BUSCH Mink MV 0502 B User manual

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MINK
Claw Vacuum Pumps
MV 0502 B, MV 0602 B
Instruction Manual
0870167098 | B0003_en | Original instructions 03/03/2022

Table of Contents
2 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
Table of Contents
1 Safety..................................................................................................................................................................... 3
2 Product Description............................................................................................................................................. 4
2.1 Operating Principle ............................................................................................................................................. 5
2.2 Application ........................................................................................................................................................... 5
2.3 Start Controls....................................................................................................................................................... 5
2.4 Standard Features............................................................................................................................................... 6
2.4.1 Vacuum Relief Valve.............................................................................................................................. 6
2.5 Optional Accessories........................................................................................................................................... 6
2.5.1 Inlet Filter............................................................................................................................................... 6
3 Transport .............................................................................................................................................................. 7
4 Storage .................................................................................................................................................................. 8
5 Installation ........................................................................................................................................................... 9
5.1 Installation Conditions........................................................................................................................................ 9
5.2 Connecting Lines / Pipes .................................................................................................................................... 10
5.2.1 Suction Connection............................................................................................................................... 10
5.2.2 Discharge Connection .......................................................................................................................... 10
5.3 Filling Oil............................................................................................................................................................... 10
5.4 Electrical Connection .......................................................................................................................................... 11
5.4.1 Wiring Diagram Three-Phase Motor .................................................................................................. 12
6 Commissioning..................................................................................................................................................... 14
6.1 Conveying Condensable Vapours ..................................................................................................................... 14
7 Maintenance......................................................................................................................................................... 15
7.1 Maintenance Schedule ....................................................................................................................................... 15
7.2 Oil Level Inspection............................................................................................................................................. 16
7.3 Cleaning from Dust and Dirt.............................................................................................................................. 17
7.4 Oil Change............................................................................................................................................................ 17
8 Overhaul................................................................................................................................................................ 19
9 Decommissioning................................................................................................................................................. 20
9.1 Dismantling and Disposal .................................................................................................................................. 20
10 Spare Parts............................................................................................................................................................ 21
11 Troubleshooting................................................................................................................................................... 22
12 Technical Data...................................................................................................................................................... 24
13 Oil........................................................................................................................................................................... 25
14 EU Declaration of Conformity............................................................................................................................. 26
15 UK Declaration of Conformity ............................................................................................................................ 27

Safety | 1
Instruction Manual MINK MV 0502-0602 B_EN_en 3 | 28
1 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.
The machine is intended for industrial use. It must be handled only by technically trained personnel.
Always wear appropriate personal protective equipment in accordance with the local regulations.
The machine has been designed and manufactured according to state-of-the-art methods.
Nevertheless, residual risks may remain. This instruction manual highlights potential hazards where
appropriate. Safety notes and warning messages are tagged with one of the keywords DANGER,
WARNING, CAUTION, NOTICE and NOTE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if not
prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and
trouble-free operation.

2 | Product Description
4 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
2 Product Description
CAI IN OFP
CAO ODP OSG OUT
NP
NRV DA
Description
IN Suction connection ODP Oil drain plug
OUT Discharge connection CAI Cooling air inlet
OFP Oil fill plug (=Venting valve) CAO Cooling air outlet
OSG Oil sight glass NP Nameplate
NRV Non-return-valve (integrated) DA Directional arrow
NOTE
Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’.
NOTE
Illustrations
In this instruction manual the illustrations may differ from the machine appearance.

Product Description | 2
Instruction Manual MINK MV 0502-0602 B_EN_en 5 | 28
NOTE
Product origin
The serial number on the nameplate (NP) determines the manufacturing plant.
2.1 Operating Principle
The machine works on the claw principle.
The MINK is fully air-cooled thanks to an integrated fan in the drive unit.
In order to avoid solids from entering, the machine is equipped with an inlet screen (IS).
In order to avoid reverse rotation after switching off, the machine is equipped with a non-return
valve (NRV).
2.2 Application
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic and non-
explosive gases.
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 designed for indoor installation, in case of outdoor installation, ask your Busch
representative in order to take specific precautions.
The machine is not capable of maintaining ultimate pressure.
– The minimum allowed ultimate pressure is to be read from the nameplate of the machine.
– By means of process control and/or vacuum relief valves it must be made sure that the
minimum allowed ultimate pressure will not be underrun.
The machine is suitable for continuous operation.
Note: The non-return valve (NRV) is no reliable means to prevent suction and shall not be used as a
non-return valve or shut-off valve for the system.
If the machine needs to be maintained after shutdown:
●Provide an additional manual or automatic operated non-return valve in the suction line.
Permitted environmental conditions, see Technical Data [➔24].
2.3 Start Controls
The machine comes without start controls. The control of the machine is to be provided in the
course of installation.
The machine can be equipped with a soft-starter.

