Optimum BF20 V User manual

GB
OPTIMUM
MASCHINEN - GERMANY
®
Operating manual
Version 4.0.2
Drilling-milling machine
Part no. 3338120
Part no. 3338122
Part no. 3338125

Version 4.0.2 dated 2019-4-3Page 2 Original operating instructions
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OPTIMUM
MASCHINEN - GERMANY
®
Table of contents
1 Safety
1.1 Type plates ...............................................................................................................................................6
1.2 Safety instructions (warning notes)...........................................................................................................7
1.2.1 Classification of hazards...........................................................................................................................7
1.2.2 Other pictograms ......................................................................................................................................8
1.3 Intended use .............................................................................................................................................8
1.4 Reasonably foreseeable misuses.............................................................................................................9
1.4.1 Avoiding misuses......................................................................................................................................9
1.5 Possible dangers caused by the drilling-milling machine .......................................................................11
1.6 Qualification of personnel .......................................................................................................................11
1.6.1 Target group ...........................................................................................................................................11
1.7 Operator positions ..................................................................................................................................12
1.8 Safety measures during operation..........................................................................................................12
1.9 Safety devices ........................................................................................................................................12
1.9.1 EMERGENCY-STOP push button..........................................................................................................13
1.9.2 Protective cover ......................................................................................................................................14
1.9.3 Separating protective equipment ............................................................................................................14
1.10 Safety check ...........................................................................................................................................15
1.11 Personnel protective equipment .............................................................................................................15
1.12 For your own safety during operation .....................................................................................................16
1.13 Switching-off and securing the drilling-milling machine ..........................................................................16
1.14 Using lifting equipment ...........................................................................................................................16
1.15 Signs on the drilling-milling machine ......................................................................................................16
2 Technical data
2.1 Electrical connection...............................................................................................................................17
2.2 Drilling-milling capacity ...........................................................................................................................17
2.3 Spindle seat ............................................................................................................................................17
2.4 Drilling and milling head..........................................................................................................................17
2.5 Cross table..............................................................................................................................................17
2.6 Dimensions .............................................................................................................................................17
2.7 Working area ..........................................................................................................................................17
2.8 Speeds....................................................................................................................................................17
2.10 Emissions ...............................................................................................................................................18
2.9 Environmental conditions........................................................................................................................18
2.11 Dimensions, installation plan BF20V ......................................................................................................19
2.12 Dimensions, installation plan BF20L │BF20LD .....................................................................................20
2.13 Installation plan of optional substructure ................................................................................................21
3 Unpacking and connecting
3.1 Scope of delivery ....................................................................................................................................22
3.2 Transport ................................................................................................................................................22
3.3 Installation and assembly .......................................................................................................................23
3.3.1 Requirements regarding the installation site...........................................................................................23
3.3.2 Load suspension point............................................................................................................................23
3.3.3 Assembly ................................................................................................................................................23
3.4 First commissioning ................................................................................................................................24
3.4.1 Power supply ..........................................................................................................................................24
3.4.2 Cleaning and lubricating .........................................................................................................................24
3.4.3 Warming up the machine........................................................................................................................25
3.5 Optional accessory .................................................................................................................................25
4Operation
4.1 Safety......................................................................................................................................................26

