Nilfisk VHW320 Manual De Instrucciones página 30

VHW32x - VHW42x - VHW44x
Controls and indicators
1. Vacuum unit start/stop switch
Use the button to start/stop the first motor. If the indicator
is lit, the main motor is ON.
2. Vacuum gauge
3. PullClean filter cleaning system
Inspections prior to starting
Before starting, check that:
■ The filters are installed.
■ The closing band is properly tightened.
■ The vacuum hose and tools have been correctly fitted into
the vacuum inlet (1).
■ In case of liquid application, the liquid mechanical stop is
properly installed inside the liquid container:
■ The bag or safety container is installed, if applicable.
Do not use the device if the filters are faulty.
Starting and stopping
Before starting the machine, lock the castor brakes
■ Turn the switch (1) to "I" position to start.
■ Turn the switch (1) to "0" position to turn the vacuum
cleaner off.
Check the machine operation.
If the machine does not vacuum any air, the rotation
direction is not correct; remove the plug from the socket
and turn the selector inside the plug to perform the correct
phase connection.
I
Machines equipped with an electrical system preset
GB
for start from vacuum inlets
■ Turn the main switch to "I" to electrically power the
machine.
F
■ Press the start button to start the machine.
If the machine is equipped with vacuum inlet sensor, vacuuming
D
will start automatically, after performing the above procedure,
when the first inlet will be opened by the operator.
The machine will stop two minutes after the last inlet is closed
E
by the operator. To immediately stop the machine press the
stop button (6).
Too frequent starts of the machine can damage the
motor; it is advisable not to modify the tripping time of
the sensor located on the vacuum inlets.
C393
Figure 5
Figure 6
CAUTION!
Figure 5
CAUTION!
[ NOTE ]
CAUTION!
Emergency stopping
Turn the switch to "0" to turn off the machine.
Operation
Vacuum gauge (2): green zone (3), red zone (1)
When using the machine, check the flow control:
■ when the machine is operating, the pointer of the vacuum
gauge must remain in the green zone (3) to ensure that
the speed of the intake air does not drop below the safety
value of 20 m/sec;
■ If the pointer is in the red zone (1) it means that the speed
of the air in the vacuum hose is less than 20 m/s, and that
the machine is not operating in optimal conditions. Shake
or replace the filter.
■ during normal operation conditions, close the vacuum
hose, the pointer of the vacuum gauge must switch from
the green zone (3) to the red zone (1).
The air speed in the vacuum hose must not be less than
20 m/s.
Condition indicated by the vacuum gauge pointer in the
green zone (3).
All machines can be used only with hoses whose
diameters comply with the specifications in the
"Technical Data" table.
Consult the "Troubleshooting" chapter if faults occur.
At the end of a cleaning session
■ Turn off the machine and remove the plug from the socket.
■ Wind up the connection cable.
■ Empty the container and clean the machine as described
in the "Maintenance, cleaning and decontamination"
paragraph.
■ Wash the container with clean water if aggressive
substances have been vacuumed.
■ Store the machine in a dry place, out of reach of
unauthorised people.
■ Lock the castor brakes.
■ During transport and when not using the machine, close
the vacuum inlet with the relevant plug (if equipped).
10
Figure 7
CAUTION!
CAUTION!
CAUTION!