BUSCH COBRA NC 0630 C Instruction Manual
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BUSCH COBRA NC 0630 C Instruction Manual

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Instruction Manual
COBRA
Dry Screw Vacuum Pumps
NC 0630 C
(air-cooled version)
0870567093/A0004_en / Original instructions / Modifications reserved
14/09/2021

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Summary of Contents for BUSCH COBRA NC 0630 C

  • Page 1 Instruction Manual COBRA Dry Screw Vacuum Pumps NC 0630 C (air-cooled version) 0870567093/A0004_en / Original instructions / Modifications reserved 14/09/2021...

  • Page 2: Table Of Contents

    6.3 Gas Purging Procedure....................24 7 Maintenance ...........................24 7.1 Maintenance Schedule....................25 7.2 Oil Level Inspection ......................26 7.3 Cooling Liquid Level Inspection ..................26 7.4 Replacing the Gas Ballast Filter (Optional) ..............26 2 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...
  • Page 3 7.6 Cooling Liquid Change....................30 8 Overhaul..........................31 9 Decommissioning ........................31 9.1 Dismantling and Disposal....................31 10 Spare Parts ..........................32 11 Troubleshooting........................32 12 Technical Data........................35 13 Cooling Liquid ........................35 14 Oil ............................35 15 EU Declaration of Conformity ....................36 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 4: 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 any- thing on the product.

  • Page 5: Product Description

    Plug for manual rotation of rotors Silencer Safety valve Thermometer Temperature switch NOTE Technical term. In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’. Instruction Manual COBRA NC 0630 C ACV_EN_en 5 / 40...

  • Page 6: 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 intended for the placement in a non-potentially explosive environment. The machine is capable of maintaining ultimate pressure, see Technical Data [► 35].

  • Page 7: Temperature Switch

    The sealing systems can be equipped with mechanical seals. The following variants are possible: – Oil lubricated single mechanical seals on the motor side and labyrinth seals on the suction side. Instruction Manual COBRA NC 0630 C ACV_EN_en 7 / 40...

  • Page 8: Nitrogen Panel

    • Drain the oil prior to every transport or always horizontally transport the machine. • Make sure that the eyebolt(s) (EB) is/are in faultless condition, fully screwed in and tightened by hand. 8 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 9: Storage

    Change [► 27]. This protects the mechanical seals during a long storage. Use the standard pump oil, see chapter Oil [► 35]. • Before restarting the machine, drain the oil to the normal oil level, see “Oil draining” in chapter Oil Change [► 27]. Instruction Manual COBRA NC 0630 C ACV_EN_en 9 / 40...

  • Page 10: Installation

    • Check the cooling liquid level, see Cooling Liquid Level Inspection [► 26]. 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.

  • Page 11: Connecting Lines / Pipes

    If a purge gas system or a liquid flushing device being installed: – DN100 PN16, EN 1092-1 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...

  • Page 12: Barrier Gas System Connection (Optional)

    • Electrically connect the solenoid valve (MV), see Wiring Diagram Solenoid Valve [► 20]. • Electrically connect the flow switch (FS) of the flow meter, see Wiring Diagram Flow Switch [► 21]. 12 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 13: Dilution Gas System Connection (Optional)

    Dry nitrogen Gas temperature °C 0 ... 60 Maximum gas pressure Recommended pressure setting at the pressure regulating valve (PRV) Filtration µm Recommended flow rate SLM* * standard litre per minute Instruction Manual COBRA NC 0630 C ACV_EN_en 13 / 40...

  • Page 14: Purge Gas System Connection (Optional)

    5.3 Filling Oil 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. 14 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...
  • Page 15 For oil type and oil capacity see Technical Data [► 35] and Oil [► 35]. Oil filling at the motor side Check oil level Oil filling at the suction side Check oil level Instruction Manual COBRA NC 0630 C ACV_EN_en 15 / 40...

  • Page 16: Filling Cooling Liquid

    Radiator vent valve key Fill up to the top of the vent orifice Resume cooling liquid filling Close the cooling liquid vent valve (CLV2) when the cooling liquid is spilling out 16 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 17: Liquid Flushing Device Installation (Optional)

    Coupling hub (motor side) Radial screw Max. admissible torque: 10 Nm Machine type Coupling size Value “E” (mm) ® NC 0600 C ROTEX NC 0630 C ® NC 0630 C ROTEX Instruction Manual COBRA NC 0630 C ACV_EN_en 17 / 40...

  • Page 18: Electrical Connection

    • 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 electro- magnetic disturbance from the mains; if necessary seek advice from Busch. • Connect the protective earth conductor.

  • Page 19: Wiring Diagram Three-Phase Motor (Pump Drive)

    • Operation in the wrong direction of rotation can destroy the machine in a short time! Prior to start-up, ensure that the machine is operated in the right direction. The intended rotation direction of the motor is defined by the illustration below: Instruction Manual COBRA NC 0630 C ACV_EN_en 19 / 40...

