Changing Oil - Siemens FLENDER PLANUREX 2 PBUC Series Assembly And Operating Instructions Manual

10.2.2 Changing oil

As an alternative to the oil-change intervals indicated in Table 12 (see item 10.1) it is possible to have the
oil sample tested at regular intervals by the Technical Service of the relevant oil company and to have it
released for further use.
If re-usability has been confirmed, no oil change will be necessary.
Please observe the separately attached operating instructions BA 7300.
• The instructions in item 7.1 must be observed!
• Close the stop valves in the coolant in­ and outflow pipes (for gear units with water oil­cooling system).
• Drain the oil while the gear unit is still warm, i.e. immediately after shutting down the machinery.
When changing the oil, always re­fill the gear unit with the same type of oil. Never mix
different types of oil and/or oils made by different manufacturers. Polyglycol­based
synthetic oils in particular must not be mixed with PAO­based synthetic or mineral oils.
If changing to a different grade or make of oil, the gear unit must, if necessary, be
flushed out with the new oil grade. Flushing is not necessary, if the new service oil is
fully compatible with the old service oil in all respects. Compatibility must be
confirmed by the oil supplier. If there is a change to another oil grade or make,
Siemens recommends flushing out the gear unit with the new grade of service oil.
When changing the oil, the housing and the oil­supply system, if available, 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. High­viscosity oils must be heated beforehand using suitable means.
Ensure that all residues have been removed before filling with fresh oil.
• Place a suitable container under the oil-drain plug of the gear­unit housing.
• Unscrew the air filter and/or breather screw from the housing top.
• Unscrew the oil-drain plug and allow the oil to drain into the container.
There is a danger of scalding from the hot oil emerging from the housing.
Wear protective gloves!
Remove any oil spillage immediately with an oil­binding agent.
• Clean the permanent magnet of the oil-drain plug thoroughly.
Check the condition of the sealing ring (the sealing ring is vulcanised onto the oil drain plug).
If necessary, use a new oil-drain plug.
• Screw in the oil-drain plug.
• Unscrew oil­filler screw.
Check the condition of the sealing ring (the sealing ring is vulcanised onto the oil­filler plug);
if necessary, use a new oil­filler plug.
• Fill with lubricant according to item 7.2.
• Screw in oil‐filler plug.
BA 9213 en 03/2012
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