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8.1.3 Rotors, buckets and carriers
Rotors, buckets and carriers are produced with the highest precision, in
order to withstand the permanent high stress from high gravitational fields.
Chemical reactions as well as stress-corrosion (combination of oscillating
pressure and chemical reaction) can affect or destroy the metals. Barely
detectable cracks on the surface can expand and weaken the material
without any visible signs.
• Check the material regularly (at least once a month) for
– cracks
– visible damage of the surface
– pressure marks
– signs of corrosion
– other changes.
• Check the bores of the rotors and multiple carriers.
• Replace any damaged components immediately for your own safety.
• After every cleaning process, grease the rotor tie-down screw slightly
with a small amount of heavy-duty grease for load-bearing bolts (part
no. 71401) and distribute the grease with a cloth so that it forms a thin
layer.
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