Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Introducció

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.

Característiques principals:

• 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.

Instruccions de seguretat

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.

Advertències generals de seguretat d'eines elèctriques:

• Seguretat de l'àrea de treball: Mantingueu la vostra zona de treball neta i ben il·luminada. Les zones desordenades o fosques conviden als accidents. No feu servir eines elèctriques en atmosferes explosives, com ara en presència de líquids, gasos o pols inflamables.
• Seguretat elèctrica: Els endolls de les eines elèctriques han de coincidir amb la presa de corrent. No modifiqueu mai l'endoll de cap manera. No utilitzeu cap adaptador d'endoll amb eines elèctriques amb connexió a terra. Eviteu el contacte corporal amb superfícies amb connexió a terra, com ara canonades, radiadors, fogons i neveres.
• Seguretat personal: 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.
• Ús i cura de l'eina: No forceu l'eina elèctrica. Feu servir l'eina elèctrica correcta per a la vostra aplicació. Desconnecteu l'endoll de la font d'alimentació i/o retireu la bateria de l'eina elèctrica abans de fer qualsevol ajust, canviar accessoris o guardar eines elèctriques.
• Servei: Feu que una persona de reparació qualificada faci reparar la vostra eina elèctrica que utilitzi només peces de recanvi idèntiques. Això garantirà que es mantingui la seguretat de l'eina elèctrica.

Contingut del paquet

En desempaquetar, assegureu-vos que tots els elements que s'enumeren a continuació hi siguin presents i estiguin en bon estat:

• Bosch GBH 3-28 E Rotary Hammer Drill
• Mànec auxiliar
• Parada de profunditat
• Maleta de transport
• Manual d'usuari (aquest document)

Configuració

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

1. Fixació de la nansa auxiliar:

1. Afloixeu la maneta auxiliar girant-la en sentit antihorari.
2. Feu lliscar el mànec sobre el coll de l'eina fins a la posició desitjada.
3. Tighten the handle by turning it clockwise until secure. Ensure it is firmly fixed for safe operation.

2. Inserting the Depth Stop:

1. Introduïu el topall de profunditat al forat designat del mànec auxiliar.
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.

Instruccions de funcionament

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 perforar formigó, maçoneria i pedra.
• Chiseling (Hammer Action only): For light chiseling work, such as removing tiles or breaking small sections of concrete.

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

2. Encendre/apagar:

• To switch on, press the On/Off switch.
• Per apagar, deixeu anar l'interruptor d'encesa/apagada.
• Per a un funcionament continu, premeu l'interruptor d'encesa/apagada i, a continuació, premeu el botó de bloqueig. Per apagar, torneu a prémer l'interruptor d'encesa/apagada.

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:

• Perforació: 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.
• Ciselat: Hold the tool firmly with both hands. Guide the chisel along the desired line.
• Protecció de sobrecàrrega: 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.

Manteniment

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

1. Neteja:

• Always disconnect the plug from the power outlet before any cleaning or maintenance work.
• Mantingueu netes les ranures de ventilació per evitar el sobreescalfament.
• Clean the tool holder regularly. Remove dust and debris.
• Netegeu la carcassa de l'eina amb un drap suau iamp tela. No utilitzeu agents de neteja o dissolvents forts.

2. Lubricació:

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. Raspalls de carbó:

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. Emmagatzematge:

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

Resolució de problemes

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

Especificacions

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

• Marca: Bosch
• Número de model: GBH 3-28 E
• Número de peça del fabricant: 611239703
• Font d'alimentació: Elèctric amb cable
• Voltage: 230 Volts
• Potència màxima: 800 watts
• Velocitat sense càrrega: 900 RPM
• Pes del producte: 3.5 quilos
• Material: Metall
• Color: Negre
• Característiques especials: Transmission, Long lifespan, Robust design
• Tipus de trepant: Martell rotatiu
• Portaeines: SDS-plus
• Número d'article comercial global (GTIN): 03165140220255

Garantia i Suport

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 Oficial Weblloc: www.bosch-professional.com