861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 207/214
Servicing
41.2 Procedure for bolted joints and seals
Please observe the following for the maintenance of switchgear parts with bolted joints:
➭ Always replace the retaining elements on loosened bolted joints.
Procedure for maintenance of switchgear parts with seals:
➭ Always replace removed toroidal sealing rings (O-rings) by new ones. Procure the toroidal
sealing rings from the regional Siemens representative.
➭ Clean the sealing surfaces and grooves in the flanges with a lint-free cloth.
➭ Check the sealing surfaces before installation.
➭ Grease the toroidal sealing rings and place them in the grooves of the flanges.
➭ If required, place desiccant bags in the cover.
➭ Mount the cover.
➭ Fasten the flanges crosswise using the hexagon head bolts M8 and new retaining elements.
Tightening torque: 20 Nm.
41.3 Cleaning agents and cleaning aids
41.4 Lubricants
INFORMATION
For protection of personnel and environment:
➭ Read the instructions for use of cleaning agents and aids carefully.
➭ Observe the safety instructions of the cleaning agents.
Activity Cleaning agents or aids
Cleaning the front covers, cast-resin
components, instrument transformers
Mild, customary household cleaner for general degreasing
work and cleaning work (solvent-free)
Cleaning electrostatically stressed insulation
(e.g. epoxy resin)
Dry wiping cloths; plastic cleaner containing alcohol
if there is a lot of dirt
Applying and wiping off liquid cleaning agent
(single use)
Lint-free cleaning paper
Removing dust Brush
Damp cleaning, drying Lint-free wiping cloths
Suction of drilling chips, construction waste, dust Vacuum cleaner with plastic tip for sensitive components
Designation Manufacturer Application Remark
Polylub GLY 801 Klüber Mounting paste for flanges with
toroidal sealing rings
No lubricating effect
Barrierta GTE 403 Klüber Contact lubricating paste for contact blades and
contacts of the three-position disconnector
Observe the designation "GTE 403" in order to
avoid mistakes with other Barrierta products
Longtherm 2+ Molykote Lubricating paste for bearings of
the operating linkage
Not suitable for greasing points on
the circuit-breaker operating mechanism
Cold cleaner Haku 1025-975 Kluthe Degreasing and cleaning paste for
sealing surfaces of flanges
ISOFLEX TOPAS L 32 Klüber Lubricating paste for bearings of
the circuit-breaker operating mechanism
TELLUS OIL 32 Shell Lubricating paste for bearings of
the circuit-breaker operating mechanism
KORASILON paste AA-S 250 Obermeier Mounting paste for silicone adapter and
inside-cone cast-resin bush to be used for
instrument transformer installation
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