Pump runs but does not deliver rated capacity, Servicing your submersible pump, Maintaining your pump – BJM Pumps SX75CSSF-575T User Manual
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5. Float switch tangled/obstructed. Clean and free float switch from obstruction.
6. Float switch defective. Replace float switch.
PUMP RUNS BUT DOES NOT DELIVER RATED CAPACITY
1. Discharge line clogged, restricted or hose kinked. Check discharge hose/pipe.
2. Worn impeller and/or suction cover. Inspect and replace as necessary.
3. Pump overloaded due to liquid pumped being too thick.
4. Pumping air. Check liquid level and position of pump.
5. Excessive voltage drops due to long cables.
6. Three phase only; pump running backwards, check rotation.
SERVICING YOUR SUBMERSIBLE PUMP
Pump should be disconnected from the electric power supply before proceeding to do any
service or maintenance.
To service or repair your pump, please contact your local BJM Pumps distributor. Service
should only be performed by a qualified electrician.
The design of the “F” series high
temperature pump models is unique and requires specific knowledge to perform the proper
assembly. BJM Pumps recommends that all electrical service work be performed at the
factory, or by a factory trained and certified repair technician, to insure that the materials and
assembly methods meet BJM standards.
MAINTAINING YOUR PUMP
Pump should be disconnected from the electric power supply before proceeding to do
any service or maintenance.
Pump should be inspected at regular intervals.
More frequent inspections are required if the pump is used in a harsh environment.
Preventative maintenance should be performed to reduce the chance of premature
failure.
Worn impellers and lip seals should be replaced.
Cut or cracked power cords must be replaced. (Never operate a pump with a cut,
cracked or damaged power cord.)
Seal oil should be checked once per year.
Maintenance should always be done when taking a pump out of service before storage.
1) Clean pump of dirt and other build up.
2) Check condition of oil around the shaft seals.
3) Check hydraulic parts: check for wear.
4) Inspect power cable. Make sure that it is free of nicks or cuts.