CAUTION
_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
The vacuum pump shall be protected against contact during opera-
tion, it shall cool down prior to a required contact or heat protection
gloves shall be worn.
CAUTION
_a
The gas conveyed by the vacuum pump contains remainders of oil.
Aspiration of process gas over extended periods can be harmful.
The room into which the process gas is discharged must be suffi-
ciently vented.
●
Make sure that all provided covers, guards, hoods etc. remain
mounted
●
Make sure that protective devices will not be disabled
●
Make sure that cooling air inlets and outlets will not be covered or
obstructed and that the cooling air flow will not be affected ad-
versely in any other way
●
Make sure that the installation prerequisites (
Ú
page 6: Installation
Prerequisites) are complied with and will remain complied with,
particularly that a sufficient cooling will be ensured
Conveying Condensable Vapours
CAUTION
_a
Residual condensates dilute the oil, deteriorate its lubricating prop-
erties and can cause a seizure of the rotor.
Apply a suitable operating method to make sure that no conden-
sates remain in the vacuum pump.
In order to use the vacuum pump for the conveyance of
condensable vapours, the vacuum pump must be equipped with a
shut-off valve in the suction line and with a gas ballast.
●
Close the shut-off valve in the suction line
●
Operate the vacuum pump with the suction line shut off for
approx. half an hour, so that the operating temperature rises to
approx. 75 °C
At process start:
●
Open the shut-off valve in the suction line
At the process end:
●
Close the shut-off valve in the suction line
●
Operate the vacuum pump for another approx. half an hour
Maintenance
In case the vacuum pump is used in potentially explosive atmosphere
and/or to convey potentially explosive gases/gas mixtures:
WARNING
_ad
The maintenance must be conducted regularly according to the
maintenance schedule below and genuine spare parts and
consumables, approved for use in potentially explosive areas by
Busch, must be used exclusively.
Maintenance work must be executed by qualified personnel, spe-
cially instructed in the maintenance of this type of vacuum pump
by Busch.
DANGER
_age32
In case the vacuum pump conveyed gas that was contaminated
with foreign materials which are dangerous to health, harmful ma-
terial can reside in filters.
Danger to health during inspection, cleaning or replacement of fil-
ters.
Danger to the environment.
Personal protective equipment must be worn during the handling
of contaminated filters.
Contaminated filters are special waste and must be disposed of
separately in compliance with applicable regulations.
CAUTION
_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
●
Prior to action that requires touching of the vacuum pump, let the
vacuum pump cool down, however, if the oil is to be drained, for
no more than 20 minutes (the oil shall still be warm when being
drained)
●
Prior to disconnecting connections make sure that the connected
pipes/lines are vented to atmospheric pressure
Maintenance Schedule
Note
: The maintenance intervals depend very much on the individual
operating conditions. The intervals given below are upper limits that
must not be exceeded.
Particularly heavy duty operation, such like high dust loads in the envi-
ronment or in the process gas, other contaminations or ingress of pro-
cess material, can make it necessary to shorten the maintenance
intervals significantly.
Daily:
Version without level switch:
◆
Prior to start-up check the level and the colour of the oil
(
Ú
In case the vacuum pump is used in potentially explosive atmosphere
and/or to convey potentially explosive gases/gas mixtures and is
n o t
equipped with oil separator pressure monitoring:
◆
Check the oil film on and/or around the safety valve.
A growing oil film on and/or around the safety valve indicates
too frequent operation of the safety valve. Too frequent oper-
ation of the safety valve means that the exhaust filter is par-
tially clogged and/or the flame arrestor (k) is partially clogged
and/or the discharge line is partially clogged or obstructed. In
this case remedial action must be taken immediately.
For exhaust filter change
Ú
page 12: Exhaust Filter
For flame arrestor service:
WARNING
_ad
The proper assembly of flame arrestors is essential for their safe
function.
Risk of explosion in case of faulty assembly!
Flame arrestors must only be serviced by personnel that have re-
ceived specific training for this purpose either by Busch or by the
manufacturer of the flame arrestors.
Maintenance
RE
0016
B / RE
0040
B / RE
0063
B
with safety valve, without motor
0870142823
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