Optimum OPTI drill D 17Pro User manual

EN
Operating Manual
Version 1.0.3
Drilling machine
D23 Pro - 400V (D17 Pro - is similar)
D26 Pro D33 Pro
Part no. 3003010
3003020
Part no. 3003015
Part no. 3003030
Part no. 3003040
30030302

Version 1.0.3 - 2022-04-06 2 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GBIVZ.fm
Table of contents
1 Safety
1.1 Rating plates.................................................................................................................................................. 5
1.2 Safety instructions (warning notes)................................................................................................................ 6
1.2.1 Classification of hazards .................................................................................................................. 6
1.2.2 Other pictograms.............................................................................................................................. 7
1.3 Intended use.................................................................................................................................................. 8
1.4 Reasonably foreseeable misuse.................................................................................................................... 8
1.4.1 Avoiding misuse............................................................................................................................... 8
1.5 Possible dangers caused by the drilling machine.......................................................................................... 9
1.6 Qualification................................................................................................................................................. 10
1.6.1 Private Users.................................................................................................................................. 10
1.6.2 Obligations of the User................................................................................................................... 10
1.6.3 Craftsman or industrial use ............................................................................................................ 10
1.7 User positions.............................................................................................................................................. 11
1.8 Safety measures during operation............................................................................................................... 11
1.9 Safety devices ............................................................................................................................................. 11
1.10 Safety check ................................................................................................................................................ 12
1.11 Emergency stop button................................................................................................................................ 13
1.12 Drill chuck guard.......................................................................................................................................... 13
1.13 Protective cover of V-belt............................................................................................................................. 13
1.14 Personal protective equipment .................................................................................................................... 14
1.15 Safety during operation................................................................................................................................ 14
1.16 Safety during maintenance.......................................................................................................................... 15
1.16.1 Disconnecting and securing the drilling machine........................................................................... 15
1.17 Using lifting equipment ................................................................................................................................ 15
1.17.1 Mechanical maintenance ............................................................................................................... 15
1.18 Accident report............................................................................................................................................. 15
1.19 Electronics ................................................................................................................................................... 15
1.20 Inspection deadlines.................................................................................................................................... 16
2 Technical specification
2.1 Emissions .................................................................................................................................................... 18
2.2 Dimensions.................................................................................................................................................. 19
2.2.1 D17 Pro.......................................................................................................................................... 19
2.2.2 D23 Pro.......................................................................................................................................... 20
2.2.3 D26 Pro.......................................................................................................................................... 21
2.2.4 D33 Pro.......................................................................................................................................... 22
3 Delivery, interdepartmental transport, assembly and commissioning
3.1 Notes on transport, installation, commissioning .......................................................................................... 24
3.1.1 General risks during internal transport ........................................................................................... 24
3.2 Delivery........................................................................................................................................................ 25
3.3 Unpacking.................................................................................................................................................... 25
3.4 Assembly ..................................................................................................................................................... 25
3.5 Installation requirements.............................................................................................................................. 29
3.5.1 Foundation and ground.................................................................................................................. 29
3.5.2 Fixing.............................................................................................................................................. 29
3.6 First commissioning..................................................................................................................................... 32
3.7 Electrical connection.................................................................................................................................... 32
3.7.1 Warming up the machine ............................................................................................................... 33
4Operation
4.1 Control and indicating elements .................................................................................................................. 34
4.2 Control panel ............................................................................................................................................... 35
4.3 Switching on the machine............................................................................................................................ 35
4.4 Switching off the machine............................................................................................................................ 35
4.5 Drill depth..................................................................................................................................................... 35
4.5.1 Drill depth stop ............................................................................................................................... 35

