Decomissioning And Disposal; Failures, Causes And Remedies; Spare Parts - SAER Elettropompe M Serie Manual De Empleo Y Mantenimiento

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ELETTROPOMPE
Before starting, prime the pump filling it with water via the hole in the loading plug in the upper part of the
pump casing.
After a period of time sufficient in order to reach the steady state, it shall be necessary to verify the following conditions:
lack of vibrations or of anomalous noises;lack of changes in the delivery;value of the absorbed current by the motor
not higher than the one indicated on the plate. In presence of one (or more) of the above mentioned conditions, it shall
be necessary to stop the pump and to find the cause.
If the electropump remains inactive at low temperatures or, at any rate, for a period exceeding three months,
it is a good idea to empty the pump attraverso l'apposito tappo.
7. Maintenance
The M series electric pumps can be considered free from routine maintenance. In case extraordinary maintenance is required,
get in touch with the SAER Technical Assistance. Do not modify the product without the necessary preventive authorization.
Before executing any operation, turn off the power and prevent it from being reconnected.
8.

Decomissioning and disposal

At the end of the operating life of the pump/electropump or any of its parts, it must be disposed of in observance of
current regulations. This is also valid for the liquid contents, with particular regard if classified toxic or harmful.
9.

Failures, causes and remedies

Failures Causes
Voltage does not get to the motor cable
The motor will not
start: no noise or
The fuses are burnt out
vibration
Motor cable broken
The motor has been connected wrongly
The motor will not
start: it is noisy and/or
The capacitori s broken (for single phase motor)
vibrates
The rotating member is jammed
The voltage is too high
The protection
devices trip
A cable is earthed or short-circuited
The winding is earthed
Cable terminals loose
The rotating member is jammed
Too much sand in the water
The pump has not been filled with water
Insufficient or zero
flow
The suction pipe is narrow or it is leaking
The foot valve is clogged
Impellers clogged
The level in the well drops more than expected
Wrong direction of rotation
Lower head than the
declared one
Leakage in delivery pipe
Internal members worn out
Air or gas in the water
The pump operates at too low head
The electric pump
operates irregurarly
Mechanical members worn out
and/or vibrates
The NPSH of the system is insufficient

10. Spare parts

Use only original spare parts. To order spare parts, refer to the catalogues or contact the SAER Technical Assistance
specifying the kind of pump, the serial number and the year of manufacture (all these data are to be found in the
identification plate).
This product is free from manufacturing defects.
8
Remedies
Check appliance and/or electricity line
Replace the fuses with new ones
Repair or replace the cable
Correct any wrong connection (Fig. 3)
Replace the capacitor
Dismantle and remove the cause
Call the electricity company
Repair or replace the cable
Dismantle the motor and replace the winding
Tighten all the terminals
Dismantle and remove the cause
Reduce the rate of flow with the delivery
gate valve
Fill the pump
Replace the damaged pipe or gland
Clean or replace the valve
Dismantle and overhaul
Check the capacity of the well
Change the direction of rotation
Replace the damaged pipe or gland
Dismantle and overhaul
Call the manufacturer
Regulate the gate valve on the delivery pipe
Dismantle and overhaul
Reduce the rate of flow
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