Action
described in docu-
ment
Inspec-
tion
OI
Cleaning
OI
Mainte-
nance
level 1
OI
Maintenance
level 2
MM
Mainte-
nance level
3
MM
Required
material
Interval
Weekly
≤ every
six
months
≤ 1 year
≤ 16000 hours
≤ 5 years
Dismantle and clean
vacuum pump, re-
place seals and all
wear parts:
● Storage
● Replace the radi-
al shaft seal ring
2)
● Clean or replace
the exhaust
valves
● Check the cou-
pling and replace
the sleeve
■
Overhaul
kit (with-
out vane)
Operating
fluid
● Vane
■
as required
Set of
vanes
Tbl. 9:
Maintenance intervals
8.3 Changing the operating fluid
WARNING
Health hazard and risk of environmental damage from toxic contaminated operating fluid
Toxic process media can cause operating fluid contamination. When changing the operating fluid,
there is a health hazard due to contact with poisonous substances. Illegal disposal of toxic substan-
ces causes environmental damage.
► Wear suitable personal protective equipment when handling these media.
► Dispose of the operating fluid according to locally applicable regulations.
WARNING
Danger of poisoning from toxic vapors
Igniting and heating synthetic operating fluid generates toxic vapors. Danger of poisoning if inhaled.
► Observe the application instructions and precautions.
► Do not allow tobacco products to come into contact with the operating fluid.
CAUTION
Scalding from hot operating fluid
Danger of burns when draining operating fluid if it comes into contact with the skin.
► Wear protective equipment.
► Use a suitable collection receptacle.
2)
In event of noticeably high loss of operating fluid from operating fluid escaping between the pump housing and
motor or fan, the radial shaft seal rings have to be replaced.
Maintenance
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