The vacuum pump is intended for use in a potentially non-explosive
environment.
As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable for
continuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed more
than 5 min.
For other applications, contact your Busch representative.
- Maximum inlet pressure: 1 bar (abs).
- With pump running at full speed, do not expose to inlet pressure
> 300 (hPa) mbar.
The vacuum pump is tight down to ultimate pressure.
CAUTION
The surface temperature of the vacuum pump can exceed 50 °C
when the vacuum pump is in operation.
Danger of burns!
The vacuum pump may not be touched when it is in operation. If
touching the pump is unavoidable, wait until the surface
temperature has cooled down or wear protective gloves.
CAUTION
The intensity of the noise of the vacuum pump is higher within a
certain area of the pump.
Risk of hearing damage.
Users must wear ear protection when spending a longer period of
time in the vicinity of a non-insulated vacuum pump.
CAUTION
The COBRA BC 0101 G vacuum pumps are always delivered
without oil and without cooling water.
Operation without oil will result in damage to the vacuum pump!
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
CAUTION
The cooling water flow, which is checked by the flowmeter CWM,
must be at least 1 l/min.
l
Make sure that all caps, safeguards and similar covers are mounted
l
Make sure that the safeguards are switched on
l
Make sure that the inlet and outlet for the cooling air are not
covered or closed and that the flow of cooling air is not impaired in
any way
l
Make sure that the system does not leak. Leakages of dangerous
substances must be prevented
l
Make sure that the “Necessary installation instructions” are
followed and especially that adequate cooling is ensured
The following must be noted when the pump is shut down for a longer
period of time:
CAUTION
If there is a risk of frost, all the cooling water must be drained out
of the vacuum pump if the pump is shut down for a longer period
of time!
–
Drain the cooling water
u
Pull off the connections for the inlet and outlet of the cooling
water
u
Drain the cooling water completely
u
If necessary, drain the cooling water with the help of
compressed air to prevent any risk of frost or corrosion
Switching the vacuum pump on/ off
First start-up of the system
l
Make sure that the “Necessary installation instructions” are
followed
l
Make sure that the cooling water flow is set correctly
–
The cooling water flow is factory set on 1 l/min and can be
adjusted at the regulating cock CWR. This water circuit is used to
cool the motor of the NW pump and also the body of the pump.
l
Switch on the vacuum pump
l
Make sure that the system does not leak
If the system is equipped with a solenoid gate valve at the intake:
u
Open the solenoid gate valve
Switching the system off
If the system is equipped with a solenoid gate valve at the intake:
u
Close the solenoid gate valve
l
Switch off the vacuum pump
l
Shut off the cooling water supply
If the system is equipped with a solenoid gate valve in the cooling
water circuit:
u
Close the solenoid gate valve
l
Make sure that the system is currentless
Maintenance
DANGER
In case the vacuum pump has conveyed gases that have been con-
taminated with foreign materials that are dangerous to health, the
oil and condensates will also be contaminated.
These foreign materials can infiltrate the pores, recesses and other
internal spaces of the vacuum pump.
Danger to health when the vacuum pump is dismantled.
Danger to environment.
Always wear protective clothing when carrying out maintenance
work.
Before any maintenance work, the inlet and outlet piping as well as
the vacuum pump itself must be flushed with nitrogen.
CAUTION
Only authorised personnel may carry out dismantling work on the
vacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration Regarding Contamination
of Equipment and Components” that provides information on
possible dangers and appropriate measures.
If this form has not been filled in completely and signed, the
vacuum pump may not be dismantled.
CAUTION
Before maintenance work is started, a safety area of at least 610
[mm] around the machine must be set up.
BC 0101 G
Maintenance
0870704904 (En)
Page 13
Summary of Contents for COBRA BC 0101 G
Page 22: ...Note...
Page 23: ...Note...