Version 1.0.3 - 2022-04-06 3Translation of original instruction
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4.5.2 Digital drilling depth ........................................................................................................................36
4.6 Table Inclination ...........................................................................................................................................36
4.7 Speed variation ............................................................................................................................................37
4.7.1 Speed tables...................................................................................................................................37
4.7.2 Rotational speed display.................................................................................................................40
4.8 Before starting work .....................................................................................................................................40
4.9 During work ..................................................................................................................................................40
4.10 Spindle sleeve feed ......................................................................................................................................40
4.11 Disassembly, assembly of drill chucks and drill bits.....................................................................................41
4.12 Quick action - drill chuck ..............................................................................................................................41
4.12.1 Fitting the drill chuck .......................................................................................................................42
4.13 Cooling .........................................................................................................................................................42
5 Determining the cutting speed and the speed
5.1 Table cutting speeds / infeed .......................................................................................................................43
5.2 Speed table ..................................................................................................................................................43
5.2.1 Examples to calculatory determine the required speed for your drilling machine...........................45
6 Maintenance
6.1 Safety ...........................................................................................................................................................46
6.1.1 Preparation .....................................................................................................................................46
6.1.2 Restarting .......................................................................................................................................46
6.2 Inspection and maintenance ........................................................................................................................47
6.3 Repair...........................................................................................................................................................51
6.3.1 Customer service technician...........................................................................................................51
7 Ersatzteile - Spare parts
7.1 Ersatzteilbestellung - Ordering spare parts..................................................................................................52
7.2 Hotline Ersatzteile - Spare parts Hotline ......................................................................................................52
7.3 Service Hotline .............................................................................................................................................52
7.4 Ersatzteilzeichnungen - Spare part drawings...............................................................................................53
7.5 Maschinenschilder - Machine labels ............................................................................................................70
7.6 Schaltplan - Wiring diagram - D17Pro │D23Pro - 230V...............................................................................71
7.7 Schaltplan - Wiring diagram - D23Pro │D26Pro │D33Pro - 400V ...............................................................72
8 Malfunctions
9 Appendix
9.1 Copyright ......................................................................................................................................................75
9.2 Terminology/Glossary ..................................................................................................................................75
9.3 Liability claims/warranty ...............................................................................................................................75
9.4 Storage.........................................................................................................................................................76
9.5 Advice for disposal / Options of reuse:.........................................................................................................76
9.5.1 Decommissioning ...........................................................................................................................77
9.5.2 Disposal of new device packaging..................................................................................................77
9.5.3 Disposal of the old device...............................................................................................................77
9.5.4 Disposal of electrical and electronic components...........................................................................77
9.6 Disposal via municipal collection facilities ....................................................................................................78
9.6.1 Change information operating manual............................................................................................78
9.7 Product follow-up..........................................................................................................................................78

Version 1.0.3 - 2022-04-06 4 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_preface.fm
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
Fax (+49)0951 / 96 555 - 888
Email: [email protected]
Internet: www.optimum-machines.com

