Detergent Application; Maintenance; Oil Level/Pump; Water Filter - Nilfisk Gerni 2302A Mode D'emploi

Detergent application

Use only detergent which has been devel-
oped specifically for use in high pressure
cleaners. It is economical in use and is
gentle on the cleaning object and the high
pressure cleaner.
1. Place the detergent hose with the
detergent filter in the tank contain-
To obtain the optimum performance and
the longest possible life for your high pres-
sure cleaner it is important to maintain the
machine. We recommend that you follow
the following directions and refer to the
check list on the next page.
Oil level/punp
Add oil in level with the lower edge of the
oil filling hole
(for oil type and quantity please see the
technical data).

Water filter

Clean the water filter (2.9) as needed.
Disconnect the water inlet hose and
remove the water filter.

Fuel filter

We recommend that you change the filter
once a year or as the need arises.
If water is found in the fuel filter (4.36)
change the filter. Empty the fuel tank (2.11)
Clean the tank.

Turbo Laser

Clean the filter in the Turbo Laser lance
(2.27) regularly. The filter is mounted in the
inlet opening at the throttle control to pre-
vent particles such as calcium and sand
from entering the Turbo Laser where they
may cause increased wear, leaks or in seri-
ous cases operating malfunctions.
It may be necessary to change the filter. If
so, put a screwdriver or similar tool through
the filter and pull it out. Fit the new filter
with an O-ring and press it into the opening
of the Turbo Laser lance. Make sure that
the filter is placed with the largest contact
face towards the Turbo Laser head.
When inspecting or replacing parts in the
Turbo Laser spray the metal parts
with "Pronto Universal", "WD 40",
"Servisol", "Caramba" or similar
products that are able to:
a. Counteract moisture
b. Protect against corrosion
c. Lubricate and clean
ing detergent. Check that the
detergent covers the filter com-
pletely.
2. The desired amount of detergent
(up to 6%) can be set on the deter-
gent regulator (2.29).
3. On the SPECTRUM lance and the

MAINTENANCE

We also recommend the above mentioned
treatment if the Turbo lance is not being
used for a long period of time.

Water softener

To prevent lime scale deposits from block-
ing pipes, hoses and nozzles water soften-
er is added to the water which is fed into
the tank (3.32).

Descaling

Even though the high pressure cleaner is
equipped with a water softener device we
recommend that the machine be regularly
descaled. Descaling is required if you find
a pressure increase of 5 bar or more over
operating pressure.
1. Place the detergent pipe (2.34)
into the descaling acid.
2. Dismount the lance82.27) from the
pistol (2.26).
3. Start the cleaner and let it run for
1/2 min.
4. Close the pistol (2.26) a few times
so the cleaner is also descaled in
the by-pass system.
5. Stop the cleaner and let the
descaling acid work for 5 min.
6. Restart the cleaner.
If the pressure is not down to the operating
pressure the process is repeated. After
descaling the system must be with clean
water to remove acid residues. Close the
pistol a couple of times so that the by-pass
system of the cleaner is flushed clean. The
cleaner is then ready for use again.
NOTE! Descaling acid is corrosive; wear
facial protection, protective gloves,
etc.

Frost protection

The best frost protection is to place
your high pressure cleaner in a
frost free environment. If this is not
Turbo Laser, application of deter-
gents can be carried out by turn-
ing the regulation handle.
After using detergents, clean water should
be sucked through the pump. Place the
detergent hose in clean water, and let the
machine run for a few minutes
possible the high pressure cleaner must
be frost protected as follows:
1. Remove the cover and turn off the
water supply.
2. Turn on the machine, activate the
pistol and let the machine empty
the water tank.
3. Add 4 litres of antifreeze mix. to the
water tank (2.7).
4. Start the machine by turning the
switch (2.28) to pos. "AUT", acti-
vate the pistol and let the machine
run with the pressure regulation
handle in the open position until
antifreeze comes out of the noz-
zles (2.1) and (2.2). Release the
pistol trigger a couple of times to
frost protect the by-pass and safe-
ty valve.
The antifreeze can be collected and used
again.

Cleaning

Always keep your high pressure cleaner
clean. This increases the life and function
of the individual parts considerably.
Replacements/destruction
All replaced parts such as water filter, fine
sand filter, Turbo Laser filter as well as con-
taminated oil and antifreeze must be hand-
ed in to the local approved authority/insti-
tution for deposit/destruc-tion.
When the high pressure cleaner is no
longer to be used, the detergent as well as
pump and stator oil must be drained off
and delivered in accordance with the
above mentioned instructions. The high
pressure cleaner must likewise be handed
in to the local, approved institution for
destruction.
Any replaced parts from service visits may
be given to the service personnel who will
deliver them to the proper authority.
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