WH18DFX - Drill HiKOKI - Free user manual and instructions

USER MANUAL WH18DFX HiKOKI

Technical line drawing of a handheld power tool with no visible text or symbols

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL

WARNING

IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily injury! This manual contains important information about product safety. Please read and understand this manual BEFORE operating the power tool. Please keep this manual available for other users and owners before they use the power tool. This manual should be stored in safe place.

INSTRUCTIONS DE SECURITE ET MODE D'EMPLOI

AVERTISSEMENT

IMPORTANT SAFETY INSTRUCTIONS

Read all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool.

Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures.

Basic safety precautions are outlined in the "SAFETY" section of this Instruction Manual and in the sections which contain the operation and maintenance instructions.

Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the power tool and in this Instruction Manual.

NEVER use this power tool in a manner that has not been specifically recommended by metabo HPT.

MEANINGS OF SIGNAL WORDS

WARNING indicates a potentially hazardous situations which, if ignored, could result in death or serious injury.

CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may cause machine damage.

NOTE emphasizes essential information.

SAFETY

GENERAL POWER TOOL SAFETY WARNINGS

WARNING

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.

1) Work area safety

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents

b) Do not operate power tools in explosive atmospheres, such as in the presence of fl ammable liquids, gases or dust.

Power tools create sparks which may ignite the dust or fumes.

c) Keep children and bystanders away while operating a power tool.

Distractions can cause you to lose control.

2) Electrical safety

a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators.

There is an increased risk of electric shock if your body is earthed or grounded.

c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.

e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

3) Personal safety

a) Stay alert, watch what you are doing and use common sense when operating a power tool.

Do not use a power tool while you are tiredor under the influence of drugs, alcohol or medication.

A moment of inattention while operating power tools may result in serious personal injury.

b) Use personal protective equipment. Always wear eye protection.

Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

c) Prevent unintentional starting. Ensure the switch is in the off -position before connecting to power source and/or battery pack, picking up or carrying the tool.

Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.

d) Remove any adjusting key or wrench before turning the power tool on.

A wrench or a key left attached to a rotatin gpart of the power tool may result in personal injury.

e) Do not overreach. Keep proper footing and balance at all times.

This enables better control of the power tool in unexpected situations.

f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts.

Loose clothes, jewellery or long hair can be caught in moving parts.

g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used.

Use of dust collection can reduce dust-related hazards.

4) Power tool use and care

a) Do not force the power tool. Use the correct power tool for your application.

The correct power tool will do the job better and safer at the rate for which it was designed.

b) Do not use the power tool if the switch does not turn it on and off.

Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

c) Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.

Such preventive safety measures reduce the risk of starting the power tool accidentally.

d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.

Power tools are dangerous in the hands of untrained users.

e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool's operation.

If damaged, have the power tool repaired before use.

Many accidents are caused by poorly maintained power tools.

f) Keep fastening tools sharp and clean.

Properly maintained fastening tools with sharp fastening edges are less likely to bind and are easier to control.

g) Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed.

Use of the power tool for operations different from those intended could result in a hazardous situation.

5) Battery tool use and care

a) Recharge only with the charger specified by the manufacturer.

A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.

b) Use power tools only with specifically designated battery packs.

Use of any other battery packs may create a risk of injury and fire.

c) When battery pack is not in use, keep it away from other metal objects like paper clips, coins, keys, nails, screws, or other small metal objects, that can make a connection from one terminal to another.

Shorting the battery terminals together may cause burns or a fire.

d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, fl ush with water. If liquid contacts eyes, additionally seek medical help.

Liquid ejected from the battery may cause irritation or burns.

6) Service

a) Have your power tool serviced by a qualified repair person using only identical replacement parts.

This will ensure that the safety of the power tool is maintained.

- WARNING -

To reduce the risk of injury, use instruction manual.

SPECIFIC SAFETY RULES AND SYMBOLS

1. 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.

1. ALWAYS wear ear protectors when using the tool for extended periods.

Prolonged exposure to high intensity noise can cause hearing loss.

1. NEVER place hands or other body parts near the drill bit or chuck during operation. Hold the drill by its handle only.
2. Because the cordless impact driver operates by battery power, be aware of the fact that it can begin to operate at any time.
3. When working at elevated locations, clear the area of all other people and be aware of conditions below you.
4. NEVER touch moving parts.

NEVER place your hands, fingers or other body parts near the tool's moving parts.

1. NEVER operate without all guards in place.

NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the tool.

1. Use right tool.

Don't force small tool or attachment to do the job of a heavy-duty tool.

