Maintenance, Replacing carbon brushes Lubrication

serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool.

MAINTENANCE

CAUTION:

•Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

•Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

Replacing carbon brushes

Lubrication

This tool requires no hourly or daily lubrication because it has a grease-packed lubrication system. Lubricate the tool every time the carbon brushes are replaced.

1. Screws

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Run the tool for several minutes to warm it up. Switch off

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1.Commutator

2.Insulating tip

3.Carbon brush

and unplug the tool.

Loosen the six screws and remove the handle. Note that the top screws are different from other screws. Disconnect the connector by pulling it.

1. Connector

When the resin insulating tip inside the carbon brush is exposed to contact the commutator, it will automatically shut off the motor. When this occurs, both carbon brushes should be replaced. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.

Use a screwdriver to remove the brush holder cover.

		1.	Screwdriver
	1	2.	Brush holder
2			cover
2

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Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.

		1. Screwdriver
	1	2. Brush holder cap
2

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Remove the crank cap using a hex wrench. Rest the tool on the table with the bit end pointing upwards. This will allow the old grease to collect inside the crank housing.

2	1.	Crank cap
1	2.	Hex wrench

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Wipe out the old grease inside and replace with a fresh grease (30 g). Use only Makita genuine hammer grease (optional accessory). Filling with more than the specified amount of grease (approx. 30 g) can cause faulty hammering action or tool failure. Fill only with the specified amount of grease.

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HR3000C specifications

The Makita HR3000C is a powerful and versatile rotary hammer designed for heavy-duty applications in the construction and renovation sectors. Known for its robust performance, the HR3000C features a 3-mode operation: hammering only, hammering with rotation, and rotation only. This functionality makes it suitable for a wide range of tasks including drilling into concrete, masonry, and heavy materials, as well as for chiseling and demolition work.

One of the standout features of the HR3000C is its impressive motor, delivering 800 watts of power. This ensures high performance even in tougher applications, enabling users to tackle demanding projects without worrying about overheating or diminished performance. The hammering rate of the HR3000C is up to 4,600 BPM, allowing for fast penetration into hard surfaces, thus enhancing productivity on job sites.

The HR3000C is equipped with a user-friendly design that focuses on comfort and control. It comes with a rubberized grip handle that reduces vibrations, making it easier to handle during extended use. The side handle can be adjusted to provide additional leverage and stability, ensuring that users can maintain precision and control regardless of the angle or position of the tool.

In terms of durability, the HR3000C is built with high-quality materials that withstand rigorous use. Its housing is designed to resist impact and wear, while the internal components are engineered to tolerate tough drilling conditions. Additionally, Makita incorporates technologies that enhance the lifespan of the tool, such as a dust-proof design that protects the internal workings from debris and dust.

The tool accepts SDS-Plus shank bits, providing versatility when it comes to bit selection. This compatibility allows users to easily switch between various bit sizes and types, further enhancing the HR3000C's adaptability to different tasks.

Another notable aspect is the quick-release chuck mechanism, which allows for swift and easy bit changes without the need for additional tools. This feature not only saves valuable time but also minimizes downtime between tasks.

In summary, the Makita HR3000C rotary hammer is an essential tool for professionals seeking reliable performance, comfort, and durability. With its multiple modes of operation, robust power, and user-centric design, it is well-equipped to handle a variety of demanding applications in construction and renovation. Whether users are drilling, chiseling, or performing heavy-duty demolition work, the HR3000C remains a dependable choice in the Makita lineup.