Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Sarrera

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.

Ezaugarri nagusiak:

• 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.

Segurtasun-argibideak

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.

Erremintaren segurtasun-abisu orokorrak:

• Lan eremuko segurtasuna: Mantendu zure lan-eremua garbi eta ondo argiztatuta. Gune nahasi edo ilunetan istripuak gerta daitezke. Ez erabili tresna elektrikorik leherketa-atmosferan, hala nola likido, gas edo hauts sukoien aurrean.
• Segurtasun elektrikoa: Erreminta elektrikoen entxufeak entxufearekin bat etorri behar dira. Ez aldatu inoiz entxufea inola ere. Ez erabili egokitzailerik lurrera konektatutako erreminta elektrikoekin. Saihestu gorputza lurrera konektatutako gainazalekin, hala nola hodiekin, erradiadoreekin, sukaldeekin eta hozkailuekin, kontaktuan jartzea.
• Segurtasun pertsonala: 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.
• Tresnaren erabilera eta zaintza: Ez behartu tresna elektrikoa. Erabili zure aplikaziorako tresna elektriko egokia. Deskonektatu entxufea energia-iturritik eta/edo kendu bateria-paketea tresna elektrikotik doikuntzak egin, osagarriak aldatu edo tresna elektrikoak gorde aurretik.
• Zerbitzua: Erreminta elektrikoa erreminta konponketa-pertsona kualifikatu baten esku utzi ordezko pieza berdinak soilik erabiliz. Horrek erreminta elektrikoaren segurtasuna bermatuko du.

Paketearen edukia

Despaketatzean, ziurtatu behean zerrendatutako elementu guztiak daudela eta egoera onean daudela:

• Bosch GBH 3-28 E Rotary Hammer Drill
• Helduleku osagarria
• Sakonera geldialdia
• Garraio kasua
• Erabiltzailearen eskuliburua (dokumentu hau)

Konfigurazioa

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

1. Helduleku osagarria jartzea:

1. Askatu helduleku laguntzailea erlojuaren orratzen kontrako noranzkoan biratuz.
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. Sakonera-muga finkatu helduleku laguntzailea estutuz.

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.

Funtzionamendu-argibideak

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): Hormigoian, harlanduan eta harrian zulatzeko.
• Chiseling (Hammer Action only): For light chiseling work, such as removing tiles or breaking small sections of concrete.

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

2. Piztu/Itzaltzea:

• 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:

• Zulaketa: 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.
• Txistuketa: Hold the tool firmly with both hands. Guide the chisel along the desired line.
• Gainkarga babesa: 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.

Mantentzea

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

1. Garbiketa:

• Always disconnect the plug from the power outlet before any cleaning or maintenance work.
• Mantendu aireztapen-zirrikituak garbi gehiegi berotzea saihesteko.
• Clean the tool holder regularly. Remove dust and debris.
• Garbitu tresnaren karkasa oihal leun etaamp oihal. Ez erabili garbiketa-agente edo disolbatzaile gogorrak.

2. Lubrifikazioa:

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. Karbono-eskuilak:

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. Biltegiratzea:

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

Arazoak konpontzea

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

Zehaztapenak

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

• Marka: Bosch
• Modelo zenbakia: GBH 3-28 E
• Fabrikatzailearen pieza zenbakia: 611239703
• Energia iturria: Kable elektrikoa
• liburukiatage: 230 Volt
• Gehienezko potentzia: 800 Watt
• Kargarik gabeko abiadura: 900 RPM
• Produktuaren pisua: 3.5 kilogramo
• Materiala: Metala
• Kolorea: Beltza
• Ezaugarri bereziak: Transmission, Long lifespan, Robust design
• Drill Type: Mailu birakaria zulagailua
• Erreminta-euskarria: SDS-plusa
• Merkataritza Globaleko Elementu Zenbakia (GTIN): 03165140220255

Bermea eta Laguntza

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 Ofiziala Webgunea: www.bosch-professional.com