
BA 5846 en 05/2015
Measures
Remarks
Periods
Check shrink disk
See operating instructions of the shrink disk.
Check friction linings
of torque-limiting backstop
Every 12 months
See item 10.2.5.
Inspection of the gear unit
Every 2 years
See item 10.4.
DANGER
Electrostatic discharge
Danger to life through ignition of any potentially explosive atmosphere through electrostatic discharge.
The coating must not carry an electrostatic charge.
The operator must ensure that highly effective mechanisms which can set up a charge in the coating are
safely avoided.
10.1.1
General service lives of oils
According to the oil manufacturers, the following are the expected periods during which the oils can be
used without undergoing any significant change in quality. They are calculated on the basis of an average
oil temperature of 80 °C:
─ for mineral oils, biodegradable oils and physiologically safe oils (synthetic esters):
10 000 operating hours or maximally 2 years. Does not apply to natural esters such as rape seed
oils.
─ for synthetic oils, polyαolefins and polyglycols: 20 000 operating hours or maximally 4 years.
Note
The actual service lives may differ. The general rule is that an increase in temperature of 10 K will halve
the service life and a temperature decrease of 10 K will approximately double the service life.
10.2
Maintenance and repair work
10.2.1
Examine water content of oil, conduct oil analyses
Detailed information about examining the oil for water content or conducting oil analyses is obtainable from
your lubricant manufacturer or the Siemens customer service.
─ For reference purposes, a fresh sample of the operating lubricating oil used must be sent with the
usedoil sample to the analysing institute for analysis.
─ The oil sample must be taken downstream of the filter of the oilsupply system while the system is
running. A suitable connection point is normally located upstream of the gearunit entry
(e.g. oildrain cock in the pressure line).
─ A special sample container should be filled with the specified quantity of oil.
If there is no such sample container available, at least one litre of oil must be put in a
clean
,
transportworthy, sealable vessel.