Table of contents Safety Safety warnings (warning notes) ......................6 1.1.1 Classification of hazards...........................6 1.1.2 Other pictograms ............................7 Proper use ..............................8 Possible dangers caused by the bench drill and upright drill..............8 Qualification of employees........................9 1.4.1 Target group .............................9 1.4.2 Authorized persons...........................9 Safety measures during operation......................10 Safety devices ............................10 Safety check ............................11...
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First use ..............................33 Operation Safety ..............................34 Control and indicating elements ......................34 4.2.1 Drilling machine B24H | B28 HB......................34 4.2.2 Drilling machine B28H | B28HV......................35 4.2.3 Control panel B24H ..........................36 4.2.4 Control panel B28H (Vario), B28HB ....................... 36 Turn the machine on B24H / B28H / B28HB ..................
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7.4.4 Wiring diagram B28HV, page 1 - 230V, 60Hz ..................74 7.4.5 Wiring diagram B28HV, page 2 - 230V, 60Hz ..................75 Troubleshooting Appendix Copyright ..............................78 Terminology/Glossary..........................78 Preface Dear customer, Thank you very much for purchasing a product made by company. Company metal working machines offer a maximum of quality, technically company solutions and convince by an outstanding price performance ratio.
Safety Glossary of symbols gives further advice calls on you to get in action enumeration This part of the operating manual does explain the meaning and how to use the warning references contained in this operat- ing manual, ...
Safety warnings (warning notes) 1.1.1 Classification of hazards We classify the safety warnings into various levels. The table below gives an overview of the classification of symbols (pictogram) and warning signs for each specific danger and its (possi- ble) consequences. Pictogram warning alert definition/consequence...
General danger with a warning of injuries to hands, hazardous rotating parts. electrical voltage 1.1.2 Other pictograms Warning of automatic Disconnect main power! start-up! Activation forbidden! Use ear protection! Use protective boots! Use protective gloves! Wear a safety suit! Protect the environment! B24H | B28H | B28HB | B28HV Page 7...
Use safety glasses! Contact address Proper use WARNING! In the event of improper use of the bench drill and upright drill there may be a risk to personnel, there may be a risk to the machine and other items, correct functioning of the bench drill and upright drill may be affected.
INFORMATION Everyone involved in the assembly, commissioning, operation and maintenance must be duly qualified, strictly follow this operating manual. Due to improper use there is a risk for the employee, the machine and further property might be endangered, ...
instruct the staff in regular intervals (at least once a year) on all safety standards that apply to the bench drill and upright drill, the operation, accredited technical guidelines, check the knowledge of the staff, document training / instructions, ...
WARNING! If you bypass, remove or override a safety device in any other way, you are endangering yourself and other persons working on the bench drill and upright drill. The possible consequences are the following injuries due to components or parts of components flying off a high speed, ...
Functional test Item Inspection drill chuck guard The bench drill and upright drill must only switch on when the drill chuck protection is closed. Date: Inspector (signature): EMERGENCY-STOP button CAUTION! After actuating EMERGENCY-STOP button, the drill spindle will turn for a few seconds more, depending on the previously selected speed.
1.10 Separating protective devices 1.10.1 Protective cover of the belt pulleys A protective cover for the belt pulleys is mounted on the drill- ing head. A switch is integrated protective in the protective cover which cover monitors that the cover is closed.
Personal protective equipment Protect your face and your eyes: Wear a safety helmet with a face guard for every work, espe- cially for the kind of work where your face and eyes are exposed to hazards. Use protective gloves when lifting or handling pieces with sharp edges. Wear safety shoes when fitting, dismantling or transporting heavy components.
1.14 Use of lifting equipments WARNING! Use of unstable lifting and load-suspension gear that might break under load can cause very serious injuries or even death. Check the lifting and load-suspension gear on sufficient load capacity, perfect condition. Observe the regulations for the prevention of accidents issued by your association for the prevention of occupational accidents and safety in the workplace or other inspection authorities.
Technical Data The following data which give dimensions and weight are the manufacurer’s authorized machine data Power connection B24H B28HB | B28H 1HP, 115V, 60HZ, 1Ph 1HP, 115V, 60HZ, 1Ph B28HV Motor input capacity 2HP, 230V, 60HZ, 1Ph Drilling capacity B24H B28HB | B28H | B28HV Drilling capacity in steel...