2 | Product Description
6 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
2.4 Standard Features
2.4.1 Vacuum Relief Valve
The ultimate pressure is limited by a vacuum relief valve (VRE). The vacuum relief valve is adjusted
ex-works to the minimum permitted ultimate pressure (see nameplate).
2.5 Optional Accessories
2.5.1 Inlet Filter
The inlet filter protects the machine against dust and other solids in the process gas. The inlet filter
is available with a paper or polyester cartridge.

Transport | 3
Instruction Manual MINK MV 0502-0602 B_EN_en 7 | 28
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.
●To find out the weight of the machine, refer to the chapter Technical Data [➔24] or the
nameplate (NP).
●Make sure that the eyebolt(s) (EB) is/are in faultless condition, fully screwed in and tightened by
hand.
1
Description
1 Use both eye bolts!
●Check the machine for transport damage.
If the machine is secured to a base plate:
●Remove the machine from the base plate.

4 | Storage
8 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
4 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 0 ... 40 °C.

Installation | 5
Instruction Manual MINK MV 0502-0602 B_EN_en 9 | 28
5 Installation
5.1 Installation Conditions
NOTICE
Use of the machine outside of the permitted installation conditions.
Risk of premature failure!
Loss of efficiency!
●Take care that the installation conditions are fully complied with.
~1m
~1m ~1m
~1m
Other values may apply after Busch approval
●Make sure that the environment of the machine is not potentially explosive.
●Make sure that the ambient conditions comply with the Technical Data [➔24].
●Make sure that the environmental conditions comply with the protection class of the motor and
the electrical instruments.
●Make sure that the installation space or location is vented such that sufficient cooling of the
machine is provided.
●Make sure that cooling air inlets and outlets are not covered or obstructed and that the cooling
air flow is not affected adversely in any other way.
●Make sure that the oil sight glass (OSG) remains easily visible.
●Make sure that enough space remains for maintenance work.
●Make sure that the machine is placed or mounted horizontally, a maximum of 1° in any direction
is acceptable.
●Check the oil level, see Oil Level Inspection [➔16].
●Make sure that all provided covers, guards, hoods, etc. are mounted.
If the machine is installed at an altitude greater than 1000 meters above sea level:

5 | Installation
10 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
●Contact your Busch representative, the motor should be derated or the ambient temperature
limited.
5.2 Connecting Lines / Pipes
WARNING
Rotating Parts.
Risk of severe injury!
●Do not operate the machine without suction / discharge connection installed.
●Remove all protective covers before installation.
●Make sure that the connection lines cause no stress on the machine‘s connection; if necessary use
flexible joints.
●Make sure that the line size of the connection lines over the entire length is at least as large as
the connections of the machine.
In case of long connection lines it is advisable to use larger line sizes in order to avoid a loss of
efficiency. Seek advice from your Busch representative.
5.2.1 Suction Connection
Connection size(s):
– G3
Depending on the specific order, other connection dimensions may apply.
5.2.2 Discharge Connection
Connection size(s):
– R2
Depending on the specific order, other connection dimensions may apply.
●Make sure that the discharged gas will flow without obstruction. Do not shut off or throttle the
discharge line or use it as a pressurised air source.
●Make sure that the discharge line either slopes away from the machine or provide a liquid
separator or a siphon with a drain cock, so that no liquids can flow back into the machine.
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.
For oil type and oil capacity see Technical Data [➔24] and Oil [➔25].

Installation | 5
Instruction Manual MINK MV 0502-0602 B_EN_en 11 | 28
The oil level should stay constant over the lifetime of the oil. If the level does fall, this indicates a leak
and the machine requires repair.
5.4 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
●Electrical installation work must only be executed by qualified personnel.
●Make sure that the power supply for the motor is compatible with the data on the nameplate of
the motor.
●The electrical installation must comply with applicable national and international standards.
●Provide a lockable disconnect switch on the power line so that the machine is completely secured
during maintenance tasks.
●Provide an overload protection according to EN 60204-1 for the motor.
●Busch recommends installing a D-curve circuit breaker.
●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.
●Electrically connect the motor.

5 | Installation
12 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
NOTICE
Incorrect connection.
Risk of damage to the motor!
●The wiring diagrams given below are typical. Check the inside of the terminal box for motor
connection instructions/diagrams.
5.4.1 Wiring Diagram Three-Phase Motor
NOTICE
Incorrect direction of rotation.
Risk of damage to the machine!
●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.
●Determine the intended direction of rotation with the arrow (stuck on or cast).
●Jog the motor briefly.
If the rotation of the motor must be changed:
●Switch any two of the motor phase wires.
Delta connection (low voltage): Star connection (high voltage):
Double star connection, multi-voltage motor
with 9 pins (low voltage):
Star connection, multi-voltage motor with 9
pins (high voltage):
Double star connection, multi-voltage motor
with 12 pins (low voltage):
4
4
4
Star connection, multi-voltage motor with 12
pins (high voltage):
4
4
4

Installation | 5
Instruction Manual MINK MV 0502-0602 B_EN_en 13 | 28
Delta connection, multi-voltage motor with 12
pins (middle voltage):
4
4
4

