Maintenance - FLOWTECH flowboost F.V Operation And Maintenance Manual

Maintenance

Before any operations it's necessary to disconnect the power supply. If required ask to an electrician or to an
expert technician.
Every maintenance operation, cleaning or reparation executed with the electrical system under voltage, it
could cause serious injuries to people.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
In case of extraordinary maintenance, or maintenance operations that require part-removing, the operator
must be a qualified technician able to read schemes and drawings. It is suggest to register all maintenance
operation executed.
During maintenance keep particular attention in order to avoid the introduction of small external parts that
could compromise the device safety.
It is forbidden to execute any operations with the direct use of hands. Use water-resistant, anti-cut gloves to
disassemble and clean the filter or in other particular cases.
Maintenance operations that are not described in this manual must be made only by special personnel
authorized by Flowtech.
Routine maintenance
Before every maintenance operations disconnect the power supply and make sure that the device could not
accidentally operate.
Under normal operating conditions the pump-motor unit will not require maintenance. Conduct routine
inspection on the pump and connected parts to check for a perfect seal.
Check the seal on the shaft from the outside through the coupling guard.
The special funnel-shaped upper cover is designed to contain any small initial leaks.
Keep the pump and surrounding part clean so as to be able to immediately detect any outward leakage.
Clean the filter in the suction pipe and/or foot valve at regular intervals; check performance and absorbed
current.
The ball bearings in the motor and the ball bearing in the pump have permanent lubrication.
No regreasing is necessary. See the operating instructions of the motor (if supplied).
Remove any excess grease expelled from the ball bearing after the first period of operation.
In the case of water containing chloride (chlorine or sea water) the risk of corrosion increases in stagnant
water conditions (also with an increase in temperature and decrease of pH value). In these cases, if the pump
remains inactive for long periods, it must be emptied completely.
For good measure, as for temporary operation with dirty liquids, run the pump briefly with clean water to
remove deposits.
Or, after draining, perform the washing operation, inserting clean water (at least 40 litres) into the filling hole (1)
on the delivery side and allowing it to come out of the draining hole (3) on the suction side (fig.4).
When the pump remains inactive it must be emptied completely if there is a risk of freezing.
Before starting the motor again fill the pump completely with liquid (see section 7.2.) and make sure the shaft
is not jammed by encrustation, sticking of the faces of the mechanical seal or other causes. In the event that
the shaft cannot be moved by hand, the pump has to be dismantled and cleaned.
Disconnect electrical power before any servicing operation and make sure the pump cannot be accidentally
switched on.
flowboost
F.V Pump Manual
15