Don't use tool for purpose not intended —for example— don't use circular saw for cutting tree limbs or logs.

1. NEVER use a power tool for applications other than those specified.

NEVER use a power tool for applications other than those specified in the Instruction Manual.

1. Handle tool correctly.

Operate the tool according to the instructions provided herein. Do not drop or throw the tool.

NEVER allow the tool to be operated by children, individuals unfamiliar with its operation or unauthorized personnel.

1. Keep all screws, bolts and covers tightly in place.

Keep all screws, bolts, and plates tightly mounted.

Check their condition periodically.

1. Do not use power tools if the plastic housing or handle is cracked.

Cracks in the tool's housing or handle can lead to electric shock. Such tools should not be used until repaired.

1. Blades and accessories must be securely mounted to the tool.

Prevent potential injuries to yourself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.

1. NEVER use a tool which is defective or operating abnormally.

If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a metabo HPT authorized service center.

1. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.

1. Do not wipe plastic parts with solvent.

Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may damage and crack plastic parts. Do not wipe them with such solvents. Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly.

1. ALWAYS wear eye protection that meets the requirement of the latest revision of ANSI Standard Z87.1.

1. Do not use the product if the tool or the battery terminals (battery mount) are deformed. Installing the battery could cause a short circuit that could result in smoke emission or ignition.
2. Keep the tool's terminals (battery mount) free of swarf and dust.
   Prior to use, make sure that swarf and dust have not collected in the area of the terminals.
   During use, try to avoid swarf or dust on the tool from falling on the battery.
   When suspending operation or after use, do not leave the tool in an area where it may be exposed to falling swarf or dust.

Doing so could cause a short circuit that could result in smoke emission or ignition.

1. Definitions for symbols used on this tool

V.....volts

=......direct current

No......no load speed

---/min..... revolutions or reciprocation per minute

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE CORDLESS IMPACT DRIVER

WARNING

Death or serious bodily injury could result from improper or unsafe use of the cordless impact driver. To avoid these risks, follow these basic safety instructions:

1. NEVER use this impact driver handle for any application other than those in this manual.
2. NEVER place hands or other body parts near the drill bit or chuck during operation.
   Hold the impact driver by its handle only.
3. When working in high places, always make sure that there is no one below before starting to work.
4. ALWAYS wear eye and ear protection when you work.
5. ALWAYS install the driver bit securely. A loose bit is dangerous because it can come loose while you are working.
6. ALWAYS use the driver bit that matches the screw size.
7. ALWAYS have the screw you are screwing in and this impact driver in a straight line. Working with this impact driver at an angle to the screw can damage the screw head and will not give the prescribed tightening torque.

IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CHARGER

WARNING

Death or serious bodily injury could result from improper or unsafe use of battery chargers. To avoid these risks, follow these basic safety instructions:

READ ALL INSTRUCTIONS

1. This manual contains important safety and operating instructions for battery charger Model UC18YKSL.
2. Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.
3. To reduce risk of injury, rechargeable battery models of the BSL18 series. Other models of batteries may burst causing personal injury and damage.
4. Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fire, electric shock, or injury to persons.
5. To reduce risk of damage to electric plug and cord, pull by plug when disconnecting battery charger.
6. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.
7. An extension cord should not be used unless absolutely necessary. Use of improper extension cord could result in a risk of fire and electric shock. If extension cord must be used make sure:
   a. That blades of extension cord are the same number, size, and shape as those of plug on battery charger:
   b. That extension cord is properly wired and in good electrical condition; and
   c. That wire size is large enough for AC ampere rating of battery charger as specified in Table 1.

Table 1
RECOMMENDED MINIMUM AWG SIZE FOR
EXTENSION CORDS FOR BATTERY CHARGERS

AC input rating Ampere*		AWG size of cord
Equal to or greater than	but less than	Length of cord, feet (meter)
		25 (7.5)	50 (15)	100 (30)	150 (45)
0	2	18	18	18	16
2	3	18	18	16	14
3	4	18	18	16	14

* If the input rating of a battery charger is given in watts rather than in amperes, the corresponding ampere rating is to be determined by dividing the wattage rating by the voltage rating—for example:

$$ \frac {1 , 2 5 0 \text { watts }}{1 2 5 \text { volts }} = 1 0 \text { amperes } $$

1. Do not operate battery charger with damaged cord or plug-replace them immediately.
2. Do not operate battery charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman.
3. Do not disassemble battery charger; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.
4. To reduce risk of electric shock, unplug charger from receptacle before attempting any maintenance or cleaning. Removing the battery will not reduce this risk.

