Makita HP2071J
Makita HP2071J Hammer Drill User Manual
Model: HP2071J
Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Makita HP2071J Hammer Drill. Please read this manual thoroughly before using the tool to ensure proper handling and to prevent injury or damage.
Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Keep this manual for future reference.
- Wear eye protection and hearing protection when operating the drill.
- Ensure the work area is well-lit and clear of obstructions.
- Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Keep children and bystanders away while operating a power tool.
- Secure the workpiece before drilling.
- Always disconnect the drill from the power source before making any adjustments, changing accessories, or storing the tool.
- Use the correct drill bit for the material being drilled.
- Do not force the drill. Let the tool do the work at its intended speed.
Product Overview
The Makita HP2071J is a powerful 1010W hammer drill designed for versatile applications, including drilling in masonry, wood, and steel. It features a 2-speed gearbox, a durable aluminum housing, and a safety coupling.

Figure 1: Front view of the Makita HP2071J Hammer Drill, showing the keyless chuck, side handle, and depth gauge.

Figure 2: Side view of the Makita HP2071J Hammer Drill, highlighting the robust metal gear housing and ergonomic grip.
Setup
Attaching the Side Handle and Depth Gauge
- Loosen the side handle by twisting it counter-clockwise.
- Slide the side handle onto the front of the drill, positioning it for comfortable and secure grip.
- Insert the depth gauge into the hole on the side handle. Adjust the depth gauge to the desired drilling depth.
- Tighten the side handle by twisting it clockwise to secure both the handle and the depth gauge.
Installing/Removing Drill Bits
- Ensure the drill is unplugged from the power source.
- Twist the chuck sleeve counter-clockwise to open the chuck jaws.
- Insert the drill bit fully into the chuck.
- Twist the chuck sleeve clockwise to securely tighten the chuck jaws around the drill bit. Ensure the bit is centered and firmly gripped.
- To remove, twist the chuck sleeve counter-clockwise until the jaws open and pull out the drill bit.
Operating Instructions
Powering On/Off
- To start the drill, press the trigger switch.
- To stop the drill, release the trigger switch.
- For continuous operation, press the trigger switch and then press the lock-on button. To release, press the trigger switch again.
Selecting Operating Mode (Drill/Hammer Drill)
The drill features a mode selector switch located on the top of the tool:
- For standard drilling in wood, metal, or plastic, set the switch to the drill icon (rotary action only).
- For drilling in masonry or concrete, set the switch to the hammer drill icon (rotary and hammering action).
Adjusting Speed and Direction
- Variable Speed: The drilling speed can be adjusted by the pressure applied to the trigger switch.
- 2-Speed Gearbox: Use the gear selector switch (typically on top or side of the gear housing) to select between high speed (for smaller holes, wood, metal) and low speed (for larger holes, masonry, high torque applications).
- Forward/Reverse Rotation: The direction of rotation is controlled by a lever near the trigger. Push it to the left for forward (clockwise) rotation and to the right for reverse (counter-clockwise) rotation.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your drill.
- Cleaning: Regularly clean the ventilation openings to prevent overheating. Use a soft, damp cloth to clean the tool casing. Do not use harsh chemicals or abrasive cleaners.
- Carbon Brushes: The drill features a rotating carbon brush bridge for optimal power efficiency. Carbon brushes are wear items and should be inspected periodically. If worn, they should be replaced by a qualified service technician.
- Chuck Maintenance: Keep the chuck jaws clean and free of debris to ensure proper gripping of drill bits.
- Cord Inspection: Periodically inspect the power cord for any damage. If damaged, have it repaired by a qualified professional.
- Storage: Store the drill in a dry, secure place, out of reach of children.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Drill does not start. | No power supply; faulty power cord; trigger switch issue. | Check power outlet and cord. Ensure trigger is fully pressed. If problem persists, seek professional service. |
| Drill loses power or overheats. | Blocked ventilation openings; excessive load; worn carbon brushes. | Clean ventilation slots. Reduce pressure on the drill. Allow tool to cool. Check LED indicator for temperature protection (red). If persistent, inspect carbon brushes. |
| Drill bit slips in chuck. | Chuck not tightened sufficiently; dirty chuck jaws; worn drill bit shank. | Ensure chuck is tightened firmly. Clean chuck jaws. Use drill bits with clean, undamaged shanks. |
| Excessive vibration. | Bent drill bit; loose chuck; internal damage. | Replace bent drill bit. Re-tighten chuck. If vibration persists, discontinue use and seek professional service. |
Specifications
| Feature | Specification |
|---|---|
| Brand | Makita |
| Model Number | HP2071J |
| Power Consumption | 1010 W |
| Idle Speed (Low/High) | 0 - 1,200 / 0 - 2,900 min⁻¹ |
| Idle Impact Rate (Low/High) | 0 - 24,000 / 0 - 58,000 min⁻¹ |
| Drilling Capacity (Wood) | 40 mm |
| Drilling Capacity (Masonry) | 20 mm |
| Drilling Capacity (Steel) | 16 mm |
| Drill Chuck Span | 1.5 - 13 mm |
| Weight (without cable) | 2.5 kg (5.51 pounds) |
| Dimensions (L x W x H) | 362 x 70 x 220 mm (15.55"L x 11.61"W x 4.33"H) |
| Vibration (Hammer Drilling in Concrete) | 16 m/s² |
| Sound Power Level (LWA) | 110 dB(A) |
| Sound Pressure Level (LpA) | 99 dB(A) |
| Special Feature | Quick Release Chuck, Safety Slip Coupling, LED Indicators |
Warranty and Support
Makita power tools are manufactured under strict quality control and inspection standards. This product is covered by Makita's standard manufacturer warranty, which typically covers defects in materials and workmanship for a specified period from the date of purchase. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Makita website.
For technical support, service, or to locate an authorized service center, please contact Makita customer service or visit their official website. Always use genuine Makita replacement parts to ensure safety and maintain warranty validity.
Contact Information: Refer to your product packaging or the official Makita website for the most current contact details for your region.
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