Safety
Version 1.0.3 - 2022-04-06 5Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_1.fm
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 notes on the drilling
machine.
Always keep this documentation close to the drilling machine.
1.1 Rating plates
provides further instructions
calls on you to act
listings
Optimum Maschinen
Germany GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
3003010
36,5 kg
500 W
230 V ~50 Hz
D 17Pro
2520 U/min
20
NO.
SN
Year
Master Labels
optimum-maschinen.de
EN
FR
ES
IT
CS
D A
EL
FI
H U
NL
PL
PT
R O
R U
SK
SV Bänkborrmaskin
TR
DE Tischbohrmaschine
Bench drilling machine
Perceuse modèle établi
Taladro de sobremesa
Trapani da banco
Stolní vrtačka
Table boremaskine
ΔΡΑΠΑΝΟ ΠΑΓΚΟΥ
Penkkiporakone
Asztali fúrógép
Boormachine tafelmodel
Wiertarki
Engenho de Furarde Bancada
Masina de gaurit
Станок сверлильный настольный
Sütunlu Matkap
Namizni vrtalni stroj
Master Labels
102 52
Optimum Maschinen
Germany GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
3003015
58 kg
750 W
230 V ~50 Hz
D 23Pro
2440 U/min
20
NO.
SN
Year
optimum-maschinen.de
EN
FR
ES
IT
CS
D A
EL
FI
H U
NL
PL
PT
R O
R U
SK
SV Bänkborrmaskin
TR
DE Tischbohrmaschine
Bench drilling machine
Perceuse modèle établi
Taladro de sobremesa
Trapani da banco
Stolní vrtačka
Table boremaskine
ΔΡΑΠΑΝΟ ΠΑΓΚΟΥ
Penkkiporakone
Asztali fúrógép
Boormachine tafelmodel
Wiertarki
Engenho de Furarde Bancada
Masina de gaurit
Станок сверлильный настольный
Sütunlu Matkap
Namizni vrtalni stroj
Master Labels
Optimum Maschinen
Germany GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
3003020
58 kg
750 W
400 V ~50 Hz
D 23Pro
2440 U/min
20
NO.
SN
Year
optimum-maschinen.de
EN
FR
ES
IT
CS
D A
EL
FI
H U
NL
PL
PT
R O
R U
SK
SV Bänkborrmaskin
TR
DE Tischbohrmaschine
Bench drilling machine
Perceuse modèle établi
Taladro de sobremesa
Trapani da banco
Stolní vrtačka
Table boremaskine
ΔΡΑΠΑΝΟ ΠΑΓΚΟΥ
Penkkiporakone
Asztali fúrógép
Boormachine tafelmodel
Wiertarki
Engenho de Furarde Bancada
Masina de gaurit
Станок сверлильный настольный
Sütunlu Matkap
Namizni vrtalni stroj
Optimum Maschinen
Germany GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
3003030
85 kg
750 W
400 V ~50 Hz
D 26Pro
2440 U/min
20
NO.
SN
Year
Master Labels
optimum-maschinen.de
EN
FR
ES
IT
CS
D A
EL
FI
H U
NL
PL
PT
R O
R U
SK
SL
SV Pelarborrmaskin
TR
DE Säulenbohrmaschine
Upright drilling machine
Perceuse à colonne
Taladro
Trapano a colonna
Sloupová vrtačka
Søjleboremaskine
Επιδαπεδειο Δραπανο
Pylväsporakone
Asztali fúrógép
Kolomboormachine
Wiertarka kolumnowa
Máquina de perfuração
Mașină de găurit cu coloană
Станок вертикальный сверлильный
Steberni vrtalni stroj
Sütunlu Matkap
Stĺpová vŕtačka

Safety
Version 1.0.3 - 2022-04-06 6 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_1.fm
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, Germany
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.
Optimum Maschinen
Germany GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
3003040
132 kg
1,1 kW
400 V ~50 Hz
D 33Pro
1810 U/min
20
NO.
SN
Year
Master Labels
optimum-maschinen.de
EN
FR
ES
IT
CS
D A
EL
FI
H U
NL
PL
PT
R O
R U
SK
SL
SV Pelarborrmaskin
TR
DE Säulenbohrmaschine
Upright drilling machine
Perceuse à colonne
Taladro
Trapano a colonna
Sloupová vrtačka
Søjleboremaskine
Επιδαπεδειο Δραπανο
Pylväsporakone
Asztali fúrógép
Kolomboormachine
Wiertarka kolumnowa
Máquina de perfuração
Mașină de găurit cu coloană
Станок вертикальный сверлильный
Steberni vrtalni stroj
Sütunlu Matkap
Stĺpová vŕtačka
Symbol Alarm expression 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 product, as
well as other types of damage.
No risk of injury to persons.
Information
Practical tips and other important or useful information and notes.
No dangerous or harmful consequences for people or objects.

Safety
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1.2.2 Other pictograms
In case of specific dangers, we replace the pictogram with
or
general danger with a warning of injury to hands, hazardous
electrical voltage,
risk of
entanglement.
Warning: danger of
slipping! Warning: risk of stumbling! Warning: hot surface! Warning: biological hazard!
Warning: automatic start-
up!
Warning: tilting danger! Warning: suspended loads! Caution, danger of
explosive substances!
Switching on forbidden! Do not climb onto the
machine!
Read the operating
instructions before
commissioning!
Pull out the mains plug!
Wear protective glasses! Wear protective gloves! Wear safety shoes! Wear a protective suit!
Use ear protection! Protect the environment! Contact address

Safety
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1.3 Intended use
WARNING!
In the event of improper use of 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 authori-
zation of Optimum Maschinen Germany GmbH, then the drilling machine is being used improp-
erly.
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 will expire, if any constructive, technical or proce-
dural changes are not performed by the company Optimum Maschinen Germany GmbH.
It is also part of the intended use that you
observe the limits of the drilling machine,
observe the operating instructions,
and comply with the inspection and maintenance instructions.
 Technical specification on page 17
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 misuse
Any use other than that specified under "Intended use" or any use beyond that described will be
deemed non-intended use and is not permissible.
Any other use must 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 setting and feed to the material and workpiece.
Clamp workpieces firmly and free of vibration.
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.

