Kernlochbohrer DKB-132/2H User manual

Operating instructions
DKB-132/2H DKB-165/3SH DKB-200/3SH
Kernlochbohrer GmbH
Geigersbühlweg 52
72663 Großbettlingen
Tel. [phone]
Email: [e-mail]
Version 0 5. Output 01/2022

Content
Introduction and description 3
About this guide 3
Thanks to the buyer 4
Explanation of symbols 4
Safety regulations 4
Product structure 7
Technical data 10
Operation on drill rig 10
Electrical connection 10
Water connection 11
Gearbox shift 12
Drill bits 12
Drill bit change 13
Operating the drilling unit 13
Preparation 14
Mounting the drill stand 15
Drilling with core drill rig 15
Overload protection 17
Safety coupling 17
Segment break 17
After drilling 17
Care and maintenance 18
Environmental protection 20
Noise / Vibration 20
Shutdown carbons 21
Behaviour in the event of disruptions 21
Troubleshooting 22
Warranty 22
EC Declaration of Conformity Attachment
2

Introduction and description
The core drilling equipment of the DKB series is intended for professional use and may
only be operated by instructed persons. Strictly adhere to the instructions in the operating
manual to avoid electric shock or fire.
Our company declines all responsibility in the event of violations of the operating
instructions that may result in injury or machine damage. In addition, all currently
applicable regulations of the Accident Prevention Regulations (UVV) and the Employer's
Liability Insurance Association (BG) must be observed.
In conjunction with the appropriate drill bits, the machine is intended for drilling concrete,
stone and masonry in wet and dry cutting. However, you must ensure that you select the
correct drill bit for the corresponding drilling technique in each case.
The machine may only be serviced by persons who have the appropriate qualification and
certification.
About this guide
These operating instructions are for the models
DKB-132/2H
DKB-165/3SH
DKB-200/3SH
Check the machine model against the type plate.
3

Thanks to the buyer
Thank you for purchasing a core drill of the DKB series from Kernlochbohrer GmbH.
Please read the operating instructions carefully and observe the safety instructions. By
operating it correctly, you will fully appreciate the outstanding performance of our products.
Keep this manual in a safe place for future reference.
If you have any questions about the operation of the core drill, please contact the company
Kernlochbohrer GmbH directly. We are always available to answer your questions.
Note:
Kernlochbohrer GmbH reserves the right to change the design and appearance of the
products and their operating instructions. Future changes to the operating instructions will
be made without prior notice.
Explanation of symbols
Warning of general danger. Failure to observe these safety precautions and instructions
may result in electric shock, fire and/or serious injury.
Safety regulations
❖Read all precautions before commissioning and keep the operating instructions. In
addition, all currently applicable regulations of the Accident Prevention Regulations
(UVV) and the Employer's Liability Insurance Association (BG) must be observed.
❖Please follow the operating instructions carefully, as failure to observe these safety
precautions and instructions may cause electric shock, fire and/or serious injury.
1. Keep your work area clean and well lit. Disorder or unlit work areas can lead to
accidents.
4

2. Do not work with the power tool near flammable liquids, gases or dust. Power tools
produce sparks that can ignite dust or vapours, causing explosions.
3. Keep children and other people away while using the power tool. If you are distracted,
you may lose control of the tool.
4. Be attentive, work with concentration and pay attention to what you are doing. Do not
use a power tool when you are tired or under the influence of drugs, alcohol or
medicines. A moment of inattention can lead to serious injury.
5. Wear suitable protective equipment and always safety glasses. Wearing suitable
protective equipment such as a dust mask, non-slip safety shoes, hard hat or hearing
protection reduces the risk of injury.
6. Avoid unintentional starting of the machine. Make sure that the power tool is switched
off before connecting it to the power supply. If you have your finger on the switch when
carrying the power tool or connect the machine to the power supply when it is switched
on, this can lead to accidents.
7. Remove adjusting tools or spanners before switching on the power tool. A tool or
spanner that is on a rotary device can cause injury.
8. Avoid unusual postures. Make sure you stand securely and keep your balance at all
times. Do not work on a ladder. This will help you control the power tool in unexpected
situations.
9. Wear appropriate clothing. Do not wear loose clothing or jewellery. Keep hair, clothing
and gloves away from moving parts. Loose clothing, jewellery or long hair can be
caught by moving parts.
5

