KSB Etachrom L, Installation & Operating Manual

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6 Commissioning/Start-up/Shutdown
34 of 70
Etachrom L
1212.8/19-EN
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/Start-up
6.1.1 Prerequisites for commissioning/start-up
Before commissioning/starting up the pump set, make sure that the following
conditions are met:
▪ The pump set has been mechanically connected as specified.
▪ The pump set has been properly connected to the power supply and is equipped
with all protection devices. (
ð Section 5.7, Page 32)
▪ The pump has been primed with the fluid to be handled. The pump has been
vented.
▪ The direction of rotation has been checked. ( ð Section 5.8, Page 33)
▪ All auxiliary connections required are connected and operational.
▪ The lubricants have been checked. (
ð
Section 6.1.2, Page 34)
▪
After prolonged shutdown of the pump (set), the activities required for returning
the equipment to service have been carried out. (
ð
Section 6.4, Page 39)
6.1.2 Filling in lubricants
Grease-lubricated bearings have been packed with grease at the factory.
6.1.3 Priming and venting the pump
DANGER
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
▷ The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems, must be filled with the fluid to be handled at all
times.
▷ Provide sufficient inlet pressure.
▷ Provide an appropriate monitoring system.
CAUTION
Increased wear due to dry running
Damage to the pump set!
▷
Never operate the pump set without liquid fill.
▷ Never close the shut-off element in the suction line and/or supply line during
pump operation.
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 feed lines (barrier fluid, flushing liquid, etc.), if any.
4. Open the shut-off element, if any, in the vacuum balance line and close the
vacuum-tight shut-off element, if any. ( ð Section 5.3.3, Page 27)
NOTE
For design-inherent reasons some unfilled volume in the hydraulic system cannot be
excluded after the pump has been primed for commissioning/start-up. However,
once the motor is started up the pumping effect will immediately fill this volume
with the fluid handled.