Nilfisk 3707 Manuel D'instructions page 26

3707 - 3907 - 3907 L, M, H - 3907/18 - 3907/18 L, M, H
3707/10 - 3707/10 L, M, H - 3907 W - 3907 W L, M, H
Controls, indicators and connections
A. Vacuum gauge
B. Main switch (on "I" - off "0")
C. Reverse phase indicator (only for L - M - H versions)
D. Warning light indicating thermic intervention
E. Machine electrically powered indicator
F. Phase inverter
G. Electric filter shaker start button (optional)
H. Stop button
I. Start button
L. Hour counter
M. Visual level gauge
N. Castor brakes
O. Inlet
P. Container release
Q. Filter chamber
R. Dust container
S. Main filter shaker knob
Inspections prior to starting
Prior to starting, check that:
– The filters are installed;
– all latches are tightly locked;
–
The hose and tools have been correctly fitted into inlet "F"
(Fig. 5);
– The bag or safety container are installed, if applicable.
– Do not use the vacuum cleaner if the filter is faulty.
Starting up
– Lock the castor brakes "E" (Fig. 6) before starting the
vacuum cleaner.
– Move switch "B" (Fig. 6) to the On position ("I").
– If the vacuum cleaner has been working and then stops
and the indicator light "C" (Fig. 4) comes on, or if the
vacuum cleaner motor turns in the wrong direction, turn it
off and turn the inverter "F".
GB
C65
Figure 4
Operating the vacuum
1. RED ZONE
2. GREEN ZONE
Check the flow rate:
– When the vacuum cleaner is operating, the pointer of the
vacuum gauge "A" (Fig. 7) must remain in the green zone
(OK) to ensure that the speed of the intaken air does not
drop below the safety value of 20 m/s.
– If the pointer is in the red zone (STOP), it means that the
speed of the air in the hose is below 20 m/s and that the
vacuum cleaner is not working in safety conditions. Clean
or replace the filters.
– When the hose is blocked, the pointer of the vacuum
gauge must switch from the green zone (OK) to the red
zone (STOP).
ATTENTION DANGER!
If the vacuum cleaner is Class M or H, only use hoses
with diameters that comply with the indications in the
"Technical Specifications" Table in order to prevent the air
speed from dropping below 20 m/s.
ATTENTION DANGER!
When the vacuum cleaner is operating, always check to
make sure that the vacuum gauge pointer remains in the
green zone (OK).
Consult the "Troubleshooting" chapter if faults occur.
ATTENTION DANGER!
Class H - "Asbestos" variant:
– this variant has a 70 mm diameter exhaust where the
exhaust hose is connected.
Only D = 70 mm is tolerated.
Only an exhaust hose with D = 70 mm and L < 5 m can
be used.
Order the exhaust hose from the Manufacturer.
– Shut the inlet with appropriate plug (Fig. 11) when
handling (transporting) the vacuum cleaner.
– Comply with all other prescriptions for class H vacuum
cleaners.
Shaking the main filter
Depending on the quantity of dust cleaned up, shake the main
filter by means of the knob "J" (Fig. 8) when the vacuum gauge
pointer "A" (Fig. 7) switches from the green zone (OK) to the red
zone (STOP).
ATTENTION DANGER!
Stop the machine before shaking the filter.
Do not shake the filter whilst the machine is on as this
could damage the filter itself.
Wait before restarting the vacuum cleaner, to allow the dust to
settle.
Replace the filter element if the pointer still remains in the red
zone (STOP) even after the filter has been shaken (consult the
"Main filter replacement" section).
8
Figure 7
01/2015