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OPERATING AND MAINTENANCE MANUAL
SUBMERSIBLE SEWAGE PUMP
4.Start the pump, and adjust flow and head by outlet valve to meet the pump's data.
5.If motor fails to start or does not deliver water, refer to our troubleshooting guide with the possible
problems and consequent actions to take. This information will be found on the next pages.
6.Turn off the outlet valve prior to turn off the pump power supply.
MAINTENANCE
1.Dry running would damage the mechanical seal beyond repair.
2.The pump should avoid frequent operation, and power switch should turn off when voltage change
suddenly.
3.To avoid the losses of head, it should not use the inlet valve to adjust the flow.
4.When the pumped water is disrupt or insufficient, please turn off the pump to avoid dry operation.
5.If there is any abnormal noise, the pump should be turned off for faultfinding.
6.Pump body should be drained during periods of low temperatures or long periods of inactivity, if this
inactivity last longer. Pump should be cleaned and kept in a dry and airy place.
7. This appliance is not intended for use by persons (including children) with reduced physical, sen-
sory or mental capabilities,or lack of experience and knowledge, unless they have been given supervi-
sion or instru tion concerning use of the appliance by a person responsible for their safety.
8.Children should be supervised to ensure that they do not play with the appliance.
TROUBLESHOOTING GUIDE
PROBLEMS
POSSIBLE CAUSES
1.The suction and discharge pipes circuit
1.The pump
and impeller blocked.
does not deli-
2.The suction connectors is air leaking.
ver any flow.
3.Water level is lower than required.
1.Impeller seriously damaged and
2.Insufficient
corrosive.
Flow
2.Seal Ring is damaged and corrosive.
3.Motor Speed is lower than the required.
1.Wrong Rotation.
2.NPSH because of high water tempera-
3.Losses of
ture.
Head
3.Impeller seriously damaged and corro-
sive.
1.Flow beyond the applicable scope.
4. Motor over-
2.There is mechanical wearing.
heating
3.The voltage is lower or higher than
standard or motor fan is damaged.
1.Motor bearing is damaged or lack
5. Pump leak
lubricating oil.
seriously
2.Vibration is caused by the unbalanced
ground.
1.Motor bearing is damaged or lack
6. Motor big
lubricating oil.
vibration, loud
2.Vibration is caused by the unbalanced
noise, bearing
ground.
become hot.
7. There is
1.Flow is beyond the applicable scope
noise
and cause the loss of head.
in Pump
2.Nut is loose.
All specifications change without prior notice.
www.proindecsa.com / proindecsa@proindecsa.com
SOLUTIONS
1.Clean pipes circuit and impeller.
2.Sealed the connecting surfaces.
3.Reinstall and lower the suction pipe.
1.Replace by new one.
2.Replace by new ring.
3.Make sure the voltage is normal.
1.Change motor wiring (3 phase motor).
2.Lower the liquids temperature.
3.Replace by new one.
1.Make sure the correct pump model was
chosen or adjust the outlet valve to make
the pump working around rated scope.
2.Check and erase the mechanical wearing.
1.Replace by new one.
2.Replace by new one.
1.Adjust motor is lined with the center of
pump, replace bearing or clean bearing and
add lubricant oil.
2.Level up the base, and fasten the bolt of
bracket.
1.Make sure the correct pump model was
chosen and turn off the outlet valve.
2.Fasten any possible nuts.
9
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