BUSCH COBRA NC 0500 B Instruction Manual
Cobra dry screw vacuum pumps
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Summary of Contents for BUSCH COBRA NC 0500 B
- Page 1 COBRA Dry Screw Vacuum Pumps NC 0500 B Instruction Manual 0870549522 | A0002_en | Original instructions 28/02/2022...
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Page 2: Table Of Contents
Table of Contents Table of Contents Safety..................................Product Description ............................. Operating Principle ............................. Application ................................Start Controls ............................... Standard Features............................... 2.4.1 Water Cooling............................2.4.2 Temperature Switch ..........................2.4.3 Thermometer ............................2.4.4 Silencer ..............................2.4.5 Sealing Systems............................. Transport ................................Storage .................................. Installation ................................ -
Page 3: Safety
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. -
Page 4: Product Description
2 | Product Description Product Description ODP, MP Description Cooling liquid drain plug Cooling liquid fill plug Cooling liquid sight glass Cooling liquid pump Cooling water inlet Cooling water outlet Eye bolt Electrical connection Suction connection Magnetic plug Nameplate Oil drain plug Oil fill plug Oil sight glass Discharge connection... -
Page 5: Operating Principle
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 capable of maintaining ultimate pressure, see Technical Data [➔ 29]. The machine is suitable for continuous operation. -
Page 6: Temperature Switch
2 | Product Description 2.4.2 Temperature Switch The temperature switch monitors the oil temperature of the machine. The machine must be stopped when the temperature switch trips (100 °C). 2.4.3 Thermometer The thermometer allows a visual display of the cooling liquid temperature. 2.4.4 Silencer The silencer reduces the exhaust gas noise at the machine discharge (OUT). -
Page 7: Transport
Transport | 3 Transport WARNING Suspended load. Risk of severe injury! ● Do not walk, stand or work under suspended loads. WARNING Lifting the machine using the motor eye bolt. Risk of severe injury! ● Do not lift the machine using the eye bolt fitted to the motor. Only lift the machine as shown. NOTICE In case the machine is already filled with oil. -
Page 8: Storage
4 | Storage Storage ● Seal all apertures with adhesive tape or reuse provided caps. If the machine is to be stored for more than 3 months: ● Wrap the machine in a corrosion inhibiting film. ● Store the machine indoors, dry, dust free and if possible in original packaging preferably at temperatures between 5 ... -
Page 9: Installation
● Make sure that the cooling water complies with the requirements, see Cooling Water Connection [➔ 11]. If the machine is installed at an altitude greater than 1000 meters above sea level: ● Contact your Busch representative, the motor should be derated or the ambient temperature limited. Connecting Lines / Pipes ●... -
Page 10: Suction Connection
● Install a suitable filter (5 micron or less) upstream from the machine. Connection size(s): – G2 If the machine is used as part of a vacuum system: ● Busch recommends the installation of an isolation valve in order to prevent the machine from turning backwards. 5.2.2 Discharge Connection Connection size(s): –... -
Page 11: Cooling Water Connection
Installation | 5 5.2.3 Cooling Water Connection Description Cooling water inlet Cooling water outlet ● Connect the cooling water connections (CWI / CWO) to the water supply. Connection size: – G1/4 for the cooling water inlet (CWI) – R1/2 for the cooling water outlet (CWO) ●... -
Page 12: Filling Oil
Use of an inappropriate oil. Risk of premature failure! Loss of efficiency! ● Only use an oil type which has previously been approved and recommended by Busch. For oil type and oil capacity see Technical Data [➔ 29] and Oil [➔ 31]. 12 | 36... -
Page 13: Filling Cooling Liquid
If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. Filling Cooling Liquid For cooling liquid type and cooling liquid capacity see Technical Data [➔ 29] and Cooling Liquid [➔ 30]. -
Page 14: Wiring Diagram Three-Phase Motor (Pump Drive)
● Provide an overload protection according to EN 60204-1 for the motor. ● Make sure that the motor of the machine will not be affected by electric or electromagnetic disturbance from the mains; if necessary seek advice from Busch. ● Connect the protective earth conductor. -
Page 15: Electrical Connection Of The Monitoring Devices
● Switch any two of the motor phase wires. 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 20 seconds. 5.6.1 Wiring Diagram Temperature Switch Part no.: 0651 541 566... -
Page 16: Commissioning
6 | Commissioning Commissioning NOTICE The machine can be shipped without oil. Operation without oil will ruin the machine in short time! ● Prior to commissioning, the machine must be filled with oil, see Filling Oil [➔ 12]. NOTICE The machine can be shipped without cooling liquid. Operation without cooling liquid will ruin the machine in short time! ●... - Page 17 Commissioning | 6 ● Measure the motor current and record it as reference for future maintenance and troubleshooting work. Instruction Manual COBRA NC 0500 B_EN_en 17 | 36...
