Miele PG 8593 Operating Instructions Manual page 126

Maintenance
126
Use a pointed object to push particles into the spray arm.
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Rinse the spray arm thoroughly under running water.
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 Do not allow any magnetic objects or load items to attach to the
magnets on the spray arms.
Any metallic objects on the magnets can cause a false reading of
spray arm rotation.
Remove all metal objects from the magnets.
Check the spray arm bearings for visible signs of wear.
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Visible wear on the bearings can adversely affect the long-term
functioning of the spray arms.
In this case, contact the Miele Customer Service Department.
Replace the spray arms after cleaning.
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Make sure the spray arms can rotate easily after they have been
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fitted.
The spray arms and baskets each have a number e.g. 03, which is
also embossed on the water supply pipes near the bayonet fittings.
When refitting, ensure that the numbers on the spray arms
correspond with the numbers on the water supply pipes.