advertisement
Installation and
Operating Instructions
Vacuum Pumps
Mink MM 1402 AV
Busch LLC
516 Viking Drive
Virginia Beach, VA 23452
Phone: (757) 463-7800
Fax: (757) 463-7407
P/N 0872.923.941 / 0412
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . 3
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Start Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Noise Emission . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transport in Packaging . . . . . . . . . . . . . . . . . . . . . . 4
Transport without Packaging . . . . . . . . . . . . . . . . . . . 4
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Short-term Storage . . . . . . . . . . . . . . . . . . . . . . . . 4
Conservation . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation and Commissioning . . . . . . . . . . . . . . . . . . 5
Installation Prerequisites . . . . . . . . . . . . . . . . . . . . . 5
Mounting Position and Space . . . . . . . . . . . . . . . . . 5
Suction Connection . . . . . . . . . . . . . . . . . . . . . . 5
Gas Discharge . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Connection / Controls . . . . . . . . . . . . . . . . 6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting a NEMA-Motor with BoWex-Coupling . . . . . . . 6
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Checking Synchronising Gear Oil . . . . . . . . . . . . . . . 6
Connecting Electrically . . . . . . . . . . . . . . . . . . . . . 6
Connection Scheme Three-Phase Motor. . . . . . . . . . . 6
Connecting Lines/Pipes . . . . . . . . . . . . . . . . . . . . 7
Recording of Operational Parameters . . . . . . . . . . . . . 7
Operation Notes . . . . . . . . . . . . . . . . . . . . . . . . . 7
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Conveying Condensable Vapours . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . 8
Monthly: . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Every 3 Months: . . . . . . . . . . . . . . . . . . . . . . . 8
Every 6 Months: . . . . . . . . . . . . . . . . . . . . . . 8
Every Year: . . . . . . . . . . . . . . . . . . . . . . . . . 8
Every 20000 Operating Hours, At the Latest after 6 Years: . 8
Changing Synchronising Gear Oil. . . . . . . . . . . . . . . . . 8
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Removal from Service . . . . . . . . . . . . . . . . . . . . . . . . 9
Temporary Removal from Service. . . . . . . . . . . . . . . . . 9
Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dismantling and Disposal . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sectional Drawing . . . . . . . . . . . . . . . . . . . . . . . . . 13
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Spare Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
EC-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 15
Busch – All over the World in Industry . . . . . . . . . . . . . . 16
Preface
Congratulations on your purchase of the Busch vacuum pump. With watchful observation of the field’s requirements, innovation and steady development Busch delivers modern vacuum and pressure solutions worldwide.
These operating instructions contain information for
– product description,
– safety,
– transport,
– storage,
– installation and commissioning,
– maintenance,
– overhaul,
– troubleshooting and
– spare parts of the vacuum pump.
Version drive with integrated frequency inverter:
The drive with integrated frequency inverter is subject to a separate instruction manual.
For the purpose of these instructions, “handling” the vacuum pump means the transport, storage, installation, commissioning, influence on operating conditions, maintenance, troubleshooting and overhaul of the vacuum pump.
Prior to handling the vacuum pump these operating instructions shall be read and understood. If anything remains to be clarified please contact your Busch representative!
Keep these operating instructions and, if applicable, other pertinent operating instructions available on site.
Technical Data
Nominal suction capacity
(50Hz/60Hz) m³/h 400 / 480
Min. allowed suction pressure hPa (=mbar) abs
250
Motor nominal rating
(50Hz/60Hz)
Motor nominal speed
(50Hz/60Hz)
Sound pressure level
(EN ISO 2151) (50Hz/60Hz)
Ambient temperature range kW min
–1 dB (A)
7.5 / 9.5
3000 / 3600
-
Ambient pressure
°C 0 ... 40
Atmospheric pressure
Synchronisation gear oil quantity l 1.25
Synchronisation gear oil filled VS 220
Weight approx. (50Hz/60Hz) kg ~320
MM 1402 AV
Preface page 2
a b c d j k l e f g m n o p h i q a Cooling air outlet b Nameplate, vacuum pump c Directional arrow d Terminal box e Oil fill plug (=venting valve, underneath lid) f Eye bolt g Suction connection (without inlet air filter) h Cooling air inlet
I Gas discharge j Oil sight glass k Oil drain plug l Acoustic enclosure m Cylinder n Rotor o Suction connection (without inlet air filter) p Non-return valve q Position of condensate drain cock (optional for version
“Aqua”)
Product Description
Use
The vacuum pump is intended for
– the suction of
– air and other dry, non-aggressive, non-toxic and non-explosive gases
Conveying media with a lower or higher density than air leads to an increased thermal and/or mechanical load on the vacuum pump and is permissible only after prior consultation with Busch.
Max. allowed temperature of the inlet gas: 40 °C
Standard-version:
The gas shall be free from vapours that would condensate under the temperature and pressure conditions inside the vacuum pump.
Version “Aqua”:
The vacuum pump features the corrosion protection coating CPC and is capable of conveying water vapour (
Condensable Vapours). Conveyance of other vapours shall be agreed upon with Busch. Conveyance of water or other liquids in liquid phase increases the power consumption and shall therefore be avoided (risk of drive overload).
The vacuum pump is intended for the placement in a non-potentially explosive environment.
Max. permissible number of startings per hour: 12
Vacuum pumps MM 1402 AV are thermally suitable for continuous operation at intake pressures down to 250 hPa abs (250 mbar abs). By means of process control and/or vacuum relief valves it must be made sure that the minimum allowed intake pressure will not be underrun.
MM 1402 AV
Version “Aqua”:
The safety valve on the vacuum pump protects the vacuum pump against overheating only. It is not designed for frequent use and must therefore not be used as a system pressure regulating valve.
Principle of Operation
The vacuum pump works on the claw principle.
The components are dimensioned such, that on the one hand there is never contact between the two claws or between a claw and the cylinder, on the other hand the gaps are small enough to keep the clearance loss between the chambers low.
