pengenalan
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.
Ciri-ciri Utama:
- 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.
Arahan Keselamatan
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.
Amaran Keselamatan Alat Kuasa Am:
- Keselamatan Kawasan Kerja: Pastikan kawasan kerja anda bersih dan terang. Kawasan bersepah atau gelap mengundang kemalangan. Jangan kendalikan alatan kuasa dalam atmosfera yang mudah meletup, seperti di hadapan cecair mudah terbakar, gas atau habuk.
- Keselamatan Elektrik: Palam alat kuasa mesti sepadan dengan alur keluar. Jangan sekali-kali mengubah suai palam dalam apa jua cara. Jangan gunakan sebarang palam penyesuai dengan alat kuasa yang dibumikan (dibumikan). Elakkan sentuhan badan dengan permukaan yang dibumikan atau dibumikan seperti paip, radiator, julat dan peti sejuk.
- Keselamatan Diri: 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.
- Penggunaan dan Penjagaan Alat: Jangan paksa alat kuasa. Gunakan alat kuasa yang betul untuk aplikasi anda. Putuskan sambungan palam daripada sumber kuasa dan/atau keluarkan pek bateri daripada alat kuasa sebelum membuat sebarang pelarasan, menukar aksesori atau menyimpan alatan kuasa.
- Perkhidmatan: Minta alat kuasa anda diservis oleh pembaikan bertauliah dengan hanya menggunakan alat ganti yang sama. Ini akan memastikan keselamatan alat kuasa dikekalkan.
Kandungan Pakej
Selepas membongkar, sila pastikan semua item yang disenaraikan di bawah ada dan dalam keadaan baik:
- Bosch GBH 3-28 E Rotary Hammer Drill
- Pemegang Bantu
- Hentian Kedalaman
- Kes Pengangkutan
- Manual Pengguna (dokumen ini)
Persediaan
Before operating the rotary hammer drill, follow these steps for proper setup:
1. Memasang Pemegang Bantu:
- Longgarkan pemegang tambahan dengan memusingkannya melawan arah jam.
- 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.
Arahan Operasi
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): Untuk penggerudian dalam konkrit, batu, dan batu.
- Chiseling (Hammer Action only): Untuk kerja memahat ringan, seperti mengeluarkan jubin atau memecahkan bahagian kecil konkrit.
Nota: Always switch modes only when the tool is switched off to prevent damage to the gearbox.
2. Menghidupkan/Mematikan:
- To switch on, press the On/Off switch.
- Untuk mematikan, lepaskan suis Hidup/Mati.
- 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:
- Penggerudian: 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.
- Memahat: Hold the tool firmly with both hands. Guide the chisel along the desired line.
- Perlindungan Lebihan: 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.
Penyelenggaraan
Regular maintenance ensures the longevity and optimal performance of your Bosch GBH 3-28 E rotary hammer drill.
1. Pembersihan:
- Always disconnect the plug from the power outlet before any cleaning or maintenance work.
- Pastikan slot pengudaraan bersih untuk mengelakkan terlalu panas.
- Clean the tool holder regularly. Remove dust and debris.
- Lap perumah alat dengan lembut, damp kain. Jangan gunakan agen pembersih atau pelarut yang keras.
2. Pelinciran:
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. Storan:
Store the tool in a dry, secure place, out of reach of children. Use the transport case for protection.
Menyelesaikan masalah
This section addresses common issues you might encounter with your Bosch GBH 3-28 E rotary hammer drill.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Alat tidak bermula. | Tiada bekalan kuasa; suis rosak; berus karbon yang dipakai. | 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. |
| Getaran atau bunyi yang berlebihan. | Loose auxiliary handle; damaged accessory; internal fault. | Tighten auxiliary handle. Inspect and replace damaged accessories. Contact service center. |
| Alat menjadi terlalu panas. | Slot pengudaraan tersumbat; beban berat berterusan; komponen motor haus. | Clean ventilation slots. Allow tool to cool down. Avoid prolonged heavy use. Contact service center. |
Spesifikasi
Detailed technical specifications for the Bosch GBH 3-28 E Rotary Hammer Drill:
- Jenama: Bosch
- Nombor Model: GBH 3-28 E
- Nombor Bahagian Pengilang: 611239703
- Sumber Kuasa: Elektrik Bertali
- Voltage: 230 Volt
- Kuasa Maksimum: 800 Watt
- Kelajuan tanpa beban: 900 RPM
- Berat produk: 3.5 Kilogram
- Bahan: logam
- warna: Hitam
- Ciri Khas: Transmission, Long lifespan, Robust design
- Drill Type: Gerudi Tukul Putar
- Pemegang alat: SDS-plus
- Global Trade Item Number (GTIN): 03165140220255
Waranti dan Sokongan
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 Webtapak: www.bosch-professional.com