Safety
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WARNING!
Risk of injury caused by flying workpieces.
Clamp the workpiece in the machine vice. Make sure that the workpiece is firmly clamped in the
machine vice and that the machine vice is firmly clamped onto 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.
Set the bearing clearance and guides correctly.
Recommendations:
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,
if there is too much pressure, the drill will wear quickly and may even break or jam in the
borehole. If the drill jams, immediately stop the main motor by pressing the emergency stop
switch,
use commercial cooling/lubricating agents for hard materials, e.g. steel and
generally always back the spindle out of the workpiece while it is still turning.
1.5 Possible dangers caused by the drilling machine
The drilling machine was built using state-of-the-art technology.
Nevertheless, there is a residual risk as the drilling machine operates with
at high speeds,
with rotating parts,
electrical voltage and currents.
We have used design and safety engineering to minimize the health risk to personnel 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,
and 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 if cleaning or maintenance work is being carried out, or
is no longer in use.
WARNING!
The drilling machine may only be operated with functional safety devices.
Disconnect the drilling machine immediately, whenever you detect a failure in the safety
devices or when they are not fitted!

Safety
Version 1.0.3 - 2022-04-06 10 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_1.fm
All additional devices installed by the operator must be equipped with the stipulated
safety devices. This is your responsibility as the operator!
 Safety devices on page 11
1.6 Qualification
It is indispensable that the operator is suitably qualified for safe use and secure setting and
operation of the machine.
1.6.1 Private Users
The drilling machine is also used in the private domain. The acumen of people in the private
sector with training in metal working was taken into consideration for creating this operation
manual. Vocational training or further instruction in a metal working profession is a prerequisite
for safe operation of the machine. It is essential that the private user is aware of the dangers
involved in operating this machine.
1.6.2 Obligations of the User
The user must
have read and understood the operating manual,
be familiar with all safety devices and regulations,
be able to operate the drilling machine.
1.6.3 Craftsman or industrial use
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.
WARNING!
Always disconnect the drilling machine from the electrical power supply. This will prevent it from
being used by unauthorized persons. The qualifications of the personnel for the different tasks
are mentioned below:
Operator
The operator has been instructed by the operating company regarding the assigned tasks and
possible risks in case of improper behaviour. Any tasks which need to be performed beyond the
operation in standard mode must only be performed by the operator, if so indicated in these
instructions and if the operator has been expressively commissioned by the operating com-
pany.
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
Due to their professional training, knowledge and experience as well as knowledge of relevant
regulations, qualified personnel are able to perform the assigned tasks and to independently
recognise and avoid any possible dangers.

Safety
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Instructed person
Instructed persons were instructed by the operating company regarding the assigned tasks and
any possible risks of improper behaviour.
INFORMATION
Everyone involved in the assembly, commissioning, operation and maintenance must
be duly qualified,
and 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 drilling machine and other material values,
the correct function of the drilling machine may be affected.
1.7 User positions
The operator position is in front of the drilling machine.
1.8 Safety measures during operation
CAUTION!
Danger due to inhaling dust and mist that are hazardous to health.
Depending on the materials to be machined and the agents used, dusts and mists can
arise that are detrimental to health.
Ensure that the harmful dust and mist generated are safely sucked off at the point of
origin and routed away from the working area or filtered. To do so, use a suitable
extraction unit.
CAUTION!
Risk of fire and explosion by using flammable materials or cooling lubricants.
Extra precautionary measures must be taken before machining flammable materials (e.g.
aluminium, magnesium) or using combustible agents (e.g. spirit) to avert a health
hazard.
1.9 Safety devices
Use the drilling machine only with properly functioning safety devices.
Stop the drilling machine immediately, if a safety device fails or is faulty or becomes ineffective.
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 due to components or workpieces flying off at high speed,
contact with rotating parts,
fatal electrocution,
The drilling machine features the following safety devices:
an emergency stop push button,
a drilling table with T-slots to fix the workpiece or a vice,

