Bosch GBH 3-28 E Rotary Hammer Drill User Manual

Kupu Whakataki

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.

Āhuatanga matua:

• 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.

Nga Tohutohu Haumaru

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.

Whakatupato Haumaru Utauta Hiko Whanui:

• Haumaru Wāhi Mahi: Kia ma to waahi mahi me te whakamarama pai. Ko nga waahi pouri, nga waahi pouri ranei ka pa mai nga aitua. Kaua e whakamahia nga taputapu hiko i roto i nga hau pupuhi, penei i te waahi o te wai ka mura, te hau, te puehu ranei.
• Haumaru Hiko: Me ōrite ngā mono taputapu hiko ki te putanga hiko. Kaua rawa e whakarerekē i te mono. Kaua e whakamahia ngā mono urutau me ngā taputapu hiko kua whenuatia (kua whenuatia). Āta tirohia kia kore e pā te tinana ki ngā mata kua whenuatia, kua whenuatia rānei pērā i ngā paipa, ngā whakamahana, ngā oumu, me ngā pouaka whakamātao.
• Haumaru Whaiaro: 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.
• Te Whakamahi me te Tiaki Taputapu: Kaua e kaha te taputapu hiko. Whakamahia te taputapu hiko tika mo to tono. Momotuhia te mono mai i te puna hiko me te tango ranei i te putea pākahiko mai i te taputapu hiko i mua i te whakarereketanga, te whakarereke i nga taputapu, te penapena taputapu hiko ranei.
• Ratonga: Tukuna to taputapu hiko e te tangata whakatika tohu ma te whakamahi i nga waahanga whakakapi rite. Ma tenei ka whakarite kia mau tonu te haumaru o te taputapu hiko.

Ihirangi mokete

I te wa e wetewete ana, me whakarite nga mea katoa kei raro nei kei te noho pai, kei te pai:

• Bosch GBH 3-28 E Rotary Hammer Drill
• Kakau awhina
• Kati Hohonu
• Take Waka
• Pukapuka Kaiwhakamahi (tenei tuhinga)

Tatūnga

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

1. Te Whakapiri i te Kākahu Āwhina:

1. Wetekina te kakau āwhina mā te huri ki te taha maui.
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. 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.

Nga Tohutohu Whakahaere

Familiarize yourself with the controls and functions before beginning work.

1. Whakawhiti Kaitohu Aratau:

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): For drilling in concrete, masonry, and stone.
• Chiseling (Hammer Action only): For light chiseling work, such as removing tiles or breaking small sections of concrete.

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

2. Whakakā/Weto:

• 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:

• keri: 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.
• Tutuki: Hold the tool firmly with both hands. Guide the chisel along the desired line.
• Parenga taumaha: 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.

Te tiaki

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

1. Te horoi:

• Always disconnect the plug from the power outlet before any cleaning or maintenance work.
• Kia ma tonu ngā mokowā hauhautanga kia kore ai e wera rawa.
• Clean the tool holder regularly. Remove dust and debris.
• Horoia te whare taputapu ki te ngohengohe, damp kakahu. Kaua e whakamahi i nga taputapu horoi kino me nga whakarewa.

2. Whakahinuhinu:

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. Rokiroki:

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

Raparongoā

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

Whakatakotoranga

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

• Waitohu: Bosch
• Tau tauira: GBH 3-28 E
• Tau Waahanga Kaihanga: 611239703
• Puna Hiko: Hiko Hiko
• Voltage: 230 Volts
• Te Mana Morahi: 800 Watts
• Tere kore-uta: 900 RPM
• Taumaha Hua: 3.5 Kirokaramu
• Rauemi: Te whakarewa
• Tae: Pango
• Nga waahanga motuhake: Transmission, Long lifespan, Robust design
• Momo Drill: Tarai Hammer Drill
• Kaipupuri Utauta: SDS-plus
• Global Trade Item Number (GTIN): 03165140220255

Pūtāhui me te Tautoko

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 Mana Webpae: www.bosch-professional.com