Berserker SDS-Max Rotary Hammer Drill 42M

1. Introduction

Thank you for choosing the Berserker SDS-Max Rotary Hammer Drill Model 42M. This powerful and versatile tool is designed for heavy-duty drilling and demolition tasks in concrete, brick, masonry, and other hard materials. To ensure safe and efficient operation, please read this manual thoroughly before first use and keep it for future reference. Proper understanding of this tool's functions and safety precautions will maximize its performance and extend its lifespan.

2. General Safety Instructions

Always follow basic safety precautions to reduce the risk of fire, electric shock, and serious personal injury. Keep this manual for future reference.

• Work Area Safety: Keep the work area clean and well-lit. Cluttered or dark areas invite accidents. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
• Electrical Safety: Power tool plugs must match the outlet. Never modify the plug. Do not abuse the cord. Keep cord away from heat, oil, sharp edges, or moving parts.
• Personal Safety: Always wear eye protection. Use hearing protection when operating the tool. Wear a dust mask if working in dusty conditions. Dress properly; avoid loose clothing or jewelry.
• Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the plug from the power source before making any adjustments, changing accessories, or storing power tools.
• Safety Clutch: This tool is equipped with a safety clutch designed to protect the user's wrist from injury by reducing sudden high torque reactions if the drill bit jams.
• Vibration Control System: The enhanced Anti-Vibration Technology (AVT) is designed to reduce vibrations, minimizing user fatigue during extended operation.

3. Product Overview

Familiarize yourself with the components of your Berserker SDS-Max Rotary Hammer Drill.

Figure 3.1: Main components of the Berserker SDS-Max Rotary Hammer Drill. Key features include the SDS-Max Tool Free System, 3 Function Knob, External Grease Filler, Vibration Control System, ON/OFF Switch, Ergonomic Rubber Handle, 6 Variable Speed Control, Replaceable Carbon Brush, and 360° Adjustable Handle.

• SDS-Max Tool Free System: Allows for quick and easy bit changes without additional tools.
• 3 Function Knob: Selects between drilling, hammer drilling, and chiseling modes.
• External Grease Filler: For convenient lubrication of internal components.
• Vibration Control System: Reduces vibration for improved user comfort and control.
• ON/OFF Switch: Controls power to the tool.
• Ergonomic Rubber Handle: Provides a secure and comfortable grip.
• 6 Variable Speed Control: Adjusts the rotation speed for different applications and materials.
• Replaceable Carbon Brush: Allows for easy replacement of worn carbon brushes, extending tool life.
• 360° Adjustable Handle: Can be positioned for optimal control and comfort during various tasks.

4. Setup

4.1 Attaching the Auxiliary Handle

The auxiliary handle can be rotated 360 degrees to suit various working positions. Loosen the handle clamp, adjust the handle to the desired position, and then securely tighten the clamp.

4.2 Installing SDS-Max Bits

1. Clean the shank of the SDS-Max bit and apply a small amount of grease to it.
2. Pull back the SDS-Max tool-free system collar.
3. Insert the bit into the chuck until it locks into place. Release the collar.
4. Pull on the bit to ensure it is securely seated. The SDS-Max system allows for slight axial movement of the bit, which is normal and necessary for hammer action.

4.3 Using the SDS Max to SDS Plus Adaptor Chuck

For SDS-Plus bits, attach the provided SDS Max to SDS Plus Adaptor Chuck into the SDS-Max tool-free system as described above. Then, insert SDS-Plus bits into the adaptor chuck.

5. Operating Instructions

5.1 Selecting Operating Mode

The 3 Function Knob allows you to select the appropriate mode for your task. Rotate the knob to align with the desired icon.

Figure 5.1: The 3 Function Knob allows selection between Chisel Position Adjustment, Hammer Only, and Rotary Hammer modes.

• Rotary Hammer Mode (Drilling with Hammer Action): For drilling in concrete, brick, and masonry. This mode combines rotation and hammering for efficient material removal.
• Hammer Only Mode (Chiseling/Demolition): For chiseling, chipping, and demolition work. The bit will not rotate in this mode, only hammer.
• Chisel Position Adjustment: Allows you to rotate the chisel to the desired angle before locking it in the Hammer Only mode.

