23
Maintenance
No.
Rotary vane pumps
TRIVAC S/D 40 B
TRIVAC S/D 65 B
Measurement/test quantity
Operating / auxiliary
materials
VE VP t
6m a n-a
Remarks
1 Operate the pump for at least 0.8
hours with gas ballast.
x Condensed water is thus removed from the oil.
2 Check the oil level, change the oil
if required.
Oil: N 62 or special
and alternative oils
x x Refill: only after the pump has been switched off.
3 Check the quality of the oil,
change the oil if required.
visually
chemically
mechanically
x x
x
x
Visually: normally light and transparent, oil
change is required when discolorations increase.
Chemically: to DIN 51558 when the neutralisation
number exceeds 2; then an oil change will be
required.
Mechanically: when dynamic viscosity at 25 °C
exceeds 300 mPas; then an oil change will be
required.
Disposal of waste oil: see Section 3.8.1 and 5.2.
4 Clean the dirt trap in the intake
port, change it as required.
Suitable cleaning agent and
compressed air.
x
❏ Clean dirt trap with a cleaning agent and blow it
out with compressed air under a suction hood.
❏ Replace the defective dirt trap.
Use a cleaning agent which complies with the
national / international specifications.
Observe the safety regulations when using
cleaning agents.
Interval
Refer also to the Operating Instructions
– Section: individual components.
5 Clean the internal demister,
change it as required.
Suitable cleaning agent.
x
Already clean before the maintenance intervalhas
elapsed when the noise level increases.
❏ Clean the internal demister using a cleaning
agent.
❏ Replace the defective internal demister.
❏ Dispose of the defective internal demister as
special waste.
Cleaning agent according to national / international
specifications.
Observe the safety regulations when using
cleaning agents.
6 Check the edges of the teeth on
the coupling element for any
damages, change the coupling
element as required.
x
3.10 Maintenance Plan
(Recommendation)
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