SCHMITT SMP 150 PP, Оригинальное руководство по эксплуатации

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Troubleshooting
Fault number
1 2 3 4 5 6 7 8 9
Cause Remedy
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X
–
X
–
X
– –
X Temperature of fluid is too high: pump is
cavitating Increase pump inlet pressure.
Lower temperature.
Contact the manufacturer.
–
X
–
X
– – –
X X
Viscosity or specific gravity of the pumped
liquid outside the range specified for the
pump Consult the manufacturer.
–
X
–
X
– – – –
X Geodetic differential head and/or pipe flow
resistances too high Remove sediments from the pump
and/or pressure pipe.
Install a larger impeller and consult the
manufacturer.
Reduce the system pressure.
–
X
– –
X X
– – –
Pressure-side fitting not opened wide
enough Open the pressure-side fitting.
– –
X X
–
X
–
X
–
Pressure-side fitting opened too wide Throttle down at the pressure-side
fitting.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
– –
X
–
X
– – – –
Viscosity lower than expected Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
– –
X
–
X X
–
X
–
Motor speed too high Compare the required motor speed with
the specifications on the pump type
plate. Replace the motor if necessary.
Reduce the motor speed if speed
control is available.
– –
X
–
X X
–
X
–
Impeller diameter too large Throttle down the flow rate at the
pressure-side fitting. Observe the
minimum flow rate.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
– –
X
– –
X
–
X
–
Geodetic differential head, pipe flow
resistances and/or other resistances lower
than specified Throttle down the flow rate at the
pressure-side fitting. Observe the
minimum flow rate.
Machine the impeller down. Consult the
manufacturer and adjust the impeller
diameter.
– – – – –
X X X
–
Pump distorted Check the pipe connections and pump
attachment.
– – – – –
X
– – –
Pipes and fittings blocked
Disassemble and clean the pipes and
fittings.
– – – – –
X
–
X
–
Plain bearing faulty Change the plain bearing
( → 7.2.2 Check the plain bearings and
replace them , Page 18).
– – – – – –
X
– –
Connecting bolts not correctly tightened Tighten the connecting bolts.
– – – – – –
X
– –
Faulty housing seal Replace the housing seal.
Tab. 7 Troubleshooting list
11335/0320 SMP 25