Nilfisk Gerni N/G-4001A Instrucciones De Manejo página 31

the switch (2.28) in pos. "0". Fill the tank
with fuel and restart the high pressure
cleaner.
Detergent application
Use only detergent which has been
developed 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
To obtain the optimum performance and
the longest possible life for your high
pressure cleaner it is important to main-
tain the machine. We recommend that you
follow the following directions and refer to
the check list on the next page.
Oil level
The oil level of the pump should be
checked daily. Only read the oil level
when the machine is switched off and
placed on an even surface. The oil must
be visible in the oil glass. Refill by pouring
the oil into the oil glass (2.33).
Oil change
The pump oil should be changed after a
maximum of 300 working hours and at
least once a year. If there is water in the
pump oil (the oil turns white) the contami-
nated oil should be changed and new oil
added (oil type: See technical data).
Oil level/electric motor
(4600/4800)
The motor has no oil consumption.
Nevertheless, check the oil level in the oil
hose with teh machine switched off. The
oil must cover about 30 mm (4600)/ about
45 mm (4800) from the bottom of the
breather glass (5.1),(oil type - see techni-
cal data).
Water filter
Clean the water filter (2.9) as needed.
Disconnect the water inlet hose and
remove the water filter.
Suction filter
Clean the suction filter as needed.
Dismount the suction hose between boiler
and pump and clean the suction 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 (3.1)
change the filter. Empty the fuel tank
(2.11) by dismounting the hose (3.2).
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
prevent particles such as calcium and
sand from entering the Turbo Laser
where they may cause increased wear,
leaks or in serious cases operating mal-
functions.
It may be necessary to change the filter. If
All manuals and user guides at all-guides.com
detergent filter in the tank con-
taining detergent. Check that the
detergent covers the filter com-
pletely.
2. The desired amount of detergent
(up to 6%) can be set on the
detergent regulator (2.29).
After using detergents, clean water
should be sucked through the pump.
Place the detergent hose in clean water,
MAINTENANCE
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
We also recommend the above men-
tioned 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 soft-
ener is added to the water which is fed
into the tank (2.32).
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 lance from the pistol
(2.26). Open detergent valve
(2.29) to max..
3. Start the cleaner at pos. "AUT"
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
and let the machine run for a few minutes.
NOTE! The detergent regulator must be in
pos. "0" when detergent is not being
used as the pump will suck in air.
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 envi-
ronment. If this is not 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
contaminated oil and antifreeze must be
handed in to the local approved authori-
ty/institution 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 hand-
ed 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 author-
ity.
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