General Oil­service Lives; Description Of Maintenance And Repair Works; Examine Water Content Of Oil, Conduct Oil Analyses - Siemens Flender H2NV Series Assembly And Operating Instructions Manual

Measures
Clean the oil filter
Replace wet-air filter
Clean fan and gear unit
Type with oil-dam pipe: recharge
with grease
Refill Taconite seals with grease
Check the hose lines
Change the hose lines
Check tightness of fastening bolts
Replacing backstop
Inspection of the gear unit.
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 oil­service lives
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, biologically degradable oils and physiologically safe (synthetic esters) oils 2 years
or 10 000 operating hours (does not apply to natural esters, such as rape seed oils).
─ for poly-α-olefins and polyglycols, 4 years or 20 000 operating hours.
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

Description of maintenance and repair works

10.2.1 Examine water content of oil, conduct oil analyses

More information about examining the oil for water content or conducting oil analyses is obtainable from
your lubricant manufacturer or our customer service.
• For reference purposes, a fresh sample of the operating lubricating oil used must be sent with the used
oil sample to the analysing institute for analysis.
• The oil sample must be taken downstream of the filter of the oil­supply system while the gear unit is
running. A suitable connection point is normally located upstream of the gear unit input (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.
Periods
Simultaneously with oil change
As required
Depending on requirements,
at least every 2 years
Every 5000 operating hours
or at least every 10 months
Every 3000 operating hours
or at least every 6 months
Yearly
6 years from the manufacturing date
impressed
After approx. 400 operating hours,
thereafter every 2 years
Every 10 000 operating hours
Every 2 years
BA 5060 EN 04/2011
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Remarks
See item 10.2.3.
See item 10.2.4.
See item 10.2.5.
See item 10.2.6.
See item 10.2.7.
See item 10.2.8.
See item 10.2.8.
See item 10.2.10.
See item 5.7.
See item 10.4.