bit on the concrete and turn the tool on. Once the core bit has cut a shallow groove into the concrete, rotate the change lever to theposition and resume drilling.

1

2

003225

1.Hex wrench

2.Rear cover

003212

NOTE:

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.

•No problem is caused even if the core bit unscrews

slightly during brief use since the core bit rotates in the tightening direction.

To remove the core bit, follow the same removal procedures covered in "When using the center bit".

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

1

2

003231

Lubrication

1

2

1.Screwdriver

2.Brush holder cap

1.Lock nut wrench

2.Crank cap

2

1

3

001146

1.Commutator

2.Insulating tip

3.Carbon brush

003236

This tool requires no hourly or daily lubrication because it has a grease-packed lubrication system. It should be relubricated after every 6 months of operation. Send the complete tool to Makita Authorized or Factory Service Center for this lubrication service. However, if circumstances require that you should lubricate it by yourself, proceed as follows.

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 hex wrench to remove the rear cover.

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

Remove the crank cap using a Makita lock nut wrench 35 (optional accessory). Rest the tool on the table with the bit end pointing upwards. This will allow the old grease to collect inside the crank housing.

7

Page 6 Page 8
Page 7
Image 7
Makita HR5000K instruction manual Maintenance, Replacing carbon brushes, Lubrication
Page 6 Page 8

HR5000K, HR500 specifications

The Makita HR500 and HR5000K are powerful rotary hammers designed for heavy-duty applications in construction and masonry work. Both models cater to professionals seeking robustness, efficiency, and precision in their tasks.

One of the standout features of these rotary hammers is their impressive motor power. The HR500 is equipped with a 10 Amp motor, while the HR5000K boasts a slightly more powerful 11 Amp motor, delivering high performance in drilling and chiseling operations. This ensures that both tools can tackle tough materials like concrete, brick, and stone with ease.

A notable technology incorporated in these models is the Active Vibration Control system. This innovation significantly reduces the amount of vibration experienced during operation, which not only enhances user comfort but also reduces fatigue during long working hours. The result is an improved overall experience, allowing users to maintain higher productivity levels throughout their tasks.

The HR500 and HR5000K feature a two-mode operation: rotary hammer mode and hammer-only mode. This versatility allows users to switch between different applications without the need for additional tools. The mechanical clutch protects the operator and the tool itself by disengaging the drive mechanism if the bit binds, preventing potential damage and ensuring safety.

Both models are designed with durability in mind. The housing is constructed from high-quality materials that can withstand the rigors of daily use on job sites. Additionally, these rotary hammers feature robust gears and components, ensuring a longer lifespan and dependable performance even under heavy loads.

In terms of user-friendliness, the HR500 and HR5000K come with ergonomic designs that promote comfortable handling. The soft grip handle helps absorb shock and provides better control, minimizing the risk of slippage during operation.

Lastly, the HR5000K model includes a depth gauge and a sturdy carrying case, making it an excellent choice for professionals who require precision and portability. The included accessories enhance the value of the tool, facilitating a smoother workflow.

In summary, the Makita HR500 and HR5000K rotary hammers offer exceptional power, innovative technology, and user-friendly features geared towards professional users. They stand out as reliable choices for anyone needing durable tools for demanding drilling and chiseling tasks.
Top Page Image Contents