Annovi Reverberi SJS, Инструкция по эксплуатации

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English Use and Installation
31
8 TROUBLESHOOTING
The information provided is intended to provide guidance on how to deal with malfunctions which may occur
during use.
Some of these procedures may be carried out by skilled staff, while others have to be performed at specialised
service centres since they require the use of specific equipment as well as detailed knowledge of repair opera-
tions.
Problem Cause Remedy
Pump does not reach the
specified pressures
Pump sucking in air
Restore the tightness of the
intake line
Intake flow rate insufficient
Increase the size of the intake
lines
Remove any kinks from the pipes
Increase the filter capacity or
clean the filter cartridge
Increase the rpm to the rated
speed
Worn intake and delivery valves Change the valves (1)
By-pass valve seat worn Replace the valve (1)
Worn gaskets Replace the gaskets (1)
Unsuitable, worn nozzle Replace nozzle
Irregular variations in
pressure
Worn intake and delivery valves Change the valves (1)
Valves blocked by dirt Clean the valves (1)
Air being sucked into system
Restore the tightness of the
intake line connections
Worn gaskets Replace the gaskets (1)
Vibrations on pipes
Valves jammed Change the valves (1)
By-pass valve malfunction Replace the by-pass valve
Pump sucking in air
Restore the tightness of the
intake line
Pressure drop
Nozzle worn Replace nozzle
Worn intake and/or delivery
valves
Change the valves (1)
Valves blocked by dirt Clean the valves (1)
By-pass valve seat worn Replace the valve(1)
Worn gaskets Replace the gaskets (1)
(1) Operations which must be carried out at an authorised service centre