Laboratory Centrifuge Sigma 2-6
8 Maintenance and service
Version 04/2007, Rev. 2.10 of 06/11/2015 • sb
43
Translation of the original operating manual, part no. 07044
Pos: 166 /10 0 Sigm a/10 0 BA Z entrif uge n Sigm a (Sta nda rd mod ule)/ 080 W art ung und Inst andh altun g08 0-0 010 -00 30 Roto r, Bec her und Vielfacht rä ger (au ße r Basic) @ 2 8\mo d_1 405 320 621 063 _68. docx @ 19 487 3 @ 3 @ 1
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.
• Grease the rotor tie-down screw after cleaning with grease for load
bearing bolts (part no. 70284) and spread the grease with a cloth.
Pos: 167 /01 0 Univ ersal mod ule/L eerz eile @ 0\m od_ 120 211 624 450 0_0. docx @ 11 4 @ @ 1
Pos: 168 /10 0 Sigm a/10 0 BA Z entrif uge n Sigm a (Sta nda rd mod ule)/ 080 W art ung und Inst andh altun g08 0-0 010 -00 40 Tr agb olzen @ 2 8\m od_1 405 320 624 792 _68. docx @ 19 491 5 @ 3 @ 1
8.1.4 Load bearing bolts
Only greased load bearing bolts ensure the even swinging of the buckets
and, therefore, the quiet run of the centrifuge. Non-greased bolts can lead
to a system shut-down due to imbalances.
Apply a small quantity of grease (part no. 70284) to the load bearing bolts
of the rotor and buckets after each cleaning.
Pos: 169 /01 0 Univ ersal mod ule/Seit enwec hsel @ 0\m od_ 120 211 624 4312 _0. docx @ 10 5 @ @ 1
