500 hours or once a year.
Proceed as follows:
1)
Unscrew the drain cap situated under the pump
(fig. 18C).
2)
Unscrew the cap with the dipstick (fig. 18).
3)
Let all the oil drain off into a container and deliver it
to an authorized oil collection and disposal centre.
4)
Replace the drain screw and pour fresh oil in throu-
gh the filling cap on top (fig. 19A) until it reaches the
level indicated on the sight glass (fig. 19B).
For water cleaners without oil drain bung,
contact our technical service centre for re-
placement.
Use only SAE 15 W40 oil.
CLEANING THE WATER FILTER
Clean the water intake filter regularly and free it from
any impurities (fig. 20).
TABLE OF ROUTINE MAINTENANCE TO BE
PERFORMED BY THE USER.
Description of operations:
Check power cable - pipes - high
pressure connectors:
Each use
Ist oil change in H.P. pump:
After 50 hours
Subsequent changes in H.P.
pump:
E v e r y 5 0 0
hours
Clean water filter
Every 50 hours
Description of operations:
Change seals on H.P. pump:
Every 500 hours
Change lanze nozzle:
Every 200 hours
Calibrate and check the safety
devices:
Once a year
TABLE OF EXTRAORDINARY MAINTENANCE
TO BE PERFORMED BY THE TECHNICAL
SERVICE CENTRE.
IMPORTANT:
These intervals refer to normal working conditions.
For heavy duty use decrease the interval for each
job.
For maintenance and/or repairs, use
only original spare parts which offer the
greatest characteristics of quality and
reliability. Failure to use original spare
parts absolves the manufacturer from
all liability and transfers it to the person
carrying out the operation.
PERIODS OF INACTIVITY
If the machine is to remain inactive for a long period,
disconnect the supply sources, drain the tank(s) of all
the operating fluids and protect any parts that could
be damaged by the accumulation of dust.
Grease the parts that could be damaged by drying out,
such as the supply hoses.
