Related Manuals for Kernlochbohrer DKB-352/S-PRO
Summary of Contents for Kernlochbohrer DKB-352/S-PRO
- Page 1 Operating instructions Diamond core drill DKB-352/S-PRO DKB-502/S-PRO Kernlochbohrer GmbH Geigersbühlweg 52 72663 Großbettlingen Phone 07022-5034900 E-mail: info@kernlochbohrer.com Version 0 2. Output 5/2023...
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Page 2: Table Of Contents
Content Introduction and description About this guide Thanks to the buyer Explanation of symbols Safety regulations Technical data Product description Use and care Precautions Mounting and assembly of drill motor and stand Changing drill bits Drill and machine cooling Electrical connection Water supply connection Speed selection Drilling... -
Page 3: Introduction And Description
The machine may only be serviced by persons who have the appropriate qualification and certification. About this guide These operating instructions are for the model DKB-352/S-PRO DKB-502/S-PRO Check the machine model against the nameplate. -
Page 4: Thanks To The Buyer
Thanks to the buyer Thank you for purchasing a core drill of the DKB-PRO series from Kernlochbohrer GmbH. Please read the operating instructions carefully and observe the safety instructions. Through proper operation, you will fully appreciate the outstanding performance of our products. Keep this manual in a safe place for future reference. - Page 5 1. Keep your work area clean and well lit. Disorder or unlit work areas can lead to accidents. 2. Do not work with the power tool near flammable liquids, gases or dust. Power tools produce sparks that can ignite dust or fumes, causing explosions. 3.
- Page 6 8. Avoid unusual postures. Ensure a secure footing and maintain your balance at all times. Do not work on a ladder. This will give you better control of the power tool in unexpected situations. 9. Wear appropriate clothing. Do not wear loose clothing or jewelry. Keep hair, clothing and gloves away from moving parts.
- Page 7 Avoid body contact with grounded surfaces or grounded components such as pipes, radiators, stoves, and refrigerators. Do not expose power tools to rain or wet conditions. Water entering a power tool increases the risk of electric shock. Never use the cord to carry or pull the power tool or to unplug the power tool from the wall outlet.
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Page 8: Technical Data
Technical data Model DKB-352/S-PRO DKB-502-/S-PRO Item no. 6206 6211 Power 3300W 3500W Voltage 230V 230V Current Weight 13.5kg / 13.7kg 14.0kg / 14.2kg Frequency 50-60HZ 50-60HZ Max drilling diameter 402mm (1. Aisle) 502mm (1. Aisle) With stand 202mm (2. Aisle) 302mm (2. -
Page 9: Product Description
Product description DKB-352/S-PRO and DKB-502/S-PRO Display power range LED display Gear switch 1 / 2 / 3 On/Off switch Carbon brushes LED red and yellow light Magnesium housing The LED display shows the current temperature, amperage (A), voltage (V), operating hours and warning indicators. -
Page 10: Use And Care
Use and care Only use diamond core bits which are in a sharp and undamaged condition. Properly maintained diamond core bits with sharp cutting segments do not get bogged down so quickly and are easier to guide. Use the power tool, accessories and drills, etc. in accordance with these operating instructions, taking into account the working conditions and the work to be performed. -
Page 11: Mounting And Assembly Of Drill Motor And Stand
Make sure that the core drill rig is not attached to the drill stand before mounting the drill stand. The DKB-352/S-PRO and DKB- 502/S-PRO core drilling machines may only be operated with a core drill rig. Before inserting the drill motor into the drill stand, the adapter plate must be attached to the drill motor. -
Page 12: Changing Drill Bits
There are 2 types of diamond core bits, wet drill bits and dry drill bits. These usually have a 1 1/4UNC or an M16 female threaded connection. Our DKB-352/S-PRO and DKB-502/S-PRO core drills can only perform wet drilling. The drive spindles all have a 1 1/4UNC external and a G1/2 internal thread connection. -
Page 13: Drill And Machine Cooling
Drill and machine cooling The gearbox of the drill motor has splash lubrication for cooling. The diamond segments of the wet core bit are cooled with water. The electric motor is air-cooled. Electrical connection To reduce the risk of electric shock and to protect the operator, the DKB-352/S- PRO and DKB-502/S-PRO core drill must only be operated via a Portable Residual Current Device, or PRCD personal circuit breaker. -
Page 14: Water Supply Connection
PRO and DKB-502/S-PRO models. If water leaks from this seal, it must be replaced immediately. Speed selection The DKB-352/S-PRO and the DKB-502/S-PRO is equipped with a mechanical 3- speed oil bath gearbox. Select the speed according to the drill diameter (see Technical data p.8). -