Safety
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a drill chuck guard, in order to prevent interference with the rotating tool.
a switch in the protective cover of the V-belt.
INFORMATION
The drilling machine can only be switched on if the drill chuck guard is closed.
WARNING!
Although the isolating safety devices provided and delivered with the machine are
designed to reduce the risks of workpieces being ejected or parts of tools or workpieces
breaking off, they cannot eliminate these risks completely. Always work carefully and
observe the limits of the machining process.
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) and
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;
General check
Equipment Check OK
Guards Mounted, firmly bolted and not damaged
Signs,
Markers
Installed and legible
Date: Checked by (signature):
Functional check
Equipment Check OK
Emergency stop button After the emergency stop button is pressed, the drilling
machine must switch off.
Drill chuck guard The drilling machine may only switch on, if the drill chuck
guard is closed. The engine must switch off when the drill
chuck guard is opened during operation.
Protective cover of V-
belt.
The drilling machine may only switch on, if the protective
cover of V-belt is closed. The integrated switch must shut off
the motor when opening during operation.
Date: Checked by (signature):

Safety
Version 1.0.3 - 2022-04-06 13Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro EN
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1.11 Emergency stop button
ATTENTION!
The drilling spindle keeps turning for a short time even after actuating the emergency
stop push button depending on the preset speed.
1.12 Drill chuck guard
Adjust the guard to the correct height before you start working.
To do so, slacken the clamping screw, set the required height and re-tighten the clamping
screw.
There is a switch integrated in the spindle protection mounting which monitors the closed posi-
tion.
INFORMATION
The machine cannot be started, if the drill chuck guard is not closed.
1.13 Protective cover of V-belt.
INFORMATION
The machine cannot be started, if the protective cover is not closed.

Safety
Version 1.0.3 - 2022-04-06 14 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_1.fm
1.14 Personal protective equipment
For some works you need personnel protective equipment as protective equipment. These are
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.
Personal protective equipment for special works
Protect your face and your eyes: Wear a safety helmet with facial protection when performing
work where your face and eyes are exposed to hazards.
Wear 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 provide information about the specific dangers when working with and on the drilling
machine in the descriptions for these types of work.
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 your operation does not create a safety hazard.
The rules specified in these operating instructions must be observed during 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 applicable to your company.
Inform the supervisor about all hazards or faults.
Stay on the drilling machine until the machine completely stopped moving.
Use the specified personal protective equipment. Ensure you wear close-fitting clothing
and, if necessary, a hairnet.
Do not use protective gloves when drilling.

Safety
Version 1.0.3 - 2022-04-06 15Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_1.fm
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 behavior. Any changes must be documented, the operating instructions updated and
machine operators instructed accordingly.
1.16.1 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 all dangerous voltages are switched off. Excepted are only the
positions which are marked with the adjoining pictogram.
1.17 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 applicable to your company.
Fasten the loads properly. Never walk under suspended loads!
1.17.1 Mechanical maintenance
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!
1.18 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.
1.19 Electronics
Craftsman or industrial use
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.

Safety
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EN
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The operating company 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 set intervals.
The deadlines must be set so that arising, foreseeable defects can be detected in a timely man-
ner.
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).
1.20 Inspection deadlines
Technical or Industrial Use
Define and document the inspection deadlines for the machine in accordance with § 3 of the
Factory Safety Act and perform an operational risk analysis in accordance with § 6 of the Work
Safety Act. Also use the inspection intervals in the maintenance section as reference values.

