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Maintenance
9.2 Corrective Maintenance
3. Warm up the labyrinth sealing ring. Push the labyrinth sealing ring to approx. 3 mm before
4. Locate the labyrinth sealing ring in position by screwing the set screws in. Check that the tips
9.2.5
Top enclosure
Note
Removing the air-water radiator
The air-water radiator is very heavy. To make removal of the top enclosure easier, remove it
and then refit it after the operation is complete.
9.2.5.1
Removing and installing the air-to-water-cooler
Disassembly
1. Please observe the instructions of the heat exchanger manufacturer.
2. Shut off the feed and return pipes and use the discharge device to empty the heat
3. Undo the water lines and the connections for the leakage electrodes, flow meters, etc.,
4. Release the tensioning straps on the air-to-water heat exchanger.
5. Slide the heat exchanger slightly out of the top enclosure. The lifting eyes are then
144
the bearing cover before the paint or adhesive cures on the set screws.
3 mm
Figure 9-5
Position the set screws for the labyrinth sealing ring on the outer bearing cover
of the set screws engage with the keyway with a short axial movement.
The correct axial position is obtained when the locating setscrews screwed into the keyway
engage.
Air-water heat exchanger instructions.
exchanger.
where fitted.
accessible; attach a lifting gear to them to pull the heat exchanger out further. Use suitable
strap guiding or spreading devices for this.
SIMOTICS FD 1LN1
Operating Instructions 01/2019
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