Page 15: Drilling
Drilling Always switch on the machine without load. After switching on, next open the water line valve. When water flows from the center of the drill, you can carefully start drilling. Increase the feed pressure as soon as the cutting depth reaches approx. 10mm. Always keep an eye on the condition of the drill motor. -
Page 16: Mechanical Overload Protection
LED goes out. In addition to the display of the power range, the DKB-352/S-PRO and DKB-502/S-PRO is equipped with an LCD display. Among other things, the amperage is displayed in real time. As soon as the core drill enters an... -
Page 17: Overvoltage Protection
Please note that if the machine is operated with a generator, they do not exceed the maximum specified value. If the overvoltage protection trips during operation of the DKB-352/S-PRO and DKB-502/S-PRO core drill, please check the power source and change it if necessary. -
Page 18: Overheating - Thermal Protection
If this happens, do not restart the motor immediately. Always allow the motor to cool down first for approx. 2-3 min. The LCD display of the DKB-352/S-PRO and DKB-502/S-PRO shows, among other things, the temperature in real time. When the motor overheats and the max. -
Page 19: Daily Maintenance Of The Power Tool
Daily maintenance of the power tool Check if all screws and nuts are well tightened. Check that the water seals are intact. Check if the gearbox is tight or if oil is leaking. Check if the PRCD circuit breaker is working properly. Always keep all accessories and the machine clean and dry. -
Page 20: Maintenance And Inspection Plan
Maintenance and inspection plan Regular inspection according to the maintenance and inspection schedule is urgently required. Shorten the intervals between maintenance if you use the product very frequently. Maintenance points In the In the first Every (regular inspection third month or year or required) Each time... -
Page 21: Troubleshooting
Troubleshooting If a defect occurs during operation of the core drill, contact a nearby service station or Kernlochbohrer GmbH immediately. Never disassemble the power tool yourself. Electrical components such as the rotor-stator, printed circuit board, power cable, plug or PRCD circuit breaker, etc. may only be checked and repaired by a certified electrician in accordance with VDE. - Page 22 Drill stuck or jammed The gears are not engaged or Selector lever is not engaged disengaged properly. when turned. Turn it to the desired position until it engages. Have clutch friction discs Slipping clutch worn. replaced. After switching off the High steel content in concrete machine, adjust the position of or very hard material.
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Page 23: Environmental Protection
Flying sparks on the There is a short circuit or Have the rotor checked collector an interruption at the rotor and replaced if necessary. coil. Loss of effectiveness or Clean the spring or adjust loose contact on the its pressure or replace the carbon brush spring. -
Page 24: Noise/Vibration
Noise/Vibration The noise of this power tool is measured according to DIN 45 635, part 21. The sound pressure level at the workplace can exceed 85dB (A); in this case, sound protection measures for the operator are required. Wear hearing protection Hand/arm vibration is typically lower than 2.5m/s². -
Page 25: Exploded View
Exploded view DKB-352/S-PRO and DKB-502/S-PR... - Page 26 Designation Designation Quant Quantity Spur gear Z27-M1.5 Hexagon bolt M5x45 Constant part ring D20 Flat dial (Φ5xΦ9x1) Skeleton oil seal ring AS40x52x7 Key 6x6x45 Water collection ring Pinion Z32-M1.5 Stirred Z40-M1.5 Oil seal AS40x52x7 Außen Φ16x1 Water ring Shaft sleeve Φ38xΦ40x10 Spindle shaft Rotary shaft seal AS15x26x7 Steel ball 3/16"(Φ4.762)
- Page 27 Deep groove ball bearing 6201Z (Φ12xΦ32x10) PRCD(230V) Pinion shaft (M1,5/Z25-M1,5/Z20-M1,5/Z12) Power cable gland Key 4x4x10 Helical gear Z35-M1.25 (DMP-352) Power indicator cover Helical gear Z45-M1.25 (DMP-500) LCD cover Drawn cup needle roller bearings HK1412 (Φ14xΦ20x12) Hexagon head screw M6x25 0-Ring (Φ114xΦ3.1) Motor tail cover Gearbox cover plate Motor handle...
- Page 28 EC Declaration of Conformity The manufacturer/marketer Kernlochbohrer GmbH Geigersbühlweg 52 72663 Großbettlingen hereby declares that the following product Product name: Core drill Typ: DKB-202/H-PRO, DKB-202/P-PRO, DKB-352/S-PRO, DKB-502/P-PRO complies with all relevant provisions of the applied legal regulations (hereinafter) - including their amendments in force at the time of the declaration.
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