Hilti DD 250 Operating Instruction
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Hilti DD 250 Operating Instruction

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DD 250
DD 200/HD 30
DD 200/ST 200
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Summary of Contents for Hilti DD 250

  • Page 1 DD 250 DD 200/HD 30 DD 200/ST 200 English Français Español Português...
  • Page 7 DD 250 DD 200/HD 30 DD 200/ST 200 Original operating instructions ........
  • Page 8 1 Information about the documentation 1.1 About this documentation • Read this documentation before initial operation or use. This is a is a prerequisite for safe, trouble-free handling and use of the product. • Observe the safety instructions and warnings in this documentation and on the product. •...
  • Page 9 Service indicator Hole-starting mode Runtime counter Drilling performance indicator: Increase contact pressure Drilling performance indicator: Reduce contact pressure Protective earth Rated speed under no load 1.3 Information notices On the drill stand, base plate or diamond core drilling machine On the vacuum base plate Upper half of the image: An additional means of securing the drill stand must be employed when the machine is used for horizontal drilling with the vacuum securing method.
  • Page 10 ▶ The type designation and serial number can be found on the rating plate on the product. Make a note of this data in the following table and always refer to it when making an inquiry to your Hilti representative or Hilti Service Center.
  • Page 11 Work area safety ▶ Keep your work area clean and well lit. Cluttered or dark work areas invite accidents. ▶ Do not operate the power tool in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. ▶...
  • Page 12 Use a dust removal system that is as effective as possible. Accordingly, use a suitable vacuum cleaner of the type recommended by Hilti for wood dust and/or mineral dust and which is designed for use with this power tool. Ensure that the workplace is well ventilated. The use of a dust mask suitable for the particular type of dust is recommended.
  • Page 13 Dirty or dusty machines should thus be checked by Hilti Service at regular intervals, especially if used frequently for working on conductive materials.
  • Page 14 DD-HD 30 carriage Hand wheel shaft 1:1 Hand wheel £ Hand wheel shaft 1:3 Leveling indicator (2x) Eccentric pin (lock for the diamond core Carriage lock ¡ drilling machine) Supply cord guide Shear pin (5x) Carriage play adjusting screw (4x) DD-HD 30 drill stand Threaded spindle (accessory) Hole center indicator...
  • Page 15 ▶ Observe the safety rules and operating instructions for the accessories used. ▶ To reduce the risk of injury, use only genuine Hilti core bits and accessories. 3.4 DD 250: Display symbols and explanations on the multifunction display of the diamond core drilling machine For the following indicators, the diamond core drilling machine must be ready for operation (plugged in and with a switched-on PRCD).
  • Page 16 The diamond core drilling machine is drilling. The button for activating hole-starting mode was pressed while the diamond core drilling machine was under load, was being run-in after the carbon brushes had been changed, or was in cool-down mode, or immediately after the diamond core drilling machine had been operated for two minutes in hole-starting mode.
  • Page 17 The diamond core drilling machine is running. The carbon brush wear limit has almost been reached. The indicator helps ensure that the carbon brushes are replaced in good time. The time remaining until the diamond core drilling machine automatically switches off is displayed in hours and minutes.
  • Page 18 To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare parts, consumables and accessories approved by Hilti for use with the product can be found at your local Hilti Center or online at: www.hilti.com Items supplied: DD 250/DD 200 for DD­HD 30...
  • Page 19 DD 200 for drill standDD-ST 200 DD 250 for drill standDD-HD 30 Spare parts Item number Designation 51279 Hose connector 2006843 Carbon brushes 220-240 V 2104230 Carbon brushes 100-127 V 4 Technical data 4.1 Diamond core drilling machine When powered by a generator or transformer, the generator or transformer’s power output must be at least twice the rated input power shown on the rating plate of the electric tool.
  • Page 20 DD 250 DD 200 for DD 200 for DD­HD 30 DD­ST 200 Optimum core bit 1st gear 152 mm … 450 mm 152 mm … 500 mm 152 mm … 500 mm diameter 2nd gear 82 mm … 152 mm 82 mm …...