10. Do not overload the appliance. Use the appropriate power tool for your work. With the
appropriate power tool, you will work better and more gently in the specified power
range.
11. Do not use a power tool whose switch is damaged. A power tool that cannot be
switched on and off is dangerous and must be repaired.
12. Unplug the appliance from the mains before making any adjustments, replacing
accessories or putting the appliance aside. This safety measure prevents the power
tool from starting unintentionally.
13. Keep unused power tools out of reach of children. Do not allow persons to use the tool
who are not familiar with it or have not read these instructions. Power tools are
dangerous when used by inexperienced persons.
14. Note that the voltage must not exceed +/-5% of the nominal voltage. Higher voltages
can cause irreparable damage. Note that higher voltage peaks are not generated
when operating the machine via a generator.
15. The plug of the power tool must match the socket. Do not change the plug under any
circumstances. Do not use adapter plugs with earthed forces. Unmodified plugs and
matching sockets reduce the risk of electric shock.
16. Avoid body contact with earthed surfaces or earthed components such as pipes,
radiators, areas and refrigerators.
17. Do not expose power tools to rain or wet conditions. Water entering a power tool
increases the risk of electric shock.
18. Never use the cord to carry or pull the power tool or to unplug it from the wall socket.
Keep it away from heat, oil, sharp edges or moving parts. Damaged, crushed or
twisted cables increase the risk of electric shock.
6

19. When using a power tool outdoors, only use an extension cord that is suitable for
outdoor use. Using a cord that is suitable for outdoor use reduces the risk of electric
shock. When using with an extension cord, also make sure that the extension cord has
the same cross-section as the cord on the machine.
20. The use of products such as cutters, grinders, drills that work sand or other materials
can generate dust and fumes that may contain hazardous chemicals. Check the type
of material you are going to work on and use a suitable respirator.
21. Non-approved spare parts and any modification are prohibited on our products.
22. If operating a power tool in a humid environment is unavoidable, use a ground fault
circuit interrupter. The use of a ground fault circuit interrupter reduces the risk of
electric shock.
23. If a hoover and extractor are required, ensure that they are connected and used
correctly. The use of a hoover can reduce dust-related hazards.
Product structure
7
5
4
2
1
7
3
8
1. Tool holder
2. Oil seal
3. Water connection
4. Motor housing
5. Cruise control
6. Mains switch
7. Main handle
8. Guide handle
9. 2-speed gearbox
DKB-132/2H
9

8
7 8
9
6
5
4
3
2
1
1.Guide handle
2.Water connection
3.Tool holder
4.Oil seal
5.Mains switch
6.Main handle
7.Soft start/overload protection
8.Motor housing
9.Shoulder support
10.3-speed oil bath gearbox
DKB-200/3SH
4
3
2
1
5
6
7
DKB-165/3SH
1. Tool holder
2. Water connection
3. Motor housing
4. Cruise control
5. Mains switch
6. Main handle
7. Guide handle
8. 3-speed gearbox
8
10

Note:
The model DKB-200/3SH has an oil bath gearbox. Please observe the change
intervals for this model according to the operating instructions. Diamond drilling
machines with an oil gear have a very long service life. The friction of the gear
wheels is significantly reduced in an oil gear, which reduces the wear of the gear
wheels and at the same time increases the service life of the machine. As the
machine is subjected to increasing stress and the gear oil heats up, optimum
lubrication is established due to the increasing viscosity of the oil.
CAUTION!
•Use the additional handle supplied with the appliance!
•Hold the handle while operating the machine!
•Wear hearing protection when operating the machine!
CAUTION!
As the core drilling machines of the DKB/H series are mobile devices without
protective equipment, we do not accept any liability for damage or injury caused by
operating the device. We would like to point out that suitable protective equipment
must be worn when operating the core drill and that all drilling should always be
carried out with the aid of a core drill stand.
9

Technical data
In order to constantly improve the product, our company reserves the right to change
the technical data without prior notice.
Operation on drill rig
All DKB/H series drills are designed for use with a drill stand. Only place the machine in
a stable drill stand with precise guides. Make sure that the machine axis is parallel to
the drill stand column. Only use drill stands with sufficient stability.
Electrical connection
The core drilling machines of the DKB/H series are designed in protection class I. To
protect the operator, the machine may only be operated via a residual current device and
is therefore supplied as standard with a PRCD circuit breaker integrated in the cable for
use on an earthed socket!
WARNING!
•The PRCD circuit breaker must not be in the water.
•Do not use PRCD circuit breakers to switch the machine on and off.
•Before starting work, check for proper function by pressing the TEST button.
Model
Rated voltage
(V)
Power
consumptio
n (W)
Frequ
ency
(Hz)
Corresponding
speed (rpm)
Brick drilling
range (mm)
Concrete drilling
range without
upright (mm)
Concrete
drilling range
with upright
(mm)
DKB-132/2H
110/230～
1900
50-60
720-1230/1780
～132
～80
～100
DKB-165/3S
H
110/230～
2300
50-60
530-720/1220/1300
～165
～100
～130
DKB-200/3S
H
110/230～
2100
50-60
100-590/1310/2730
～200
～150
～180
10