Vogelsang VX100Q - 6 Start-up; 6.1 Check list before start-up

Rotary lobe pump
Operating instructions
VX100Q/VX136Q/VX186Q, VX136QD/VX186QD, VX136QDM2/VX186QDM2
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6 Start-up
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Personnel for start-up and operation
We recommend starting up the pump in the presence of persons who are responsible for further operation of
the machine.
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6.1 Check list before start-up
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 Is the coupling if present correctly aligned?
 Are the cardan shafts, if present, correctly aligned?
 Is the belt tension OK?
 Are the optional buffer chamber assemblies correctly installed? Are they correctly adjusted?
Is the buffer chamber pressure OK?
 Are the type of oil and oil level in the gearbox of the pump OK?
 Is the buffer fluid or quenching fluid OK? Is the fluid level in the buffer chamber OK?
 If equipped with a grease nipple, has the sealing prechamber been greased?
 Have all safety devices been installed and their proper functioning ensured?
 Is the motor connected correctly to the power supply (see documents provided by the motor
manufacturer)?
 Star or delta connection, voltage, frequency (see name plate and inside of terminal box)?
 Motor protection ensured, e.g., by a circuit breaker?
For star-delta starting, if present, a short switching time should be set.
A short start ramp should be set for the soft starter, if present.
 Is the variable-frequency drive/soft starter, if present, designed and configured correctly?
Equipment should be suitable for heavy starting
 Is the motor hydraulically correctly connected?
 Are safety device or repair switch easy to reach?
 Is the direction of flow OK? Check the pump's direction of rotation.
 Is the pipe system sealed and free of leakage?
 Is free flow within the pipe system ensured?
Positive displacement pumps may never be operated in a sealed pipe.
 Are the drain cocks closed, and is the pump filled with fluid?
 Put the pump into operation and check inlet and outlet pressure, speed and capacity.
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