6 | Commissioning
14 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
6 Commissioning
NOTICE
Lubricating a dry running machine (compression chamber).
Risk of damage to the machine!
●Do not lubricate the compression chamber of the machine with oil or grease.
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.
CAUTION
Noise of running machine.
Risk of damage to hearing!
If persons are present in the vicinity of a non noise insulated machine over extended periods:
●Make sure that ear protection is being used.
●Make sure that the installation conditions (see Installation Conditions [➔9]) are met.
●Switch on the machine.
●Make sure that the maximum permissible number of starts does not exceed 12 starts per hour.
Those starts should be spread within the hour.
●Make sure that the operating conditions comply with the Technical Data [➔24].
As soon as the machine is operated under normal operating conditions:
●Measure the motor current and record it as reference for future maintenance and
troubleshooting work.
6.1 Conveying Condensable Vapours
Use the machine in Aqua version for conveying water vapour or other condensable vapours. The
machine in Aqua version is able to convey up to 100% saturated water vapour.
The conveyance of other vapours than water vapour shall be agreed upon with Busch.
●Make sure that any condensate from the suction side will not enter the non-operating machine.
●Before process:
●Warm up the machine by running the machine for 30 minutes.
●After process:
●During process condensate may occur in the machine. To remove the condensate from the
machine, convey dry air at 400 mbar with the machine’s maximum speed for 30 minutes, after
the process and at least once a day.

Maintenance | 7
Instruction Manual MINK MV 0502-0602 B_EN_en 15 | 28
7 Maintenance
WARNING
Machines contaminated with hazardous material.
Risk of poisoning!
Risk of infection!
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.
NOTICE
Using inappropriate cleaners.
Risk of removing safety stickers and protective paint!
●Do not use incompatible solvents to clean the machine.
CAUTION
Failing to properly maintain the machine.
Risk of injuries!
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.
●Vent the connected lines to atmospheric pressure.
If necessary:
●Disconnect all connections.
7.1 Maintenance Schedule
The maintenance intervals depend very much on the individual operating conditions. The intervals
given below are considered as starting values which should be shortened or extended as
appropriate. Particularly harsh applications or heavy duty operation, such as high dust loads in the
environment or in the process gas, other contamination or ingress of process material, can make it
necessary to shorten the maintenance intervals significantly.

7 | Maintenance
16 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
Interval Maintenance work
Monthly ●Check the inlet screen, clean if necessary.
In case of an inlet filter (IF) being installed:
●Check the inlet filter cartridge, replace if necessary.
Every 3 months ●Check the oil level, see Oil Level Inspection [➔16].
Every 6 months ●Clean the machine from dust and dirt.
In case of a coupling (CPL) being installed:
●Check the coupling (CPL) for backlash and wear.
Every 20000 hours ●Change the oil.
The change interval of 20000 operating hours is valid for
Busch approved oils only. The change interval depends very
much on the operating conditions. Borderline operation may
reduce the change interval down to approximately 5000
operating hours. Other oils may reduce the change interval.
Every 6 years ●Have a major overhaul on the machine (contact Busch).
7.2 Oil Level Inspection
●Shut down the machine.
●When the machine is stopped, wait 1 minute before checking the oil level.
MAX
MIN
MAX
MIN
MAX
MIN
The oil level should stay constant over the lifetime of the oil. If the level does fall, this indicates a leak
and the machine requires repair.
●Fill up if necessary, see Oil Filling [➔10].

Maintenance | 7
Instruction Manual MINK MV 0502-0602 B_EN_en 17 | 28
7.3 Cleaning from Dust and Dirt
2
1
Description
1 4 mm hex key 2 Clean the ventilation grilles, fans, inlet
screen and cooling fins
7.4 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.

7 | Maintenance
18 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
For oil type and oil capacity see Technical Data [➔24] and Oil [➔25].
The oil level should stay constant over the lifetime of the oil. If the level does fall, this indicates a leak
and the machine requires repair.

Overhaul | 8
Instruction Manual MINK MV 0502-0602 B_EN_en 19 | 28
8 Overhaul
WARNING
Machines contaminated with hazardous material.
Risk of poisoning!
Risk of infection!
If the machine is contaminated with hazardous material:
●Wear appropriate personal protective equipment.
NOTICE
Improper assembly.
Risk of premature failure!
Loss of efficiency!
●It is highly recommended that any dismantling of the machine that goes beyond anything that is
described in this manual should be done through Busch.
In case of the machine having conveyed gas that was contaminated with foreign materials which are
dangerous to health:
●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).

9 | Decommissioning
20 | 28 Instruction Manual MINK MV 0502-0602 B_EN_en
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.
●Vent the connected lines to atmospheric pressure.
●Disconnect all connections.
If the machine is going to be stored:
●See Storage [➔8].
9.1 Dismantling and Disposal
●Drain and collect the oil.
●Make sure that no oil drips onto the floor.
●Separate special waste from the machine.
●Dispose of special waste in compliance with applicable regulations.
●Dispose of the machine as scrap metal.