  • Page 21 Note Hilti metal expansion anchors M16 (5/8") are usually suitable for fastening diamond core drilling equipment to uncracked concrete. Under certain conditions, however, it may be necessary to use an alternative fastening method. Please contact Hilti Technical Service if you have any questions about secure fastening.
  • Page 22 5.5 Fastening the drill stand with the vacuum base plate (accessory) DANGER Risk of injury Hazard presented by a falling diamond core drilling machine. ▶ Fastening the drill stand to the ceiling only by means of the vacuum securing method is not permissible.
  • Page 23 Note The anchor base plate cannot and should not be leveled on the vacuum base plate. 10. Make sure that the drill stand is fastened securely. 5.6 DD-HD 30: Fastening the drill stand with the threaded spindle (accessory) 1. Remove the cover (with built-in end stop) from the top end of the rail. 2.
  • Page 24 6. Check to ensure that the spacer is securely fastened. 5.10 DD­ST 200: Fitting the spacer (accessory) WARNING Risk of injury. The fastening may become overloaded. ▶ When one or more spacers are used, the contact pressure must be reduced in order to avoid overloading the fastening.
  • Page 25 6. Refit the end stop screw to the end of the rail. The safety-relevant end-stop function becomes inoperative if this component is not fitted. 5.13 Fitting the water connection (accessory) CAUTION Risk of personal injury and material damage The hose may become damaged if it is used incorrectly. ▶...
  • Page 26 ◁ The indicator goes out. WARNING Risk of injury Risk of electric shock. ▶ If the indicator continues to light up, further operation of the diamond core drilling machine is not permissible. Have your diamond core drilling machine repaired by Hilti Service.
  • Page 27 ▶ Do not drill in an upward direction at an angle. Note DD 250: Pressing the button for the hole-starting mode (when the machine is idling or operating under no load) reduces the speed for starting holes. This makes it possible for diamond core bits of large diameters to start holes with greater ease and less vibration.
  • Page 28 ▶ After carrying out care and maintenance, check that all protective and safety devices are fitted and that they function with no defects. ▶ If service or repair is required, please contact your salesperson or refer to our contact details at www.hilti.com .
  • Page 29 7.1.1 DD-HD 30: Adjusting the play between rail and carriage Note You can adjust the play between rail and carriage using the four adjusting screws on the carriage. 1. Loosen the adjusting screws using a 5 mm hexagon socket wrench (do not remove the screws). 2.
  • Page 30 ▶ If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by yourself, please contact Hilti Service. 8.1 DD 200: The diamond core drilling machine is not in working order...
  • Page 31 LED indicator. ▶ Bring the diamond core drilling The drilling performance indi- machine to Hilti at your earliest cator does not light up. convenience. The diamond core drilling Supply network fault – undervolt- ▶...
  • Page 32 Malfunction Possible cause Action to be taken The drilling speed is decreas- High steel content (indicated by ▶ Select a more suitable diamond ing. clear water containing metal cut- core bit specification. tings). The diamond core bit is defective. ▶ Check the diamond core bit for damage and replace it if necessary.
  • Page 33 The drill stand is inadequately fas- ▶ Fasten the drill stand more tened. securely. 8.3 DD 250: The diamond core drilling machine is not in working order Malfunction Possible cause Action to be taken The PRCD isn’t switched on.
  • Page 34 8.4 DD 250: The diamond core drilling machine is in working order Malfunction Possible cause Action to be taken The motor has overheated. The ▶ Wait a few minutes until the diamond core drilling machine is motor has cooled down or running in cooling mode.
  • Page 35 Malfunction Possible cause Action to be taken Supply network fault – undervolt- ▶ Check whether other power age occurred. consumers are disrupting the supply from the network or generator. ▶ Check the length of the exten- sion cord used. Supply network fault – dia- mond core drilling machine doesn’t achieve full perfor- mance.
  • Page 36 Most of the materials from which Hilti tools and appliances are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, your old tools, machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti representative for further information.
  • Page 37 10 Manufacturer’s warranty ▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
  • Page 38 Hilti = registered trademark of Hilti Corp., Schaan Pos. 3 | 20160421...

This manual is also suitable for:

Dd 200/hd 30Dd 200/st 200

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