Conservare il manuale per futuri riferimenti - Per maggiori informazioni visitare il sito
www.saerelettropompe.com
Keep the manual for future reference - For more informations visit
www.saerelettropompe.com
FAILURES OR
MALFUNCTIONS
ID
PROBABLE REASONS
REMEDY ACTIONS
! Insufficient
flow rate
>
Reasons already listed on previous
points
>
Consider points: from A.1 to A.7
B.1 >
Losses from the seals.
>
Replace the seals
B.2
>
Demaged impellers.
>
Replace the impeller.
B.3 >
Foot valve too slim
>
Replace the foot valve .
! Outlet
pressure too
low
>
Reasons already listed on previous
points
>
Consider points: A.1, A.3 ÷ A.7,B.2 ÷ B.3
C.1 >
Outlet line ostructions
>
Remove the ostructions
C.2 >
Pressure gauge wrong positioning
>
Position the outlet pressure gauge on the outlet and the inlet
pressure gauge on the inlet
! High
absorbtion
>
Reasons already listed on previous
points.
>
D.1 >
Usury or mechanical seizure
>
Check and, where necessary, replace seals, bearings and wear
rings.
D.2 >
Functioning out of performance
curves.
The head is lower than the minimum
head allowed
>
Act on the outlet regulation valve to increase the head and low the
flow rate.
D.3 >
Excessive speed of the motor speed
rotation.
>
Check the corrispondence between motor speed and pump. When
the motor is powered by inverter, low the frequency
D.4 >
Fluid density / viscosity higher then
of the contractual ones
>
Low the flow rate. Call the technical assistance
D.5 >
Motor problems
>
Refer to motor informations.
! Vibrations or
high noise
>
Reason already listed on previous
points.
>
Consider points: A3-A6,B1,B3,B4,D1,D2,D3,D4,D5
E.1 >
Pump, motor not properly setted
>
Check the tightening of all anchor bolts
E.2 >
Pipeline misaligned or imposed on
the pump
>
Support the pipes checking their alignment with the pump.
E.3 >
Damaged bearings
>
Replace the bearings
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
the motor, the serial number and the year of manufacture (all these data are to be found in the identification plate). This product is free from
the manufacturing defects.
