8
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Maintenance
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0870169324
_VD
0025
‐
0100G_
‐
0006_IM_en
8
Maintenance
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
is
not
under
pressure!
hot
surfaces
are
cooling
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
(VV,
fig.
1).
WARNING
Danger
from
vacuum
pump
contaminated
with
hazardous
material!
There
is
a
danger
of
poisoning!
•
Vent
the
vacuum
pumps
before
they
are
maintained
8.1
Maintenance
plan
The
maintenance
intervals
strongly
depend
on
the
individual
operating
conditions.
The
inter
‐
vals
specified
below
are
to
be
considered
reference
values
and
should
be
individually
short
‐
ened
or
extended.
Especially
at
high
stress,
e.g.
in
case
of
high
dust
load
in
the
environment
or
the
process
gas,
or
in
case
of
other
contamination
or
ingression
of
process
material,
it
may
be
necessary
to
shorten
the
maintenance
intervals
a
lot.
Interval
Maintenance
task
Rotary
vane
vacuum
pump
R5
RA
daily
•
Check
the
oil
level,
see
chap.
8.2.
Monthly
•
Check
the
vacuum
pump
for
escaping
oil.
Have
the
vacuum
pump
repaired
by
Busch
if
there
are
any
leaks.
•
Check
the
filter
insert
in
the
suction
filter
and
replace
if
necessary,
see
chap.
8.5.
six
‐
monthly
•
Clean
the
vacuum
pump
from
dust
and
contamination.
•
Clean
the
filter
of
the
gas
ballast
valve
(GB,
fig.
2)
Normal
use:
after
max.
4,000
operating
hours
or
after
one
year
at
the
latest
Highly
demanding
purpose:
after
max.
2,000
operating
hours
or
after
no
more
than
half
a
year
•
Replace
the
oil*,
the
oil
filter*
(OF,
fig.
2,
chap.
8.3)
and
exhaust
filters
(EF,
fig.
2,
chap.
8.4).
*Note:
Maintenance
interval
for
synthetic
oil.
Shorten
the
maintenance
interval
if
mineral
oil
is
used.
Contact
the
Busch
Service.
Every
5
years
•
Perform
a
general
overhaul
of
the
vacuum
pump
(in
‐
form
Busch).
Switch
and
control
cabinet
Every
8000
hrs.
or,
at
the
latest,
after
1
year
•
Check
switch
function,
check
for
broken
wires.
