Makita HP2070 2-Speed Hammer Drill Instruction Manual

makita HP2070 2-Speed Hammer Drill

SPECIFICATIONS

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2014

Intended use

The tool should be connected only to a power supply of the same voltage as indicated on the nameplate, and can only be operated on single-phase AC supply. They are double-insulated and can, therefore, also be used from sockets without earth wire.

Noise

• The typical A-weighted noise level determined accord-ing to EN62841-2-1:
• Sound pressure level (LpA) : 99 dB(A)
• Sound power level (LWA) : 110 dB (A)
• Uncertainty (K) : 3 dB(A)

NOTE: The declared noise emission value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may also be used in a preliminary assessment of exposure.

WARNING:

• Wear ear protection.
• The noise emission during actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
• Be sure to identify safety mea-sures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

Vibration

• The vibration total value (tri-axial vector sum) deter-mined according to EN62841-2-1:
• Work mode: impact drilling into concrete
• Vibration emission (ah,ID) : 16.4 m/s2
• Uncertainty (K) : 1.5 m/s2
• Work mode: drilling into metal
• Vibration emission (ah,D) : 2.5 m/s2
• Uncertainty (K) : 1.5 m/s2

NOTE: The declared vibration total value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration total value(s) may also be used in a preliminary assessment of exposure.

WARNING: The vibration emission during actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
WARNING: Be sure to identify safety mea-sures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

EC Declaration of Conformity

For European countries only
The EC declaration of conformity is included as Annex A to this instruction manual.

SAFETY WARNINGS

General power tool safety warnings 

WARNING: Read all safety warnings, instruc-tions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Hammer drill safety warnings

Safety instructions for all operations

1.  Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss.
2.  Use the auxiliary handle(s). Loss of control can cause personal injury.
3.  Hold the power tool by insulated gripping sur-faces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
4.  Always be sure you have a firm footing. Be sure no one is below when using the tool in high locations.
5.  Hold the tool firmly with both hands.
6.  Keep hands away from rotating parts.
7.  Do not leave the tool running. Operate the tool only when hand-held.
8.  Do not touch the drill bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin.
9.  Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.
10.  If the drill bit cannot be loosened even you open the jaws, use pliers to pull it out. In such a case, pulling out the drill bit by hand may result in injury by its sharp edge.

Safety instructions when using long drill bits

1.  Never operate at higher speed than the maximum speed rating of the drill bit. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
2.  Always start drilling at low speed and with the bit tip in contact with the workpiece. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
3.  Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits can bend causing breakage or loss of control, resulting in personal injury.

WARNING: DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

CAUTION: Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool.

Switch action

WARNING: Before plugging in the tool, always check to see that the switch trigger actu-ates properly and returns to the “OFF” position when released.
Fig.1: 1. Lock button 2. Switch trigger

To start the tool, simply pull the switch trigger. Tool speed is increased by increasing pressure on the switch trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger and then push in the lock button.
To stop the tool from the locked position, pull the switch trigger fully, then release it.
A speed adjusting dial is provided so that maximum tool speed can be limited (variable). Turn the speed adjust-ing dial clockwise for higher speed, and counterclock-wise for lower speed.

Fig.2: 1. Speed adjusting dial 2. Higher 3. Lower

Lighting up the lamps
For model HP2070F, HP2071F

Fig.3: 1. Lamp

CAUTION: Do not look in the light or see the source of light directly.
To turn on the lamp, pull the trigger. Release the trigger to turn it off.

NOTE: Use a dry cloth to wipe the dirt off the lens of the lamp. Be careful not to scratch the lens of lamp, or it may lower the illumination.
NOTE: Do not use thinner or gasoline to clean the lamp. Such solvents may damage it.

Reversing switch action 

CAUTION:

• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool.
• If the switch trigger can not be depressed, check to see that the reversing switch is fully set to the position (A side) or the position (B side).

Fig.4: 1. Reversing switch lever

This tool has a reversing switch to change the direc-tion of rotation. Move the reversing switch lever to the position (A side) for clockwise rotation or to the posi-tion (B side) for counterclockwise rotation.

Speed change

Fig.5: 1. Arrow 2. Speed change knob

Two speed ranges can be preselected with the speed change knob.
To change the speed, turn the speed change knob so that the arrow on the tool body points toward the “I” position on the knob for low speed or “II” position for high speed.
If it is hard to turn the knob, first turn the chuck slightly in either direction and then turn the knob again.

CAUTION: Use the speed change knob only after the tool comes to a complete stop. Changing the tool speed before the tool stops may damage the tool.
CAUTION: Always set the speed change knob to the correct position. If you operate the tool with the speed change knob positioned halfway between the “I” and “II” position, the tool may be damaged.

Selecting the action mode

CAUTION: Always slide the action mode changing lever all the way to your desired mode position. If you operate the tool with the lever posi-tioned halfway between the mode symbols, the tool may be damaged.

 Fig.6: 1. Action mode changing lever
This tool has an action mode changing lever. For rotation with hammering, slide the action mode changing lever to the right ( symbol). For rotation only, slide the action mode changing lever to the left ( symbol).

