Before Use; Operation; Switching The Pump Off - Hilti DD VP-U Bedienungsanleitung

6. Before use

6.1 Setting up the pump
Stand the pump on a dry, horizontal surface and
secure it to prevent possible movement.

7. Operation

WARNING
Check the system for correct operation and vacuum
before resuming work after maintenance.
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.
Check to ensure an unobstructed flow of cooling air
to the pump.
The area up to at least 20 cm from the cooling air
intake and exit must be kept free.
WARNING
Avoid pinching or kinking the supply cord and hose.
NOTE
Check the water level in the water separator and
empty it if necessary.
Connect the hose from the pump to the vacuum
baseplate.
NOTE
Pressure indicator in the green area: vacuum pres-
sure is adequate. Pressure indicator in the red area:
vacuum pressure is inadequate.
If the vacuum pressure is no longer adequate, stop
working immediately.
Check the system for leakage or kinks in the hose,
etc.
Have the fault or damage repaired by the manufac-
turer, 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 Switching the pump off

1. Switch the pump off at the on / off switch.
2. Disconnect the supply cord plug from the power
outlet.
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