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®
4.2 Control and indicating elements ............................................................................................................. 26
4.2.1 Control panel .......................................................................................................................................... 27
4.3 Switching on the drilling-milling machine................................................................................................ 28
4.4 Switching off the drilling-milling machine................................................................................................ 28
4.5 Inserting a tool........................................................................................................................................ 29
4.5.1 Installation .............................................................................................................................................. 29
4.5.2 Disassembly ........................................................................................................................................... 29
4.5.3 Use of collet chucks ............................................................................................................................... 29
4.6 Clamping the workpieces ....................................................................................................................... 30
4.7 Changing the speed range ..................................................................................................................... 30
4.8 Selecting the speed................................................................................................................................ 30
4.8.1 Standard values for cutting speeds ........................................................................................................ 31
4.8.2 Standard values for speeds with HSS – Eco – twist drilling ................................................................... 32
4.9 Manual spindle sleeve feed with the fine feed........................................................................................ 32
4.10 Digital display for spindle sleeve travel .................................................................................................. 33
4.10.1 Malfunctions ........................................................................................................................................... 34
4.11 Manual spindle sleeve feed with the spindle sleeve lever ...................................................................... 34
4.12 Swivelling the drill-mill head ................................................................................................................... 34
4.12.1 Shifting the drill-mill head ....................................................................................................................... 34
4.13 Assembly of the optional adapter for a high speed motor ...................................................................... 35
4.13.1 Drawing adapter for a high speed motor ................................................................................................ 36
4.14 Assembly of the column on the lathe ..................................................................................................... 37
4.14.1 Drawing adapter ..................................................................................................................................... 38
5 DRO 5 on BF20LD
5.1 Keyboard (eight keys) ............................................................................................................................ 39
5.2 Operations.............................................................................................................................................. 39
5.2.1 Axial function .......................................................................................................................................... 39
5.2.2 Modification of the basic value of X, Y, Z ............................................................................................... 39
5.3 MENU..................................................................................................................................................... 39
5.4 The main menu ..................................................................................................................................... 40
5.4.1 LCD display parameter setting ............................................................................................................... 40
5.4.2 Parameter setting of X Y Z-axis and speed axis .................................................................................... 40
5.4.3 Parameter setting of X-axis .................................................................................................................... 41
5.4.4 Parameter setting of speed axis............................................................................................................. 42
5.5 Connections ........................................................................................................................................... 42
6 Maintenance
6.1 Safety ..................................................................................................................................................... 43
6.1.1 Preparation............................................................................................................................................. 43
6.1.2 Restarting ............................................................................................................................................... 43
6.2 Inspection and maintenance .................................................................................................................. 44
6.3 Repair..................................................................................................................................................... 47
6.4 Setting instructions control ..................................................................................................................... 48
7 Ersatzteile - Spare parts BF20V │BF20L │BF20LD
7.1 Kreuztisch - Cross table ......................................................................................................................... 51
7.2 Säule 1 von 2 - Column 1 of 2................................................................................................................ 52
7.3 BF20LD .................................................................................................................................................. 53
7.4 Säule 2 von 2 - Column 2 of 2................................................................................................................ 54
7.5 Fräskopf 1 von 2 - Milling head 1 of 2 .................................................................................................... 55
7.6 Fräskopf 2 von 2 - Milling head 2 of 2 .................................................................................................... 56
7.7 Bedienkonsole und Schutzeinrichtung - Operation panel and protection device ................................... 57
7.8 Optionaler Unterbau - Optional sub structure........................................................................................ 58
7.9 Schaltplan - Wiring diagram - BF20V │BF20L ....................................................................................... 59
7.10 Schaltplan - Wiring diagram - BF20V │BF20L - 2 Kanalig ..................................................................... 60
7.11 Maschinenschilder - Machine labels ...................................................................................................... 61

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7.12 Ersatzteilliste - Spare part list .................................................................................................................61
8 Malfunctions
8.1 Malfunctions on the drilling-milling machine ...........................................................................................68
9 Appendix
9.1 Copyright ................................................................................................................................................69
9.2 Terminology/Glossary.............................................................................................................................69
9.3 Change information manual....................................................................................................................69
9.4 Liability claims for defects / warranty ......................................................................................................70
9.5 Note regarding disposal / options to reuse: ............................................................................................70
9.6 Storage ...................................................................................................................................................71
9.6.1 Decommissioning ...................................................................................................................................71
9.6.2 Disposal of the packaging of new devices..............................................................................................72
9.6.3 Disposing of the old device.....................................................................................................................72
9.6.4 Disposal of electrical and electronic components...................................................................................72
9.7 Disposal via municipal collection ............................................................................................................72
9.8 RoHS , 2011/65/EU ................................................................................................................................72
9.9 Product follow-up ....................................................................................................................................73

