Optimum OPTidrill DH 24BV User manual

GB
OPTIMUM
MASCHINEN - GERMANY
Operating manual
Version 1.1.0
Drilling machine
Item no. 302 0420
Item no. 302 0430
Item no.Item no. 302 0440
Item no. 302 0450

OPTIMUM
MASCHINEN - GERMANY
Version 1.1.0 dated 2015-02-10Page 2 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
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 .............................................................................................................................................9
1.4 Reasonably foreseeable misuses.............................................................................................................9
1.4.1 Avoiding misuse........................................................................................................................................9
1.5 Possible dangers caused by the drilling machine...................................................................................10
1.6 Qualification of personnel .......................................................................................................................11
1.6.1 Target group ...........................................................................................................................................11
1.6.2 Authorized personnel..............................................................................................................................11
1.7 Operator positions ..................................................................................................................................12
1.8 Safety measures during operation..........................................................................................................13
1.9 Safety devices .......................................................................................................................................13
1.10 Safety check ...........................................................................................................................................14
1.11 EMERGENCY-STOP push button..........................................................................................................14
1.11.1 Main switch .............................................................................................................................................14
1.12 Drilling table ............................................................................................................................................15
1.13 Drill chuck protection ..............................................................................................................................15
1.14 Personal protective equipment ...............................................................................................................15
1.15 Safety during operation...........................................................................................................................16
1.16 Safety during maintenance.....................................................................................................................16
1.17 Disconnecting and securing the drilling machine....................................................................................16
1.18 Using lifting equipment ...........................................................................................................................17
1.19 Mechanical maintenance work ...............................................................................................................17
1.20 Accident report........................................................................................................................................17
1.21 Electrical system.....................................................................................................................................17
1.22 Inspection deadlines...............................................................................................................................18
2 Technical data
2.1 Electrical connection...............................................................................................................................19
2.2 Power drive motor...................................................................................................................................19
2.3 Drilling capacity in steel ..........................................................................................................................19
2.4 Spindle seat............................................................................................................................................19
2.5 T-slots - size ...........................................................................................................................................19
2.6 Table size ...............................................................................................................................................19
2.7 Spindle stroke .........................................................................................................................................19
2.8 Throat depth ...........................................................................................................................................19
2.9 Machine height .......................................................................................................................................19
2.10 Column diameter ....................................................................................................................................19
2.11 Distance spindle - table ..........................................................................................................................19
2.12 Dimensions machine foot .......................................................................................................................19
2.12.1 Working surface machine foot ................................................................................................................20
2.13 Weight of machine [kg] ...........................................................................................................................20
2.14 Spindle speeds (Motor + Gear)...............................................................................................................20
2.15 Environmental conditions temperature ...................................................................................................20
2.15.1 Dimensions DH24BV ..............................................................................................................................21
2.15.2 Dimensions drilling table DH24BV..........................................................................................................21
2.15.3 Dimension DH28BV................................................................................................................................22
2.15.4 Dimensions drilling table DH28BV..........................................................................................................22
2.16 Dimensions DH34BV ..............................................................................................................................23