ASSEMBLY

CAUTION: Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Installing side grip (auxiliary handle)

► Fig.7: 1. Grip base 2. Side grip (auxiliary handle) 3. Teeth 4. Protrusion

Always use the side grip to ensure operating safety. Install the side grip so that the teeth on the grip fit in between the protrusions on the tool barrel. Then tighten the grip by turning clockwise at the desired position. It may be swung 360° so as to be secured at any position.

Installing or removing drill bit

For model HP2070, HP2070F 

Fig.8: 1. Chuck key

To install the drill bit, place it in the drill chuck as far as it will go. Tighten the chuck by hand. Place the chuck key in each of the three holes and tighten clockwise. Be sure to tighten all three chuck holes evenly.
To remove the drill bit, turn the drill chuck key counter-clockwise in just one hole, then loosen the chuck by hand.
After using the chuck key, be sure to return it to the original position.

For model HP2071, HP2071F 

Fig.9: 1. Sleeve 2. Ring

Hold the ring and turn the sleeve counterclockwise to open the chuck jaws. Place the drill bit in the drill chuck as far as it will go. Hold the ring firmly and turn the sleeve clockwise to tighten the chuck.
To remove the drill bit, hold the ring and turn the sleeve counterclockwise.

NOTE: If the keyless drill chuck cannot be loosened because of a drill bit being caught inside the jaws of the chuck, loosen the drill chuck as follows.

► Fig.10: 1. Sleeve 2. Hexagonal nut 3. Wrench 19 4. Retaining ring

1.  Hold the sleeve of the drill chuck firmly with water pump pliers or the like (Note: Do not hold the retaining ring portion.)
2.  Place the wrench 19, adjustable wrench or one of other appropriate wrenches on the hexagonal nut at the front of the drill chuck. Turn the wrench clock-wise as shown in the figure to loosen the drill chuck.

Depth gauge 

Fig.11: 1. Depth gauge

The depth gauge is convenient for drilling holes of uniform depth. Loosen the side grip and insert the depth gauge into the hole on the side grip. Adjust the depth gauge to the desired depth and tighten the side grip firmly.

NOTE: The depth gauge cannot be used at the posi-tion where the depth gauge strikes against the tool body.

OPERATION

Holding tool

CAUTION: Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations.

Fig.12

Hammer drilling operation 

CAUTION: There is tremendous and sudden twisting force exerted on the tool/drill bit at the time of hole break-through, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete. Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during opera-tions. Failure to do so may result in the loss of control of the tool and potentially severe injury.

When drilling in concrete, granite, tile, etc., slide the action mode changing lever to the position of symbol to use “rotation with hammering” action.
Be sure to use a tungsten-carbide tipped drill bit. Position the drill bit at the desired location for the hole, then pull the switch trigger. Do not force the tool. Light pressure gives best results. Keep the tool in position and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the drill bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed.

Blow-out bulb

Optional accessory
► Fig.13: 1. Blow-out bulb

After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Drilling operation
CAUTION:

• Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your drill bit, decrease the tool performance and shorten the service life of the tool.
•  Hold the tool firmly and exert care when the drill bit begins to break through the workpiece. There is a tremendous force exerted on the tool/drill bit at the time of hole break through.
• A stuck drill bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly.
• Always secure workpieces in a vise or similar hold-down device.

When drilling in wood, metal or plastic materials, slide the action mode changing lever to the position of symbol to use “rotation only” action.

Drilling in wood
When drilling in wood, the best results are obtained with wood drills equipped with a guide screw. The guide screw makes drilling easier by pulling the drill bit into the workpiece.

Drilling in metal
To prevent the drill bit from slipping when starting a hole, make an indentation with a center-punch and hammer at the point to be drilled. Place the point of the drill bit in the indentation and start drilling. Use a cutting lubricant when drilling metals. The excep-tions are iron and brass which should be drilled dry.

MAINTENANCE

CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.
NOTICE: Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

Indicator lamp 

► Fig.14: 1. Power-ON indicator lamp (green) 2. Service indicator lamp (red)

The green power-ON indicator lamp lights up when the tool is switched ON. If the indicator lamp is lit but the tool does not start, the carbon brushes may be worn out, or the electric circuit or the motor may be defective. If the indicator lamp does not light up and the tool does not start, the ON/OFF switch or the mains cord may be defective.
The red service indicator lamp lights up when the tool is excessively loaded. Continued operation under such a condition will result in a failure or breakage of the tool. At this time, cool down the tool by running the tool under no load.

Cleaning vent holes 

Fig.15: 1. Vent holes

The tool and its air vents have to be kept clean. Regularly clean the tool’s air vents or whenever the vents start to become obstructed.

Fig.16: 1. Vent holes

To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION: These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regard-ing these accessories, ask your local Makita Service Center.

• Tungsten-carbide tipped drill bit
• Hole saws
• Blow-out bulb
• Safety goggles
• Keyless drill chuck 13
• Chuck key
• Grip assembly
• Depth gauge
• Plastic carrying case

NOTE: Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.