5 Installation at Site
25 of 126
Amacan K
1579.807/07-EN
5.2.4 Checking the direction of rotation
DANGER
Pump set running dry
Explosion hazard!
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Check the direction of rotation of explosion-proof pump sets outside
potentially explosive atmospheres.
WARNING
Improper handling when placing the pump set in a vertical/horizontal position
Personal injury and damage to property!
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Select suitable lifting equipment for the size of the pump.
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Use appropriate means to secure the pump set against tilting, tipping over or
rolling off.
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Maintain a safe distance during lifting operations (load may swing when being
lifted).
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Use additional supports for the transport holder to secure it against tilting.
WARNING
Improper positioning of pump set when checking the direction of rotation
Personal injury and damage to property!
▷
Use appropriate means to secure the pump set against tilting or tipping over.
WARNING
Hands or foreign objects in the pump casing
Risk of injuries, damage to the pump!
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Never insert your hands or any other objects into the pump.
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Check that the inside of the pump is free from any foreign objects.
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Take suitable precautions (e.g. wear safety goggles).
CAUTION
Pump set running dry
Increased vibrations!
Damage to mechanical seals and bearings!
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Never operate the pump set for more than 60 seconds without the fluid
handled.
Check the direction of rotation before installing the pump set, i.e. in dry condition.
1. Place the pump set in a vertical position on a level surface and secure it
sufficiently against tipping over.
2. Connect the pump set to the power supply and start it up.
3. Use one of the following options to check the direction of rotation:
ð
1. Look down into the pump casing and check that the impeller is turning
clockwise.
ð
2. Verify the direction of rotation of the impeller. The direction of rotation of
the impeller must match the arrow indicating the direction of rotation on
the bearing housing.
4. If the impeller rotates in the wrong direction of rotation, check and correct the
electrical connection and the control system if applicable. Then check the
direction of rotation again.
