Nilfisk Gerni N/G-3000A Instrucciones De Manejo página 29

The construction and function of
the high pressure cleaner
Your new high pressure cleaner is con-
structed as shown in the functional dia-
gram and photo No. 2 - 5. The machine
consists of a low pressure side and a high
pressure side with a built-in boiler system
and high pressure pump (2.13). From the
water inlet (2.7), the water is carried
through the float valve (2.18), into the
water box/pre-heater (2.6). At maximum
water level the float valve shuts off the
water supply. From the water box, the
water is sucked into the three-cylinder
pump which is driven by the electric motor
(2.11). From the low pressure chamber of
the high pressure pump the water is
sucked through the suction valves into the
cylinders. Here the water is pressurized
and pumped through the pressure valves
into the high pressure side through the flow
switch (2.17) and into the coil (2.5) where it
is heated to the required temperature by
hot water or steam. The operating temper-
ature is set and adjusted on the start/stop
button (2.23). The water is pumped
through the pressure outlet (2.26) into the
high pressure hose (2.20), to the pistol
(2.21), the lances (2.22) and out through
the nozzles (2.1) and (2.2).
OPERATING AND STARTING GUIDE
High pressure Hose
Your new high pressure cleaner is provi-
ded with a heavy high pressure hose. Do
not attempt to pull the high pressure hose
when moving the high pressure cleaner.
Be careful not to run over or in any other
way damage the high pressure hose. The
warranty does not cover broken hoses or
hoses which have been run over.
All manuals and user guides at all-guides.com
DESCRIPTION
The pressure of the high pressure cleaner
is adjustable on the pressure regulation
handle (2.3) and can be read on the pres-
sure gauge (2.19). If the water pressure
exceeds the normal working pressure the
built-in bypass valve (2.16) will open the
bypass and thereby prevent damage to
the high pressure cleaner.
From the fuel tank (2.9) the fuel is sucked
through the fuel filter (2.10/3.1) and on to
the burner.
The high pressure cleaner can operate
with either cold water, hot water or steam.
For hot water or steam operation the inlet
water is pre-heated on the low pressure
side in the pre-heater, while on the high
pressure side it is heated by means of the
burner (2.8) to the operating temperature
in the boiler coil.
The high pressure cleaner is equipped
with a steam device (2.15). Through recir-
culation it is possible to heat the water to
130°C.
Detergent is added through the detergent
hose from an external tank.
2.1 High pressure jet
2.2 Low pressure jet
2.3 Pressure regulation handle
Lances:
Your new high pressure cleaner may be
equipped with one or more of the following
lances:
• Single lance
is supplied with a fixed spray nozzle and a
lance with the possibility of constant pres-
sure and application of detergents. It is
operated by means of the pistol grip.
• Double lance
is supplied with a fixed spray nozzle and
two lances with the possibility of pressure
regulation and application of detergents. It
is operated by means of the pistol grip and
the regulation handle.
• SPECTRUM lance
is supplied with a high efficiency fixed
spray nozzle and two lances with the pos-
sibility of pressure regulation and applica-
tion of detergents. It is operated by means
of the pistol grip and the regulation handle.
• Turbo Laser lance
is supplied with a patented nozzle system
that provides an increased cleaning effect
together with two lances with the possibili-
ty of pressure regulation and application of
detergents. It is operated by means of the
pistol grip and the regulation handle.
NOTE: When using
LaserLance the temperature must
not exceed 90°C.
Fine Sand Filter
If you use water containing fine sand you
must mount a fine sand filter. The filter ele-
ment is exchanged as required.
If a fine sand filter is not fitted there is a risk
that the fine sand will deposit in the unit
and hereby damage the machine. This is
not covered by the warranty.
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
2.14
2.15
2.16
2.17
2.18
2.19
2.20
2.21
2.22
2.23
2.24
2.25
2.26
2.27
2.28
2.29
2.30
2.31
3.1
3.2
Starting
If you require the high pressure cleaner to
work with an action radius larger than its
standard, you should lengthen the high
pressure hose and not the electric cable.
The high pressure cleaner must be situat-
ed as far away from the cleaning site as
possible.
1. Connect the electric cable. Note
the rated voltage and amperage
of the high pressure cleaner :
Model 3000A
1 X 220 - 240 V, 50 Hz 11 A
2. Connect the high pressure hose
to the pressure outlet (2.26). Flush
the water supply hose through
and connect it to the water inlet
(2.7). The hose must be min. 3/4".
The water supply pressure must
be max./min. 10/1 bar during
operation (min. 3 bar when using
steam device).
Turn on the water.
3. Fill with diesel oil. Turn the operat-
ing thermostat (2.24) to pos. "0".
Turn on the mains switch. Activate
the pistol (2.21) and start the
machine
the Turbo start/stop button (2.23).
4. Flush the high pressure hose and
the pistol through and then fit the
Turbo Laser or standard lance on
the pistol.
5. Open the pressure regulating han-
dle (2.3) and activate the pistol
(2.21). Allow the high pressure
cleaner to run until the pressure is
stable (to bleed the high pressure
Thermostat sensor
Heating coil
Water tank/pre-heater
Water inlet/water filter
Burner
Fuel tank
Fuel filter
Electric motor
Detergent tank (external)
High pressure pump
Non-return ball valve
Steam device
bypass valve
Flowswitch
Float valve
Pressure gauge
High pressure hose
Pistol
Lances/Turbo Laser
Start/stop button
Operating thermostat
Steam device regulator
Pressure outlet
Fuel pump
Suction hose
Fuel level sensor
Safety valve
Overheating protector
Filling up of fuel
Filter for detergent
by activating the
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