5 Installation at Site
30 of 72
Sewatec (60 Hz)
5.10 Checking the direction of rotation
DANGER
Temperature increase resulting from contact between rotating and stationary
components
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.
WARNING
Hands inside the pump casing
Risk of injuries, damage to the pump!
▷
Never insert your hands or any other objects into the pump if the pump has not
been de-energized and secured against unintentional start-up.
CAUTION
Incorrect direction of rotation of pump with non-reversible mechanical seal
Damage to the mechanical seal and leakage!
▷
Separate the pump from the motor to check the direction of rotation.
CAUTION
Drive and pump running in the wrong direction of rotation
Damage to the pump!
▷
Refer to the arrow indicating the direction of rotation on the pump.
▷
Check the direction of rotation. If required, check the electrical connection and
correct the direction of rotation.
The correct direction or rotation of the motor and pump is clockwise (seen from the
motor end).
1.
Start the motor and stop it again immediately to determine the motor's
direction of rotation.
2.
Check the direction of rotation.
The motor's direction of rotation must match the arrow indicating the direction
of rotation on the pump.
3.
If the impeller rotates in the wrong direction of rotation, check and correct the
electrical connection of the motor and the control system, if applicable.
5.11 Priming and venting the pump
DANGER
Shaft seal failure caused by insufficient lubrication
Hot or toxic fluid could escape!
Damage to the pump!
▷
Before starting up the pump set, vent the pump and suction line and prime
both with the fluid to be handled.
1.
Vent the pump and suction line and prime both with the fluid to be handled.
2.
Fully open the shut-off element in the suction line.
3.
Fully open all auxiliary connections (barrier fluid, flushing liquid, etc).