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Other noise sources, e.g. the number of machines, Other processes proceeding nearby and the period during which the operator is exposed to the noise. Furthermore, the admissible pollution level may be different from one country to another due to the national regulations.
Assembly Scope of delivery Please check immediately that nothing had been damaged during transportation and that all components are complete. Compare the delivery volume to the attached packing list. Transport Center of gravity Attachment positions (marking the positions for the attachment position gear) ...
Storage ATTENTION! Improper storage may cause important parts to be damaged or destroyed. Store packed or unpacked parts only under the following ambient conditions. Please follow the instructions and indications on the transportation box: Fragile goods (goods require careful handling) ...
Installation and assembly 3.4.1 Site requirements Organize the working space around the bench drill and upright drill according to the local safety regulations. INFORMATION In order to provide for good functionality and high machining accuracy as well as long durability of the machine the site should fulfill certain criteria.
3.4.2 Assembly WARNING! Danger of crushing when grouping, assembling and mounting the machine components. Assembly of base and column INFORMATION For the mounting of bench drill and upright drill you need a wrench and the hexagon screws which are included in the delivery volume. ...
3.4.3 Assembly of the drilling machine table B24H (B28H B) Insert the toothed rack in the drilling table. Adjust the toothed rack within the drilling machine table in a way that the teeth of the toothed rack cam into the spiral wheel of the drilling table support for the drilling machine table.
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Mount cooling equip- ment. Mount all cooling agent hoses and fas- drilling table ten you these with the hose clamps. cooling equipment column cooling agent hoses Fig.3-4: Assembly drilling table B28H (Vario) INFORMATION longer side toothed rack without toothing guide ring must be upside.
Mount the crank handle to the height adjustment arm of the drilling table. hexagon screw Tighten the crank handle securly. crank handle Fig.3-6: Mounting of crank handle Mounting the boring head Put the distance plate on the column. ...
3.5.1 Mounting In order to provide for the necessary stability of the drilling machine it is necessary to firmly bolt the base of the machine to the foundation. We recommend you to use compound anchor cart- ridges or heavy duty anchors. ...
First use WARNING! Risk by using improper workpiece clamping materials or by operating the machine with inadmissible speed. Only use the clamping materials (e.g. drill chuck) which had been delivered together with the machine or as optional equipment offered by company. Use the working clamping materials only in the provided admissible speed range.
Operation Safety Use the machine only under the following conditions: The machine is in proper working order. The machine is used as prescribed. The instruction manual has been followed. All safety devices are installed and activated. All malfunctions should be eliminated immediately.
4.2.3 Control panel B24H Machine lamp ON/OFF EMERGENCY-STOP but- Selector switch operating mode left-hand / right-hand rotation Push button „OFF“ Push button „ON“ Fig.4-3: Operating element on the control panel B24H 4.2.4 Control panel B28H (Vario), B28HB Machine lamp ON/OFF EMERGENCY-STOP button Selector switch operating mode...
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Switch for the turning direction Standard operation, selection right-handed or left-handed rotation. Potentiometer Speed setting "VARIO" Push button ON The push button „ON“ will start up the rotation of the drill spindle. Push button OFF The push button „OFF“ switches off the rotation of the drill spindle. Coolant pump ON / OFF Switches the coolant pump ON or OFF.
Turn the machine on B24H / B28H / B28HB Turn the main switch on. Select the turning direction. Actuate the push button „ON“. Turn the machine on B28HV Turn the main switch on. Select the turning direction. ...
Speed variation WARNING! Danger due to drill chuck or tools flying off at high speed. Make sure not to exceed the maximum speed of the drill chuck when setting the spindle speed. Switch off the main switch of the machine.
4.7.3 Speed table B28HV Fig.4-11: Speed table B28HV Drill depth stop When drilling several holes of the same depth, you can use the drill depth stop. Loosen the locking Scale screw and turn the graduated collar until the required drilling depth matches with Locking screw the indicator.