In order to avoid the suction of solids, the vacuum pump is equipped with a screen (715) in the suction connection.
In order to avoid reverse rotation after switching off, the vacuum pump is equipped with a non-return valve (p, 714).
The vacuum pump compresses the inlet gas absolutely oil-free. A lubrication of the pump chamber is neither necessary nor allowed.
Cooling
The vacuum pump is cooled by
– radiation of heat from the surface of the vacuum pump
– the air flow from the fan wheel of the drive motor
– the process gas
– the air flow from the fan wheel on the shaft of the vacuum pump
Start Controls
The vacuum pump comes without start controls. The control of the vacuum pump is to be provided in the course of installation.
Product Description page 3
Safety
Intended Use
Definition: For the purpose of these instructions, “handling” the vacuum pump means the transport, storage, installation, commissioning, influence on operating conditions, maintenance, troubleshooting and overhaul of the vacuum pump.
The vacuum pump is intended for industrial use. It shall be handled only by qualified personnel.
The allowed media and operational limits (
scription) and the installation prerequisites (
Prerequisites) of the vacuum pump shall be observed both by the manufacturer of the machinery into which the vacuum pump is to be incorporated and by the operator.
The maintenance instructions shall be observed.
Prior to handling the vacuum pump these installation and operating instructions shall be read and understood. If anything remains to be clarified please contact your Busch representative!
Safety Notes
The vacuum pump has been designed and manufactured according to state-of-the-art methods. Nevertheless, residual risks may remain.
These operating instructions highlight potential hazards where appropriate. Safety notes are tagged with one of the keywords DANGER,
WARNING and CAUTION as follows:
DANGER
_a
Disregard of this safety note will always lead to accidents with fatal or serious injuries.
WARNING
_a
Disregard of this safety note may lead to accidents with fatal or serious injuries.
CAUTION
_a
Disregard of this safety note may lead to accidents with minor injuries or property damage.
Noise Emission
For the sound pressure level in free field according to EN ISO 2151
Ú page 2: Technical Data.
CAUTION
_a4
The vacuum pump emits noise of high intensity in a narrow band.
Risk of damage to the hearing.
Persons staying in the vicinity of a non noise insulated vacuum pump over extended periods shall wear ear protection.
Transport
Transport in Packaging
Packed on a pallet the vacuum pump is to be transported with a forklift.
Transport without Packaging
In case the vacuum pump is packed in a cardboard box with inflated cushions:
K
Remove the inflated cushions from the box
MM 1402 AV
In case the vacuum pump is in a cardboard box cushioned with rolled corrugated cardboard:
K
Remove the corrugated cardboard from the box
In case the vacuum pump is laid in foam:
K
Remove the foam
In case the vacuum pump is bolted to a pallet or a base plate:
K
Remove the bolting between the vacuum pump and the pallet/base plate
In case the vacuum pump is fastened to the pallet by means of tightening straps:
K
Remove the tightening straps
CAUTION
_af
Do not walk, stand or work under suspended loads.
l l
Make sure that the eyebolt (f) is in faultless condition (replace a damaged, e.g. bent eyebolt with a new one)
Make sure that the eyebolt (f) is fully screwed in and tightened by hand l
Attach lifting gear securely to the eyebolt (f) on the synchronising gear
When the vacuum pump is equipped with a very heavy drive motor and would hang very inclined (>10 °) on the synchronising gear eyebolt alone:
K
Attach lifting gear securely to the eyebolts on the synchronising gear (f) and on the drive motor l l
In case the drive motor comes without an eyebolt or the eyebolt on the drive motor is located at an unfavourable position:
K
Loop a belt/rope with suitable length and strength around the flange of the drive motor
Attach the lifting gear to a crane hook with safety latch
Lift the vacuum pump with a crane
In case the vacuum pump was bolted to a pallet or a base plate:
K
Remove the stud bolts from the rubber feet
Storage
Short-term Storage
l
Make sure that the suction connection and the gas discharge are closed (leave the provided plugs in) l
Store the vacuum pump
– if possible in original packaging,
– indoors,
– dry,
– dust free and
– vibration free
Conservation
In case of adverse ambient conditions (e.g. aggressive atmosphere, frequent temperature changes) conserve the vacuum pump immediately.
In case of favourable ambient conditions conserve the vacuum pump if a storage of more than 3 months is scheduled.
l
Make sure that all ports are firmly closed; seal all ports that are not sealed with PTFE-tape, gaskets or o-rings with adhesive tape
Note: VCI stands for “volatile corrosion inhibitor”. VCI-products (film, paper, cardboard, foam) evaporate a substance that condenses in molecular thickness on the packed good and by its electro-chemical properties effectively suppresses corrosion on metallic surfaces. However,
VCI-products may attack the surfaces of plastics and elastomers. Seek advice from your local packaging dealer! Busch uses CORTEC
VCI 126 R film for the overseas packaging of large equipment.
Safety page 4
l l
Wrap the vacuum pump in VCI film
Store the vacuum pump
– if possible in original packing,
– indoors,
– dry,
– dust free and
– vibration free.
For commissioning after conservation: l
Make sure that all remains of adhesive tape are removed from the ports l
Commission the vacuum pump as described in the chapter Installation and Commissioning (
Installation and
Commissioning
Installation Prerequisites
CAUTION
_a
In case of non-compliance with the installation prerequisites, particularly in case of insufficient cooling:
Risk of damage or destruction of the vacuum pump and adjoining plant components!
Risk of injury!