OPTIMUM
MASCHINEN - GERMANY
Version 1.1.0 dated 2015-02-10 Page 3Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
2.17 Dimensions DH40BV.............................................................................................................................. 24
2.17.1 Dimensions drilling table DH34BV ǀDH40BV......................................................................................... 25
3 Assembly
3.1 Scope of delivery.................................................................................................................................... 26
3.2 Transport ................................................................................................................................................ 26
3.3 Transportation to the installation site...................................................................................................... 26
3.4 Installation and assembly ....................................................................................................................... 27
3.4.1 Requirements regarding the installation site .......................................................................................... 27
3.4.2 Assembly................................................................................................................................................ 27
3.5 Installation .............................................................................................................................................. 27
3.6 Fixing...................................................................................................................................................... 28
3.7 First commissioning................................................................................................................................ 28
3.7.1 Power supply.......................................................................................................................................... 28
3.7.2 Warming up the machine ....................................................................................................................... 29
3.8 Fixture DH24BV ..................................................................................................................................... 30
3.9 Fixture DH28BV ..................................................................................................................................... 31
3.10 Fixture DH34BV ..................................................................................................................................... 32
3.11 Fixture DH40BV ..................................................................................................................................... 33
4Operation
4.1 Safety ..................................................................................................................................................... 34
4.2 Cooling ................................................................................................................................................... 34
4.3 Before starting work ............................................................................................................................... 34
4.4 During work ............................................................................................................................................ 35
4.5 Operation DH24BV................................................................................................................................. 36
4.5.1 Control and indicating elements ............................................................................................................. 36
4.5.2 Speed change ........................................................................................................................................ 37
4.5.3 Drilling .................................................................................................................................................... 37
4.5.4 Releasing the tool from the spindle seat ................................................................................................ 38
4.6 Operation DH28BV................................................................................................................................. 39
4.6.1 Control and indicating elements ............................................................................................................. 39
4.6.2 Speed change ........................................................................................................................................ 40
4.6.3 Drilling .................................................................................................................................................... 40
4.7 Releasing the tool from the spindle seat ................................................................................................ 40
4.7.1 With drill drift........................................................................................................................................... 40
4.7.2 With integrated drill drift.......................................................................................................................... 41
4.8 Operation DH34BV | DH40BV................................................................................................................ 42
4.8.1 Control and indicating elements ............................................................................................................. 42
4.9 Speed change ........................................................................................................................................ 43
4.10 Drilling .................................................................................................................................................... 43
4.11 Releasing the tool from the spindle seat ................................................................................................ 44
4.11.1 With drill drift........................................................................................................................................... 44
4.11.2 With integrated drill drift.......................................................................................................................... 45
4.12 Digital drilling depth display.................................................................................................................... 46
5 Determining the cutting speed and the speed
5.1 Table cutting speeds / infeed ................................................................................................................. 47
5.2 Speed table ............................................................................................................................................ 47
5.3 Examples to calculatory determine the required speed for your drilling machine .................................. 49
6 Maintenance
6.1 Safety ..................................................................................................................................................... 50
6.1.1 Preparation............................................................................................................................................. 50
6.1.2 Restarting ............................................................................................................................................... 50
6.2 Inspection and maintenance .................................................................................................................. 50
6.3 Repair..................................................................................................................................................... 51
6.3.1 Customer service technician .................................................................................................................. 51

