Indledning
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.
Nøglefunktioner:
- 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.
Sikkerhedsinstruktioner
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.
Generelle sikkerhedsadvarsler for elværktøj:
- Sikkerhed på arbejdsområdet: Hold dit arbejdsområde rent og godt oplyst. Rodede eller mørke områder indbyder til ulykker. Brug ikke elværktøj i eksplosive atmosfærer, f.eks. i nærheden af brandfarlige væsker, gasser eller støv.
- Elektrisk sikkerhed: Stik på elværktøj skal passe til stikkontakten. Modificer aldrig stikket på nogen måde. Brug ikke adapterstik med jordforbundne elværktøjer. Undgå kropskontakt med jordforbundne overflader såsom rør, radiatorer, komfurer og køleskabe.
- Personlig sikkerhed: 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.
- Brug og pleje af værktøj: Tving ikke elværktøjet. Brug det korrekte elværktøj til din opgave. Tag stikket ud af strømkilden og/eller fjern batteriet fra elværktøjet, før du foretager justeringer, skifter tilbehør eller opbevarer elværktøjet.
- Service: Få dit elværktøj efterset af en kvalificeret reparatør, der kun bruger identiske reservedele. Dette vil sikre, at elværktøjets sikkerhed opretholdes.
Pakkens indhold
Ved udpakning skal du sørge for, at alle nedenstående varer er til stede og i god stand:
- Bosch GBH 3-28 E Rotary Hammer Drill
- Hjælpehåndtag
- Dybdestop
- Transport sag
- Brugervejledning (dette dokument)
Opsætning
Before operating the rotary hammer drill, follow these steps for proper setup:
1. Montering af hjælpehåndtaget:
- Løsn hjælpehåndtaget ved at dreje det mod uret.
- Slide the handle over the collar of the tool to the desired position.
- Tighten the handle by turning it clockwise until secure. Ensure it is firmly fixed for safe operation.
2. Inserting the Depth Stop:
- Sæt dybdestoppet ind i det dertil beregnede hul på hjælpehåndtaget.
- Adjust the depth stop to the required drilling depth.
- Fastgør dybdestoppet ved at stramme hjælpehåndtaget.
3. Inserting SDS-plus Drill Bits/Chisels:
- Clean the shank of the drill bit or chisel and apply a thin layer of grease.
- Insert the tool into the SDS-plus tool holder with a slight twisting motion until it locks.
- Pull on the tool to check if it is securely locked. A slight axial play is normal and necessary for the hammer mechanism.
Betjeningsvejledning
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.
- Hammerboring (rotation med hammerfunktion): Til boring i beton, murværk og sten.
- Chiseling (Hammer Action only): Til let mejslingsarbejde, såsom at fjerne fliser eller bryde små betonstykker.
Note: Always switch modes only when the tool is switched off to prevent damage to the gearbox.
2. Tænd/sluk:
- 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:
- Boring: 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.
- Mejsling: Hold the tool firmly with both hands. Guide the chisel along the desired line.
- Overbelastningsbeskyttelse: 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.
Opretholdelse
Regular maintenance ensures the longevity and optimal performance of your Bosch GBH 3-28 E rotary hammer drill.
1. Rengøring:
- Always disconnect the plug from the power outlet before any cleaning or maintenance work.
- Hold ventilationsåbningerne rene for at forhindre overophedning.
- Clean the tool holder regularly. Remove dust and debris.
- Tør værktøjshuset af med en blød, damp klæde. Brug ikke skrappe rengøringsmidler eller opløsningsmidler.
2. Smøring:
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. Kulbørster:
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. Opbevaring:
Store the tool in a dry, secure place, out of reach of children. Use the transport case for protection.
Fejlfinding
This section addresses common issues you might encounter with your Bosch GBH 3-28 E rotary hammer drill.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Værktøjet starter ikke. | Ingen strømforsyning; defekt afbryder; slidte kulbørster. | Check power connection. Ensure switch is fully pressed. Contact service center for brush replacement. |
| Reduced drilling/chiseling performance. | Worn drill bit/chisel; incorrect mode selection; insufficient lubrication of tool holder. | Replace worn accessories. Select correct operating mode. Lubricate tool shank. |
| Overdreven vibration eller støj. | Loose auxiliary handle; damaged accessory; internal fault. | Tighten auxiliary handle. Inspect and replace damaged accessories. Contact service center. |
| Værktøjet overopheder. | Blocked ventilation slots; continuous heavy load; worn motor components. | Clean ventilation slots. Allow tool to cool down. Avoid prolonged heavy use. Contact service center. |
Specifikationer
Detailed technical specifications for the Bosch GBH 3-28 E Rotary Hammer Drill:
- Mærke: Bosch
- Modelnummer: GBH 3-28 E
- Producentens varenummer: 611239703
- Strømkilde: Elektrisk med ledning
- Voltage: 230 volt
- Maksimal effekt: 800 watt
- Hastighed uden belastning: 900 RPM
- Produktvægt: 3.5 kilo
- Materiale: Metal
- Farve: Sort
- Særlige funktioner: Transmission, Long lifespan, Robust design
- Boremaskinetype: Roterende hammerboremaskine
- Værktøjsholder: SDS-plus
- Global Trade Item Number (GTIN): 03165140220255
Garanti og support
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-officielle Webwebsted: www.bosch-professional.com