Service of the...
Action
Cable
1. If the outer jacket is damaged, replace the cable.
2. Check that the cables do not have any sharp bends and are not
pinched.
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.
Stator housing
1. Drain all liquid, if any.
2. Check the resistance of the leakage sensor.
Normal value approx.1500 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.
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.
Oil housing
Fill with new oil, if necessary.
Terminal block/closed end splice Check that the connections are properly tightened.
Thermal contacts
Check the resistance of the leakage sensor.
Normally closed circuit; interval 0–1 ohm.
Voltage and amperage
Check the running values.
Major service
For a major service, take this action, in addition to the tasks listed under intermediate service.
Service of the...
Action
Support and main bearing
Replace the bearings with new bearings.
Mechanical seal
Replace with new seal units.
Service in case of alarm
For information about indication values for sensors, see
.
Alarm source
Action
CLS
Check for water in the oil in the oil housing. If the oil contains to
much water:
1. Drain the oil and water.
2. Replace with new oil.
Maintenance (Continued)
58
Flygt 3102 Service and Repair Instructions
Содержание Flygt 3102
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