OPTIMUM
MASCHINEN - GERMANY
Version 1.1.0 dated 2015-02-10Page 4 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
6.4 Inspection and maintenance DH24BV....................................................................................................52
6.5 Inspection and maintenance DH28BV....................................................................................................54
6.6 Inspection and maintenance DH34BV | DH40BV...................................................................................56
7 Ersatzteile - Spare parts - DH24BV
7.1 Bohrkopf - Drilling head .........................................................................................................................59
7.2 Säule und Bohrtisch - Column and drilling table ....................................................................................60
7.3 Antrieb - Actuator ...................................................................................................................................61
8 Ersatzteile - Spare parts - DH28BV
8.1 Bohrkopf - Drilling head .........................................................................................................................65
8.2 Säule und Bohrtisch - Column and drilling table ....................................................................................66
8.3 Antrieb - Actuator ...................................................................................................................................67
9 Ersatzteile - Spare parts - DH34BV | DH40BV
9.1 Bohrkopf - Drilling head - 1 of 5 ..............................................................................................................71
9.2 Bohrkopf - Drilling head - 2 of 5 ..............................................................................................................72
9.2.1 Bohrkopf - Drilling head, DH34BV, Version 1.0 - 3 of 5..........................................................................73
9.2.2 Bohrkopf - Drilling head, DH34BV, Version 1.1 - 3 of 5..........................................................................74
9.2.3 Bohrkopf - Drilling head - DH40BV - 3 of 5.............................................................................................75
9.2.4 Bohrkopf - Drilling head - 4 of 5 ..............................................................................................................76
9.2.5 Bohrkopf - Drilling head - 5 of 5 ..............................................................................................................77
9.2.6 Bohrsäule - Drilling column.....................................................................................................................78
9.2.7 Bohrfutterschutz - Drilling chuck protection ............................................................................................79
9.3 Schaltplan - Wiring diagram - DH24BV , DH28BV .................................................................................83
9.3.1 Ersatzteilliste elektrische Bauteile - Spare parts electrical komponents.................................................84
9.4 Schaltplan - Wiring diagram - DH34BV | DH40BV .................................................................................85
9.4.1 Ersatzteilliste elektrische Bauteile - Spare parts electrical komponents.................................................86
10 Malfunctions
11 Appendix
11.1 Copyright ................................................................................................................................................89
11.2 Terminology/Glossary.............................................................................................................................89
11.3 Change information operating manual....................................................................................................89
11.4 Liability claims for defects / warranty ......................................................................................................90
11.4.1 Decommissioning ...................................................................................................................................90
11.5 Storage ...................................................................................................................................................91
11.6 Note regarding disposal / options to reuse: ............................................................................................91
11.6.1 Disposal of new device packaging..........................................................................................................91
11.6.2 Disposing of the old device.....................................................................................................................92
11.6.3 Disposal of electrical and electronic components...................................................................................92
11.6.4 Disposal of lubricants and coolants ........................................................................................................92
11.7 Disposal via municipal collection ............................................................................................................92
11.8 RoHS, 2002/95/EC .................................................................................................................................93
11.9 Product follow-up ....................................................................................................................................93
11.10 EC - Declaration of Conformity...............................................................................................................94

OPTIMUM
MASCHINEN - GERMANY
Version 1.1.0 dated 2015-02-10 Page 5Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
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 product 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, operation and main-
tenance 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 eco-
nomic 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 hesi-
tate 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 contact 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

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 6 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
1 Safety
Glossary of symbols
This part of the operating instructions
explains the meaning and use of the warning notes included in these operating instructions,
defines the intended use of the drilling 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 statutory provisions for accident prevention,
the prohibition, warning and mandatory signs as well as the warning labels on the drilling
machine.
Always keep this documentation close to the drilling machine.
1.1 Type plates
provides further instructions
calls on you to act
enumerations

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 7Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
INFORMATION
If you are unable to rectify an issue using these operating instructions, please contact us for
advice:
Optimum Maschinen Germany GmbH
Dr. Robert-Pfleger-Str. 26
D-96103 Hallstadt
Email: [e-mail]
1.2 Safety instructions (warning notes)
1.2.1 Classification of hazards
We classify the safety warnings into different categories. The table below gives an overview of
the classification of symbols (ideogram) and the warning signs for each specific danger and its
(possible) consequences.
Symbol Warning alert Definition / consequence
DANGER! Impending danger that will cause serious injury or death to people.
WARNING! A danger that can cause serious injury or death.
CAUTION!
A danger or unsafe procedure that can cause personal injury or damage to
property.
ATTENTION!
Situation that could cause damage to the drilling machine and products and
other types of damage.
No risk of injury to people.
Information
Practical tips and other important or useful information and notes.
No dangerous or harmful consequences for people or objects.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 8 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
1.2.2 Other pictograms
In case of specific dangers, we replace the pictogram with
general danger with a warning of injury to hands, hazardous electri-
cal voltage,
or
rotating parts.
Warning: danger of slip-
ping!
Warning: risk of stumbling! Warning: hot surface! Warning: biological hazard!
Warning: automatic start-
up!
Warning tilting danger! Warning: suspended loads! Caution, danger of explo-
sive substances!
Activation forbidden! Use ear protection! Read the operating instruc-
tions before commission-
ing!
Disconnect the mains plug!
Wear protective glasses! Wear protective gloves! Wear protective boots! Wear a protective suit!

