Manual d'usuari del martell rotatiu professional Bosch GBH 2-28 D

1. Instruccions de seguretat

Always observe the following safety guidelines when operating the Bosch GBH 2-28 D Rotary Hammer to prevent injury and damage to the tool.

• Seguretat de l'àrea de treball: Mantenir la zona de treball neta i ben il·luminada. Les zones desordenades o fosques conviden a accidents.
• Seguretat elèctrica: Ensure the power cord is undamaged. Do not expose power tools to rain or wet conditions.
• Seguretat personal: Always wear eye protection, hearing protection, and suitable work gloves. Secure loose clothing and long hair.
• Ús i cura de l'eina: No forceu l'eina elèctrica. Feu servir l'eina elèctrica adequada per a la vostra aplicació. Desconnecteu l'endoll de la font d'alimentació abans de fer qualsevol ajust, canviar accessoris o guardar eines elèctriques.
• Kickback Protection: The overload clutch protects the user and the machine in case of overload or binding, preventing abrupt blockage.
• Vibració: L'ús prolongat pot causar lesions relacionades amb les vibracions. Feu pauses regulars i utilitzeu guants antivibracions si cal.

2. Producte acabatview

The Bosch GBH 2-28 D is a professional SDS Plus rotary hammer designed for heavy-duty drilling and chiseling tasks in concrete, masonry, and wood. Familiarize yourself with its components.

Figura 2.1: Davant view of the Bosch GBH 2-28 D Rotary Hammer, showing the main body, SDS Plus chuck, auxiliary handle, and depth stop.

Components clau:

• Mandril SDS Plus: Per a canvis de broques ràpids i segurs.
• Interruptor selector de mode: To select between drilling, hammer drilling, and chiseling modes.
• Interruptor d'activació: For power activation and variable speed control.
• Botó de bloqueig: Per a funcionament continu.
• Nansa auxiliar: Proporciona un adherència i un control addicionals.
• Parada de profunditat: For precise drilling depth adjustment.
• Ball Grommet: Prevents power cord breaks.

3. Configuració

Before operating the rotary hammer, ensure proper assembly and attachment of accessories.

3.1 Fixació de la nansa auxiliar

1. Afloixeu la maneta auxiliar girant-la en sentit antihorari.
2. Slide the handle over the chuck and onto the tool's neck.
3. Ajusteu el mànec a una posició còmoda i segura.
4. Tighten the handle by turning it clockwise until it is firmly secured.

Figura 3.1: Detail of the auxiliary handle, which provides enhanced grip and control during operation.

3.2 Inserció del topall de profunditat

1. Introduïu el topall de profunditat al forat designat del mànec auxiliar.
2. Adjust the depth stop to the desired drilling depth by sliding it in or out.
3. Secure the depth stop by tightening the auxiliary handle.

3.3 Inserting SDS Plus Drill Bits

1. Clean the shank of the drill bit and apply a thin layer of grease.
2. Push the drill bit into the SDS Plus chuck until it locks into place.
3. Pull the drill bit to check if it is securely seated. The SDS Plus system allows for slight axial play, which is normal.

4. Instruccions de funcionament

Understand the various modes and controls for effective and safe operation.

4.1 Selecció del mode

Figura 4.1: lateral view highlighting the mode selector switch for different operations.

• Mode de perforació (només rotació): Use for drilling in wood, metal, and plastics. Set the mode selector to the drill symbol.
• Mode de perforació amb martell (rotació amb martell): Ideal for drilling in concrete and masonry. Set the mode selector to the hammer drill symbol.
• Mode de cincelat (només martelleig): For light chiseling work. Set the mode selector to the chisel symbol. Ensure the tool is unplugged before changing chisel position.

4.2 Control de velocitat variable

The trigger switch provides infinitely variable speed control. Pressing the trigger further increases the speed. This allows for precise control, especially when starting a drill hole or working with different materials.

4.3 Lock-on Button

For continuous operation, press the trigger switch and then engage the lock-on button. To release, press the trigger switch again.

4.4 Consells generals d'operació

Figura 4.2: An operator demonstrating proper two-handed grip while drilling into a concrete surface.

• Always hold the tool firmly with both hands using the main handle and auxiliary handle.
• Apply steady, even pressure. Do not lean into the tool excessively.
• Allow the tool to reach full speed before engaging the workpiece.
• Per a forats profunds, retireu periòdicament la broca per eliminar les restes.

5. Manteniment

Regular maintenance ensures the longevity and optimal performance of your Bosch GBH 2-28 D Rotary Hammer.

• Neteja: After each use, clean the tool's ventilation slots and housing with a soft, dry cloth. Do not use water or chemical cleaners.
• Manteniment del mandril: Keep the SDS Plus chuck clean and lightly greased to ensure smooth bit insertion and removal.
• Inspecció del cable: Regularly inspect the power cord for any signs of damage. Replace immediately if damaged.
• Emmagatzematge: Store the tool in a dry, secure location, out of reach of children. Use the provided carrying case for protection.

6. Solució De Problemes

Consulteu aquesta secció per conèixer els problemes comuns i les seves possibles solucions.

Si el problema persisteix després d'intentar aquestes solucions, poseu-vos en contacte amb un centre de servei autoritzat de Bosch.

7. Especificacions

Technical data for the Bosch GBH 2-28 D Professional Rotary Hammer.

8. Garantia i Suport

Bosch power tools are manufactured to the highest quality standards. For information regarding warranty coverage, service, or technical support, please refer to the warranty card included with your product or visit the official Bosch Power Tools weblloc.

Recursos en línia: www.bosch-pt.com