Franz Eisele u. Söhne GmbH & Co. KG
Page 27 of 41
7 Operation
Special dangers during pump operation:
•
The maximum possible discharge pressure of the pump must not
exceed the maximum permitted value of all subsequent system
components.
•
Always reckon with the possibility, that when mixing or pumping
substrates, gases with suffocating or explosive effect can be
released. It is therefore essential to ensure that there is sufficient
ventilation and/or extraction of fumes!
•
The installation location is to be selected, so that it is not possible
to reach into the intake area of the pump during operation.
•
With gas escape hole open, liquid can spray out through it during
operation.
Material damage to the submersible motor pump and system!
The wire cable and the electrical connection line must always be
tensioned. If the wire cable or the line is loose, these could become
tangled in the submersible motor pump and damage it as well as the
complete system.
7.1
Personnel Qualification
The operation may only be performed by suitably qualified personnel, taking into consideration the
safety instructions.
The operator may only execute or perform work on the machine, for which he has been trained,
instructed and authorised by the user.
7.2
Normal Operation
•
The product must only be started from the specified workplace.
•
During operation the operating personnel must only stand at the specified workplaces.
•
During operation no protective devices may be removed or put out of service.
•
Standing in the danger zone during operation is strictly forbidden!
•
The operating personnel must ensure that no unauthorised persons stand in the operating area.
•
After shutdown the operating personnel must wait until all moving parts have come to
a standstill!
•
The following control activities are to be performed at least once a day:
•
Visual inspection for obvious external damage
•
Check all lines for leaks
•
Check the function of all protective devices
•
With a change compared with normal operation (e.g. increased temperature, loud noises,
vibrations), the submersible motor pump is to be shut down and checked for damage. Foreign
objects in the pump medium (e.g. cords, ropes, plastic tapes) cause, for example, an imbalance
on the blade, which can lead to a higher bearing load, faster material fatigue and therefore
ultimately to a premature failure of the mechanical seal and bearing.
•
After prolonged stationary periods the ease of movement is to be checked by moving the pump
blade back and forth (pull out electrical plug beforehand). Slight grazing of the intake auger
(Type S) on the inlet nozzle is however not detrimental for the operation of the pump.