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 9Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
1.3 Intended use
WARNING!
In the event of improper use, the drilling machine
will endanger personnel,
will endanger the machine and other material property of the operating company,
the correct function of the drilling machine may be affected.
The drilling machine is designed and manufactured to be used in a non-explosive environment.
The drilling machine is designed and manufactured for holes in cold metals or other non flam-
mable materials or that not constitute a health hazard using a rotating filing-stripping tool that
has a number of grooves for collecting the filings.
If the drilling machine is used in any way other than described above, modified without the
approval of the company Optimum Maschinen Germany GmbH, then the drilling 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 expressly point out that the guarantee or CE conformity will expire due to any constructive
technical or procedural changes which had not been performed by the company Optimum
Maschinen Germany GmbH.
It is also part of intended use that you
observe the limits of the drilling machine,
the operating manual is observed,
the inspection and maintenance instructions are observed.
 "Technical data“ on page 19
WARNING!
Extremely severe injuries.
It is forbidden to make any modifications or alternations to the operation values of the
drilling machine! They could endanger the personnel and cause damage to the drilling
machine.
1.4 Reasonably foreseeable misuses
Any other use other than that specified under "Intended use" or any use beyond the described
use shall be deemed as non-intended use and is not permissible.
Any other use has to be discussed with the manufacturer.
It is only allowed to process metal, cold and non-inflammable materials with the drilling
machine.
In order to avoid misuse, it is necessary to read and understand the operating instructions
before first commissioning.
Operators must be qualified.
1.4.1 Avoiding misuse
Use of suitable cutting tools.
Adapting the speed adjustment and feed to the material and workpiece.
Clamp workpieces firmly and vibration-free.
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.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 10 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
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.
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.
1.5 Possible dangers caused by the drilling machine
The drilling machine is state-of-the-art.
Nevertheless, there is a residual risk as the drilling machine operates with
at high speeds,
rotating parts,
electrical voltage and currents.
We have used construction resources and safety techniques to minimize the health risk to per-
sonnel resulting from these hazards.
If the drilling machine is used and maintained by personnel who are not duly qualified, there
may be a risk resulting from incorrect or unsuitable maintenance of the drilling machine.
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 personnel,
there may be a risk to the machine and other material values,
the correct function of the drilling machine may be affected.
Always disconnect the drilling machine, and upright drill if cleaning or maintenance work is
being carried out.
WARNING!
The drilling machine may only be used with functional safety devices.
Disconnect the drilling machine immediately, whenever you detect a failure in the safety
devices or when they are not fitted!

