Makita DHP484 Manual

Also See for DHP484:

Instruction manual (436 pages)

Repair manual (26 pages)

Instruction manual (36 pages)

Table of Contents

Contents

1 SPECIFICATIONS
2 FUNCTIONAL DESCRIPTION
3 ASSEMBLY
4 OPERATION
5 MAINTENANCE
6 OPTIONAL ACCESSORIES
7 SAFETY WARNINGS
8 Documents / Resources
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Makita DHP484 Manual

SPECIFICATIONS

Due to our continuing program of research and development, the specifications herein are subject to change without notice.
Specifications and battery cartridge may differ from country to country.
Weight, with battery cartridge, according to EPTA-Procedure 01/2003

Intended use
The tool is intended for impact drilling in brick, brickwork and masonry. It is also suitable for screw driving and drilling without impact in wood, metal, ceramic and plastic.

Noise
The typical A-weighted noise level determined according to EN60745:
Sound pressure level (L_pA ): 88 dB(A)
Sound power level (L_WA ): 99 dB (A)
Uncertainty (K): 3 dB(A)

Wear ear protection.

Vibration
The vibration total value (tri-axial vector sum) determined according to EN60745: Work mode: impact drilling into concrete Vibration emission (a 2 h, ID ): 8.0 m/s Uncertainty (K): 1.5 m/s 2
Work mode: drilling into metal Vibration emission (a ): 2.5 m/s 2 h, D or less Uncertainty (K): 1.5 m/s 2
NOTE: The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration emission value may also be used in a preliminary assessment of exposure.

The vibration emission during actual use of the power tool can differ from the declared emission value depending on the ways in which the tool is used.

Be sure to identify safety measures 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).

FUNCTIONAL DESCRIPTION

Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool.

Installing or removing battery cartridge

Always switch off the tool before installing or removing of the battery cartridge.

Hold the tool and the battery cartridge firmly when installing or removing battery cartridge. Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hands and result in damage to the tool and battery cartridge and a personal injury.
► Fig.1:

Red indicator
Button
Battery cartridge

To remove the battery cartridge, slide it from the tool while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Insert it all the way until it locks in place with a little click. If you can see the red indicator on the upper side of the button, it is not locked completely.

Always install the battery cartridge fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

Do not install the battery cartridge forcibly. If the cartridge does not slide in easily, it is not being inserted correctly.

Indicating the remaining battery capacity
Only for battery cartridges with "B" at the end of the model number
► Fig.2:

Indicator lamps
Check button

Press the check button on the battery cartridge to indicate the remaining battery capacity. The indicator lamps light up for few seconds.

Indicator lamps			Remaining capacity
Lighted	Off	Blinking
			75% to 100%
			50% to 75%
			25% to 50%
			0% to 25%

Indicator lamps			Remaining capacity
Lighted	Off	Blinking
			Charge the battery.
			The battery may have malfunctioned.

NOTE: Depending on the conditions of use and the ambient temperature, the indication may differ slightly from the actual capacity.

Tool / battery protection system
The tool is equipped with a tool/battery protection system. This system automatically cuts off power to the motor to extend tool and battery life. The tool will automatically stop during operation if the tool or battery is placed under one of the following conditions:

Overload protection
When the tool/battery is operated in a manner that causes it to draw an abnormally high current, the tool automatically stops without any indication. In this situation, turn the tool off and stop the application that caused the tool to become overloaded. Then turn the tool on to restart.

Overheat protection
When the tool/battery is overheated, the tool stops automatically. In this situation, let the tool/battery cool before turning the tool on again.

Overdischarge protection
When the battery capacity is not enough, the tool stops automatically. In this case, remove the battery from the tool and charge the battery.
NOTE: Overheat protection (for battery) will work only with batteries with star marking.
► Fig.3:

Star marking

Switch action
► Fig.4:

Switch trigger

Before installing the battery cartridge into the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released.
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.
NOTE: The tool automatically stops if you keep pulling the switch trigger for about 6 minutes.

