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Operating Instructions
10/2010
1096.0799 | VU / VH Series
33
8 Troubleshooting
DANGER
Risk of injuries caused by running aggregate!
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Do not touch the running aggregate.
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Do not carry out any works on the running aggregate.
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Prior to carrying out any assembly or maintenance works, de-energize the motor and protect it against restart.
RISK OF ELECTRIC SHOCK
Risk of death from electric shock!
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Any electrical works must be carried out by qualified electricians only.
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Observe the IEC 30364 (DIN VDE 0100) and for potentially explosive areas the IEC 60079 (DIN VDE 0165) standard.
WARNING
Risk of injuries caused by vacuum and harmful media to be pumped and operating liquid!
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Use protective equipment when carrying out any works on the pump/aggregate.
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Make sure the pump/aggregate is depressurized.
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Drain the pump. Reliably collect operating liquid and media to be pumped and dispose of in an environmentally-compatible way.
If the machine operator is not able to rectify occurring defects himself, he has to call the person responsible for machine maintenance.
If the maintenance staff is not able to rectify the defect, the manufacturer has to be informed accordingly. The manufacturer will provide
troubleshooting support if he gets a detailed description of the defect.
Technical support address
Speck Pumpen Vakuumtechnik GmbH
Regensburger Ring 6 – 8, 91154 Roth / Germany
PO Box 1453, 91142 Roth / Germany
Phone: +49 (0) 9171 809 0
Fax:
+49 (0) 9171 809 10
E-mail:
Internet:
www.speck-pumps.de
.
Defect
Cause
Rectification
Motor does not start
Motor
One phase of the power supply is interrupted
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Check the power supply, check the motor
Two phases of the power supply are interrupted
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Check the power supply, check the motor
The motor protection switch has tripped
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Switch on the motor protection switch
The motor is blocked
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Check the motor
Pump is blocked
Impeller/inter casing is subject to corrosion
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Use rust remover to overcome the blockage
of the pump
Ice inside the pump (solidified operating liquid)
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Carefully heat up and defrost the pump
Contaminations or foreign bodies inside the pump
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Flush/disassemble the pump, clean it
Pump calcification
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Descale the pump
Blocked/defective impeller
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Provide for a correct gap size of the inter
casing/impeller or replace
Defective motor bearing
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Replace the motor bearing