Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Isingeniso

The Bosch GBH 3-28 E is a powerful rotary hammer drill designed for demanding drilling and chiseling tasks. Featuring an SDS-plus tool holder, it delivers maximum power with minimal vibrations, ensuring high drilling progress and 20% more chiseling performance compared to other rotary hammers in its class. This manual provides essential information for safe and efficient operation, setup, maintenance, and troubleshooting.

Image of the Bosch GBH 3-28 E rotary hammer drill, showcasing its robust design and ergonomic handle. This tool is engineered for heavy-duty applications.

Izici Eziyinhloko:

• Maximum power output for demanding tasks.
• SDS-plus tool holder with dust protection.
• Reduced vibrations for comfortable operation.
• High drilling progress and superior chiseling performance.

Imiyalo yokuphepha

Always observe the following safety precautions when operating the Bosch GBH 3-28 E rotary hammer drill to prevent electric shock, fire, and serious injury.

Izexwayiso Zokuphepha Zethuluzi Lamandla Okujwayelekile:

• Ukuphepha kwendawo yokusebenza: Gcina indawo osebenzela kuyo ihlanzekile futhi ikhanyiswe kahle. Izindawo eziminyene noma ezimnyama zimema izingozi. Ungawasebenzisi amathuluzi kagesi endaweni eqhumayo, njengalapho kukhona uketshezi oluvuthayo, amagesi, noma uthuli.
• Ukuphepha Kagesi: Amapulagi amathuluzi kagesi kumele afane nendawo yokukhipha. Ungalokothi ushintshe ipulagi nganoma iyiphi indlela. Ungasebenzisi noma yimaphi amapulagi e-adaptha anamathuluzi kagesi asekelwe (asekelwe). Gwema ukuthintana komzimba nezindawo ezisekelwe noma ezisekelwe njengamapayipi, ama-radiator, ama-range, kanye neziqandisi.
• Ukuphepha Komuntu Siqu: Always wear eye protection. Use hearing protection when operating for extended periods. Wear a dust mask if operations create dust. Dress properly; do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts.
• Ukusetshenziswa Nokunakekelwa Kwamathuluzi: Ungaphoqi ithuluzi lamandla. Sebenzisa ithuluzi lamandla elilungile kuhlelo lwakho lokusebenza. Nqamula ipulaki emthonjeni wamandla kanye/noma khipha iphekhi yebhethri ethuluzini lamandla ngaphambi kokwenza noma yiziphi izinguquko, ukushintsha izinsiza, noma ukugcina amathuluzi kagesi.
• Isevisi: Yenza ithuluzi lakho lamandla lihlinzekwe ngumuntu oqeqeshiwe olungisa izingxenye ezifanayo kuphela. Lokhu kuzoqinisekisa ukuthi ukuphepha kwethuluzi lamandla kugcinwa.

Okuqukethwe Kwephakheji

Lapho ukhipha, sicela uqinisekise ukuthi zonke izinto ezibalwe ngezansi zikhona futhi zisesimweni esihle:

• Bosch GBH 3-28 E Rotary Hammer Drill
• Isibambo Esisizayo
• Ukujula Stop
• Ikesi lezokuthutha
• Incwadi Yomsebenzisi (le dokhumenti)

Setha

Before operating the rotary hammer drill, follow these steps for proper setup:

1. Ukunamathisela Isibambo Esisizayo:

1. Loosen the auxiliary handle by turning it counter-clockwise.
2. Slide the handle over the collar of the tool to the desired position.
3. Tighten the handle by turning it clockwise until secure. Ensure it is firmly fixed for safe operation.

2. Inserting the Depth Stop:

1. Insert the depth stop into the designated hole on the auxiliary handle.
2. Adjust the depth stop to the required drilling depth.
3. Secure the depth stop by tightening the auxiliary handle.

3. Inserting SDS-plus Drill Bits/Chisels:

1. Clean the shank of the drill bit or chisel and apply a thin layer of grease.
2. Insert the tool into the SDS-plus tool holder with a slight twisting motion until it locks.
3. Pull on the tool to check if it is securely locked. A slight axial play is normal and necessary for the hammer mechanism.

