Bosch Professional 12V System GSR 12V-35 Cordless Drill/Driver Instruction Manual

1. Introduction

This manual provides essential information for the safe and effective operation of your Bosch Professional 12V System GSR 12V-35 Cordless Drill/Driver. Please read these instructions carefully before initial use and retain them for future reference. The GSR 12V-35 is designed for drilling in wood, metal, and plastic, and for driving screws. Its compact design ensures optimal handling, particularly in confined spaces or when working overhead.

2. General Safety Instructions

Always observe general power tool safety warnings and instructions. Failure to follow these warnings and instructions may result in electric shock, fire, and/or serious injury.

• Work Area Safety: Keep your work area clean and well-lit. Cluttered or dark areas invite accidents.
• Electrical Safety: Avoid body contact with earthed or grounded surfaces. Do not expose power tools to rain or wet conditions.
• Personal Safety: Always wear eye protection, hearing protection, and suitable work gloves. Dress appropriately; avoid loose clothing or jewelry.
• Power Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Ensure the switch is in the off-position before connecting to a power source, picking up or carrying the tool.
• Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. Use power tools only with specifically designated battery packs.

3. Product Overview

The Bosch Professional GSR 12V-35 is a compact and powerful cordless drill/driver. Familiarize yourself with its components for safe and efficient operation.

Figure 1: Bosch Professional GSR 12V-35 Cordless Drill/Driver alongside its L-BOXX 102 carrying case. The drill features a compact design with a chuck for bits, a trigger, and a handle. The L-BOXX is a blue, robust storage and transport solution.

Key Components:

• Chuck: For holding drill bits or screwdriver bits.
• Torque Setting Ring: Adjusts the torque for screwdriving applications.
• Gear Selector: Switches between two speed settings (1st gear for high torque, 2nd gear for high speed).
• Direction of Rotation Switch: For forward (drilling/screwing in) and reverse (screwing out) operation.
• On/Off Switch (Trigger): Activates the tool and controls speed.
• Battery Release Button: For removing the battery pack.
• Battery Pack (not included): Provides power to the tool.
• Integrated Usage Display: Indicates battery charge status.
• Belt Clip: For convenient carrying.

4. Setup

4.1. Battery Installation and Removal

1. To Install: Slide the charged 12V battery pack into the base of the tool until it clicks securely into place.
2. To Remove: Press the battery release button and pull the battery pack out of the tool.

Note: This product is supplied without a battery and charger. Ensure you use compatible Bosch Professional 12V System battery packs and chargers.

4.2. Changing Drill/Screwdriver Bits

1. Ensure the tool is switched off and the direction of rotation switch is in the middle position to prevent accidental starting.
2. Rotate the chuck sleeve counter-clockwise until the chuck jaws are open wide enough to insert the bit.
3. Insert the desired drill bit or screwdriver bit into the chuck.
4. Rotate the chuck sleeve clockwise firmly by hand until the bit is securely clamped.

5. Operating Instructions

5.1. Switching On/Off and Speed Control

• To Switch On: Press the On/Off switch (trigger). The harder you press, the higher the rotational speed.
• To Switch Off: Release the On/Off switch.

5.2. Setting the Direction of Rotation

Use the direction of rotation switch to select forward or reverse. For drilling and screwing in, push the switch to the left. For unscrewing or loosening, push the switch to the right. The middle position locks the trigger for safety during transport or bit changes.

5.3. Pre-selecting Torque

The torque setting ring allows you to pre-select the desired torque for screwdriving applications. There are multiple settings, with lower numbers for smaller screws and softer materials, and higher numbers for larger screws and harder materials. The drill symbol indicates maximum torque for drilling.

5.4. Gear Selection

The gear selector allows you to choose between two speed ranges:

• 1st Gear (Low Speed, High Torque): Ideal for driving screws and drilling large diameters.
• 2nd Gear (High Speed, Low Torque): Suitable for drilling small diameters.

Shift gears only when the tool is stationary to prevent damage.

Figure 2: A person wearing safety glasses is using the Bosch Professional GSR 12V-35 Cordless Drill/Driver to drill into a wooden frame. The compact size of the tool allows for precise work in a construction or workshop environment.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your tool.

• Cleaning: Keep the ventilation openings of the power tool clean to prevent overheating. Regularly clean the tool housing with a soft, damp cloth. Do not use solvents.
• Chuck Maintenance: Periodically clean the chuck jaws to ensure proper gripping of bits.
• Storage: Store the tool and battery in a dry, cool place, away from direct sunlight and moisture.
• Battery Care: Do not store battery packs in temperatures above 50°C (122°F) or below -20°C (-4°F).

7. Troubleshooting

8. Technical Specifications

9. Warranty and Support

For information regarding warranty terms and conditions, or for technical support, please refer to the official Bosch Professional website or contact your local Bosch Professional service center. Keep your purchase receipt as proof of purchase.