9
|
Troubleshooting
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9
Troubleshooting
DANGER
Electric
shock
danger.
Live
wires.
•
Electrical
installation
work
must
only
be
performed
by
qualified
specialists.
WARNING
Hazard
from
running
vacuum
pump!
There
is
a
severe
threat
for
life
and
limb
depending
on
the
repair
and
maintenance
work
to
be
carried
out
if
the
vacuum
pump
is
running.
Only
carry
out
any
repair
or
maintenance
work
if:
the
vacuum
pump
is
not
running
the
vacuum
pump
is
disconnected
from
the
electrical
supply
and
secured
against
uninten
‐
tional
start
‐
up
vacuum
system
and
pipes
are
not
under
pressure,
hot
surfaces
are
cooled
down,
Disconnect
the
vacuum
system
from
the
process
and
make
sure
that
there
is
ambient
pres
‐
sure
in
the
vacuum
system!
Procedure:
Close
the
shut
‐
off
device
on
the
inlet
side
(not
includ
‐
ed
in
the
scope
of
delivery)
and
slowly
open
the
venting
valve
(AF,
fig.
1).
9.1
General
faults
The
figure
shows
the
components
that
are
relevant
for
troubleshooting.
FV
Float
valve
EF
Exhaust
filter
IS
Intake
screen
GB
Gas
ballast
valve
CPL
Clutch
OF
Oil
filter
Fig.
17:
Vacuum
pump
with
components
relevant
for
troubleshooting
