BUSCH MINK MV 0312 B User manual

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Instruction Manual
MINK
Claw Vacuum Pumps
MV 0312 B
0870166451/B0004_en / Original instructions / Modifications reserved 22/06/2021

Table of Contents
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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 .......................................................................................................... 5
2.4.1 Vacuum Relief Valve ............................................................................................ 5
2.5 Optional Accessories ...................................................................................................... 6
2.5.1 Inlet Filter.............................................................................................................. 6
3 Transport ................................................................................................................................7
4 Storage....................................................................................................................................7
5 Installation ..............................................................................................................................8
5.1 Installation Conditions ..................................................................................................... 8
5.2 Connecting Lines / Pipes ................................................................................................ 9
5.2.1 Suction Connection .............................................................................................. 9
5.2.2 Discharge Connection .......................................................................................... 9
5.3 Filling Oil ......................................................................................................................... 9
5.4 Electrical Connection ...................................................................................................... 10
5.4.1 Wiring Diagram Three-Phase Motor..................................................................... 11
6 Commissioning ......................................................................................................................12
6.1 Conveying Condensable Vapours................................................................................... 12
7 Maintenance ...........................................................................................................................13
7.1 Maintenance Schedule.................................................................................................... 14
7.2 Oil Level Inspection......................................................................................................... 14
7.3 Cleaning from Dust and Dirt ............................................................................................ 14
7.4 Oil Change ...................................................................................................................... 15
8 Overhaul..................................................................................................................................17
9 Decommissioning ..................................................................................................................17
9.1 Dismantling and Disposal................................................................................................ 17
10 Spare Parts .............................................................................................................................18
11 Troubleshooting.....................................................................................................................19
12 Technical Data........................................................................................................................21
13 Oil ............................................................................................................................................21
14 EU Declaration of Conformity...............................................................................................22

Safety | 1
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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 any-
thing 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 meth-
ods. Nevertheless, residual risks may remain. This instruction manual highlights po-
tential 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 injur-
ies.
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
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2 Product Description
CAI IN OFP
CAO OSG ODP OUT
NP
DA
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
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.
NOTE
Product origin
The serial number on the nameplate (NP) determines the manufacturing plant.

Product Description | 2
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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.
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 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.
In order to avoid reverse rotation after switching off, the machine is equipped with a
non-return valve (NRV).
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.
In case the machine shall be maintained after shutdown:
• Provide an additional manual or automatic operated non-return valve in the suction
line.
Permitted environmental conditions, see Technical Data [►21].
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.
2.4 Standard Features
2.4.1 Vacuum Relief Valve
The ultimate pressure is limited by a vacuum relief valve. The vacuum relief valve is
adjusted ex-works to the minimum permitted ultimate pressure (see nameplate).

2 | Product Description
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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
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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.
• Make sure that the eyebolt(s) (EB) is/are in faultless condition, fully screwed in and
tightened by hand.
Machine weight:
see the technical data or the nameplate (NP)
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
• 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.

5 | Installation
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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 [►21].
• 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 cool-
ing 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 [►14].
• 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:
• Contact your Busch representative, the motor should be derated or the ambient
temperature limited.

Installation | 5
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5.2 Connecting Lines / Pipes
WARNING
The connection lines can build up an electrostatic charge.
Risk of severe injury!
Risk of explosion!
• The connection lines must be made out of conductive material or provisions must
be made against creating an electrostatic charge.
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):
– G2
Depending on the specific order, other connection dimensions may apply.
5.2.2 Discharge Connection
Connection size(s):
– R1 1/4
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.

5 | Installation
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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 [►21] and Oil [►21].
Check oil level
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.

Installation | 5
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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 com-
pletely 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 electro-
magnetic disturbance from the mains; if necessary seek advice from Busch.
• Connect the protective earth conductor.
• Electrically connect the motor.
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):

6 | Commissioning
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Double star connection, multi-voltage
motor with 9 pins (low voltage):
Star connection, multi-voltage motor
with 9 pins (high voltage):
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 [►8]) 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 [►21].
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.