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 11Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
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 13
1.6 Qualification of personnel
1.6.1 Target group
This manual is addressed to
the operating companies,
the operators,
the maintenance personnel.
Therefore, the warning notes refer to both, operation and maintenance personnel of the drilling
machine.
Determine clearly and explicitly who will be responsible for the different activities on the
machine (operation, maintenance and repair).
Unclear responsibilities constitute a safety risk!
Always disconnect plug of the drilling machine from the electrical power supply. This will pre-
vent it from being used by unauthorized persons.
The qualifications of the personnel 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 standard mode must only be performed by the operator, if so indicated in these instruc-
tions and if the operator has been expressively commissioned by the operating company.
Qualified electrician
With professional training, knowledge and experience as well as knowledge of respective
standards and regulations, qualified electricians are able to perform work on the electrical sys-
tem and recognise and avoid any possible dangers.
Qualified electricians have been specially trained for the working environment, in which they are
working and know the relevant standards and regulations.
Qualified personnel
Thanks to professional training, knowledge and experience as well as knowledge of relevant
regulations the qualified personnel is able to perform the assigned tasks and to independently
recognise and avoid any possible dangers themselves.
Instructed person
Instructed persons were instructed by the operating company regarding the assigned tasks and
any possible risks of improper behaviour.
1.6.2 Authorized personnel
WARNING!
Inappropriate operation and maintenance of the drilling machine constitutes a danger for
the personnel objects and the environment.
Only authorized staff may operate the drilling machine!
Persons authorized to operate and maintain should be trained technical personnel and
instructed by the ones who are working for the operating company and for the manufacturer.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 12 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
Obligations of the operating company
Obligations of
the operating
company
train the personnel,
instruct the personnel in regular intervals (at least once a year) on
- all safety standards that apply to the machine,
- the operation,
- generally accepted engineering standards.
check the personnel‘s knowledge level,
document the trainings/instructions,
require personnel to confirm participation in training/instructions by means of a signature,
check whether the personnel is working in a safety and risk-conscious manner and follow-
ing the operating instructions.
define and document the inspection deadlines for the machine in accordance with the Fac-
tory Safety Act and perform an operational risk analysis in accordance with the Work Safety
Act.
Obligations of the operator
Obligations of
the operator
have obtained a training regarding the handling of the drilling machine,
know the function and mode of action,
before taking the machine in operation
- have read and understood the operating manual,
- be familiar with all safety devices and instructions.
Additional
requirements
regarding the
qualification
Additional requirements apply for work on the following machine components:
Electrical parts or operating agents: shall only be performed by an electrician or under the
guidance and supervision of an electrician.
Before starting work on electrical parts or operating agents, following measures are to be
performed in the following order:
disconnect all poles
secure against restarting
check that there is no voltage
1.7 Operator positions
The operator’s position is in front of the drilling machine.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 13Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
1.8 Safety measures during operation
CAUTION!
Risk due to inhaling dusts and mist hazardous to health.
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 machine only with properly functioning safety devices.
Stop the drilling machine immediately if there is a failure on the safety device or if it is not func-
tioning for any reason.
It is your responsibility!
If a safety device has been activated or has failed, the drilling machine must only be used if you
the cause of the fault has been eliminated,
you have verified that there is no danger to personnel or objects.
WARNING!
If you bypass, remove or deactivate a safety device in any other way, you are
endangering yourself and other personnel working with the drilling 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 machine machine includes the following safety devices:
an EMERGENCY STOP push button,
a drilling table with T-slots to fix the workpiece or a vice,
a drill chuck guard, in order to prevent interference with the rotating tool.
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.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 14 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
1.10 Safety check
Check the drilling machine before each start-up or at least once per shift. Inform the person
responsible immediately of any damage, defects or changes in the operating function.
Check all safety devices
at the beginning of each shift (with the machine stopped),
once a week (with the machine in operation),
after all maintenance and repair work.
Check that prohibition, warning and information signs and the labels on the drilling machine.
are legible (clean them, if necessary),
are complete (replace if necessary).
INFORMATION
Organise the checks according to the following table;
1.11 EMERGENCY-STOP push button
ATTENTION!
Also after actuating the EMERGENCY-STOP switch, the drilling spindle is turning -
depending on the previously selected speed - for a few seconds more.
1.11.1 Main switch
In the "0" position, the lockable main switch can be secured against accidental or non-author-
ised switching on by means of a padlock.
The power supply is interrupted by switchingoff the main plug.
Except for the areas marked by the pictogram in the margin. In these areas there might be volt-
age, even if the main switch is switched-off.
General check
Equipment Check OK
Protective covers Mounted, firmly bolted and not damaged
Signs,
Markers
Installed and legible
Date: checked by (signature):
Functional check
Equipment Check OK
EMERGENCY-STOP
push button
After actuating an EMERGENCY STOP push button the drill-
ing machine must be switched off.
Drill chuck protection The drilling machine must only be switched on, if the drill
chuck protection is closed. The engine must switch off when
the drill chuck protection is opened during operation.
Date: checked by (signature):