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_preface_GB.fm
OPTIMUM
MASCHINEN - GERMANY
®
Preface
Dear customer,
Thank you very much for purchasing a product made by OPTIMUM.
OPTIMUM metal working machines offer a maximum of quality, technically optimum solutions
and convince by an outstanding price performance ratio. Continuous enhancements and prod-
uct innovations guarantee state-of-the-art products and safety at any time.
Before commissioning the machine please thoroughly read these operating instructions and get
familiar with the machine. Please also make sure that all persons operating the machine have
read and understood the operating instructions beforehand.
Keep these operating instructions in a safe place nearby the machine.
Information
The operating instructions include indications for safety-relevant and proper installation, opera-
tion and maintenance of the machine. The continuous observance of all notes included in this
manual guarantee the safety of persons and of the machine.
The manual determines the intended use of the machine and includes all necessary information
for its economic operation as well as its long service life.
In the paragraph "Maintenance" all maintenance works and functional tests are described which
the operator must perform in regular intervals.
The illustration and information included in the present manual can possibly deviate from the
current state of construction of your machine. Being the manufacturer we are continuously
seeking for improvements and renewal of the products. Therefore, changes might be performed
without prior notice. The illustrations of the machine may be different from the illustrations in
these instructions with regard to a few details. However, this does not have any influence on
the operability of the machine.
Therefore, no claims may be derived from the indications and descriptions. Changes and errors
are reserved!
Your suggestion with regard to these operating instructions are an important contribution to
optimising our work which we offer to our customers. For any questions or suggestions for
improvement, please do not hesitate to contact our service department.
If you have any further questions after reading these operating instructions and you are
not able to solve your problem with a help of these operating instructions, please con-
tact your specialised dealer or directly the company OPTIMUM.
Optimum Maschinen Germany GmbH
Dr.- Robert - Pfleger - Str. 26
D-96103 Hallstadt
Mail: [e-mail]
Internet: www.optimum-maschinen.com

Version 4.0.2 dated 2019-4-3Page 6 Translation of the original instructions
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1 Safety
Glossary of symbols
This part of the operating instructions
explains the meaning and use of the warning notices included in these operating instruc-
tions,
defines the intended use of the drilling-milling machine,
points out the dangers that might arise for you or others if these instructions are not
observed,
informs you about how to avoid dangers.
In addition to these operation instructions, please observe
the applicable laws and regulations,
the legal regulations for accident prevention,
the prohibition, warning and mandatory signs as well as the warning labels on the drilling-
milling machine.
Always keep this documentation close to the drilling-milling machine.
INFORMATION
If you are unable to solve a problem using these operating instructions, please contact us for
advice:
Optimum Maschinen Germany GmbH
Dr. Robert-Pfleger-Str. 26
D- 96103 Hallstadt
email: [e-mail]
1.1 Type plates
gives further advice
calls on you to act
enumerations

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1.2 Safety instructions (warning notes)
1.2.1 Classification of hazards
We classify the safety warnings into various levels. The table below gives an overview of the
classification of symbols (ideogram) and the warning signs for each specific danger and its
(possible) consequences.
Ideogram Warning alert Definition / consequence
DANGER! Threatening danger that will cause serious injury or death to people.
WARNING! A danger that might cause severe injury to the staff or can lead to death.
CAUTION! Danger or unsafe procedure that might cause injury to people or damage to
property.
ATTENTION!
Situation that could cause damage to the drilling-milling machine and prod-
ucts and other types of damage.
No risk of injury to people.
INFORMATION
Application tips and other important or useful information and notes.
No dangerous or harmful consequences for people or objects.
In case of specific dangers, we replace the pictogram by
or
general danger by a warning of injury of hands, hazardous electri-
cal voltage,
rotating parts.

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1.2.2 Other pictograms
1.3 Intended use
WARNING!
In the event of improper use, the drilling-milling machine
there may be a risk to the staff,
the drilling-milling machine and other material property of the operating company
will be endangered,
the correct function of the drilling-milling machine may be affected.
The drilling-milling machine is designed and manufactured to be used for milling and drilling
cold metals or other non-flammable materials or materials that do not constitute a health hazard
by using commercial milling and drilling tools.
The drilling-milling machine must only be installed and operated in a dry and well-ventilated
place. If the drilling-milling machine is used in any way other than described above, modified
without the approval of the company Optimum Maschinen Germany GmbH then the drilling-mill-
ing machine is being used improperly.
We will not be held liable for any damages resulting from any operation which is not in accord-
ance with the intended use.
We would like to stress that any modifications to the construction or technical or technological
modifications that have not been authorised by the company Optimum Maschinen Germany
GmbH will also render the guarantee null and void. It is also part of intended use that
the maximum values for the drilling-milling machine are complied with,
the operating manual is observed,
the inspection and maintenance instructions are observed.
 "Technical data“ on page 17
Activation forbidden! Warning of flammable sub-
stances!
Warning of suspended loads! Warning risk of stumbling!
Warning tilting danger! Warning of automatic star-
tup!
Warning of biological hazard! Read the operating instruc-
tion!
Pull the main plug! Use safety glasses! protec-
tion
Use face shield! Use protective boots!
Use protective suit! Use ear protection! Protect the environment! Contact address