Technical specification
Version 1.0.3 - 2022-04-06 17Translation of original instruction
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2 Technical specification
The following information represents the dimensions and indications of weight and the manu-
facturer‘s approved machine data. The calculated envisaged life of the machine to EN ISO
13849 and EN ISO 12100 is at least 10 years with a daily operation of 8h at 220 working days
per year when keeping to the ambient conditions, proper use and keeping to the required main-
tenance intervals. Safety-related replacement parts are included in this calculation. Normal
replacement parts such as, for example, bearings or V-belts, are not part of this calculation.
D17 Pro D23 Pro D26 Pro D33 Pro
Electrical connection 230V~50 Hz
optional ~60Hz
230V~50 Hz
or
400V~50 Hz
optional ~60Hz
400V~50 Hz
optional ~60Hz
400V~50 Hz
optional ~60Hz
Spindle drive motor power 500 W 750 W 750 W 1.1 kW
Drilling capacity in steel (S235JR) [mm] Ø 16 mm Ø 25 mm Ø 25 mm Ø 30 mm
Drilling capacity in steel (S235JR) [mm] Ø 12 mm Ø 20 mm Ø 20 mm Ø 25 mm
152 mm 180 mm 210 mm 254 mm
65mm 80mm 85mm 120mm
Spindle seat MT2 MT2 MT3 MT4
Table size
Length x Width of the working surface 235 x 220 mm 280 x 245 mm 330 x 290 mm 475 x 425 mm
Table side tilt / Turning the table ± 45° / 360° ± 45° / 360° ± 45° / 360° ± 45° / 360°
T-slot size / distance / number
12 mm
diagonal
12 mm
diagonal
14 mm
diagonal
14 mm
diagonal
Distance spindle - table [mm] max. 325 mm max. 425 mm max. 720 mm max. 695 mm
Throat depth
Spindle stroke
T-slot size

Technical specification
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EN
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2.1 Emissions
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 and ear protection.
The A-weighted sound pressure level LpA is 73 to 75 dB.
The A-weighted sound power level LWA is 98 to 102 dB.
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 engineering factors, e.g. speed,
material and clamping conditions.
INFORMATION
The following factors influence the actual degree of the noise exposure of the operator:
Characteristics of the working area, e.g. size of 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. 
Maximum distance [mm]
spindle - stand max. 530 mm max. 618 mm max. 1230 mm max. 1180 mm
Working surface machine stand [mm]
Length x Width of the working surface 220 x 230 mm 240 x 250 mm 385 x 260 mm 410 x 325 mm
Machine foot
T-slot size / distance / number
16 mm / 2 /
148 mm
16 mm / 2 /
170 mm
16 mm / 2 /
170 mm
16 mm / 2 /
250 mm
Dimensions of the machine  Dimensions on page 19
Required space Keep a work area of at least one metre around the machine free for
operation and maintenance.
Machine weight [kg] 36.5 58 ( 230V )
63.5 ( 400V ) 85 132
Spindle speeds [ rpm ] 500 - 2520 200 - 2440 200 - 2440 120 - 1810
V-belt speed steps 5 12 12 9
Column diameter [mm] Ø 60 Ø 73 Ø 80 Ø 92
Environmental conditions temperature 5 - 35 °C
Environmental conditions
Relative humidity 25-80%
Operating material
Toothed rod and oiler Acid-free lubricating oil
D17 Pro D23 Pro D26 Pro D33 Pro

Technical specification
Version 1.0.3 - 2022-04-06 19Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_2.fm
This information about the noise emission should, however, allow the operator of the machine
to more easily evaluate the hazards and risks.
2.2 Dimensions
2.2.1 D17 Pro
A-A B-B
AA
BB
148
190
45142
405
15
15
30
170
P
12
182
170
235
220
840
265
P60
525
12
21
Schwerpunkt / Centre of gravity
255
500
585
305
250

Technical specification
Version 1.0.3 - 2022-04-06 20 Translation of original instruction
D17 Pro│D23 Pro│D26 Pro│D33 Pro
EN
D17Pro_D23Pro_D26Pro_D33Pro_GB_2.fm
2.2.2 D23 Pro
A-A
B-B
AA
BB
330
610
1015
305
73 P
465
170 26
50160205
15
20
210
22
245
12
195
230 280
Schwerpunkt / Centre of gravity
575
680
280
350