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Troubleshooting
0870169324
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0025
‐
0100G_
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46
Problem
Possible
cause
Remedy
Vapors
or
oil
drops
escape
from
the
gas
outlet
of
the
vacuum
pump.
The
exhaust
filters
(EF,
fig.
2
and
17)
are
partially
clogged.
•
Replace
the
exhaust
fil
‐
ters
(EF,
fig.
2
and
17).
Exhaust
filters
(EF,
fig.
2
and
17)
and
o
‐
rings
are
not
installed
properly.
•
Determine
the
proper
position
of
the
exhaust
fil
‐
ters
(EF,
fig.
2
and
17)
and
o
‐
rings.
The
float
valve
(FV,
fig.
17)
does
not
work
properly.
•
Check
the
float
valve.
•
Let
the
vacuum
pump
re
‐
paired
by
Busch.
The
oil
is
black.
The
periods
between
the
oil
changes
are
too
long.
•
Flush
the
vacuum
pump.
Please
contact
your
con
‐
tact
person
from
Busch
for
this.
The
air
filter
(AF,
fig.
1)
is
defective.
•
Replace
air
filter.
There
is
a
high
heat
devel
‐
opment
during
operation
of
the
vacuum
pump.
•
See
"High
noise
develop
‐
ment
during
operation
of
the
vacuum
pump".
The
oil
is
emulsified.
Liquids
or
large
amounts
of
vapors
have
been
sucked
into
the
vacuum
pump.
•
Flush
the
vacuum
pump.
Please
contact
your
con
‐
tact
person
from
Busch
for
this.
•
Clean
the
filter
of
the
gas
ballast
valve
(GB,
fig.
2
and
17).
•
Change
the
operating
mode
(see
Transport
of
condensing
vapors
(chap.
7.3).
To
solve
any
problems
that
are
not
listed
in
the
section
on
troubleshooting,
talk
to
your
Busch
contact.
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