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7 Start-up / operation
After assembly is complete, the VAC is ready
for commissioning. The vacuum fixing devices
can be operated with filtered compressed air
or nitrogen. For the operation of
In case of an unexpected pressure drop the vacuum
fixing devices may come loose. Therefore, they always
have to be secured against falling down.
For VAC 8 and VAC 10 additional adapter plates and
safety ropes are available.
DANGER
From series VAC 11 the vacuum fixing devices are fitted
with an adjustable safety rope.
Handling:
First secure the vacuum fixing device
against falling down. Then check the hose
connections and close all valves. Turn on
the compressed air supply for the vacuum
fixing device and the vibrator. Then
position the vacuum fixing device to the
desired location and actuate the 2/2-way
ball valve on the vacuum fixing device to
generate the required vacuum under the
suction cup.
Check the vacuum fixing device for tight
and secure attachment.
If the fixing device can be loosened by hand,
you should increase the pressure (e.g. on
maintenance unit with pressure regulator).
The vacuum fixing device can be operated with filtered compressed air or nitro-
gen. For operation of certain vibrators a lubricated drive medium is specified.
Adjust the lubricator while the vibrator is running. Exact details concerning can
IMPORTANT
be taken from the operating instructions for the vibrator.
When relocating the vacuum fixing device with hose set HG .. S to another sur-
face the economy air supply function must be readjusted or checked on the re-
strictor screw.
IMPORTANT
Checklist for commissioning:
1) Secure the VAC against falling down?
2) Check all hose connections before opening the air supply.
3) Turn on the compressed air, if necessary.
4) Position the vacuum fixing device to the desired place.
5) Adjust the lubricator, if present.
6) If necessary adjust the required frequency on the pressure regulator.
7) The compressed air feed lines, the plug screws and the fixing screws have to
be tightened and checked.
certain vibrators an lubricated drive medium
is prescribed. More details can be found in
the operating instructions for the respective
vibrators.
Then start the vibrator by actuating the
manual 3/2-way slide valve on the hose set
and adjust the lubricator.
Adjust the desired vibrator frequency
with a pressure regulator (option - e.g.
part of a maintenance unit).
When using a vacuum fixing device with
hose set HG .. S you may activate the
Economy Air Supply function. For this
purpose turn the throttle screw in clock-
wise direction, until the fixing device can
be easily moved by hand. Then start the
vibrator by actuating the manual 3/2-way
slide valve on the hose set, the full vacu-
um will be generated.
21
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