Lighting up the front lamp
► Fig.5:

Lamp

Do not look in the light or see the source of light directly.
Pull the switch trigger to light up the lamp. The lamp keeps on lighting while the switch trigger is being pulled. The lamp goes out approximately 10 seconds after releasing the switch trigger.
NOTE: When the tool is overheated, the tool stops automatically and the lamp starts flashing. In this case, release the switch trigger. The lamp turns off in one minute.
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.

Reversing switch action
► Fig.6:

Reversing switch lever

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.

When not operating the tool, always set the reversing switch lever to the neutral position.
This tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the A side for clockwise rotation or from the B side for counterclockwise rotation. When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled.

Speed change
► Fig.7:

Speed change lever

Always set the speed change lever fully to the correct position. If you operate the tool with the speed change lever positioned halfway between the "1" side and "2" side, the tool may be damaged.

Do not use the speed change lever while the tool is running. The tool may be damaged.

Displayed Number	Speed	Torque	Applicable operation
1	Low	High	Heavy loading operation
2	High	Low	Light loading operation

To change the speed, switch off the tool first. Push the speed change lever to display "2" for high speed or "1" for low speed but high torque. Be sure that the speed change lever is set to the correct position before operation. If the tool speed is coming down extremely during the operation with display "2", push the lever to display "1" and restart the operation.

Selecting the action mode

Always set the ring correctly to your desired mode mark. If you operate the tool with the ring positioned halfway between the mode marks, the tool may be damaged.

When you change the position from " " to other modes, it may be a little difficulty to slide the action mode changing ring. In this case, switch on and run the tool for a second at the " " position, then stop the tool and slide the ring to your desired position.
► Fig.8:
Selecting the action mode

Action mode changing ring
Adjusting ring
Graduation
Arrow

This tool has three action modes.

Drilling mode (rotation only)
Hammer drilling mode (rotation with hammering)
Screwdriving mode (rotation with clutch)

Select one mode suitable for your work. Turn the action mode changing ring and align the mark that you selected with the arrow on the tool body.

Adjusting the fastening torque
► Fig.9:

Action mode changing ring
Adjusting ring
Graduation
Arrow

The fastening torque can be adjusted in 21 levels by turning the adjusting ring. Align the graduations with the arrow on the tool body. You can get the minimum fastening torque at 1 and maximum torque at 21.

Before actual operation, drive a trial screw into your material or a piece of duplicate material to determine which torque level is required for a particular application. The following shows the rough guide of the relationship between the screw size and graduation.

ASSEMBLY

Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool.

Installing or removing driver bit/ drill bit
Optional accessory
► Fig.10:

Sleeve
Close
Open

Turn the sleeve counterclockwise to open the chuck jaws. Place the driver bit/drill bit in the chuck as far as it will go. Turn the sleeve clockwise to tighten the chuck. To remove the driver bit/drill bit, turn the sleeve counterclockwise.

Installing hook
► Fig.11:

Groove
Hook
Screw

The hook is convenient for temporarily hanging the tool. This can be installed on either side of the tool. To install the hook, insert it into a groove in the tool housing on either side and then secure it with a screw. To remove, loosen the screw and then take it out.

Installing driver bit holder
Optional accessory
► Fig.12:

Driver bit holder
Driver bit

Fit the driver bit holder into the protrusion at the tool foot on either right or left side and secure it with a screw. When not using the driver bit, keep it in the driver bit holders. Driver bits 45 mm-long can be kept there.

OPERATION

Always insert the battery cartridge all the way until it locks in place. If you can see the red indicator on the upper side of the button, it is not locked completely. Insert it fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

When the speed comes down extremely, reduce the load or stop the tool to avoid the tool damage.
Hold the tool firmly with one hand on the grip and the other hand on the bottom of the battery cartridge to control the twisting action.
► Fig.13

Screwdriving operation

Adjust the adjusting ring to the proper torque level for your work.

