Xylem FLYGT P7030 Series, Инструкция по установке, эксплуатации и обслуживанию

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Service item Action
Junction box 1. General:
Check that it is clean and dry.
If it is wet, then do the following:
a. Check the cable entry.
b. Replace the O-rings. New O-rings should be fitted to all O-
ring seal joints opened during inspection.
2. Check the resistance of the leakage sensor.
If the pump is connected to the MAS monitoring system, then it
is recommended that the sensors be checked in the MAS unit.
Otherwise, use a multimeter. Normal value approximately
1530 ohms, alarm approximately 330 ohms. For values, see
Sensors
on page 18.
3. Terminal board: Check that the connections are properly
tightened.
Level regulators Check the condition and functionality.
Lifting device Check that the local safety regulations are followed.
O-rings 1. Replace the oil plug O-rings.
2. Replace the O-rings at the entrance or junction cover.
3. Grease the new O-rings.
Overload protection and other
protections
Check the correct settings.
Personnel safety devices Check the guard rails, covers, and other protections.
Rotation direction Check the propeller rotation.
Seal housing Fill with new oil, if necessary.
Terminal board Check that the connections are properly secured.
Temperature sensors, MAS
monitoring system:
– Thermal contact
– Thermistor
– Pt100
If the pump is connected to the MAS monitoring system, then it is
recommended that the sensors be checked in the MAS unit.
Otherwise, use a multimeter.
Do not use a device applying a higher voltage than 2.5 V.
1. Disconnect the sensor leads.
2. Measure the resistance to check the status of the sensor and
leads according to values in
Sensors
on page 18. Make sure
to select values for the appropriate sensor, monitoring
equipment, and sensor combination.
3. Measure between each sensor lead to ground (earth) to
establish that the resistance is infinite (or at least several
Megaohms).
Thermal contacts, MiniCAS Normally closed circuit, interval 0–1 ohm.
Thermistor, MiniCAS Check the resistance is between 20–250 ohms and the measured
voltage is maximum 2 V DC.
Voltage and amperage Check the running values.
6.11.2 Major overhaul
For a major overhaul, take this action in addition to the tasks listed under Inspection.
Service item Action
Support and main bearing Replace the bearings with new bearings.
Mechanical seal Replace with new seal unit.
6.11.3 Service in case of alarm
6 Maintenance
78 P7030, P7035, P7040 Installation, Operation, and Maintenance Manual