Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Introduzione

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.

Funzioni chjave:

• 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.

Istruzzioni di sicurità

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.

Avvertimenti Generali di Sicurezza di l'Utensili Elettrici:

• Sicurezza di l'area di travagliu: Mantene a vostra zona di travagliu pulita è ben illuminata. E zone ingombre o scure invitanu l'accidenti. Ùn aduprate micca strumenti elettrici in atmosfere esplosive, cum'è in presenza di liquidi, gas o polveri inflammabili.
• Sicurezza elettrica: E spine di l'utensili elettrici devenu currisponde à a presa. Ùn mudificate mai a spina in alcun modu. Ùn aduprate micca spine adattatori cù utensili elettrici cun messa à terra (terra). Evitate u cuntattu di u corpu cù superfici cun messa à terra o à terra cum'è tubi, radiatori, cucine è frigoriferi.
• Sicurezza persunale: 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.
• Uso è cura di l'arnesi: Ùn furzate micca l'utensile elettricu. Aduprate l'utensile elettricu currettu per a vostra applicazione. Scollegate a spina da a fonte di alimentazione è/o cacciate a batteria da l'utensile elettricu prima di fà qualsiasi aghjustamentu, cambià accessori o almacenà l'utensili elettrichi.
• serviziu: Fate riparare u vostru arnese elettrica da una persona di riparazione qualificata chì utilizeghja solu pezzi di ricambio identici. Questu hà da assicurà chì a sicurità di l'uttellu hè mantinutu.

Cuntenutu di u pacchettu

Quandu si disimballa, assicuratevi chì tutti l'articuli elencati quì sottu sianu presenti è in bonu statu:

• Bosch GBH 3-28 E Rotary Hammer Drill
• Maniglia ausiliaria
• Stop di prufundità
• Casu di trasportu
• Manuale d'uso (stu documentu)

Istituisci

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

1. Attaccà a maniglia ausiliaria:

1. Allentate a maniglia ausiliaria girandula in sensu antiorariu.
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.

Istruzzioni di funziunamentu

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): Per forà in béton, muratura è petra.
• Chiseling (Hammer Action only): Per travaglii di cesellatura ligeri, cum'è a rimuzione di piastrelle o a rottura di piccule sezioni di cimentu.

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

2. Accendi / Off:

• 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:

• Perforazione: 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.
• Cisellatura: Hold the tool firmly with both hands. Guide the chisel along the desired line.
• Prutezzione di sovraccarichi: 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.

Mantenimentu

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

1. Pulizia:

• Always disconnect the plug from the power outlet before any cleaning or maintenance work.
• Keep the ventilation slots clean to prevent overheating.
• Clean the tool holder regularly. Remove dust and debris.
• Asciugate l'alloghju di l'utensile cù un pannu dolce èamp tela. Ùn aduprate micca agenti di pulizia duri o solventi.

2. Lubrication:

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. Storage:

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

Risoluzione di prublemi

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

Specificazioni

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

• Marca: Bosch
• Numero di mudellu: GBH 3-28 E
• Numero di parte di u fabricatore: 611239703
• Fonte di energia: Corded Electric
• Voltage: 230 Volts
• Potenza massima: 800 Watt
• Velocità senza carica: 900 RPM
• Pesu di u produttu: 3.5 chilògrammi
• Materiale: Metallu
• Culore: Neru
• Funzioni speciali: Transmission, Long lifespan, Robust design
• Tipu di trapano: Drill Hammer Rotary
• Portautensili: SDS-plus
• Numeru Globale di Articulu di Cummerciu (GTIN): 03165140220255

Garanzia è Supportu

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 Ufficiale Websitu: www.bosch-professional.com