Inspection. FLYGT 3153

Inspection

Maintenance

Service item

Cable

Connection to power

Electrical cabinets

Impeller

Inspection chamber

Insulation

Junction box

Level regulators

Lifting device

Lifting handle

O-rings

Overload protection and other protections

Personnel safety devices

Rotation direction

Seal housing

Terminal board

Thermal contacts

Thermistor

Voltage and amperage

Action

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.

Check that the connections are properly tightened.

Check that they are clean and dry.

1. Check the impeller clearance.

2. Adjust the impeller, if necessary.

1. Drain all liquid, if any.

2. Check the resistance of the leakage sensor.

Normal value approx.1200 ohms, alarm approx. 430 ohms.

Use a megger maximum 1000 V.

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.

Check that it is clean and dry.

Check the condition and functionality.

Check that local safety regulations are followed.

1. Check the screws.

2. Check the condition of the lifting handle.

3. Replace if necessary.

1. Replace the oil plug O-rings.

2. Replace the O-rings at the entrance or junction cover.

3. Grease the new O-rings.

Check the correct settings.

Check the guard rails, covers, and other protections.

Check the impeller rotation.

1. Fill with new coolant, if necessary.

2. Check that the freezing point is lower than -13°C (9°F).

Check that the connections are properly tightened.

Normally closed circuit; interval 0–1 ohm.

Check the resistance is between 20–250 ohms and the measured voltage is maximum 2 V DC.

Check the running values.

Flygt 3153 Installation, Operation, and Maintenance Manual 43