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Robert Bosch GmbH Power Tools Division 70745 Leinfelden-Echterdingen GBH Professional Germany www.bosch-pt.com 3-28 DRE | 3-28 DFR 1 619 929 E56 (2009.04) PS / 320 UNI de Originalbetriebsanleitung el Πρωτότυπο οδηγιών χρήσης sr Originalno uputstvo za rad en Original instructions tr Orijinal işletme talimat...
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OBJ_BUCH-770-003.book Page 3 Tuesday, April 7, 2009 9:51 AM GBH 3-28 DFR Professional GBH 3-28 DRE Professional 1 619 929 E56 | (7.4.09) Bosch Power Tools...
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OBJ_BUCH-770-003.book Page 4 Tuesday, April 7, 2009 9:51 AM (3x) 1 619 929 E56 | (7.4.09) Bosch Power Tools...
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OBJ_BUCH-770-003.book Page 5 Tuesday, April 7, 2009 9:51 AM 1 619 929 E56 | (7.4.09) Bosch Power Tools...
Loose clothes, jewellery or long hair can the power tool. Keep cord away from be caught in moving parts. heat, oil, sharp edges and moving parts. Damaged or entangled cords increase the risk of electric shock. 1 619 929 E56 | (7.4.09) Bosch Power Tools...
OBJ_BUCH-770-003.book Page 21 Tuesday, April 7, 2009 9:51 AM English | 21 Technical Data Rotary Hammer GBH 3-28 DRE GBH 3-28 DFR Professional Professional Article number 3 611 B3A 0.. 3 611 B4A 0.. Speed control Stop rotation Right/left rotation Quick change chuck –...
OBJ_BUCH-770-003.book Page 22 Tuesday, April 7, 2009 9:51 AM 22 | English Noise/Vibration Information GBH 3-28 DRE GBH 3-28 DFR Professional Professional Measured values determined according to EN 60745. Typically the A-weighted noise levels of the product are: Sound pressure level...
Engineering Certification depth stop correspond with the desired drilling depth X. Selecting Drill Chucks and Tools Robert Bosch GmbH, Power Tools Division D-70745 Leinfelden-Echterdingen Operating Mode Leinfelden, 10.10.2008 Material Assembly Concrete Ø...
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Inserting the Quick Change Chuck (see figure E) Changing the Key Type Drill Chuck Use only model-specific original equipment (GBH 3-28 DRE) and pay attention to the number of identifi- To work with tools without SDS-plus (e.g., drills cation grooves 18. Only quick-change...
4 is not damaged. Removing Drilling Tools without SDS-plus A damaged dust protection cap should be (GBH 3-28 DRE) changed immediately. We recommend hav- ing this carried out by an after-sales service. Turn the sleeve of the key type drill chuck 15...
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The vacuum cleaner must be suitable for the material being worked. When vacuuming dry dust that is especially detrimental to health or carcinogenic, use a special vacuum cleaner. 1 619 929 E56 | (7.4.09) Bosch Power Tools...
Right rotation: Turn the rotational direction switch 13 to the stop in position Left rotation: Turn the rotational direction switch 13 to the stop in position Bosch Power Tools 1 619 929 E56 | (7.4.09)
For safe and proper working, always keep Australia, New Zealand and Pacific Islands the machine and ventilation slots clean. Robert Bosch Australia Pty. Ltd. A damaged dust protection cap should be Power Tools changed immediately. We recommend...