Maintenance | 7
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6.1 Conveying Condensable Vapours
Use the machine in Aqua version for conveying water vapour or other condensable va-
pours. The machine in Aqua version is able to convey up to 100% saturated water va-
pour.
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-operat-
ing 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 condens-
ate 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.
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!
• 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 | Maintenance
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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.
Interval Maintenance work
Monthly In case of an inlet filter being installed:
• Check the inlet filter cartridge, replace if neces-
sary.
Every 3 months • Check the oil level, see Oil Level Inspection
[►14].
Every 6 months • Clean the machine from dust and dirt.
Every 20000 hours • Change the oil.
The change interval of 20000 operating hours is valid
for Busch approved oils only. The change interval de-
pends very much on the operating conditions. Border-
line 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 [►9].

Maintenance | 7
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7.3 Cleaning from Dust and Dirt
4 mm hex key
Clean the ventilation grilles,
cooling fins and inlet screen (IS)

7 | Maintenance
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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.
Drain pan
Cleaning cloth
For oil type and oil capacity see Technical Data [►21] and Oil [►21].
Check oil level
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
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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 ma-
terials 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 bind-
ing signed ‘Declaration of Contamination’
(form downloadable from www.buschvacuum.com).
9 Decommissioning
• Shut down the machine and lock against inadvertent start up.
• Vent the connected lines to atmospheric pressure.
• Disconnect all connections.
If the machine is going to be stored:
• See Storage [►7].
9.1 Dismantling and Disposal
• Drain the oil.
• Separate special waste from the machine.
• Dispose of special waste in compliance with applicable regulations.
• Dispose of the machine as scrap metal.

10 | Spare Parts
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10 Spare Parts
NOTICE
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 correct functioning of the machine and to validate the warranty.
Spare part Description Part no.
Oil fill plug
(=Venting valve)
Includes appropriate seal ring 0543 138 026
Oil sight glass 0583 000 001
Seal ring For oil sight glass 0480 202 576
Oil drain plug Includes appropriate seal ring 0415 134 870
Inlet flange lower part Includes non-return valve 0916 000 670
Inlet screen 0534 000 041
Inlet filter cartridge Paper 0532 000 004
Inlet filter cartridge Polyester 0532 121 864
If other parts are required:
• Contact your Busch representative for the detailed spare parts list.

Troubleshooting | 11
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11 Troubleshooting
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
CAUTION
Hot surface.
Risk of burns!
• Prior to any action requiring touching the machine, let the machine cool down first.
CPL
ISVRE
Problem Possible Cause Remedy
The machine does not start. The motor is not supplied
with the correct voltage.
• Check the power supply.
The motor is defective. • Replace the motor.
The coupling (CPL) is de-
fective.
• Replace the coupling
(CPL).
The machine does not
reach the usual pressure on
the suction connection.
The inlet screen (IS) is par-
tially clogged.
• Clean the inlet screen
(IS).
The vacuum relief valve
(VRE) is misadjusted or de-
fective.
• Replace the vacuum re-
lief valve (VRE)
The inlet filter cartridge (op-
tional) is partially clogged.
• Replace the inlet filter
cartridge.
Internal parts are worn or
damaged.
• Repair the machine (con-
tact Busch).

11 | Troubleshooting
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The machine runs very nois-
ily.
Worn coupling (CPL). • Replace the coupling
(CPL).
Oil level too low. • Top up oil.
Defective bearings. • Repair the machine (con-
tact Busch).
The machine runs too hot. Insufficient cooling. • Remove dust and dirt
from the machine.
Ambient temperature too
high.
• Observe the permitted
ambient temperature,
see Technical Data
[►21].
Temperature of the process
gases at the inlet too high.
• Observe the permitted
gas inlet temperature,
see Technical Data
[►21].
Oil level too low. • Top up oil.
For the solution of problems not mentioned in the troubleshooting chart contact your
Busch representative.