Imiyalelo yokusebenza

Familiarize yourself with the controls and functions before beginning work.

1. Mode Selector Switch:

The GBH 3-28 E features a mode selector switch to choose between different operating modes:

• Drilling (Rotation only): For drilling in wood, metal, ceramics, and plastics without hammer action.
• Hammer Drilling (Rotation with Hammer Action): Ukubhoboza ukhonkolo, ubumba, kanye namatshe.
• Chiseling (Hammer Action only): Ngomsebenzi wokusika amatshe amancane, njengokususa amathayili noma ukuphula izingxenye ezincane zekhonkrithi.

Qaphela: Always switch modes only when the tool is switched off to prevent damage to the gearbox.

2. Ukuvula/Ukuvala:

• To switch on, press the On/Off switch.
• To switch off, release the On/Off switch.
• For continuous operation, press the On/Off switch and then press the lock-on button. To switch off, press the On/Off switch again.

3. Speed Preselection:

The rotary hammer drill features a speed preselection wheel. Adjust the speed according to the material and the size of the drill bit/chisel. Lower speeds are generally used for larger diameters and harder materials.

4. Working with the Tool:

• Ukubhoboza: Apply moderate pressure. Let the tool do the work. Excessive pressure will not speed up drilling but can damage the drill bit and the tool.
• I-Chiseling: Hold the tool firmly with both hands. Guide the chisel along the desired line.
• Ukuvikelwa kokulayisha ngokweqile: The tool is equipped with an overload clutch. If the drill bit jams, the drive to the spindle is interrupted. Always hold the tool firmly with both hands to counteract the reaction forces.

Isondlo

Regular maintenance ensures the longevity and optimal performance of your Bosch GBH 3-28 E rotary hammer drill.

1. Ukuhlanza:

• Always disconnect the plug from the power outlet before any cleaning or maintenance work.
• Gcina izikhala zokungenisa umoya zihlanzekile ukuze ugweme ukushisa ngokweqile.
• Clean the tool holder regularly. Remove dust and debris.
• Sula indlu yamathuluzi ngocingo oluthambile, damp indwangu. Ungasebenzisi izinto zokuhlanza ezinokhahlo noma izincibilikisi.

2. Ukuthambisa:

The SDS-plus tool holder requires periodic lubrication. Apply a thin layer of special grease to the shank of the drill bits and chisels before insertion to ensure smooth operation and reduce wear.

3. Carbon Brushes:

The carbon brushes are wear parts. If the motor sparks excessively or the tool loses power, the carbon brushes may need replacement. This should be performed by an authorized Bosch service center.

4. Isitoreji:

Store the tool in a dry, secure place, out of reach of children. Use the transport case for protection.

Ukuxazulula inkinga

This section addresses common issues you might encounter with your Bosch GBH 3-28 E rotary hammer drill.

Imininingwane

Detailed technical specifications for the Bosch GBH 3-28 E Rotary Hammer Drill:

• Ibhrendi: Bosch
• Inombolo Yemodeli: GBH 3-28 E
• Inombolo Yengxenye Yomkhiqizi: 611239703
• Umthombo wamandla: I-Corded Electric
• Voltage: 230 volts
• Amandla Aphezulu: 800 Watts
• Isivinini esingalayishi: 900 RPM
• Isisindo Somkhiqizo: 3.5 kg
• Okubalulekile: Insimbi
• Umbala: Mnyama
• Izici ezikhethekile: Transmission, Long lifespan, Robust design
• Uhlobo Lokubhola: I-Rotary Hammer Drill
• Isiphathi Sethuluzi: I-SDS-plus
• Global Trade Item Number (GTIN): 03165140220255

Iwaranti kanye Nokusekela

Warranty information for the Bosch GBH 3-28 E rotary hammer drill is typically provided with the purchase documentation. Please refer to your sales receipt or the warranty card included in the product packaging for specific terms and conditions.

For technical support, service, or spare parts, please contact Bosch customer service or visit their official website. Ensure you have your model number (GBH 3-28 E) and serial number (if applicable) ready when contacting support.

Bosch Official Webindawo: www.bosch-professional.com