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Page 18: Maintenance
Risk of premature failure and loss of efficiency! ● Maintenance work must only be executed by qualified personnel. ● Respect the maintenance intervals or ask your Busch representative for service. ● Shut down the machine and lock against inadvertent start up. -
Page 19: Maintenance Schedule
● Change the cooling liquid, see Cooling Liquid Change [➔ 23]. ● Clean the magnetic plugs (MP). Every 16000 hours or after 4 ● Have a major overhaul on the machine (contact Busch). years Oil Level Inspection ● Shut down the machine. -
Page 20: Cooling Liquid Level Inspection
● Fill up if necessary, see Filling Cooling Liquid [➔ 13]. Oil Change NOTICE Use of an inappropriate oil. Risk of premature failure! Loss of efficiency! ● Only use an oil type which has previously been approved and recommended by Busch. 20 | 36 Instruction Manual COBRA NC 0500 B_EN_en... - Page 21 Maintenance | 7 For oil type and oil capacity see Technical Data [➔ 29] and Oil [➔ 31]. Instruction Manual COBRA NC 0500 B_EN_en 21 | 36...
- Page 22 __ / __ / ____ Oil type see nameplate Change interval see instruction manual If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. 22 | 36 Instruction Manual COBRA NC 0500 B_EN_en...
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Page 23: Cooling Liquid Change
Maintenance | 7 Cooling Liquid Change ● Refit all plugs. For cooling liquid type and cooling liquid capacity see Technical Data [➔ 29] and Cooling Liquid [➔ 30]. Instruction Manual COBRA NC 0500 B_EN_en 23 | 36... -
Page 24: Overhaul
● Decontaminate the machine as much 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). -
Page 25: Decommissioning
Decommissioning | 9 Decommissioning CAUTION Hot surface. Risk of burns! ● Prior to any action requiring touching the machine, let the machine cool down first. ● Shut down the machine and lock against inadvertent start up. ● Disconnect the power supply. ●... -
Page 26: Spare Parts
● The exclusive use of Busch genuine spare parts and consumables is recommended for the correct functioning of the machine and to validate the warranty. There is no standard spare parts kits available for this product, if you require Busch genuine parts: ● Contact your Busch representative. -
Page 27: Troubleshooting
Busch). Solid foreign matter has ● Remove the solid foreign entered the machine. matter or repair the machine (contact Busch). ● Install an inlet filter if necessary. The temperature switch (TS) ● Let the machine cool down. reached the switch point. - Page 28 Oil Change [➔ 20]. The machine runs too hot. ● See problem "The machine runs too hot". For the solution of problems not mentioned in the troubleshooting chart contact your Busch representative. 28 | 36 Instruction Manual COBRA NC 0500 B_EN_en...
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Page 29: Technical Data
Technical Data | 12 Technical Data NC 0500 B Pumping speed m³/h Ultimate pressure hPa (mbar) ≤0.01 abs. Nominal motor rating Operating voltages V (50Hz) 190-210 / 380-420 V (60Hz) 200-240 / 380-460 Nominal motor speed (50Hz / 60Hz) 2900-2930 / 3470-3540 Supply current A (50Hz) 35-36 / 22-25... -
Page 30: Cooling Liquid
13 | Cooling Liquid Cooling Liquid Zitrec M-25 (ready-to-use) Part number 5 L packaging 0831 563 469 Part number 20 L packaging 0831 238 761 The cooling liquid Zitrec M-25 is ready-to-use and does not require additional water. For further information, consult the website www.arteco-coolants.com. 30 | 36 Instruction Manual COBRA NC 0500 B_EN_en... -
Page 31: Oil
Oil | 14 VSL 100 ISO-VG Part number 1 L packaging 0831 122 573 Part number 5 L packaging 0831 122 572 Instruction Manual COBRA NC 0500 B_EN_en 31 | 36... -
Page 32: Eu Declaration Of Conformity
15 | EU Declaration of Conformity EU Declaration of Conformity This Declaration of Conformity and the CE-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer. -
Page 33: Uk Declaration Of Conformity
UK Declaration of Conformity | 16 UK Declaration of Conformity This Declaration of Conformity and the UKCA-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer. - Page 34 Notes 34 | 36 Instruction Manual COBRA NC 0500 B_EN_en...
- Page 35 Instruction Manual COBRA NC 0500 B_EN_en 35 | 36...
- Page 36 With a network of over 60 companies in more than 40 countries and agencies worldwide, Busch has a global presence. In every country, highly competent local personnel delivers custom-tailored support backed by a global network of expertise. Wherever you are.
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