Operation; Switching The Pump Off; Care And Maintenance - Hilti DD VP-U Mode D'emploi

7 Operation

en
WARNING
Check the system for correct operation and
vacuum before resuming work after mainte-
nance.
7.1 Checking pump operation and vacuum
1. Plug the supply cord into the power outlet.
2. Switch the pump on at the on / off switch.
3. After a short time, the pressure gauge
should indicate a pressure within the green
area.
7.2 Switching the pump on
1. Plug the supply cord into the power outlet.
2. Switch the pump on at the on / off switch.
NOTE The vacuum is monitored by a built-
in pressure gauge.
7.3 Regular checking during pump
operation
7.3.1 Checking the pressure gauge
Check the pressure gauge at regular intervals
while the work is being carried out.
NOTE
Pressure indicator in the green area: vacuum
pressure is adequate. Pressure indicator in the
red area: vacuum pressure is inadequate.
If the vacuum pressure is no longer adequate,
stop working immediately.

8 Care and maintenance

CAUTION
Disconnect the supply cord plug from the
power outlet before maintenance.
6
Check the system for leakage or kinks in the
hose, etc.
Have the fault or damage repaired by the man-
ufacturer, i.e. by an authorized service center.
7.3.2 Checking the water level in the
water separator
Check the water level in the water separator at
regular intervals.
NOTE
The appliance is equipped with a safety valve
to prevent water being drawn into the pump
when the water container is full.
If the safety valve is activated, vacuum pressure
will drop.
Stop working if this happens and empty the
water separator: see section 8.2.
7.4 Protection against overheating
The pump is equipped with an overheating
protection cut-out. In the event of overheating,
the pump switches itself off and switches itself
on again automatically after cooling down. The
vacuum may drop during this time - see section
9.

7.5 Switching the pump off

1. Switch the pump off at the on / off switch.
2. Disconnect the supply cord plug from the
power outlet.
3. Before storing the pump, wind the supply
cord and hose round the water separator
and beneath the supply cord hook.
CAUTION
To reduce the risk of electric shock, do not
expose the appliance to rain or moisture.
Store indoors.