7 Servicing/Maintenance
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Multi Eco
A regular maintenance schedule will help avoid expensive repairs and contribute to
trouble-free, reliable operation of the pump, pump set and pump parts with a
minimum of servicing/maintenance expenditure and work.
7.2 Drainage/cleaning
WARNING
Fluids, consumables and supplies which are hot and/or pose a health hazard
Hazard to persons and the environment!
▷
Collect and properly dispose of flushing fluid and any residues of the fluid
handled.
▷
Wear safety clothing and a protective mask if required.
▷
Observe all legal regulations on the disposal of fluids posing a health hazard.
1.
For draining the fluid handled use the pump connections or a valve for residual
drainage, if fitted.
2.
Always flush the pump if it has been used for handling harmful, explosive and
hot fluids or other fluids posing a risk.
Always flush and clean the pump before transporting it to the workshop.
Provide a certificate of decontamination for the pump.
7.3 Inspection work
7.3.1 Cleaning the suction strainer
The suction strainer should be cleaned regularly.
1.
Disconnect the power supply (at the motor).
2.
Open a consumer installation on the pump's discharge side to reduce the
pressure in the piping.
3.
Disconnect and remove all auxiliary pipework.
4.
Remove filter and clean.
5.
Re-install the filter in the piping.
7.3.2 Checking the pre-charge pressure of the accumulator (Multi Eco Top only)
Check the pre-charge pressure of the accumulator once a year.
▪
Recommended pressure:
0.3 bar below the pump's start-up pressure.
▪
Pre-charged at the factory:
The accumulator has been pre-charged (with air) at
the factory to a pre-charge pressure of 1.2 bar.
1.
Disconnect the power supply (at the motor).
2.
Open a consumer installation on the pump's discharge side to reduce the
pressure in the piping.
3.
Unscrew the protective cap of the accumulator valve and check the pre-charge
pressure with the aid of a tyre pressure gauge.
4.
Add pressure as required.
7.3.3 Checking the automatic devices for starting and stopping the pump
NOTE
KSB recommends to regularly check the automatic devices for starting and stopping
the pump to prevent any risk of dry running.