  • Page 20: Wiring Diagram Solenoid Valve (Optional)

    U1 = Black ; V1 = Blue ; W1 = Brown ; U2 = Green ; V2 = White ; W2 = Yellow U = 230/400 VAC 50 Hz ; I = 0.9/0.5 A U = 230/400 VAC 60 Hz ; I = 0.95/0.54 A P = 0.195 kW 20 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 21: Electrical Connection Of The Monitoring Devices

    • Switch any two of the motor phase wires. 5.9 Electrical Connection of the Monitoring Devices NOTE In order to prevent potential nuisance alarms, Busch recommends that the control sys- tem is configured with a time delay of at least 20 seconds. 5.9.1 Wiring Diagram Temperature Switch Part no.: 0651 541 566...

  • Page 22: Wiring Diagram Level Switch (Optional)

    CAUTION During operation the surface of the machine may reach temperatures of more than 70°C. Risk of burns! • Avoid contact with the machine during and directly after operation. 22 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 23: Conveying Condensable Vapours

    (solenoid valve) • Close the inlet system* valve * optional accessories • Continuously drain condensate from the condensate drain plug (CD) of the silencer (SI) (Optional). Instruction Manual COBRA NC 0630 C ACV_EN_en 23 / 40...

  • Page 24: Liquid Flushing Procedure

    If the machine is contaminated with hazardous material: • Wear appropriate personal protective equipment. CAUTION Hot surface. Risk of burns! • Prior to any action requiring touching the machine, let the machine cool down first. 24 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 25: Maintenance Schedule

    Risk of injuries! Risk of premature failure and loss of efficiency! • Respect the maintenance intervals or ask your Busch representative for service. • Shut down the machine and lock against inadvertent start up. If the machine is equipped with a barrier gas system: •...

  • Page 26: Oil Level Inspection

    • Fill up if necessary, see Filling Cooling Liquid [► 16]. 7.4 Replacing the Gas Ballast Filter (Optional) Busch genuine spare parts Gas ballast filter: part no. 0562 550 434 Discard the part 26 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 27: Oil Change

    Loss of efficiency! • Only use an oil type which has previously been approved and recommended by Busch. Oil draining at the motor side Magnetic plug Cleaning cloth Drain pan Instruction Manual COBRA NC 0630 C ACV_EN_en 27 / 40...
  • Page 28 Oil draining at the suction side Magnetic plug Cleaning cloth Drain pan For oil type and oil capacity see Technical Data [► 35] and Oil [► 35]. Oil filling at the motor side Check oil level 28 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...
  • Page 29 __ / __ / ____ 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. Instruction Manual COBRA NC 0630 C ACV_EN_en 29 / 40...

  • Page 30: Cooling Liquid Change

    Radiator vent valve key Fill up to the top of the vent orifice Resume cooling liquid filling Close the cooling liquid vent valve (CLV2) when the cooling liquid is spilling out 30 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 31: 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 bind- ing signed ‘Declaration of Contamination’ (form downloadable from www.buschvacuum.com).

  • Page 32: 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: •...
  • Page 33 • Use one of the recom- noisily. suitable oil type. mended oils in the cor- rect quantity, see Oil [► 35]. Defective gears, bearings • Repair machine (contact or coupling element. Busch). Instruction Manual COBRA NC 0630 C ACV_EN_en 33 / 40...
  • Page 34 [► 27]. The machine runs too hot. • See problem "The ma- chine runs too hot". For the solution of problems not mentioned in the troubleshooting chart contact your Busch representative. 34 / 40 Instruction Manual COBRA NC 0630 C ACV_EN_en...

  • Page 35: Technical Data

    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. 14 Oil VE 101 ISO-VG Part number 1 L packaging 0831 000 099 Part number 5 L packaging 0831 000 100 Instruction Manual COBRA NC 0630 C ACV_EN_en 35 / 40...

  • Page 36: Eu Declaration Of Conformity

    15 EU Declaration of Conformity This Declaration of Conformity and the CE-mark 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 manufac- turer.
  • Page 37 Note...
  • Page 38 Note...
  • Page 39 Note...
  • Page 40 Busch Vacuum Solutions We shape vacuum for you. Argentina Denmark Malaysia South Africa info@busch.com.ar info@busch.dk busch@busch.com.my info@busch.co.za Australia Finland Mexico Spain sales@busch.com.au info@busch.fi info@busch.com.mx contacto@buschiberica.es Austria France Netherlands Sweden busch@busch.at busch@busch.fr info@busch.nl info@busch.se Bangladesh Germany New Zealand Switzerland sales@busch.com.bd info@busch.de sales@busch.co.nz...

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