The installation prerequisites must be complied with.
l
Make sure that the integration of the vacuum pump is carried out such that the essential safety requirements of the Machine Directive 2006/42/EC are complied with (in the responsibility of the designer of the machinery into which the vacuum pump is to be incorporated;
Ú page 15: note in the EC-Declaration of Confor-
mity)
Mounting Position and Space
l
Make sure that the environment of the vacuum pump is not potentially explosive l
Make sure that the following ambient conditions will be complied with: l l
– ambient temperature: 0 ... 40 °C
– ambient pressure: atmospheric l
Make sure that the environmental conditions comply with the protection class of the drive motor (according to the nameplate) l
Make sure that the vacuum pump will be placed or mounted horizontally
Make sure that the base for placement / mounting base is even
Make sure that in order to warrant a sufficient cooling there will be a clearance of minimum 1 m between the vacuum pump and nearby walls l
Make sure that no heat sensitive parts (plastics, wood, cardboard, paper, electronics) will touch the surface of the vacuum pump l
Make sure that the installation space or location is vented such that a sufficient cooling of the vacuum pump is warranted
CAUTION
_ac
During operation the surface of the vacuum pump may reach temperatures of more than 70 °C.
Risk of burns!
MM 1402 AV l l
Make sure that the vacuum pump will not be touched inadvertently during operation, provide a guard if appropriate
Make sure that the sight glass (j, 76) of the synchronising gear will remain accessible
In case the synchronising gear oil change is planned to be carried out on location:
K
Make sure that the drain port (k, 80) and the filling port (e,
72) of the synchronising gear will remain easily accessible
Suction Connection
CAUTION
_a
Intruding foreign objects or liquids can destroy the vacuum pump.
In case the inlet gas can contain dust or other foreign solid particles:
K
Make sure that a suitable filter (5 micron or less) is installed upstream the vacuum pump l
Make sure that the suction line fits to the suction connection (g) of the vacuum pump l
Make sure that the gas will be sucked through a vacuum-tight flexible hose or a pipe
In case of using a pipe:
K
Make sure that the pipe will cause no stress on the vacuum pump’s connection, if necessary use an expansion joint l
Make sure that the line size of the suction line over the entire length is at least as large as the suction connection (g) of the vacuum pump
In case the length of the suction line exceeds 2 m it is prudent to use larger line sizes in order to avoid a loss of efficiency and an overload of the vacuum pump. Seek advice from your Busch representative!
In case the vacuum shall be maintained after shutdown of the vacuum pump:
K
Provide a manual or automatic operated valve (= non-return valve) in the suction line
Version “Aqua”, if very humid process gases and/or adverse operating cycles bear the risk, that condensates remain in the vacuum pump:
K
Provide a shut-off valve, a drip-leg and a drain cock in the suction line, so that condensates can be drained from the suction line
K
Provide a valve for the unthrottled suction of ambient air (ambient air valve) between the shut-off valve and the vacuum pump (in order to dry the vacuum pump after process end).
K
For non ultimate-pressure-proof vacuum pumps provide a vacuum relief valve (suitable for continuous operation) for the throttled aspiration of ambient air during warming up.
K
Make sure that the anti-pulsation chamber is equipped with a condensate drain cock (q) (optional; if the condensate drain cock is missing contact the Busch service) l
Make sure that the suction line does not contain foreign objects, e.g. welding scales
Gas Discharge
The discharged gas must flow without obstruction. It is not permitted to shut off or throttle the discharge line or to use it as a pressurised air source.
The following guidelines for the discharge line do not apply, if the aspirated air is discharged to the environment right at the vacuum pump.
l
Make sure that the discharge line fits to the gas discharge (i) of the vacuum pump
In case of using a pipe:
K
Make sure that the pipe will cause no stress on the vacuum pump’s connection, if necessary use an expansion joint l
Make sure that the line size of the discharge line over the entire length is at least 2"
Installation and Commissioning page 5
In case the length of the discharge line exceeds 2 m it is prudent to use larger line sizes in order to avoid a loss of efficiency and an overload of the vacuum pump. Seek advice from your Busch representative!
l
Make sure that the discharge line either slopes away from the vacuum pump or provide a liquid separator or a drip leg with a drain cock, so that no liquids can back up into the vacuum pump
Electrical Connection / Controls
l
Make sure that the stipulations acc. to the EMC-Directive
2004/108/EC and Low-Voltage-Directive 2006/95/EC as well as the EN-standards, electrical and occupational safety directives and the local or national regulations, respectively, are complied with
(this is the responsibility of the designer of the machinery into which the vacuum pump is to be incorporated;
the EC-Declaration of Conformity).
l
Make sure that the power supply for the drive motor is compatible with the data on the nameplate of the drive motor l
Make sure that an overload protection according to EN 60204-1 is provided for the drive motor l
Make sure that the drive of the vacuum pump will not be affected by electric or electromagnetic disturbance from the mains; if necessary seek advice from the Busch service
In case of mobile installation:
K
Provide the electrical connection with grommets that serve as strain-relief
Installation
Mounting a NEMA-Motor with
BoWex-Coupling
For certain markets the vacuum pump is available without motor, but with a NEMA-adaptor flange and a BoWex-coupling.
I
II
III
IV
Mounting
l
Make sure that the installation prerequisites (
plied with l
Set down or mount the vacuum pump at its location
Checking Synchronising Gear Oil
The vacuum pump is delivered with oil filled synchronising gear.
The level shall be slightly above the middle of the sight glass (j, 76).
l
Check on the sight glass (j, 76) that the proper amount of oil is filled
Connecting Electrically
WARNING
_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention regulation.
CAUTION
_a
The connection schemes given below are typical. Depending on the specific order or for certain markets deviating connection schemes may apply.
Risk of damage to the drive motor!
The inside of the terminal box shall be checked for drive motor connection instructions/schemes.
