Task Step Key Points
Shutting down
the Vacuum
Excavator
1. Shut down water blaster.
Switch off the water pump on the control
panel in order to stop the water blaster.
2. Empty the suction line.
Lay the suction hose down with the nozzle
completely open to allow any material in
the suction hose to be sucked into the
collection drum.
3. Shut down engine.
(Leave it on if material
discharge is going to
occur at current work
location)
Lower the engine speed to idle. After 10
seconds at idle, turn the ignition key to the
off position.
Emptying the
storage drum
1. Choose the discharge
location.
The material storage drum can be
emptied at the work location or towed to a
different location.
NOTE
If the trailer is going to be towed
to a different location for
emptying, always following the
towing instructions detailed
earlier in this manual.
Also stow water blasting and
suction hoses as detailed below.
2. Decide on liquid or solid
material release.
Dependent on what has been sucked into
the storage drum; choose a liquid release
instead of a solid release.
3. Mainly or initial LIQUID
release.
ACTIVITY
If mainly or initially a LIQUID
release then:-
Return the engine to idle and
switch off.
Move to the rear of the
collection drum and slowly
open the gate valve and allow
the liquid to drain.
4. Mainly SOLID material
release.
ACTIVITY
If mainly SOLID material release:
Ensure that the engine is at full
speed in order to achieve full
suction.
Move to the rear of the
collection drum and unscrew
the central door handle until it
is completely released. As long
as suction is being maintained,
the door will remain closed.
Whilst no person is standing in
front of the door, return to the
engine, reduce the speed to
idle then switch it off.
The drum door should open by
itself and the solid material
should discharge.
13
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