21
Inspection of Action
Cable entry Make sure that the cable entry is tight.
If the cable entry leaks:
— check that the entry is tightened and forms an effective seal.
— cut a piece of the cable off so that the seal sleeves seals onto a new
position on the cable.
— replace the seal sleeves.
— check that the gasket, seal sleeves and the washers, conform to the outside
diameter of the cable.
Cable Replace the cable if the outer sheath is damaged.
Make sure that the cables do not have any sharp bends and are not pinched.
Starter equipment If the starter equipment is faulty, contact an electrician.
Monitoring equipment Follow the instructions for monitoring equipment.
(should be checked often) Check:
— signals and tripping function.
— that relays, lamps, fuses and connections are intact.
Replace defective equipment.
Rotation direction of Transpose two phase leads if the propeller does not rotate clockwise as viewed
mixer (requires voltage) from the motor side. Rotation in the wrong direction reduces the capacity of the
mixer and the motor may be overloaded. Check the direction of rotation every
time the mixer is reconnected.
Insulation resistance Use insulation tester. With a 1000 V-DC megger the insulation between the
phases
in the stator and between any phase and earth (ground) should not be less than 1 MΩ.
Liquid in the stator casing WARNING. If there has been leakage, the stator casing may be under pressure.
Hold a rag over the inspection screw to prevent splatter. See “Safety precautions”
for additional information.
Only Ex-approved machines; remove the screw and the angle bracket.
Remove the counter socket screw marked “INSP” and the O-ring. Remove the
inspection plug and the O-ring. Be careful not to damage the O-ring.
Tilt the machine so that any liquid in the stator casing can run out through the hole.
If there is liquid in the stator casing:
— check that the inspection plug is sufficiently tight.
— check if the cable entry is leaking.
— check if there is water in oil.
Check stator inspection plug again after one week. If the stator casing contains
liquid again, the fault may be:
— that the inner seal is damaged.
Contact a Flygt service shop.
Inspection
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