Milwaukee 5426-21 Operator's Manual

Pages 24

Year 2022

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Milwaukee 5426-21 Hammer Specification

The Milwaukee 5426-21 is a robust rotary hammer designed for professional use, featuring advanced technology for enhanced performance and durability. It is powered by a 14-amp motor that delivers optimal performance in heavy-duty applications, making it suitable for both drilling and chipping in concrete. The hammer operates at a no-load speed of 450 RPM and a maximum blow rate of 3,000 BPM, ensuring efficient material penetration and removal.

Equipped with a variable speed dial, the Milwaukee 5426-21 allows for precise speed control, enabling users to match the tool's performance to the specific task at hand. The tool's design incorporates a mechanical clutch to protect the motor and gears when the bit binds during operation, enhancing its longevity and reliability.

Its ergonomic design includes a 360-degree rotating handle for improved user comfort and control, reducing operator fatigue during extended use. The tool also features an AVS (Anti-Vibration System) to minimize vibration, further increasing user comfort and reducing strain.

The Milwaukee 5426-21 is built with a durable metal gear case for added strength and protection of internal components, ensuring it withstands the rigors of demanding job sites. It includes a robust SDS-Max bit system that offers secure bit retention and rapid bit changes, enhancing productivity.

The rotary hammer comes with an 8-foot fixed rubber cord for flexibility and extended reach. This model is also backed by Milwaukee's reputation for quality and a warranty that assures users of its durability and performance. With these features, the Milwaukee 5426-21 is engineered to meet the needs of professionals requiring a powerful and reliable rotary hammer for challenging construction tasks.

Milwaukee 5426-21 Hammer F.A.Q.

How do I change the drill bit on the Milwaukee 5426-21 Hammer?

To change the drill bit, first ensure the tool is turned off and unplugged. Rotate the chuck sleeve counter-clockwise to loosen it, then remove the current bit. Insert the new bit into the chuck, ensuring it's centered and straight, then rotate the chuck sleeve clockwise to tighten.

What maintenance steps should I regularly perform on my Milwaukee 5426-21 Hammer?

Regular maintenance includes cleaning the exterior with a damp cloth, checking the power cord for damage, and lubricating moving parts as per the user manual. Always ensure the tool is unplugged before performing any maintenance.

Why is my Milwaukee 5426-21 Hammer not turning on?

Check that the power source is functioning and that the tool is properly plugged in. Inspect the power cord for any visible damage. If the tool still does not turn on, it may require professional servicing.

What should I do if my hammer drill overheats during use?

Stop using the tool immediately and allow it to cool down. Check for any blockages in the vents and ensure the drill bits are sharp. Avoid overloading the tool, and use it intermittently for heavy-duty tasks to prevent overheating.

How can I improve the performance of my hammer drill when drilling into concrete?

Use a carbide-tipped masonry bit and ensure the hammer function is activated. Apply consistent pressure and allow the tool to work at its own pace without forcing it. This will improve performance and prolong the tool's life.

What is the proper way to store the Milwaukee 5426-21 Hammer?

Store the tool in a dry, secure place, preferably in its carrying case. Ensure the tool is clean and the cord is neatly wrapped. Avoid storing it in direct sunlight or damp areas to prevent damage.

Why is my drill bit getting stuck in the material?

This could be due to a dull bit or applying too much force. Ensure you are using the correct bit for the material and that the bit is sharp. Let the tool perform the work with minimal force applied.

How do I troubleshoot excessive vibration while using the hammer drill?

Check that the drill bit is properly installed and not bent or damaged. Ensure that the material is adequately supported and that you're using the appropriate speed and settings for the task.

Can I use the Milwaukee 5426-21 Hammer for chiseling tasks?

Yes, the Milwaukee 5426-21 can be used for chiseling. Switch to the hammer-only mode and attach a compatible chisel bit. Ensure the tool is properly set up and use it at the recommended angle for optimal results.

What safety precautions should I take when using the Milwaukee 5426-21 Hammer?

Always wear safety goggles, gloves, and hearing protection. Ensure the work area is clear of debris, and the material is securely fastened. Follow all user manual instructions and avoid wearing loose clothing or jewelry that could get caught in the tool.