ITT Flygt 5150.350, Инструкция по установке, эксплуатации и обслуживанию

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Service item Action
Connection to power Check that the connections are properly tightened.
Electrical cabinets Check that they are clean and dry.
Impeller 1. Check the impeller clearance.
2. Adjust the impeller, if necessary.
Inspection chamber
2
1. Drain all liquid, if any.
2. Check the resistance of the leakage sensor.
Normal value approx.1200 ohms, alarm approx. 430 ohms.
Insulation 1. Check that the resistance between the earth (ground) and
phase lead is more than 5 megohms.
2. Conduct a phase-to-phase resistance check.
Junction box Check that it is clean and dry.
Level regulators Check the condition and functionality.
Lifting device Check that local safety regulations are followed.
Lifting handle
1. Check the screws.
2. Check the condition of the lifting handle.
3. Replace if necessary.
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 impeller rotation.
Seal housing
2
1. Fill with new coolant, if necessary.
2. Check that the freezing point is lower than -13°C (9°F).
Terminal board
Thermal contacts
Check the resistance of the leakage sensor.
Normally closed circuit; interval 0–1 ohm.
Thermistor Check the resistance is between 20–250 ohms and the measured
voltage is maximum 2 V DC.
Voltage and amperage Check the running values.
Major overhaul
For a major service, take this action, in addition to the tasks listed under intermediate service.
Service item Action
Support and main bearing Replace the bearings with new bearings.
Mechanical seal Replace with new seal units.
Service in case of alarm
2
Regardless of individual applications, the inspection chamber should not be inspected less frequently than the intervals for
normal applications and operating conditions at media (liquid) temperatures <40°C.
Maintenance (Continued)
38 Flygt 5150.350, 5150.360 Installation, Operation, and Maintenance Manual