Note: For the connection of a drive with integrated frequency inverter see the separate operating instructions!
l l
Electrically connect the drive motor
Connect the protective earth conductor
Connection Scheme Three-Phase Motor
Delta connection (low voltage):
V
VI l l l l l l l l l l
Remove the NEMA-adaptor flange (I) from the vacuum pump
Pull the elastomer part (V) together with the hub (III) off the shaft of the vacuum pump
Mount the NEMA-adaptor flange (I) on the motor (the bolts (II) are not part of the Busch scope of delivery)
Undo the cylinder screws (VI) and remove the elastomer part (V) from the hub (III)
Make sure that the parallel key is inserted into the motor shaft
Push the hub (III) onto the motor shaft such that the mounting face of the hub (III) will be located 16±1 mm before the mounting face of the NEMA-adaptor flange (I) (
Ú sketch)
Fasten the hub (III) on the motor shaft using the set screw (IV)
Apply thread locking agent on the threads of the cylinder screws (VI)
Mount the elastomer part (V) on the hub (III) with the cylinder screws (VI) and tighten the cylinder screws with 14 Nm
Mount the motor on the vacuum pump
MM 1402 AV
Star connection (high voltage):
Installation and Commissioning page 6
Double star connection, multi-voltage motor with 9 terminals (low voltage):
Star connection, multi-voltage motor with 9 terminals (high voltage):
CAUTION
_a
Operation in the wrong direction of rotation can destroy the vacuum pump in short time.
Prior to starting-up it must be made sure that the vacuum pump is operated in the proper direction (clockwise rotating field).
Version with three-phase motor:
K
Determine the intended direction of rotation with the arrow (c)
(stuck on or cast)
K
K
“Bump” the drive motor
Watch the fan wheel of the drive motor and determine the direction of rotation just before the fan wheel stops
If the rotation must be changed:
K
Switch any two of the drive motor wires (three-phase motor)
Connecting Lines/Pipes
l
Connect the suction line l
Connect the discharge line
Installation without discharge line:
K
Make sure that the gas discharge (i) is open l
Make sure that all provided covers, guards, hoods etc. are mounted l
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
Recording of Operational Parameters
As soon as the vacuum pump is operated under normal operating conditions: l
Measure the drive motor current and record it as reference for future maintenance and troubleshooting work
MM 1402 AV
Operation Notes
Use
CAUTION
_a
The vacuum pump is designed for operation under the conditions described below.
In case of disregard risk of damage or destruction of the vacuum pump and adjoining plant components!
Risk of injury!
The vacuum pump must only be operated under the conditions described below.
The vacuum pump is intended for
– the suction of
– air and other dry, non-aggressive, non-toxic and non-explosive gases
Conveying media with a lower or higher density than air leads to an increased thermal and/or mechanical load on the vacuum pump and is permissible only after prior consultation with Busch.
Max. allowed temperature of the inlet gas: 40 °C
Standard-version:
The gas shall be free from vapours that would condensate under the temperature and pressure conditions inside the vacuum pump.
Version “Aqua”:
The vacuum pump features the corrosion protection coating CPC and is capable of conveying water vapour (
Condensable Vapours). Conveyance of other vapours shall be agreed upon with Busch. Conveyance of water or other liquids in liquid phase increases the power consumption and shall therefore be avoided (risk of drive overload).
The vacuum pump is intended for the placement in a non-potentially explosive environment.
Max. permissible number of startings per hour: 12
Vacuum pumps MM 1402 AV are thermally suitable for continuous operation at intake pressures down to 250 hPa abs (250 mbar abs). By means of process control and/or vacuum relief valves it must be made sure that the minimum allowed intake pressure will not be underrun.
Version “Aqua”:
The safety valve on the vacuum pump protects the vacuum pump against overheating only. It is not designed for frequent use and must therefore not be used as a system pressure regulating valve.
CAUTION
_ac
During operation the surface of the vacuum pump may reach temperatures of more than 70 °C.
Risk of burns!
The vacuum pump shall be protected against contact during operation, it shall cool down prior to a required contact or heat protection gloves shall be worn.
CAUTION
_a4
The vacuum pump emits noise of high intensity in a narrow band.
Risk of damage to the hearing.
Persons staying in the vicinity of a non noise insulated vacuum pump over extended periods shall wear ear protection.
Installation and Commissioning page 7
l l l l
Make sure that all provided covers, guards, hoods etc. remain mounted
Make sure that protective devices will not be disabled
Make sure that cooling air inlets and outlets will not be covered or obstructed and that the cooling air flow will not be affected adversely in any other way
Make sure that the installation prerequisites (
Prerequisites) are complied with and will remain complied with, particularly that a sufficient cooling will be ensured
Conveying Condensable Vapours
Version “Aqua”:
CAUTION
_a
Due to the corrosion protection coating CPC the vacuum pump is capable of conveying water vapour.
Very humid process gases and/or adverse operating cycles can lead to residual condensates, though, which cause corrosion.
If this is the case, it is necessary to counteract residual condensates by warming up the vacuum pump, conveyance of ambient air after process end and regular draining of the anti-pulsation chamber (q).
K
K
Close the shut-off valve in the suction line
Warm up the vacuum pump for approx. 10 minutes
At process start:
K
Open the shut-off valve in the suction line
At the process end:
K
K
K
K
K
Close the shut-off valve in the suction line
Open the ambient air valve
Operate the vacuum pump for another approx. 10 minutes
Close the ambient air valve
Regularly drain condensate from the anti-pulsation chamber
(q)
Maintenance
DANGER
_age32
In case the vacuum pump conveyed gas that was contaminated with foreign materials which are dangerous to health, harmful material can reside in filters.
Danger to health during inspection, cleaning or replacement of filters.
Danger to the environment.
Personal protective equipment must be worn during the handling of contaminated filters.
Contaminated filters are special waste and must be disposed of separately in compliance with applicable regulations.
CAUTION
_ac
During operation the surface of the vacuum pump may reach temperatures of more than 70 °C.
Risk of burns!
l
Prior to disconnecting connections make sure that the connected pipes/lines are vented to atmospheric pressure
Maintenance Schedule
Note: The maintenance intervals depend very much on the individual operating conditions. The intervals given below shall be considered as starting values which should be shortened or extended as appropriate.
Particularly heavy duty operation, such like high dust loads in the environment or in the process gas, other contaminations or ingress of process material, can make it necessary to shorten the maintenance intervals significantly.
Monthly:
l
Make sure that the vacuum pump is shut down and locked against inadvertent start up
In case an inlet air filter is installed:
K
Check the inlet air filter, if necessary replace
In case of operation in a dusty environment:
K
Clean as described under
Every 3 Months:
l
Make sure that the vacuum pump is shut down l
Check the level of the synchronising gear oil
The level shall be slightly above the middle of the sight glass (j, 76).