Removing, mounting of drill chucks and drills 4.9.1 Keyless drill chuck The drill chuck consists of two parts (No. 1 and No. 2) Hold the upper part (No. 1) of the drill chuck. With the lower part (No. 2) of the drill chuck one can firm and/or loose-turn the cheeks of the upper part (No.1)
4.9.3 Removing the tool or drill chuck with the integrated drill drift on the B28H (B, Vario) CAUTION! Hold the tool or the drill chuck. With the below described procedure the taper mandrel is being loosened from the drill spindle. The tool and/or the drill chuck will fall down.
4.10 Cooling The friction generated during rotation can cause the edge of the tool to become very hot. The tool should be cooled during the drilling process. Cooling the tool with a suitable cooling lubricant ensures better working results and a longer edge life of the tools. This is best realised by a separate cooling equipment.
4.11 Before starting the working process Before you start working, select the required speed. It is depending on the drilling diameter and on the material used. "Speed table B24H“ on page 40, "Speed table B28H - B28HB“ on page 40 WARNING! For drilling jobs, it is necessary to clamp the workpiece firmly to prevent the bit catching on the pieces.
Determining the cutting speed and the speed Table cutting speeds / infeed Material table Recommended infeed f in mm/revolution Recommended cutting speed Material to be processed Drill bit diameter d in mm Vc in m/min 2...3 >3...6 >6...12 >12...25 >25...50 Unalloyed construction steels 30 - 35 0.05...
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Drill bit Ø Speed n in rpm in mm 1062 1274 1415 1769 2123 2477 2831 3539 4246 5662 7077 1146 1274 1592 1911 2229 2548 3185 3822 5096 6369 1042 1158 1448 1737 2027 2316 2895 3474 4632 5790 1062 1327 1592...
Drill bit Ø Speed n in rpm in mm 39.0 40.0 41.0 42.0 43.0 44.0 45.0 46.0 47.0 48.0 49.0 50.0 Examples to calculatory determine the required speed for your drilling machine The necessary speed is depending on the diameter of the drill bit, on the material which is being machined as well as on the cutting material of the drill bit.
Maintenance In this chapter you will find important information about inspection, maintenance, repair. The diagram below shows which of these headings each task falls under. Maintenance Inspection Maintenance Repair Measuring Rough cleaning Mending Testing Fine cleaning Replacing Conserving Adjusting Lubricating...
Safety WARNING! The consequences of incorrect maintenance and repair work may include: very serious injury to employees working on the machine, damage to the machine. Only qualified staff should carry out maintenance and repair work on the machine. 6.1.1 Preparation WARNING! Only carry out work on the machine if it has been disconnected from the main power...
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Interval Where? What? How? • Lubricate the column with commercial oil, machine oil, motor oil. • Lubricate the rack regularly with commercial grease (e.g. friction bearing grease). column every month toothed rack Img.6-2: B24H | B28HB | B28H | B28HV •...
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Interval Where? What? How? Lubricate all oilers with machine oil, do not use a grease gun or similar greasing equipment. Use the oil bottle in included with the machine. "Operating material“ on page 17 Oiler every month Lubricate Fig.6-4: Oiler B24H | B28HB | B28H | B28HV every six Check the electrical equipment / parts of the drilling machine.
Interval Where? What? How? CAUTION! Parts will throw out at high pressure. When disas- sembling, make sure that only skilled staff will maintain and repair the machine. spring barrel circlip as required Img.6-6: Spindle return spring flat spiral spring spring barrel circlip Img.6-7: Exploded view of the spring barrel INFORMATION!
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Troubleshooting Problem Cause / possible effects Solution FI protective switch on • an unusual FI protective switch is • "Power supply“ on page 33 machines with frequency con- being used verter triggers. Motor gets hot • wrong power supply Noise during working •...
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Problem Cause / possible effects Solution Working spindle rattling on • Excessive slack in bearing • Reduce bearing slack or replace rough piece surfaces bearing • Working spindle goes up and down • Readjust bearing slack (fixed • Adjustment strip loose bearing) •...
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Appendix Copyright This documentation is copyright. All derived rights are also reserved, especially those of trans- lation, re-printing, use of figures, broadcast, reproduction by photo-mechanical or similar means and recording in data processing systems, neither partial nor total. The company reserves the right to make technical alternations without prior notice. Terminology/Glossary Term Explanation...
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