Gabatarwa
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.
Mabuɗin fasali:
- 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.
Umarnin Tsaro
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.
Gargadin Tsaro na Kayan Wuta na Gabaɗaya:
- Tsaron Yankin Aiki: Kiyaye yankin aikinku tsabta da haske sosai. Wurare masu duhu ko duhu suna kiran haɗari. Kada a yi amfani da kayan aikin wuta a cikin abubuwan fashewa, kamar a gaban ruwa mai ƙonewa, gas, ko ƙura.
- Tsaron Wutar Lantarki: Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators.
- Tsaro na Keɓaɓɓen: 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.
- Amfani da Kulawa: Kar a tilasta kayan aikin wutar lantarki. Yi amfani da madaidaicin kayan aikin wuta don aikace-aikacenku. Cire haɗin filogi daga tushen wutar lantarki da/ko cire fakitin baturi daga kayan aikin wuta kafin yin kowane gyare-gyare, canza kayan haɗi, ko adana kayan aikin wuta.
- Sabis: ƙwararren mai gyara ya yi amfani da kayan aikin wutar lantarki ta amfani da sassa iri ɗaya kawai. Wannan zai tabbatar da cewa an kiyaye amincin kayan aikin wutar lantarki.
Abubuwan Kunshin
Bayan cire kaya, da fatan za a tabbatar da duk abubuwan da aka jera a ƙasa suna nan kuma suna cikin yanayi mai kyau:
- Bosch GBH 3-28 E Rotary Hammer Drill
- Hannun taimako
- Tsaya Zurfi
- Harkar sufuri
- Jagorar mai amfani (wannan takaddar)
Saita
Before operating the rotary hammer drill, follow these steps for proper setup:
1. Haɗa Maƙallin Taimako:
- Sake hannun mai taimako ta hanyar juya shi gaba da agogo.
- 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:
- Insert the depth stop into the designated hole on the auxiliary handle.
- Adjust the depth stop to the required drilling depth.
- Secure the depth stop by tightening the auxiliary handle.
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.
Umarnin Aiki
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): Don hakowa a cikin kankare, masonry, da dutse.
- Chiseling (Hammer Action only): For light chiseling work, such as removing tiles or breaking small sections of concrete.
Lura: Always switch modes only when the tool is switched off to prevent damage to the gearbox.
2. Kunnawa/Kashe:
- 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:
- Hakowa: 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.
- Chiseling: Hold the tool firmly with both hands. Guide the chisel along the desired line.
- Kariya fiye da kima: 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.
Kulawa
Regular maintenance ensures the longevity and optimal performance of your Bosch GBH 3-28 E rotary hammer drill.
1. Tsaftacewa:
- Always disconnect the plug from the power outlet before any cleaning or maintenance work.
- Tsaftace wuraren samun iska don hana zafi fiye da kima.
- Clean the tool holder regularly. Remove dust and debris.
- Goge gidan kayan aiki tare da taushi, damp zane. Kada a yi amfani da magudanun tsaftacewa ko kaushi.
2. Man shafawa:
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. Ajiya:
Store the tool in a dry, secure place, out of reach of children. Use the transport case for protection.
Shirya matsala
This section addresses common issues you might encounter with your Bosch GBH 3-28 E rotary hammer drill.
| Matsala | Dalili mai yiwuwa | Magani |
|---|---|---|
| Kayan aiki baya farawa. | Babu wutar lantarki; makullin da ya lalace; gogaggen carbon da ya lalace. | 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. |
| Yawan girgiza ko hayaniya. | Loose auxiliary handle; damaged accessory; internal fault. | Tighten auxiliary handle. Inspect and replace damaged accessories. Contact service center. |
| Kayan aiki yayi zafi sosai. | Blocked ventilation slots; continuous heavy load; worn motor components. | Clean ventilation slots. Allow tool to cool down. Avoid prolonged heavy use. Contact service center. |
Ƙayyadaddun bayanai
Detailed technical specifications for the Bosch GBH 3-28 E Rotary Hammer Drill:
- Alamar: Bosch
- Lambar Samfura: GBH 3-28 E
- Lambar Sashin Mai ƙira: 611239703
- Tushen wutar lantarki: Corded Electric
- Voltage: 230 Volts
- Matsakaicin Ƙarfi: 800 Watts
- Gudun No-load: 900 RPM
- Nauyin samfur: 3.5 kilogiram
- Abu: Karfe
- Launi: Baki
- Siffofin Musamman: Transmission, Long lifespan, Robust design
- Drill Type: Rotary Hammer Drill
- Mai riƙe kayan aiki: SDS- da
- Global Trade Item Number (GTIN): 03165140220255
Garanti da Taimako
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 Official Website: www.bosch-professional.com