5.2 Variable Speed Control

The tool features a 6-speed variable control. Adjust the speed according to the material and the specific task. Lower speeds are generally used for larger diameter bits or tougher materials, while higher speeds are suitable for smaller bits or softer materials.

5.3 Drilling and Demolition

Apply firm, steady pressure. Allow the tool to do the work; excessive force can reduce efficiency and damage the tool or bit. The 7.38 ft.lbs (10 Joules) of impact energy ensures rapid drilling and chipping in various hard materials.

Figure 5.2: Demonstrating the drill's capability for heavy-duty concrete drilling, leveraging its 7.38 ft.lbs impact energy.

Figure 5.3: The SDS-Max Heavy Duty Hammer efficiently chips and breaks up bricks, concrete, and tiles.

5.4 Safety Clutch Activation

In the event that the drill bit binds or jams in the workpiece, the safety clutch will activate to prevent sudden torque reaction and protect the user from injury. If this occurs, release the trigger immediately, clear the obstruction, and then resume operation.

Figure 5.4: The mechanical safety clutch protects the user's wrist by reducing sudden high torque reactions if the bit jams.

Figure 5.5: The tool in action, demonstrating its use for demolition tasks on a brick wall.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your tool. Always disconnect the tool from the power source before performing any maintenance.

6.1 Cleaning

After each use, clean the tool with a soft cloth to remove dust and debris. Do not use harsh chemicals or abrasive cleaners. Keep ventilation openings clear to prevent overheating.

6.2 Lubrication (External Grease Filler)

The tool features an external grease filler for convenient lubrication. Periodically check and replenish the grease as needed to ensure smooth operation of the hammering mechanism. Use only recommended grease types for rotary hammer drills.

6.3 Carbon Brush Replacement

The carbon brushes are consumable parts and will wear down over time. When the tool's performance decreases or it stops working, the carbon brushes may need replacement. The tool is designed with easily replaceable carbon brushes. Refer to the product overview image for the location of the replaceable carbon brush cover. Replace both brushes at the same time with genuine Berserker replacement parts.

7. Troubleshooting

This section addresses common issues you might encounter. For problems not listed here, contact customer support.

8. Specifications

Key technical specifications for the Berserker SDS-Max Rotary Hammer Drill Model 42M.

• Model: 42M
• Power Input: 1600 Watts (13 Amperes)
• Voltage: 120 Volts (AC)
• No-Load Speed: 0-630 RPM
• Impact Rate: 0-3800 BPM
• Impact Energy: 10 Joules (7.38 ft.lbs)
• Chuck Type: SDS-Max
• Max Chuck Size: 1-9/16 inches
• Functions: 3 (Rotary Hammer, Hammer Only, Chisel Position Adjustment)
• Special Features: Variable Speed, Vibration Control, Safety Clutch, External Grease Filler, Replaceable Carbon Brushes
• Cord Length: 2 Meters
• Product Dimensions (L x W x H): 46.69 x 11.18 x 27.58 cm
• Weight: 7.26 kg (16 lbs)
• Included Components: 1 Rotary Hammer Drill, 1 Point Chisel, 1 Flat Chisel, 1 Drill Bit (22mm), 1 Universal Lubricating Grease, 1 Wrench, 1 Carry Case, 1 Set Replaceable Carbon Brushes, 1 Auxiliary Handle, 1 SDS Max to SDS Plus Adaptor Chuck, 1 User Manual.

9. Warranty & Support

9.1 Warranty Information

Berserker provides a 24-month warranty for this product, covering defects in materials and workmanship from the date of purchase. This warranty does not cover damage caused by misuse, abuse, normal wear and tear, or unauthorized repairs. Please retain your proof of purchase for warranty claims.

9.2 Customer Support

For technical assistance, warranty claims, or to order replacement parts, please contact Berserker customer support. Refer to the contact information provided with your purchase documentation or visit the official Berserker website for current support details.