The level of the synchronising gear should stay constant over the lifetime of the oil. If the level does fall, the gear is leaky and the vacuum pump requires repair (Busch service).
Every 6 Months:
l
Make sure that the housing is free from dust and dirt, clean if necessary l
Make sure that the vacuum pump is shut down and locked against inadvertent start up l
Remove the acoustic enclosure
Note: Make sure that the foam mats do not get soaked with water l
Clean the fan cowlings, fan wheels, the ventilation grilles and cooling fins l
Mount the acoustic enclosure
Every Year:
l
Make sure that the vacuum pump is shut down and locked against inadvertent start up
In case an inlet air filter is installed:
K
Replace the inlet air filter l
Check the inlet screen (715), clean if necessary
Every 20000 Operating Hours, At the Latest after
6 Years:
Note: The change interval of 20000 operating hours is valid for the gear oil
VS 220 only. Other gear oils reduce the change interval.
l
Change the synchronising gear oil
Changing Synchronising Gear Oil
l
Make sure that the vacuum pump is shut down and locked against inadvertent start up
MM 1402 AV
Maintenance page 8
72 424 615
76/77 80/81 l l l l l l l l l l l l l l
Remove the eyebolt (f)
Remove the lid (424)
Undo the venting valve (e, 72) for venting
Place a drain tray underneath the drain plug (k, 80)
Open the drain plug (k, 80) and drain the oil
Make sure that the seal ring on the drain plug (k, 80) is serviceable, replace if necessary
Firmly reinsert the drain plug (k, 80) together with the seal ring
Remove the venting valve (e, 72) completely
Fill in new gear oil until the level is slightly above the middle of the sight glass (j, 76)
Make sure that the seal ring on the venting valve (e, 72) is undamaged, if necessary replace the venting valve (e, 72)
Firmly reinsert the venting valve (e, 72) together with the seal ring
Mount the lid (424)
Reinsert the eyebolt (f)
Dispose of the used oil in compliance with applicable regulations
Overhaul
CAUTION
_a
In order to achieve best efficiency and a long life the vacuum pump was assembled and adjusted with precisely defined tolerances.
This adjustment will be lost during dismantling of the vacuum pump.
It is therefore strictly recommended that any dismantling of the vacuum pump that is beyond of what is described in this manual shall be done by Busch service.
DANGER
_age32
In case the vacuum pump conveyed gas that was contaminated with foreign materials which are dangerous to health, harmful material can reside in pores, gaps and internal spaces of the vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
Prior to shipping the vacuum pump shall be decontaminated as good as possible and the contamination status shall be stated in a
“Declaration of Contamination” (form downloadable from www.busch-vacuum.com).
Busch service will only accept vacuum pumps that come with a completely filled in and legally binding signed “Declaration of Contamination” (form downloadable from www.busch-vacuum.com).
Removal from Service
Temporary Removal from Service
l
Prior to disconnecting pipes/lines make sure that all pipes/lines are vented to atmospheric pressure
Recommissioning
l
Observe the chapter Installation and Commissioning (
Dismantling and Disposal
DANGER
_age32
In case the vacuum pump conveyed gas that was contaminated with foreign materials which are dangerous to health, harmful material can reside in pores, gaps and internal spaces of the vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
During dismantling of the vacuum pump personal protective equipment must be worn.
The vacuum pump must be decontaminated prior to disposal.
l l
Drain the oil
Make sure that materials and components to be treated as special waste have been separated from the vacuum pump l
Make sure that the vacuum pump is not contaminated with harmful foreign material l l
According to the best knowledge at the time of printing of this manual the materials used for the manufacture of the vacuum pump involve no risk.
Dispose of the used oil in compliance with applicable regulations
Dispose of the vacuum pump as scrap metal
MM 1402 AV
Maintenance page 9
Troubleshooting
WARNING
_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or equivalent national accident prevention regulation.
CAUTION
_ac
During operation the surface of the vacuum pump may reach temperatures of more than 70 °C.
Risk of burns!
Let the vacuum pump cool down prior to a required contact or wear heat protection gloves.