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WARNING!
Heaviest injuries through improper use.
It is forbidden to make any modifications or alterations to the operating values of the
drilling-milling machine. These could endanger the staff and cause damage to the
drilling-milling machine.
INFORMATION
The drilling-milling machine is built according to the standard DIN EN 55011 class B.
The class B (machine tools) is intended to be used in residential facilities, where the power is
supplied via a public low voltage supply system.
ATTENTION!
If the drilling-milling machine is not used as intended or if the safety directives or the
operating instructions are ignored the liability of the manufacturer for any damages to
persons or objects resulting hereof is excluded and the claim under guarantee is
becoming null and void!
1.4 Reasonably foreseeable misuses
Any other use as the one determined under the "Intended use" or any use beyond the
described use shall be deemed as not in conformity and is forbidden.
Any other use has to be discussed with the manufacturer.
It is only allowed to process metal, cold and non-inflammable materials with the milling-
machine.
In order to avoid misuses it is necessary to read and understand the operating instructions
before the first commissioning.
The operators must be qualified.
1.4.1 Avoiding misuses
Use of suitable cutting tools.
Adapting the speed adjustment and feed to the material and workpiece.
Clamp workpieces firmly and vibration-free.
For the drilling-milling machine there are conversion kits.
The attachments are provided as a kit to computer-controlled milling (CNC Computerized
numerical control). However, the control of the step motors can also be done manually via a
special controller (control, potentiometer). A step motor control is required in each case.
The drilling-milling machine must only be installed and operated in a dry and well-ventilated
place.
The machine BF20V and BF20L covered by the standard DIN EN 13128 (milling machines,
including drilling machines). Therein, the manually controlled machines are divided into two
classes with different protection levels, depending on the travel speed of a single power-driven
axis. In addition, the requirements for automatically controlled machines listed (highest level of
protection).
The one who changed the manually controlled BF20V and BF20L on CNC control is legally the
manufacturer of a new machine due to the significant change in the machine and is therefore
responsible for compliance with the requirements of the Machinery Directive and the DIN EN
13128.
The tool follows a path of movement which is normally not predictable by the operator. Because
of the additional hazards caused by flying parts the standard defines protective devices. It does
not matter what speeds are available on the axes.

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We expressly point out that the guarantee will expire due to any constructive technical or proce-
dural changes which had not been performed by the company Optimum Maschinen Germany
GmbH.
With the conversion of the machine BF20V and BF20L an cabinet is required.
A suitable cabinet for these machines you can order:
Cabinet SHC 1 for BF20V, item no. 353 9091
Cabinet SHC 2 for BF20L, item no. 353 9092
Cabinet SHC 2 for BF20LD, item no. 353 9092
ATTENTION!
The workpiece is always to be fixed by a machine vice, jaw chuck or by another
appropriate clamping tool such as for the clamping claws.
WARNING!
Risk of injury caused by workpieces flying off.
Clamp the workpiece in the machine vice. Make sure that the workpiece is firmly clamped in the
machine vice resp. that the machine vice is firmly clamped on the machine table.
Use cooling and lubricating agents to increase the durability of the tool and to improve the
surface quality.
Clamp the cutting tools and workpieces on clean clamping surfaces.
Sufficiently lubricate the machine.
Correctly adjust the bearing clearance and the guidings.
It is recommended:
Insert the drill in a way that it is exactly positioned between the three clamping jaws of the
quick action chuck.
Clamp and mills by means of the collet chuck and the corresponding collets.
Clamp end face mills by means of shell end mill arbors.
When drilling make sure that
the suitable speed is set depending on the diameter of the drill,
the pressure must only be such that the drill can cut without load
in case of too strong pressure the drill will get worn early or even might break resp. get
jammed in the hole. If the drill gets jammed immediately stop the main motor by pressing
the emergency stop button,
for hard materials, e.g. steel, use commercial cooling / lubricating agents,
generally always drive the turning spindle out of the workpiece.
ATTENTION!
Do not use the quick action drill chuck for milling tools. Never clamp a milling cutter into
the quick action drill chuck. Use a collet chuck and the corresponding collets for the end
mill.
When milling make sure that
the corresponding cutting speed is selected,
for workpieces with normal strength values, e.g. steel 18-22 m/min,
for workpieces with high strength values 10-14 m/min,
the pressure is selected in a way that the cutting speed remains constant,
for hard materials commercial cooling / lubricating agents are used.

