Action
Inspec-
tion
Mainte-
nance lev-
el 1
Mainte-
nance
level 2
Mainte-
nance
level 3
Required material
described in document
OI
OI
SI
SI
Interval
daily
≤ 1 year
≤ 1.5
years
≤ 3
years
Inspection
Visual and acoustic pump
check
● Check the lubricant level
and color of the lubricant
● Check the lubricant level
of the sealing oil
■
● Check the roots pump for
leaks
● Check the roots pump for
running noises
■
Maintenance level 1
Clean the roots pump
● Pump housing from out-
side
● Flush the suction cham-
ber
■
as re-
quired
Lubricant
Suitable cleaning
agent, compatible with
the process
● Change the lubricant and
sealing oil
■
● Check the temperature
sensor (if installed)
■
Maintenance level 2
● Check the coupling for
damage, replace the
toothed ring if necessary
● Change the radial shaft
seal rings and protective
sleeves
● Clean the gear chambers
and replace the seals
■
Maintenance kit with
wearing parts of the
coupling and the radi-
al shaft seal rings
Maintenance level 3
Remove and clean roots
pump
● Replace the seals and all
wearing parts
■
Overhaul kit
Lubricant
Option
● Set of seals
● Set of gear
wheels
Check critical components
and replace if necessary:
● temperature sensor (cali-
brate the sensor with the
reference temperature)
● gear wheels (check the
teeth for breaks)
■
Tbl. 7:
Maintenance intervals
Maintenance
39/56