Problem
The vacuum pump does not reach the usual pressure
The drive motor draws a too high current
(compare with initial value after commissioning)
Evacuation of the system takes too long
Possible Cause
The vacuum system or suction line is not leak-tight
Remedy
Check the hose or pipe connections for possible leak
In case a vacuum relief valve/regulating system is installed:
The vacuum relief valve/regulating system is misadjusted or defective
The screen (715) in the suction connection (g) is partially clogged
Adjust, repair or replace, respectively
Clean the screen (715)
If cleaning is required too frequently install a filter upstream
Clean or replace the inlet air filter, respectively
In case a filter is installed on the suction connection (g):
The filter on the suction connection (g) is partially clogged
Partial clogging in the suction, discharge or pressure line
Long suction, discharge or pressure line with too small diameter
The valve disk of the inlet non-return valve is stuck in closed or partially open position
Remove the clogging
Use larger diameter
Disassemble the inlet, clean the screen (715) and the valve (p, 714) as required and reassemble
Repair the vacuum pump (Busch service)
Check the process, if applicable The gas conveyed by the vacuum pump smells displeasing
The vacuum pump does not start
Internal parts are worn or damaged
Process components evaporating under vacuum
The drive motor is not supplied with the correct voltage or is overloaded
The drive motor starter overload protection is too small or trip level is too low
One of the fuses has blown
The connection cable is too small or too long causing a voltage drop at the vacuum pump
Supply the drive motor with the correct voltage
Compare the trip level of the drive motor starter overload protection with the data on the nameplate, correct if necessary
In case of high ambient temperature: set the trip level of the drive motor starter overload protection 5 percent above the nominal drive motor current
Check the fuses
Use sufficiently dimensioned cable
MM 1402 AV
Troubleshooting page 10
The vacuum pump is blocked
The drive motor is running, but the vacuum pump stands still
The vacuum pump starts, but labours or runs noisily or rattles
The drive motor draws a too high current
(compare with initial value after commissioning)
The vacuum pump runs very noisily
The vacuum pump runs very hot
The vacuum pump or the drive motor is blocked
The drive motor is defective
Solid foreign matter has entered the vacuum pump
Corrosion in the vacuum pump from remaining condensate
Version with three-phase motor:
The vacuum pump was run in the wrong direction
The coupling between the drive motor and the vacuum pump is defective
Make sure the drive motor is disconnected from the power supply
Remove the fan cover
Try to turn the drive motor with the vacuum pump by hand
If the unit is still frozen: remove the drive motor and check the drive motor and the vacuum pump separately
If the vacuum pump is blocked:
Repair the vacuum pump (Busch service)
Replace the drive motor (Busch service)
(the proper function of the fan wheel requires the precise adjustment of the coupling on the motor shaft and on the pump shaft; therefore the motor can be mounted by the Busch service only)
Repair the vacuum pump (Busch service)
Make sure the suction line is equipped with a screen
If necessary additionally provide a filter
Repair the vacuum pump (Busch service)
Check the process
Observe the chapter Conveying Condensable
Vapours (
Repair the vacuum pump (Busch service)
When connecting the vacuum pump make sure the vacuum pump will run in the correct direction (
Replace the coupling element
(the proper function of the fan wheel requires the precise adjustment of the coupling on the motor shaft and on the pump shaft; therefore the coupling element can be replaced by the
Busch service only)
Loose connection(s) in the drive motor terminal box
Version with three-phase-motor:
Not all drive motor coils are properly connected
The drive motor operates on two phases only
Check the proper connection of the wires against the connection diagram
(particularly on motors with six coils)
Tighten or replace loose connections
Version with three-phase motor:
The vacuum pump runs in the wrong direction
Foreign objects in the vacuum pump
Stuck bearings
Verification and rectification
lation and Commissioning
Repair the vacuum pump (Busch service)
Defective bearings
Worn coupling element
Low oil level in the synchronising gear
Repair the vacuum pump (Busch service)
Replace the coupling element
The synchronising gear is leaky
Repair the vacuum pump (Busch service)
Repair the vacuum pump (Busch service) Synchronising gear damaged due to operation with low oil level
Insufficient air ventilation Make sure that the cooling of the vacuum pump is not impeded by dust/dirt
Clean the fan cowlings, the fan wheels, the ventilation grilles and the cooling fins
Install the vacuum pump in a narrow space only if sufficient ventilation is ensured
MM 1402 AV
Troubleshooting page 11
Ambient temperature too high
Temperature of the inlet gas too high
Mains frequency or voltage outside tolerance range
Partial clogging of filters or screens
Partial clogging in the suction, discharge or pressure line
Long suction, discharge or pressure line with too small diameter
Observe the permitted ambient temperatures
Observe the permitted temperatures for the inlet gas
Provide a more stable power supply
Remove the clogging
Use larger diameter
MM 1402 AV
Troubleshooting page 12
Sectional Drawing
MM 1402 AV
Sectional Drawing page 13
Spare Parts
Note: When ordering spare parts or accessories acc. to the table below please always quote the type (“Type”) and the serial no. (“No”) of the vacuum pump. This will allow Busch service to check if the vacuum pump is compatible with a modified or improved part.
The exclusive use of genuine spare parts and consumables is a prerequisite for the proper function of the vacuum pump and for the granting of warranty, guarantee or goodwill.
Your point of contact for service and spare parts in the United
Kingdom:
Busch (UK) Ltd.
Hortonwood 30-35
Telford
Shropshire
TF1 7YB
Tel:
Fax:
01952 677 432
01952 677 423
Your point of contact for service and spare parts in Ireland:
Busch Ireland Ltd.
A10-11 Howth Junction Business Centre
Kilbarrack, Dublin 5
Tel:
Fax:
+353 (0)1 8321466
+353 (0)1 8321470
Your point of contact for service and spare parts in the USA:
Busch lnc.
516-B Viking Drive
Virginia Beach, VA 23452
Tel: 1-800-USA-PUMP (872-7867)
Your point of contact for service and spare parts in Canada:
Busch Vacuum Technics Inc.
1740, Boulevard Lionel Bertrand
Boisbriand (Montréal)
Québec J7H 1N7
Tel: 450 435 6899
Fax: 450 430 5132
Your point of contact for service and spare parts in Australia:
Busch Australia Pty. Ltd.
30 Lakeside Drive
Broadmeadows, Vic. 3047
Tel: (03) 93 55 06 00
Fax: (03) 93 55 06 99
Your point of contact for service and spare parts in New Zealand:
Busch New Zealand Ltd.
Unit D, Arrenway Drive
Albany, Auckland 1311
P O Box 302696
North Harbour, Auckland 1330
Tel:
Fax:
0-9-414 7782
0-9-414 7783
Find the list of Busch companies all over the world (by the time of the publication of these installation and operating instructions) on
Ú page 16 (rear cover page).
Find the up-to-date list of Busch companies and agencies all over the world on the internet at www.busch-vacuum.com.
76
77
80
81
Pos.
Part
72
Venting valve (=oil fill plug) with seal ring
Sight glass
Seal ring for sight glass
714
Plug with magnet and seal ring
Seal ring for plug with magnet
Inlet flange, lower part, with non-return valve
Qty
1
1
1
1
1
1
Part no.
0543 107 407
0583 000 001
0480 000 271
0415 134 870
0482 137 352
0916 000 672
715 Screen 1 0534 000 094
Spare Parts Kits
Spare parts kit
Overhaul kit (incl. set of seals, marking “VT” and “DT”; insert for flexible coupling for Rotex only)
Set of seals (marking “DT”)
Part no.
0993 156 913
0990 156 917
Oil
Denomination VS 220
MM 1402 AV
Spare Parts page 14
EC-Declaration of Conformity
Note: This Declaration of Conformity and the -mark affixed to the nameplate are valid for the vacuum pump within the Busch-scope of delivery.
