LEYBOLD RUVAC WH 2500, Инструкция по установке и эксплуатации

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Operation
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130001398_002_C0 - 09/2016 - © Leybold
4.3 Operation
Do not operate the pump without having connected the flanges to a vacu-
um system. Notice safety information 0.2.
The screws of the flanges on the intake and the discharge side must not
be loosened in the presence of a vacuum or while the pump is still running.
During operation of the RUVAC, check the lubricant level from time to time
and also the condition of the lubricant. Correct as required (see Section 5.2).
Normally, the oil LVO 210 is light-brown. If it turns dark, this is a sign of age-
ing. When using PFPE as intended, PFPE will not be subject to ageing.
Dirt Ingress into the Oil via the Piston Rings
In the case of dusty processes which are frequently vented with atmospheric
air, there is the risk of dust being forced into the oil chambers. This can be
prevented by a pressure equalisation between the oil chamber and the pump
chamber. For this, install a valve at the oil inlet which during operation is
opened simultaneously with the venting valve.
Run the Roots pump exclusively under the operating conditions for which it
has been designed. Any modification of the operating parameters (e. g.
intake pressure, intake temperature, ratio between Roots pump and
backing pump) for a longer period may place an inadmissible thermal load
on the pump. Increases in temperature which are not compensated by tak-
ing suitable measures may damage the Roots pump and/or the
backing pump.
Hot surfaces, risk of suffering burns.
Notice safety information 0.3.
Never open the oil-fill or oil-drain plugs in the presence of a vacuum or
while the pump is running. There is the danger that oil may squirt out.
4.4 Switch off and Shutdown
For shutdown, close the valve between the Roots pump and the vacuum
system. First switch off the Roots pump, then the backing pump.
After working with corrosive gases, the system should after 30 to 60 minutes
running without process gas be vented with dry protective gas (e.g. N2) to
prevent corrosion during standstill.
When shutting down the pump and removing it from the system, it is advis-
able to seal the connecting flanges tightly.
CAUTION
NOTICE
CAUTION