Make sure that the driver bit is inserted straight in the screw head, or the screw and/or driver bit may be damaged.
First, turn the action mode changing ring so that the arrow on the tool body points to the marking. Place the point of the driver bit in the screw head and apply pressure to the tool. Start the tool slowly and then increase the speed gradually. Release the switch trigger as soon as the clutch cuts in.
NOTE: When driving wood screw, pre-drill a pilot hole 2/3 the diameter of the screw. It makes driving easier and prevents splitting of the workpiece.

Hammer drilling operation

There is a tremendous and sudden twisting force exerted on the tool/drill bit at the time of hole breakthrough, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete.
First, turn the action mode changing ring so that the arrow on the tool body points to the marking. The adjusting ring can be aligned in any torque levels for this operation. 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.14:

Blow-out bulb

After drilling the hole, use the blow-out bulb to clean the dust out of the hole.

Drilling operation
First, turn the action mode changing ring so that the arrow points to the marking. Then proceed as follows.

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 exceptions are iron and brass which should be drilled dry.

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.

If the tool is operated continuously until the battery cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery.

MAINTENANCE

Always be sure that the tool is switched off and the battery cartridge is removed before attempting to perform inspection or maintenance.
NOTICE: Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.
To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

OPTIONAL ACCESSORIES

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 regarding these accessories, ask your local Makita Service Center.

Drill bits
Driver bits
Tungsten-carbide tipped drill bit
Blow-out bulb
Driver bit holder
Hook
Makita genuine battery and charger

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

SAFETY WARNINGS

General power tool safety warnings

Read all safety warnings and all instructions. Failure to follow the warnings and instructions 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.

Cordless hammer driver drill safety warnings

Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss.
Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.
Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
Hold power tool by insulated gripping surfaces, when performing an operation where the fastener may contact hidden wiring. Fasteners contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
Always be sure you have a firm footing. Be sure no one is below when using the tool in high locations.
Hold the tool firmly.
Keep hands away from rotating parts.
Do not leave the tool running. Operate the tool only when hand-held.
Do not touch the bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin.
Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.

SAVE THESE INSTRUCTIONS.

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.

Important safety instructions for battery cartridge

Before using battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.
Do not disassemble battery cartridge.
If operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, possible burns and even an explosion.

If electrolyte gets into your eyes, rinse them out with clear water and seek medical attention right away. It may result in loss of your eyesight.
Do not short the battery cartridge:
1. Do not touch the terminals with any conductive material.
2. Avoid storing battery cartridge in a container with other metal objects such as nails, coins, etc.
3. Do not expose battery cartridge to water or rain. A battery short can cause a large current flow, overheating, possible burns and even a breakdown.
Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50°C (122°F).
Do not incinerate the battery cartridge even if it is severely damaged or is completely worn out. The battery cartridge can explode in a fire.
Be careful not to drop or strike battery.
Do not use a damaged battery.
The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. For commercial transports e.g. by third parties, forwarding agents, special requirement on packaging and labeling must be observed. For preparation of the item being shipped, consulting an expert for hazardous material is required. Please also observe possibly more detailed national regulations. Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.
Follow your local regulations relating to disposal of battery.

SAVE THESE INSTRUCTIONS.

Only use genuine Makita batteries. Use of non-genuine Makita batteries, or batteries that have been altered, may result in the battery bursting causing fires, personal injury and damage. It will also void the Makita warranty for the Makita tool and charger.

Tips for maintaining maximum battery life

Charge the battery cartridge before completely discharged. Always stop tool operation and charge the battery cartridge when you notice less tool power.
Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.
Charge the battery cartridge with room temperature at 10°C - 40°C (50°F - 104°F). Let a hot battery cartridge cool down before charging it.
Charge the battery cartridge if you do not use it for a long period (more than six months).