When this vacuum pump is integrated into a superordinate machinery the manufacturer of the superordinate machinery (this can be the operating company, too) must conduct the conformity assessment process acc. to the Directive Machinery 2006/42/EC for the superordinate machine, issue the Declaration of Conformity for it and affix the -mark.
For maintenance of this Declaration of Conformity of vacuum pumps without a drive may only be used a drive with a written consent of Busch.
We
Busch Produktions GmbH
Schauinslandstr. 1
79689 Maulburg
Germany
declare that vacuum pumps MM 1402 AV in accordance with the European Directives:
–
“Machinery” 2006/42/EC,
–
“Electrical Equipment Designed for Use within Certain Voltage Limits” (so called “Low Voltage”) 2006/95/EC,
–
“Electromagnetic Compatibility” 2004/108/EC, have been designed and manufactured to the following specifications:
Standard Title of the Standard
Harmonised Standards
EN ISO 12100-1
EN ISO 12100-2
Safety of machinery - Basic concepts, general principles of design - Part 1 and 2
EN ISO 13857
EN 1012-1
EN 1012-2
EN ISO 2151
Safety of machinery - Safety distances to prevent hazard zones being reached by the upper and lower limbs
Compressors and vacuum pumps - Safety requirements - Part 1 and 2
EN 60204-1
EN 61000-6-1
EN 61000-6-2
EN 61000-6-3
EN 61000-6-4
Acoustics - Noise test code for compressors and vacuum pumps - Engineering method (grade 2)
Safety of machinery - Electrical equipment of machines - Part 1: General requirements
Electromagnetic compatibility (EMC) - Generic immunity standards
Electromagnetic compatibility (EMC) - Generic emission standards
Manufacturer Person authorised to compile the technical file
Dr.-Ing. Karl Busch
General director
Andrej Riwe
Technical writer
MM 1402 AV
EC-Declaration of Conformity page 15
Busch – All over the World in Industry
Argentina
Busch Argentina S.R.L.
Santo Domingo 3076
C1293AGN-Capital Federal
Buenos Aires
Tel: +54 11 4302 8183
Fax: +54 11 4301 0896 e-mail: [email protected]
Australia
Busch Australia Pty. Ltd.
30 Lakeside Drive
Broadmeadows, Vic. 3047
Tel: +61 3 93 55 06 00
Fax: +61 3 93 55 06 99 e-mail: [email protected]
France
Busch France S.A.S.
16, Rue du Bois Chaland
91090 Lisses
Tel: +33 16989 8989
Fax: +33 16989 8958 e-mail: [email protected]
Germany
Dr.-Ing. K. Busch GmbH
Schauinslandstr. 1
79689 Maulburg
Tel: +49 76 22 6 81-0
Fax: +49 76 22 6 81-194 e-mail: [email protected]
Italy
Busch Italia S.r.l.
Via Ettore Majorana, 16
20054 Nova Milanese
Tel: +39 0362 370 91
Fax: +39 0362 370 999 e-mail: [email protected]
www.busch-vacuum.com
Japan
Nippon Busch K.K.
1-23-33, Megumigaoka
Hiratsuka City, Kanagawa
Japan 259-1220
Tel: +81 463-50-4000
Fax: +81 463-50-4004 e-mail: [email protected]
Singapore
Busch Vacuum Singapore Pte Ltd
20 Shaw Road
Unit 01-03 Ching Shine Building
Singapore 367956
Tel: +65 6488 0866
Fax: +65 6288 0877 e-mail: [email protected]
South Africa
Busch Vacuum South Africa (Pty) Ltd.
Denver
Johannesburg
Tel: +27 11 856 0650/6
Fax: +27 11 856 0625 e-mail: [email protected]
Austria
Busch Austria GmbH
Industriepark Nord
2100 Korneuburg
Tel: +43 2262 / 756 65-0
Fax: +43 2262 / 756 65-20 e-mail: [email protected]
Belgium
Busch N.V.
Kruinstraat 7
9160 Lokeren
Tel: +32 9 / 348 47 22
Fax: +32 9 / 348 65 35 e-mail: [email protected]
Brazil
Busch do Brasil Ltda.
Rod. Edgard Máximo Zambotto, Km 64
13240-000 Jarinu-SP
Tel: +55 11-4016 1400/5277
Fax: +55 11-4016 5399 e-mail: [email protected]
Canada
Busch Vacuum Technics Inc.
1740, Lionel Bertrand
Boisbriand, Québec J7H 1N7
Tel: +1 450 435 6899
Fax: +1 450 430 5132 e-mail: [email protected]
Chile
Busch Chile S. A.
Calle El Roble N° 375-G
Lampa - Santiago
Tel: +56 2 3765136
Fax: +56 2 7387092 e-mail: [email protected]
Dr.-Ing. K. Busch GmbH
Niederlassung Nord
Ernst-Abbe-Str. 1-3
25451 Quickborn
Tel: +49 41 06 7 99 67-0
Fax: +49 41 06 7 99 67-77
Dr.-Ing. K. Busch GmbH
Niederlassung West
Nordring 35
64807 Dieburg
Tel: +49 60 71 92 82-0
Fax: +49 60 71 14 71
Dr.-Ing. K. Busch GmbH
Außenstelle Neuenrade
Breslauer Str. 36
58809 Neuenrade
Tel: +49 23 92 50 29 92
Fax: +49 23 92 50 72 11
Dr.-Ing. K. Busch GmbH
Niederlassung Süd-Ost
Gewerbestraße 3
90579 Langenzenn
Tel: +49 91 01 90 25-0
Fax: +49 91 01 90 25-25
Dr.-Ing. K. Busch GmbH
Außenstelle Zella-Mehlis
Am Rain 11
98544 Zella-Mehlis
Tel: +49 36 82 46 92 71
Fax: +49 36 82 46 92 73
Dr.-Ing. K. Busch GmbH
Außenstelle Meitingen-Ostendorf
Grüntenweg 8
86405 Meitingen-Ostendorf
Tel: +49 82 71 426-341
Fax: +49 82 71 426-342
Korea
Busch Korea Ltd.
