Scrub the rotor’s tube cavities with a stiff test tube brush
that has end bristles and a non-metallic tip. Dry each part,
after cleaning, with a clean, absorbent towel.
If glass breakage occurs, remove all broken pieces
immediately. If breakage recurs, replace all adapters and
cushions. Particles of broken glass embed in the plastic or
rubber accessories. Glass particles can come in contact
with new glass tubes, creating pressure points that may
result in breakage recurring. Glass particles, in the
chamber, grind to a fine gray dust, during centrifugation.
This dust can coat the inside of the centrifuge.
Corrosion
The manufacturer finishes the rotors and
structural accessories to give maximum resistance to
corrosion. To maximize the life of the unit, continually
inspect the rotor cavities for corrosion, especially if you use
chloride ion solutions, such as sodium chloride (saline),
and sodium hypochlorite (household bleach), because these
solutions attack most metals. Clean the rotor, rotor
chamber, and accessories (particularly the sample
compartments and bucket cups) thoroughly, after each
exposure. Inspect all surfaces, under bright light, for
corrosion. Be aware that small crevices grow deeper,
eventually resulting in system failure.
If you see any corrosion, remove it immediately, using the
following procedure:
1.
Follow the cleaning procedure, at the start of this
section.
2.
Soak the product in mild hand dish washing detergent,
and scrub the product thoroughly with a stiff test tube
brush. The brush should have end bristles and a non-
metallic tip.
3.
Soak the product, again, in clear warm water, for a
minimum of an hour.
4.
Rinse the product in warm water, then in distilled
water.
5.
Dry the product, thoroughly, with a clean, absorbent
cloth.
Caution:
If this procedure does not remove the corrosion,
discontinue use of the product.
MARATHON Series Operation Manual
37
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