Life Of Bearings; Operation Problems - FPZ SCL K05 Instrucciones

During work on the unit there are risks of injury due to shearing, crushing or entanglement!
Therefore it must be carried out by qualified personnel who handle and install the machine, taking the necessary safety measures and
following the instructions given in this manual.
For residual overpressure: possible release of process fluids with risk of injury to the skin and eyes;
For negative pressure: possible drawing in of hair and clothing.
Disassemble the machine only after closing and draining the system connected to it.
The machine must be completely vented, cleaned and rendered inert before being sent to a service centre.
For the particular construction and use of K-MS-MOR Atex 2G series machines it is advisable to contact the FPZ service
centre for this type of assistance.
If maintenance or repair is carried out at another repair centre, make sure to contact FPZ After-Sales Service for instructions and
information about the parts to be replaced.

14.3 LIFE OF BEARINGS

Consult the instruction manual of the electric motor for more information.

14.4 OPERATION PROBLEMS

Problem
The unit does not
start
Insufficient or no air
flow
Insufficient or no
differential pressure
Current absorption
higher than the
permissible value
High delivery air
temperature
Abnormal vibration
8
Divided as follows: F for functional fault and G for serious fault
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Danger due to residual negative pressure or overpressure!
Cause
F Incorrect electrical wiring.
F Unsuitable supply voltage.
G The impeller is stuck.
G The suction filter is clogged.
G Wrong frequency (for inverter powered units).
Profile of impeller blades modified (due to
G
deposits on the profile).
F Wrong rotation direction.
G Leak in the system
F Incorrect electrical wiring.
F Supply voltage drop.
G The suction filter is clogged.
G The unit has accumulated deposits inside.
The unit is operating at a pressure and/or
G
vacuum higher than the permissible value.
The unit is operating at a pressure/vacuum
G
higher than the permissible value.
G The suction filter is clogged.
G The unit has accumulated deposits inside.
G Suction and/or delivery pipes obstructed.
G Intake air temperature above 40°C (+104°F).
The impeller rubs against the casing:
- The unit is operating at a pressure/vacuum
G higher than the permissible value.
- Reduction of assembly play due to internal
deposits (dust, dirt, process residues, etc.).
G Worn bearing.
F Unit installation position unsuitable.
G The impeller is damaged.
Cure
Have the electrical connection checked by the
Technician, referring to the diagram in the terminal box.
Make sure the supply voltage, measured at the motor
terminals, matches the rated voltage +/-10%.
Have the unit repaired by FPZ After-Sales Service.
Have the cartridge cleaned or replaced by the Technician.
Correct the frequency.
Have the impeller checked by FPZ After-Sales Service
Have the rotation direction reversed by the Technician,
switching around the two power supply wires.
Find the leak and seal it.
Have the electrical connection checked by the
Technician, referring to the diagram in the terminal box.
Have the supply voltage at the terminals restored within
the permissible values by the Technician.
Have the cartridge cleaned or replaced by the Technician.
Have the unit cleaned inside by FPZ After-Sales Service.
Operate on the system and/or control valve to decrease
the pressure differentials.
Operate on the system and/or control valve to decrease
the pressure differentials.
Have the cartridge cleaned or replaced by the Technician.
Have the unit cleaned inside by FPZ After-Sales Service.
Have the obstructions removed by the Technician.
Use heat exchangers to reduce the intake air
temperature.
Operate on the system to decrease the pressure
differentials.
Have the unit cleaned inside by FPZ After-Sales Service.
Have the bearing replaced by FPZ After-Sales Service.
Have the units installed on structures that cannot transmit
or amplify the noise (tanks, metal plates, etc.) by the
Technician.
Have the impeller replaced by FPZ After-Sales Service.
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