248-2, Ichi-ri, Majang-Myun,
Icheon-si, Kyunggi-Do
Tel: +82 31 321 8114
Fax: +82 31 321 8877 e-mail: [email protected]
Malaysia
Busch Malaysia Sdn Bhd.
4&6, Jalan Taboh 33/22, Seksyen 33
Shah Alam Technology Park
40400 Shah Alam
Selangor Darul Ehsan
Tel: +60 3 5122 2128
Fax +60 3 5122 2108 e-mail: [email protected]
Mexico
Busch Vacuum Mexico S. de R.L. de C.V.
Tlaquepaque 4865, Los Altos
Monterrey, Nuevo Leon
Mexico 64370
Tel: +52 81 8311-1385
Fax: +52 81 8311-1386 e-mail: [email protected]
Netherlands
Busch B.V.
Pompmolenlaan 2
3447 GK Woerden
Tel: +31 348-462300
Fax: +31 348-422939 e-mail: [email protected]
New Zealand
Busch New Zealand Ltd.
Unit D, 41 Arrenway Drive
Albany, Auckland 1330
Tel: +64 9 414 7782
Fax: +64 9 414 7783 e-mail: [email protected]
Spain
Busch Ibérica S.A.
Pol. Ind. Coll de la Manya
C/ Jaume Ferran, 6-8
08403 Granollers
Tel: +34 93 861 61 60
Fax: +34 93 840 91 56 e-mail: [email protected]
Sweden
Busch Vakuumteknik AB
Bråta Industriområde
435 33 Mölnlycke
Tel: +46 31-338 00 80
Fax: +46 31-338 00 89 e-mail: [email protected]
Switzerland
Busch AG
Waldweg 22
4312 Magden
Tel: +41 61 / 845 90 90
Fax: +41 61 / 845 90 99 e-mail: [email protected]
Taiwan
Busch Taiwan Corporation
1F. No. 69, Sec. 3, Beishen Road
Shenkeng Township,
Taipei County 222
Tel: +886 2 2662 0775
Fax: +886 2 2662 0796 e-mail: [email protected]
China
Busch Vacuum (Shanghai) Co., Ltd
No.5, Lane 195 Xipu Road
Songjiang Industrial Estate East New Zone
Shanghai 201611 PRC
Tel: +86 (0)21 67600800
Fax: +86 (0)21 67600700 e-mail: [email protected]
Hungary
Busch Vacuum Kft.
Bentonit u. 8
1225 Budapest
Tel: +36 1 207 6135
Fax: +36 1 207 6136 e-mail: [email protected]
Norway
Busch Vakuumteknikk AS
Hestehagen 2
1440 Drøbak
Tel: +47 64 98 98 50
Fax: +47 64 93 66 21 e-mail: [email protected]
Thailand
Busch Vacuum (Thailand) Co., Ltd.
888/30 Moo19, Soi Yingcharoen,
Bangplee-Tamru Road,
Bangpleeyai, Bangplee,
S amutprakarn 10540
Tel: +66 2-382-5428
Fax: +66 2-382-5429 e-mail: [email protected]
Czech Republic
Busch Vakuum s.r.o.
Pra
ákova 10
619 00 Brno-Horní Heršpice
Tel: +420 543 42 48 55
Fax: +420 543 42 48 56 e-mail: [email protected]
India
Busch Vacuum India Pvt Ltd.
Plot No. 110, Sector 7
PCNTDA, Bhosari
Pune 411026
Tel: +91 206410 2886
Fax: +91 202711 2838 e-mail: [email protected]
Poland
Busch Polska Sp. z o.o.
Ul. Chopina 27
87-800 W
»oc»awek
Tel: +48 54 2315400
Fax: +48 54 2327076 e-mail: [email protected]
Turkey
VAKUTEK
Emlak Kredi Ishani No: 179
34672 Üsküdar-Istanbul
Tel: +90 216 310 0573
Fax: +90 216 343 5126 e-mail: [email protected]
Denmark
Busch Vakuumteknik A/S
Parallelvej 11
8680 Ry
Tel: +45 87 88 07 77
Fax: +45 87 88 07 88 e-mail: [email protected]
Finland
Busch Vakuumteknik Oy
Sinikellontie 4
01300 Vantaa
Tel: +358 9 774 60 60
Fax: +358 9 774 60 666 e-mail: [email protected]
MM 1402 AV
Ireland
Busch Ireland Ltd.
A10-11 Howth Junction Business Centre
Kilbarrack, Dublin 5
Tel: +353 1 832 1466
Fax: +353 1 832 1470 e-mail: [email protected]
Israel
Busch Israel Ltd.
1 Mevo Sivan Street
Qiryat Gat 82022, Israel
Tel: +972 (0)8 6810485
Fax +972 (0)8 6810486 e-mail: [email protected]
Portugal
Busch lbérica S.A., Sucursal em Portugal
Zona Industrial Norte,
Fracção B, Armazém 2
3750-753 Raso de Travassô - Agueda
Aveiro, Portugal
Tel: +351 234 648 070
Fax: +351 234 648 068 e-mail: [email protected]
United Kingdom
Busch (UK) Ltd
Hortonwood 30
Telford Shropshire TF1 7YB
Tel: +44 1952 677 432
Fax: +44 1952 677 423 e-mail: [email protected]
Russia
Busch Vacuum Russia OOO
Kotlyakovskaya str., 6/9
115201 Moscow
Tel: +7 495 6486726
Fax: +7 495 6486724 e-mail: [email protected]
USA
Busch LLC
516-B Viking Drive
Virginia Beach, VA 23452
Tel: +1 757 463-7800
Fax: +1 757 463 7407 e-mail: [email protected]
Busch – All over the World in Industry page 16
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Related manuals
advertisement