Table of Contents Page 3 1 Table of Contents Table of Contents........3 Assembly ..........14 Connector for aerosol outflows... 14 Information for declaration of EU Rotary joints and spindles....16 conformity and manufacturer's Compressed air connection....16 declaration..........4 10 Adjusting the parameters.......
EU directive 89/336/EEC 98/37/EU. must only be used in reference to the EU SKF products must only be used in Remarks accordance with regulations and requirements. The use or commissioning of (a) This declaration certifies the compliance...
UBRI Please observe the following symbol in the you should consult us about this first. instructions, which brings attention to particular All products manufactured by SKF are not situations: permitted for use with hot gases, liquefied ® The SKF MQL system L...
Unsuitable lubricants can result in a immediately. Contact a SKF service location for in observance of the operating instructions and failure of the lubrication system and this.
The applying of lubricants or substances with procedures such as repairs, part replacements, Repair tasks must only be performed the SKF MQL system other than those approved etc. must only be performed by trained and on the MQL system by technical by SKF is not permitted.
UBRI Upon receiving the delivery please check the and physical properties that are specially approved in writing by SKF with respect to the goods for any possible damage and ensure that attuned to the high demands of the MQL device compatibility and transportability.
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Lubricants Page 9 Table 1. Recommended lubricants Description Composition Properties Range of application LubriOil Fatty acid ester with additives Viscosity: 47 mm²/s Universal applications at 40°C Density: 0.92 g/cm³ at 20°C LubriFluid F100 Synthetic polyol ester with natural fatty Viscosity: 25 mm²/s Especially for small tools and lubricating tasks oil derivative base with anti-oxidizing at 40°C...
Aerosol mechanism of action UBRI ® Vario. UBRI (Schematic illustration, subject to technical ® The SKF MQL system L Vario changes) UBRI described here with respect to the size and Principle of minimal quantity distribution of the lubricant droplet generates a Aerosol outlets (...
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Structure and function Page 11 9(4x) üb erfüllt - ov er fille d v oll - full up Reserve - reserve leer - empty...
Structure and function Page 12 8.3.4 Secondary air valve (no. 8) Structure of the system The secondary air valve dilutes the aerosol with ® The MQL system L Vario is equipped additional air. This guarantees a sufficient flow UBRI with the following valves, which serve the rate of the aerosol.
Structure and function Page 13 Display and setting of the lubricant flow rate The lubricant flow rate is indicated by a flowmeter with flat, which is attached to the side of the aerosol container. The level of the float in the glass pipe shows the flow rate of the particular lubricant.
Assembly Page 14 Connector for aerosol outflows 9 Assembly ® The MQL system L Vario is equipped UBRI The scope of delivery of the MQL system with three aerosol outlets (no. 1, Fig. 1), which ® Vario includes a mounting bracket, are set up as a plug-and-socket connection for UBRI which is attached to the rear side of the aerosol...
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Assembly Page 15 The lubricant supply should not exhibit any The main aerosol line should exhibit as few The aerosol supply for spindles or rotating significant changes to the cross section, any cross-section alterations as possible. If cross- parts should occur in an axial direction as concentric obstructions or sharp kinks section alterations are unavoidable, the...
Assembly Page 16 Table 2. Compressed air requirements Rotary joints and spindles Compressed air connection Requirements Values Only rotary joints must be used that Before connecting your MQL system are constructed for dry running. to the compressed air supply, make Maximum primary pressure in 10 bar sure that the main air valve is closed.
Adjusting the parameters Page 17 10 Adjusting the parameters Set the air valve to 6 bar and the lubricant 10.1 General 10.2 Effect of primary pressure flow rate to 100 %. With the spindle idle, ® The optimum adjustment of the MQL system The MQL system L Vario obtains the check whether the aerosol is able to flow...
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Adjusting the parameters Page 18 Move the tool with a horizontal feed of approx. 0.6 m/min. There should then be a closed film with a width of approximately twice the diameter of the tool visible on the panel. Adapt the aerosol mixture and the aerosol quantity to the processing procedure until the processing result satisfies your requirements.
Only lubricants supplied by SKF must Working with a system that is not in a be used. Please note that we provide Check that there is enough lubricant in the...
If the container is overfilled (above maximum fill each other if there is no explicit cleaning agents. approval from SKF. Otherwise, line), the excess lubricant must be drained. Otherwise, no aerosol can be generated (see damages may result and a For safety reasons, we recommend that you chapter “Draining lubricant”, page 20).
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Maintenance Page 21 If you accidentally fill the container with the wrong or with contaminated lubricant, the inside of the lubricant container must be cleaned. Contact us in any case if this happens. Never clean the interior of the MQL system yourself. The disassembly of the lubrication container or other parts of the MQL system is not permitted and renders...
Malfunction Possible cause Solution The following requirements must be satisfied for The system produces Use of lubricants not approved by SKF. Use only lubricants approved by SKF. trouble-free functioning of the MQL system: no aerosol. The system is defective or Contact our service department.
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Malfunctions Page 23 Continuation Table 3. Malfunctions and how to fix them Complaint Possible cause Solution No aerosol is applied The junctions between spindle and Use only the tool-receiving sockets to the tool. tool-receiving socket are unfavourable. suited for minimal quantity lubrication. The tool-receiving socket is not tight.
It is recommended that the lubricant be drained for extended shutdown periods. 14.2 Permanent shutdown If you want to shut down the MQL system permanently, please observe the legal regulations pertaining to the disposal of components containing lubricants. SKF will also dispose of systems for a fee.
Technical Data Page 25 16 Technical Data ® Table 4. Technical data for the system L Vario UBRI ® Description Unit Vario UBRI Housing Aerosol outlets above External dimensions H: 422, W: 235, D: 250 Enlarging the casing dimensions with protruding attachments (without H: 422, W: 235, D: 250 connections) Weight...
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