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 15Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
WARNING!
Dangerous voltage even if the main switch is switched off.
The areas marked by the pictogram might contain live parts, even if the main switch is
switched off.
1.12 Drilling table
Seats for T-slots are attached to the drilling table.
WARNING!
Risk of injury due to workpieces flying off at high speed. Securely fix the workpiece on
the drilling table.
1.13 Drill chuck protection
Adjust the protective equipment to the cor-
rect 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 drill
chuck protection is not closed.
Img.1-1: Drill chuck protection
1.14 Personal protective equipment
For certain work individual protection gear as protective equipment. This includes:
Safety helmet,
protective glasses or face guard,
protective gloves,
safety shoes with steel toe caps,
ear protection.
Before starting work make sure that the required personnel protective equipment is available at
the work place.
CAUTION!
Dirty or contaminated personnel protective equipment can cause illness.
Clean your personal protective equipment
after each use,
regularly once a week.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 16 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
Personal protective equipment for special works
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.
Wear safety shoes when you assemble, disassemble or transport heavy components.
1.15 Safety during operation
We specifically point out the dangers when describing the work with and on the drilling
machine.
WARNING!
Before switching on the drilling machine make sure that there are
no dangers generated for persons,
no objects are damaged.
Avoid any unsafe work methods:
Make sure that nobody is endangered by your work.
The instructions mentioned in these operating instructions have to be strictly observed dur-
ing assembly, operation, maintenance and repair.
Do not work on the drilling machine, if your concentration is reduced, for example, because
you are taking medication.
Observe the accident prevention regulations issued by your Employers Liability Insurance
Association or other supervisory authorities responsible for your company.
Inform the supervisor about all hazards or faults.
Stay on the drilling machine until the machine completely stopped moving.
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.
1.16 Safety during maintenance
Inform the operators in good time of any maintenance and repair works.
Report all safety relevant changes and performance details of the drilling machine or their oper-
ational behaviour. Any changes must be documented, the operating instructions updated and
machine operators instructed accordingly.
1.17 Disconnecting and securing the drilling machine
Switch off the drilling machine with the main switch and secure the main switch with a padlock-
against unauthorised switching-on or switching-on by accident.
All machine parts as well as any dangerous voltages are switched off. Excepted are only the
positions which are marked with the adjoining pictogram.

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10 Page 17Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV GB
1.18 Using lifting equipment
WARNING!
The use of unstable lifting and load suspension equipment that might break under load
can cause severe injuries or even death.
Check that the lifting and load suspension gear
they have sufficient load carrying,
and that it is in perfect condition.
Observe the accident prevention regulations issued by your Employers Liability
Insurance Association or other supervisory authorities responsible for your company.
Fasten the loads properly. Never walk under suspended loads!
1.19 Mechanical maintenance work
Reinstall all protection and safety devices after any maintenance work once the work has been
completed.This includes:
covers,
safety instructions and warning signs,
grounding cables.
Check if they are working properly!
1.20 Accident report
Inform your supervisors and Optimum Maschinen Germany GmbH immediately in the event of
accidents, possible sources of danger and any actions which almost led to an accident (near
misses).
There are many possible causes for "near misses".
The sooner they are notified, the quicker the causes can be eliminated.
1.21 Electrical system
Have the machine and/or the electric equipment checked regularly. Immediately eliminate all
defects such as loose connections, defective wires, etc.
A second person must be present during work on live components to disconnect the power in
the event of an emergency. Disconnect the machine immediately if there is a malfunction in the
power supply!
Comply with the required inspection intervals in accordance with the factory safety directive,
operating equipment inspection DGUV, formerly BVG.
The operator of the machine must ensure that the electrical systems and operating equipment
are inspected with regards to their proper condition, namely,
by a qualified electrician or under the supervision and direction of a qualified electrician,
prior to initial commissioning and after modifications or repairs, prior to recommissioning
and at certain intervals.
The deadlines must be set so that arising, foreseeable defects can be detected in time.
The relevant electro-technical rules must be followed during the inspection.
The inspection prior to initial commissioning is not required if the operator receives confirma-
tion from the manufacturer or installer that the electrical systems and operating equipment com-
ply with the accident prevention regulations, see conformity declaration.
Permanently installed electrical systems and operating equipment are considered constantly
monitored if they are continually serviced by qualified electricians and inspected by means of
measurements in the scope of operation (e.g. monitoring the insulation resistance).