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1.5 Possible dangers caused by the drilling-milling machine
The drilling-milling machine was built using the latest technological advances.
Nonetheless there remains a residual risk, since the drilling-milling machine operates with
at high speeds,
with rotating parts and tools,
with electrical voltages and currents.
We have used construction resources and safety techniques to minimize the health risk to per-
sons resulting from these hazards.
If the drilling-milling machine is used and maintained by the staff who are not duly qualified,
there may be a risk by the drilling milling machine resulting from incorrect operation or unsuita-
ble maintenance.
INFORMATION
Everyone involved in the assembly, commissioning, operation and maintenance must
be duly qualified,
strictly follow these operating instructions.
Always disconnect the drilling-milling machine from the electrical power supply when perform-
ing cleaning or maintenance works.
WARNING!
The drilling-milling machine may only be used with functional safety devices.
Disconnect the drilling-milling machine immediately, whenever you detect a failure in the
safety devices or when they are not fitted!
All additional devices installed by the operator have to be equipped with the prescribed
safety devices.
This is your responsibility being the operating company!
 "Safety devices“ on page 12
1.6 Qualification of personnel
1.6.1 Target group
This manual is addressed to
the operating companies,
the users,
the staff for maintenance works.
Therefore, the warning notes refer to both, operation and maintenance staff of the drilling-mill-
ing machine.
Disconnect the drilling-milling machine always from the electrical power supply. This will pre-
vent it from being used by unauthorized staff.
The qualifications of the staff for the different tasks are mentioned below:
Operator
The operator is instructed by the operating company about the assigned tasks and possible
risks in case of improper behaviour. Any tasks which need to be performed beyond the opera-
tion in the standard mode must only be performed by the operator if it is indicated in these
instructions and if the operating company expressively commissioned the operator.

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Electrical specialist
Due to his professional training, knowledge and experience as well as his knowledge of respec-
tive standards and regulations the electrical specialist is able to perform works on the electrical
system and to recognise and avoid any possible dangers himself.
The electrical specialist is specially trained for the working environment in which he is working
and knows the relevant standards and regulations.
Specialist staff
Due to his professional training, knowledge and experience as well as his knowledge of rele-
vant regulations the specialist staff is able to perform the assigned tasks and to recognise and
avoid any possible dangers himself.
Instructed persons
Instructed persons were instructed by the operating company about the assigned tasks and any
possible risks in case of improper behaviour.
INFORMATION
Everyone involved in the assembly, commissioning, operation and maintenance must
be duly qualified,
strictly follow these operating instructions.
In the event of improper use
there may be a risk to the staff,
there may be a risk to the drilling milling machine and other material values,
the correct function of the drilling-milling machine may be affected.
1.7 Operator positions
The operator’s position is in front of the drilling-milling machine.
1.8 Safety measures during operation
CAUTION!
Risk due to inhaling of health hazardous dusts and mist.
Dependent on the material which need to be processed and the used auxiliaries dusts
and mist may be caused which might impair you health.
Make sure that the generated health hazardous dusts and mist are safely sucked off at
the point of origin and is dissipated or filtered from the working area. To do so, use a
suitable extraction unit.
CAUTION!
Risk of fire and explosion by using flammable materials or cooling lubricants.
Before processing inflammable materials (e.g. aluminium, magnesium) or using
inflammable auxiliary materials (e.g. spirit) it is necessary to take additional preventive
measures in order to safely avoid health risks.
1.9 Safety devices
Use the drilling-milling machine only with properly functioning safety devices.
Stop the drilling-milling machine immediately if there is a failure on the safety device or if it is
not functioning for any reason.
It is your responsibility!

