Troubleshooting
WARNING
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Vacuum pump/ Compressor/ Vacuum and pressure pump/ Blower for use in potentially explosive atmospheres.
The side channel blower must only be operated in faultless condition.
Risk of explosion in case of operation of faulty equipment!
A faulty side channel blower must immediately be removed from service.
In case of faults the cause of which cannot be determined the Busch service must be contacted.
WARNING
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Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or equivalent national accident prevention regulation.
CAUTION
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During operation the surface of the side channel blower may reach temperatures of more than 70 °C.
Risk of burns!
Let the side channel blower cool down prior to a required contact or wear heat protection gloves.
Problem
Possible Cause
Remedy
The side channel blower does not reach the
usual pressure
The drive motor draws a too high current
(compare with initial value after commission-
ing)
Vacuum operation:
Evacuation of the system takes too long
Pressure operation:
Filling the system takes too long
Building up pressure in the system takes too
long
Vacuum operation:
The vacuum system or suction line is not
leak-tight
Pressure operation:
The pressure system or pressure line is not
leak-tight
Check the hose or pipe connections for possi-
ble leak
In case a screen is installed in the suction con-
nection/gas inlet (e):
The screen in the suction connection/gas inlet
(e) is partially clogged
Clean the screen
If cleaning is required too frequently install a
filter upstream
In case a filter is installed on the suction connec-
tion/gas inlet (e):
The filter on the suction connection/gas inlet
(e) is partially clogged
Clean or replace the inlet air filter, respectively
Partial clogging in the suction, discharge or
pressure line
Remove the clogging
Long suction, discharge or pressure line with
too small diameter
Use larger diameter
Internal parts are worn or damaged
Repair the side channel blower (Busch service)
The gas conveyed by the side channel blower
smells displeasing
Process components evaporating under vac-
uum
Check the process, if applicable
The side channel blower does not start
The drive motor is not supplied with the cor-
rect voltage or is overloaded
Supply the drive motor with the correct volt-
age
Troubleshooting
SB 0050 - 1400 D0/D2
ATEX-Version
0870145236
/
181122
page 10
