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R 5 Oxygen Oil-Lubricated Rotary Vane Vacuum Pumps RA 0160 D, RA 0202 D, RA 0250 D, RA 0302 D (Version intended for OEM only) Ateliers Busch S.A. Zone industrielle, 2906 Chevenez Switzerland 0870573103/-0001_en / Original instructions / Modifications reserved...
Safety Prior to handling the machine, this instruction manual should be read and understood. If anything needs to be clarified, please contact your Busch representative. Read this manual carefully before use and keep for future reference. This instruction manual remains valid as long as the customer does not change anything on the product.
(volume content greater than 21% and up to 100%). Conveying of other media leads to an increased thermal and/or mechanical load on the machine and is permissible only after a consultation with Busch. The machine is intended for the placement in a non-potentially explosive environment.
Transport | 3 2.3.4 Water-oil Heat Exchanger In case of unfavourable ambient conditions a water-oil heat exchanger can be provided. 2.3.5 Temperature Switch The temperature switch monitors the oil temperature of the machine. Depending on the oil type, the machine must be stopped when the oil reaches a certain temperature, see Oil [} 26].
4 | Storage Machine weight: see the technical data or the nameplate (NP) • Check the machine for transport damage. If the machine is secured to a base plate: • Remove the machine from the base plate. WARNING Lifting the machine using the motor eye bolt. Risk of severe injury! •...
Installation | 5 Installation WARNING Lack of oxygen regulation knowledge. Risk of fire! • Installation, commissioning and maintenance must only be carried out by qualified personnel who are informed about the applicable safety regulations and trained in the handling of oxygen. •...
Depending on the specific order, other connection dimensions may apply. If the machine is used as part of a vacuum system: • Busch recommends the installation of an isolation valve in order to prevent the oil from flowing back to the vacuum system.
Installation | 5 5.2.2 Discharge Connection CAUTION The discharge gas contains small quantities of oil. Risk to health! If air is discharged into rooms where persons are present: • Make sure that sufficient ventilation is provided. Connection size: – G2 Depending on the specific order, other connection dimensions may apply.
Risk of fire! • Only use oil approved by Busch and suitable for oxygen application, see Oil [} 26]. At delivery, the machine is already filled with specific oil "Busch YLC 250 B" which is suitable for oxygen application. A lead seal is applied on the oil fill plug (OFP) and the oil drain plug (ODP) in order to prevent wrong material from being filled in.
Installation | 5 • Make sure that the power supply for the motor is compatible with the data on the nameplate of the motor. • Provide overload protection according to EN 60204-1 for the motor. • Connect the protective earth conductor. •...
• Switch any two of the motor phase wires. 5.5 Electrical Connection of the Monitoring Devices NOTE In order to prevent potential nuisance alarms, Busch recommends that the control system is configured with a time delay of at least 10 seconds. 5.5.1 Wiring Diagram Temperature Switch (Optional) Part no.: 0651 563 747...
Commissioning | 6 5.5.3 Wiring Diagram Level and Temperature Switch (Optional) Part no.: 0652 563 748 Connector: M12x1, 4-pin U = ≤ 230 V AC/DC (50/60 Hz) ; I = ≤ 0.5 A 1 = Brown ; 2 = White ; Switch point: 3 = Blue ;...
• Measure the motor current and record it as reference for future maintenance and troubleshooting work. 6.1 Conveying Condensable Vapours Water vapour within the gas flow is tolerated within certain limits. The conveyance of other vapours shall be agreed upon with Busch. If condensable vapours are to be conveyed: 16 / 28 0870573103_RA0160-0302D_O2_-0001_IM_en...
• The machine must be removed from service and cleaned by specialists (contact your Busch representative). WARNING Use of non-Busch genuine spare parts. Risk of fire! • Only use Busch spare parts approved by Busch and suitable for oxygen application. 0870573103_RA0160-0302D_O2_-0001_IM_en 17 / 28...
• Prior to any action requiring touching the machine, let the machine cool down first. • Make sure to have an authorisation from Busch to perform any maintenance tasks. • Shut down the machine and lock against inadvertent start up.
If the oil becomes dark or looks different from the initial colour: • Change the oil immediately, see Oil and Oil Filter Change [} 19]. You can consult your Busch representative in order to find out why this colour change has occurred.
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7 | Maintenance 1x o-ring, part no.: 0482 509 010 Remove lead seal (if authorized) Drain pan Busch genuine spare parts 1x oil filter (OF), part no.: 0531 531 532 Oil filter wrench 20 / 28 0870573103_RA0160-0302D_O2_-0001_IM_en...
Maintenance | 7 For oil type and oil capacity see Technical Data [} 26] and Oil [} 26]. Reapply lead seal 1x o-ring, part no.: 0486 509 012 Check oil level 7.5 Exhaust Filter Change 13 mm wrench RA 0160-0202 D: 2x exhaust filter (EF) RA 0250-0302 D: 3x exhaust filter (EF) 0870573103_RA0160-0302D_O2_-0001_IM_en 21 / 28...
• Decontaminate the machine as well as possible and state the contamination status in a ‘Declaration of Contamination’. Busch will only accept machines that come with a completely filled in and legally binding signed ‘Declaration of Contamination’. (Form downloadable from www.buschvacuum.com)
Use of non-Busch genuine spare parts. Risk of premature failure! Loss of efficiency! • The exclusive use of Busch genuine spare parts and consumables is recommended for the proper function of the machine and for granting of warranty. WARNING Use of non-Busch genuine spare parts.
The inlet filter cartridge (op- • Replace the inlet filter tional) is partially clogged. cartridge. Internal parts are worn or • Repair the machine (con- damaged. tact Busch). The machine runs very nois- Worn coupling (CPL). • Replace the coupling ily. (CPL). Stuck vanes.
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Remove the clogging. The oil is black. Oil change intervals are too • Flush the machine (con- long. tact Busch). The inlet filter (optional) is • Replace the inlet filter. defective. The machine runs too hot. • See problem "The ma- chine runs too hot".
12 | Technical Data 12 Technical Data RA 0160 D RA 0202 D RA 0250 D RA 0302 D Nominal pumping speed m³/h 160 / 190 200 / 240 250 / 300 300 / 360 (50Hz / 60Hz) Ultimate pressure hPa (mbar) abs.
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Zone Industrielle CH-2906 Chevenez declare that the machine(s) R 5 RA 0160 D; RA 0202 D; RA 0250 D; RA 0302 D with a serial number from C1701… to C1852… has (have) been manufactured in accordance with the European Directives: –...