Bosch GBH 3-28 E

Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Model: GBH 3-28 E | Brand: Bosch

Introducere

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.

Bosch GBH 3-28 E Rotary Hammer Drill

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.

Caracteristici cheie:

  • 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.

Instrucțiuni de siguranță

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.

Avertismente generale de siguranță a sculelor electrice:

  • Siguranța zonei de lucru: Păstrați zona de lucru curată și bine iluminată. Zonele aglomerate sau întunecate pot provoca accidente. Nu utilizați scule electrice în atmosfere explozive, cum ar fi în prezența lichidelor, gazelor sau prafului inflamabile.
  • Siguranta electrica: Ștecherele sculelor electrice trebuie să se potrivească cu priza. Nu modificați niciodată ștecherul în niciun fel. Nu utilizați adaptoare cu scule electrice împământate. Evitați contactul corpului cu suprafețe împământate, cum ar fi țevi, calorifere, aragazuri și frigidere.
  • Siguranța personală: 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.
  • Utilizarea și îngrijirea uneltelor: Nu forțați unealta electrică. Folosiți unealta electrică corectă pentru aplicația dumneavoastră. Deconectați ștecherul de la sursa de alimentare și/sau scoateți acumulatorul din unealta electrică înainte de a efectua orice reglaje, schimba accesorii sau depozita unealta electrică.
  • Serviciu: Solicitați service-ului dvs. electric de către o persoană calificată care folosește doar piese de schimb identice. Acest lucru va asigura menținerea siguranței sculei electrice.

Conținutul pachetului

La despachetare, vă rugăm să vă asigurați că toate articolele enumerate mai jos sunt prezente și în stare bună:

  • Bosch GBH 3-28 E Rotary Hammer Drill
  • Mâner auxiliar
  • Oprire adâncime
  • Caz de transport
  • Manual de utilizare (acest document)

Înființat

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

1. Atașarea mânerului auxiliar:

  1. Slăbiți mânerul auxiliar rotindu-l în sens invers acelor de ceasornic.
  2. Glisați mânerul peste gulerul uneltei în poziția dorită.
  3. Tighten the handle by turning it clockwise until secure. Ensure it is firmly fixed for safe operation.

2. Inserting the Depth Stop:

  1. Introduceți limitatorul de adâncime în orificiul prevăzut de pe mânerul 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.

Instrucțiuni de operare

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): Pentru găurire în beton, zidărie și piatră.
  • 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. Pornirea/Oprirea:

  • To switch on, press the On/Off switch.
  • To switch off, release the On/Off switch.
  • Pentru funcționare continuă, apăsați comutatorul Pornit/Oprit și apoi apăsați butonul de blocare. Pentru a opri, apăsați din nou comutatorul Pornit/Oprit.

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:

  • Foraj: 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.
  • Dăltuire: Hold the tool firmly with both hands. Guide the chisel along the desired line.
  • Protecție la suprasarcină: 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.

Întreţinere

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

1. Curățare:

  • Always disconnect the plug from the power outlet before any cleaning or maintenance work.
  • Păstrați fantele de ventilație curate pentru a preveni supraîncălzirea.
  • Clean the tool holder regularly. Remove dust and debris.
  • Ștergeți carcasa uneltei cu o lavetă moale șiamp pânză. Nu utilizați agenți de curățare puternici sau solvenți.

2. Lubrifiere:

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. Depozitare:

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

Depanare

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

ProblemăCauza posibilaSoluţie
Instrumentul nu pornește.Fără alimentare cu energie electrică; întrerupător defect; perii de carbon uzate.Check power connection. Ensure switch is fully pressed. Contact service center for brush replacement.
Performanță redusă de găurire/dăltuire.Worn drill bit/chisel; incorrect mode selection; insufficient lubrication of tool holder.Replace worn accessories. Select correct operating mode. Lubricate tool shank.
Vibrații sau zgomot excesive.Loose auxiliary handle; damaged accessory; internal fault.Tighten auxiliary handle. Inspect and replace damaged accessories. Contact service center.
Unealta se supraîncălzește.Blocked ventilation slots; continuous heavy load; worn motor components.Clean ventilation slots. Allow tool to cool down. Avoid prolonged heavy use. Contact service center.

Specificații

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

  • Marca: Bosch
  • Număr de model: GBH 3-28 E
  • Numărul piesei producătorului: 611239703
  • Sursa de alimentare: Electric cu fir
  • Voltage: 230 volți
  • Putere maxima: 800 wați
  • Viteza in gol: 900 RPM
  • Greutate produs: 3.5 kilograme
  • Material: Metal
  • Culoare: Negru
  • Caracteristici speciale: Transmission, Long lifespan, Robust design
  • Tip burghiu: Burghiu cu ciocan rotativ
  • Suport de scule: SDS-plus
  • Global Trade Item Number (GTIN): 03165140220255

Garanție și 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 Website: www.bosch-professional.com

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