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If a safety device has been activated or has failed, the drilling-milling machine must only be
used if you
have removed the cause of the failure,
have verified that there is no danger resulting for the staff or objects.
WARNING!
If you bypass, remove or deactivate a safety device in any other way, you are
endangering yourself and other staff working with the drilling-milling machine. The
possible consequences are
injuries may occur due to workpiece or parts of workpieces flying off,
contact with rotating parts,
fatal electrocution.
The drilling-milling machine includes the following safety devices:
an EMERGENCY STOP push button,
a protective cover on the drilling / milling head.
a separating protective device on the milling spindle,
WARNING!
The separating protective equipment which is made available and delivered together
with the machine is designed to reduce the risk of workpieces or fractions of them which
being expelled, but not to remove them completely. Always work carefully and observe
the limit values of your chipping process.
1.9.1 EMERGENCY-STOP push button
The EMERGENCY STOP push button
switches off the drilling-milling machine.
 "Switching on the drilling-milling
machine“ on page 28
Img.1-1: EMERGENCY-STOP push button
ATTENTION!
The emergency stop push button stops the drilling-milling machine the moment it is
activated.
Press the EMERGENCY STOP push button only if there is a risk! If this push button is
actuated in order to switch off the drilling-milling machine in the standard operation the
tool or workpiece might get damaged.
After having actuated the EMERGENCY STOP, turn the knob of the particular push button to
the right in order to restart the machine.
Emergency stop

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1.9.2 Protective cover
The drilling / milling head is equipped
with a protective cover.
WARNING!
Only remove the protective cover
when the mains plug of the drilling-
milling machine is disconnected.
Img.1-2: Protective cover
1.9.3 Separating protective equipment
Adjust the protective equipment to the
correct height before you start working.
To do so, detach the clamping screw,
adjust the required height and re-tighten
the clamping screw.
A switch is integrated in the fixture of the
spindle protection which monitors that
the cover is closed.
INFORMATION
You cannot start the machine if the spin-
dle protection is not closed.
Img.1-3: Separating protective equipment
Protective cover
Clamping screw

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1.10 Safety check
Check the drilling-milling machine in regular intervals.
Check all safety devices
before each operation,
once a week (with the machine in operation),
after every maintenance and repair work.
1.11 Personnel protective equipment
For certain work personal protective equipment is required.
Protect your face and your eyes: Wear a safety helmet with facial protection when performing
works where your face and eyes are exposed to hazards.
Use protective gloves when handling pieces with sharp edges.
Use safety shoes when you assemble, disassemble or transport heavy components.
Use ear protection if the noise level (inmission) in the workplace exceeds 80 dB (A).
Before starting work make sure that the prescribed personnel protective equipment is available
at the working place.
CAUTION!
Dirty or contaminated personnel protective equipment can cause diseases. Clean it each
time after use and once a week.
General check
Equipment Check OK
Protective covers Mounted, firmly bolted and not damaged
Signs,
Markings
Installed and legible
Functional check
Equipment Check OK
EMERGENCY-STOP push but-
ton
When the EMERGENCY-STOP button is activated, the drilling-milling
machine should switch off. Make sure that it is only possible to restart the
machine if the EMERGENCY STOP push button is unlocked and the ON
switch was activated.
Separating protective equip-
ment around the drilling milling
spindle
The drilling-milling machine may switch on only when the safety device is
closed.

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®
1.12 For your own safety during operation
WARNING!
Before activating the drilling-milling machine assure yourself that this will neither
endanger other persons nor cause damage to equipment.
Avoid any unsafe working practices:
The instructions mentioned in these operating instructions have to be strictly observed dur-
ing assembly, operation, maintenance and repair.
Wear safety goggles.
Switch off the drilling-milling machine before measuring the workpiece.
Do not work on the drilling-milling machine, if your concentration is reduced, for example,
because you are taking medication.
Stay on the drilling-milling machine until the working spindle has come to a complete stand-
still.
Use the prescribed personnel protective equipment. Make sure to wear a well-fitting work
suit and, if necessary, a hairnet.
Do not use protective gloves when drilling or milling.
Disconnect the shock-proof plug from the outlet before replacing the tool.
Use appropriate auxiliary materials to remove drilling and milling chips.
Make sure that nobody is endangered by your work.
Safely and firmly clamp the workpiece before switching on the drilling-milling machine.
We specially point out the specific dangers when working with and on the drilling-milling
machine.
1.13 Switching-off and securing the drilling-milling machine
Unplug the main switch before starting any maintenance or repair work.
1.14 Using lifting equipment
WARNING!
The use of unstable lifting and load suspension gear that might break under load can
cause severe injuries or even death.
Check that the lifting equipment and load-suspension gears are of sufficient load
capacity and are in perfect condition.
Observe the accident prevention regulations issued by your Employers Liability
Insurance Association or other competent supervisory authority, responsible for your
company.
Fasten the loads properly.
Never walk under suspended loads!
1.15 Signs on the drilling-milling machine
Img.1-4: Drilling-milling machine