OPTIMUM
MASCHINEN - GERMANY
Safety
Version 1.1.0 dated 2015-02-10Page 18 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVGB
1.22 Inspection deadlines
Define and document the inspection deadlines for the machine in accordance with the Factory
Safety Act and perform an operational risk analysis in accordance with the Work Safety Act.
Also use the inspection intervals in the maintenance section as reference values.

OPTIMUM
MASCHINEN - GERMANY
Technical data
Version 1.1.0 vom 2015-02-10 Seite 19Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BV DE
2 Technical data
The following information represents the dimensions and indications of weight and the manu-
facturer‘s approved machine data for following stated machines.
DH 24 BV DH 28 BV DH 34 BV DH 40 BV
2.1 Electrical connection
3x400V ~50 Hz 3x400V ~50 Hz 3x400V ~50 Hz 3x400V ~50 Hz
2.2 Power drive motor
2-stage motor
0.85 KW at
2000 min-1 , 230V
1.5 kW at
4000 min-1 , 400V
0.85 KW at
2000 min-1, 230V
1.5 kW at
4000 min-1 , 400V
1.5 KW at
2000 min-1 , 230V
2.2 kW at
4000 min-1 , 400V
1.5 KW at
1000 min-1 , 230V
2.2 kW at
2000 min-1 , 400V
2.3 Drilling capacity in steel
St 37 (S235JR, 1.0038)
20mm 24mm 26mm 34mm
2.4 Spindle seat
MT2 MT3 MT4
2.5 T-slots - size
Drilling table 14mm Drilling table 14mm Drilling table 14mm
- Machine foot 14mm Machine foot 14mm
2.6 Table size
300 x 280mm 340 x 360mm 420 x 400mm
2.7 Spindle stroke
85mm 105mm 160mm
2.8 Throat depth
165mm 200mm 285mm
2.9 Machine height
1000mm 1780mm 1960mm
2.10 Column diameter
80mm 92mm 115mm
2.11 Distance spindle - table
max. 515mm max. 860mm max. 790mm
2.12 Dimensions machine foot
447 x 300mm 527 x 350mm 637 x 400

OPTIMUM
MASCHINEN - GERMANY
Technical data
Version 1.1.0 vom 2015-02-10Seite 20 Original operating instructions
DH24BV | DH28BV | DH34BV | DH40BVDE
Emissions
The generation of noise emitted by the drilling-milling machine is 80 dB(A). If the drilling
machine is installed in an area where various machines are in operation, the noise exposure
(immission) on the operator of the drilling machine at the working place may exceed 80 dB(A).
INFORMATION
This numerical value was measured on a new machine under the operating conditions specified
by the manufacturer. The noise behaviour of the machine might change depending on the age
and wear of the machine. Furthermore, the noise emission also depends on production engi-
neering factors, e.g. speed, material and clamping conditions.
INFORMATION
The specified numerical value represents the emission level and does 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 proximity and the period of time, during which the operator
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 should, how-
ever, allow the machine operator to evaluate the hazards and risks more easily.
CAUTION!
Depending on the overall noise exposure and the basic threshold values, machine
operators must wear appropriate hearing protection.
We generally recommend the use of noise protection and hearing protection.
2.12.1 Working surface machine foot
280 x 260mm 320 x 320mm 390 x 390mm
2.13 Weight of machine [kg]
80kg 160kg 270kg
2.14 Spindle speeds (Motor + Gear)
300 - 4,000 min-1 300 - 4,000 min-1 300 - 4,000 min-1 150 - 2,000 min-1
Speed steps
2 222
2.15 Environmental conditions temperature
5 - 35 °C
Relative humidity 25 - 80%
DH 24 BV DH 28 BV DH 34 BV DH 40 BV