GA01300_0902 - 04/2006 - © by Leybold Vacuum
27
Maintenance
5.1
Maintenance Plan
(Recommendation)
No. Rotary vane pump
Measurement/test quantity
Interval
Remarks
TRIVAC D 16 BCS
Operating/auxiliary materials VE VP t 6m a n-a
TRIVAC D 25 BCS
1
Operate the pump for at least 0.8 h
x
Condensed water is thus removed from the oil.
with gas ballast.
2
Check the oil level,
Oil: N 62 or special and
x
x
Refill: Only after the pump has been switched
if required change the oil..
and alternative oils
off.
see Chapter 1.2
3
Check the quality of the oil,
visually (all oils)
x
x
Visually:
normally light and transparent, oil
change the oil if required.
change is required when discolorations increase.
chemically (N 62 or HE 200)
x
Chemically:
to DIN 51558, when the
neutralisation number exceeds 2; then an oil
change will be required.
mechanically (N 62 or HE 200)
x
Mechanically:
when viscosity is 20 % above
the one of fresh oil; then an oil change will be
required.
4
Clean the inlet screen in the intake
Suitable cleaning agent and
x
■
Clean inlet screen with a cleaning agent and
port, change it as required.
compressed air.
blow it out with compressed air under a suction
hood.
■
Replace the defective inlet screen.
Use a cleaning agent which complies with the
national/international specifications.
Observe the safety regulations when using
cleaning agents.
5
Clean the internal demister,
Suitable cleaning agent.
x
Already clean before the maintenance
change it as required.
interval has elapsed when the noise level
increases.
■
Clean internal demister with 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
x
the coupling element for any
damages, change the coupling
element as required.
7
Change the oil -
Oil: N 62 or special and
x
Oil change:
and alternative oils
■
First oil change after 100 operating hours.
■
Pump switched off and cold.
and
Exchange the oil while the pump is cold
so as to avoid releasing adsorbed gases.
clean the oil level glass.
Suitable cleaning agent
Clean the oil level glass with a cleaning agent
and compressed air.
and blow it out with compressed air under a
suction hood.
Use cleaning agents only corresponding to
the national/international specifications.
Observe the safety regulations when using
cleaning agents.
Quantity of oil:
see Technical data
8
Check the fan of the pump and
Brush and industrial vacuum
x
Depending on the amount of dust check the
motor as well as the cooling fins
cleaner.
pump and keep it clean.
on the motor for deposits,
and clean as required.
Caution:
switch off the pump and ensure that
it cannot run inadvertently (disconnect from the
mains).
Key to maintenance plan
VE = Maintenance before switching on the system
VP = Maintenance before starting production
t
= Daily maintenance
6m = Six monthly maintenance
a
= Annual maintenance
n-a = Maintenance every n years
We recommend that you service the pump every two years covering the following:
■
Cleaning
■
Checking the individual components
■
Exchange of all seals
■
Functional check
This check should be run by the Leybold Service.
