KSB CHTRa, Инструкция по установке и эксплуатации

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6 Commissioning/Start-up/Shutdown
52 of 116
CHTRa
6.2.6 Checking the direction of rotation
DANGER
Temperature increase resulting from contact between rotating and stationary
components
Explosion hazard!
Damage to the pump set!
▷ Never check the direction of rotation by starting up the unfilled pump set.
▷ Separate the pump from the motor to check the direction of rotation.
CAUTION
Pump and motor running in the wrong direction of rotation
Damage to the bearing and shaft seal!
▷ Pay attention to the rotation arrow on the drive end bearing housing.
▷ The direction of rotation of the drive must correspond to the direction
indicated in the general arrangement drawing.
If the pump set is driven by an electric motor, the direction of rotation of the motor
must be checked prior to commissioning/start-up.
Prerequisites
▪ Check the direction of rotation prior to the final assembly of the coupling (motor
alone is running).
▪ Observe the manufacturer’s documentation.
▪ The electric motor is provided with a lubricant.
6.2.6.1 Checking the direction of rotation with a phase-sequence indicator
The direction of rotation of the motor can be checked by means of an
electromagnetic phase-sequence indicator.
6.2.6.2 Checking the direction of rotation without phase-sequence indicator
DANGER
Mistake in the electrical connections
Danger of death from electric shock!
Short circuit, motor damage or pump is running in the wrong direction!
▷ Mark the connections in the terminal box.
WARNING
Starting of the motor for checking the direction of rotation
Risk of injury due to contact with unprotected or rotating parts or parts flying off!
▷ Remove or fasten any movable parts on the motor shaft.
▷
Never touch any unprotected, rotating parts.