Version 4.0.2 dated 2019-4-3 Page 17Translation of the original instructions
BF20V | BF20L | BF20LD GB
BF20V_BF20L_BF20LD_GB_2.fm
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MASCHINEN - GERMANY
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2 Technical data
The following information are the dimensions and indications of weight and the manufacturer‘s
approved machine data.
2.1 Electrical connection BF20V BF20L │BF20LD
Motor 230 V / 50Hz / 850 W
2.2 Drilling-milling capacity BF20V BF20L │BF20LD
Drilling capacity [mm] max. Ø16
Milling capacity of end-mill cutter [mm] max. Ø20
Milling capacity of inserted tooth cutter [mm] max. Ø63
Throat [mm] 185
2.3 Spindle seat BF20V BF20L │BF20LD
Spindle seat MT 2 / M10
Spindle sleeve stroke [mm] 50 mm
2.4 Drilling and milling head BF20V BF20L │BF20LD
Swivelling + / - 90°
Reduction stages 2
Z axis travel [mm] 280
2.5 Cross table BF20V BF20L │BF20LD
Table length [mm] 500 700
Table width [mm] 180
X-axis travel [mm] 280 480
Y-axis travel [mm] 175
T - slot size / distance [mm] 12 / 63
Max. load [kg] 50 40
2.6 Dimensions BF20V BF20L │BF20LD
Height [mm] 935
Depth [mm] 565 565
Width [mm] 745 950
Total weight [kg] 103 112 114
2.7 Working area BF20V BF20L │BF20LD
Height [mm] 2000
Depth [mm] 2200
Width [mm] 1500
2.8 Speeds BF20V BF20L │BF20LD
Gear stage slow [min-1] 90 - 1480

Version 4.0.2 dated 2019-4-3Page 18 Translation of the original instructions
BF20V | BF20L | BF20LDGB
BF20V_BF20L_BF20LD_GB_2.fm
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MASCHINEN - GERMANY
®
2.10 Emissions
The emission of the drilling-milling machine is below 80 dB(A).
If the drilling-milling machine is installed in an area where various machines are in operation,
the noise exposure (immission) on the operator of the drilling-milling machine at the working
place may exceed 80dB(A).
INFORMATION
This numerical value was measured on a new machine under proper operating conditions.
Depending on the age respectively on the wear of the machine it is possible that the noise
behaviour of the machine changes.
Furthermore, the factor of the noise emission is also depending on manufacturing influencing
factors, e.g. speed, material and clamping conditions.
INFORMATION
The mentioned numerical value is the emission level and not necessarily a safe working level.
Though there is a dependency between the degree of the noise emission and the degree of the
noise disturbance it is not possible to use it reliably to determine if further precaution measures
are required or not.
The following factors influence the actual degree of the noise exposure of the operator:
Characteristics of the working area, e.g. size or damping behaviour,
Other noise sources, e.g. the number of machines,
Other processes taking place in the proximity and the period of time during which the oper-
ator is exposed to the noise.
Furthermore, it is possible that the admissible exposure level might be different from country to
country due to national regulations.
This information about the noise emission shall allow the operator of theto more easily evalu-
ate the endangering and risks.
CAUTION!
Depending on the overall noise exposure and the basic limit values the machine
operators must wear an appropriate hearing protection.
We generally recommend to use a noise protection and a hearing protection.
Gear stage rapid [min-1] 150 - 3000
2.9 Environmental conditions BF20V BF20L │BF20LD
Temperature 5 - 35 °C
Humidity 25 - 80%
Operating material BF20V BF20L │BF20LD
Gear
Bare steel parts
Mobilgrease OGL 007 or,
Mobilux EP 004, or Mobil XHP
acid-free oil, for example Gun oil, engine oil

Version 4.0.2 dated 2019-4-3 Page 19Translation of the original instructions
BF20V | BF20L | BF20LD GB
BF20V_BF20L_BF20LD_GB_2.fm
OPTIMUM
MASCHINEN - GERMANY
®
2.11 Dimensions, installation plan BF20V
Img.2-1: installation plan BF20V

Version 4.0.2 dated 2019-4-3Page 20 Translation of the original instructions
BF20V | BF20L | BF20LDGB
BF20V_BF20L_BF20LD_GB_2.fm
OPTIMUM
MASCHINEN - GERMANY
®
2.12 Dimensions, installation plan BF20L │BF20LD
Img.2-2: installation plan BF20L │BF20LD