- Mobil Flush 320 is a low-cost wind turbine gear flushing oil specifically designed for flushing / removing contaminants and ensuring long term performance of Mobil SHC Gear 320 WT during the oil change process - no matter the incumbent wind turbine gear oil in use.
Specification and Approvals
Property
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Grade
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ISO 320
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Kinematic Viscosity @ 100 C, mm2/s, ASTM D445
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29.6
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Pour Point, °C, ASTM D5950
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-30
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Flash Point, Cleveland Open Cup, °C, ASTM D92
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272
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Density @ 15.6 C, g/ml, ASTM D4052
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0.873
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Phosphorus, mass%, ASTM D4951
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390
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Kinematic Viscosity @ 40 C, mm2/s, ASTM D445
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335
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Viscosity Index, ASTM D2270
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121
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Applications
Mobil Flush 320 can be used as a flushing oil for wind turbine gearbox systems when the intention is to change any incumbent wind turbine gear oil to Mobil SHC™ Gear 320 WT.
Mobil Flush 320 can be used as a flushing oil for wind turbine gearbox systems to remove contaminants from an in-service gearbox or as a flushing oil during the installation or repair of a wind turbine gearbox.
Mobil Flush 320 is not designed to be a long-term gear oil replacement. It is meant to be used only as a flushing gear oil.
Even if compatibility between the incumbent oil and Mobil SHC™ Gear 320 WT has been deemed acceptable, it is highly recommended to flush the wind turbine gear oil system to ensure optimum performance. In case of incompatibility, flushing is mandatory.
In order to ensure Mobil SHC™ Gear 320 WT performance is optimized and its 10-year warranty is not impaired, a thorough changeover procedure should be followed. Essential steps are as follows:
Drain the incumbent oil
Clean the inside oil system including filter housing and oil cooler
Change out filters, fill with Mobil Flush 320 up to 60% of the oil system capacity
Run the wind turbine unloaded at high speed for 1-2 hours while oil temperature is ~60°C. Filter plugging must be closely monitored.
Drain the Mobil Flush 320 charge as thoroughly as possible and repeat previous 2 steps if deposits or contaminants are still visible.
Fill with the final Mobil SHC™ Gear 320 WT charge
For the detailed conversion protocol: visit Tech Topic "Wind Turbine Gear Oil Conversion Protocol".
The used Mobil Flush 320 charge may be reused for another wind turbine gearbox if cleanliness level is acceptable.
ExxonMobil has an extensive database of compatibility studies with competitive products, change out protocols, and other resources in order to support our customers with oil change outs.