Siemens Flender H2NV Series - Change Oil

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BA 5060 EN 04/2011
10.2.2 Change oil
As an alternative to the oilchange intervals indicated in table 13 (see item 10.1) it is possible to have an
oil sample tested at regular intervals by the Technical Service of the relevant oil company and to have it
released for further use.
If further usability has been confirmed, no oil change will be necessary.
Please observe the separately attached instructions BA 7300.
• The instructions in item 7.1 must be observed!
When changing the oil, always refill the gear unit with the same type of oil. Never mix
different types of oil and/or oils made by different manufacturers. Never mix synthetic
oils with mineralbased oils or with other synthetic oils. When changing to any
different oil type, the gear unit must be flushed thoroughly using the new oil type.
When changing the oil, the housing and the oilsupply system must be flushed with oil to
remove sludge, metal particles and oil residue. Use the same type of oil as is used for normal
operation. Highviscosity oils must be heated beforehand using suitable means. Ensure that
all residues have been removed before filling with fresh oil.
Drain the oil while the gear unit is still warm, i.e. immediately after shutting down the machinery.
• Stop the gear unit by switching off the drive assembly. In addition the gear unit must be secured to the
fan at the output side in such a manner that the fan cannot drive the gear unit.
Secure the drive unit to prevent it from being started up unintentionally.
Attach a warning notice to the start switch.