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE BATTERY AND BATTERY CHARGER

You must charge the battery before you can use the power tool. Before using the model UC18YKSL battery charger, be sure to read all instructions and cautionary statements on it, the battery and in this manual.

CAUTION

USE ONLY metabo HPT BATTERY MODELS OF THE BSL18 SERIES. OTHER MODELS OF BATTERIES MAY BURST AND CAUSE INJURY!

Follow these instructions to avoid the risk of injury:

WARNING: Improper use of the battery or battery charger can lead to serious injury. To avoid these injuries:

1. NEVER disassemble the battery.
2. NEVER incinerate the battery, even if it is damaged or is completely worn out. The battery can explode in a fire.
3. NEVER short-circuit the battery.
4. NEVER insert any objects into the battery charger's air vents. Electric shock or damage to the battery charger may result.
5. NEVER charge outdoors. Keep the battery away from direct sunlight and use only where there is low humidity and good ventilation.
6. NEVER charge when the temperature is below 32^ F ( 0^ C) or above 104^ F ( 40^ C). Charging the battery at temperatures outside the range of 32^ F– 104^ F ( 0^ C– 40^ C) may prevent proper charging and reduce battery life.
7. NEVER connect two battery chargers together.
8. NEVER insert foreign objects into the hole for the battery or the battery charger.
9. NEVER use a booster transformer when charging.

10. NEVER use an engine generator or DC power to charge.

11. NEVER store the battery or battery charger in places where the temperature may reach or exceed 104^ F ( 40^ C) such as inside metal box or car.

12. NEVER expose the battery or battery charger to rain or wet conditions.
13. ALWAYS operate charger on standard household electrical power (120 volts). Using the charger on any other voltage may overheat and damage the charger.
14. ALWAYS wait at least 15 minutes between charges to avoid over rheating the charger.
15. ALWAYS disconnect the power cord from its receptacle when the charger is not in use.

CAUTION ON LITHIUM-ION BATTERY

To extend the lifetime, the lithium-ion battery equips with the protection function to stop the output.

In the cases of 1 to 3 described below, when using this product, even if you are pulling the switch, the motor may stop. This is not the trouble but the result of protection function.

1. When the battery power remaining runs out, the motor stops. In such case, charge it up immediately.
2. If the tool is overloaded, the motor may stop. In this case, release the switch of tool and eliminate causes of overloading. After that, you can use it again.
3. If the battery is overheated under overload work, the battery power may stop. In this case, stop using the battery and let the battery cool. After that, you can use it again.

Furthermore, please heed the following warning and caution.

WARNING

In order to prevent any battery leakage, heat generation, smoke emission, explosion and ignition beforehand, please be sure to heed the following precautions.

1. Make sure that swarf and dust do not collect on the battery.
   During work make sure that swarf and dust do not fall on the battery.
   ○ Make sure that any swarf and dust falling on the power tool during work do not collect on the battery.
   ○ Do not store an unused battery in a location exposed to swarf and dust.
   Before storing a battery, remove any swarf and dust that may adhere to it and do not store it together with metal parts (screws, nails, etc.).

2. Do not pierce battery with a sharp object such as a nail, strike with a hammer, step on, throw or subject the battery to severe physical shock.

3. Do not use an apparently damaged or deformed battery.

4. Do not use the battery in reverse polarity.

5. Do not connect directly to an electrical outlets or car cigarette lighter sockets.

6. Do not use the battery for a purpose other than those specified.

7. If the battery charging fails to complete even when a specified recharging time has elapsed, immediately stop further recharging.
8. Do not put or subject the battery to high temperatures or high pressure such as into a microwave oven, dryer, or high pressure container.
9. Keep away from fire immediately when leakage or foul odor are detected.
10. Do not use in a location where strong static electricity generates.
11. If there is battery leakage, foul odor, heat generated, discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately remove it from the equipment or battery charger, and stop use.
12. Do not immerse the battery or allow any fluids to flow inside. Conductive liquid ingress, such as water, can cause damage resulting in fire or explosion. Store your battery in a cool, dry place, away from combustible and flammable items. Corrosive gas atmospheres must be avoided.

CAUTION

1. If liquid leaking from the battery gets into your eyes, do not rub your eyes and wash them well with fresh clean water such as tap water and contact a doctor immediately.
   If left untreated, the liquid may cause eye-problems.

2. If liquid leaks onto your skin or clothes, wash well with clean water such as tap water immediately.

There is a possibility that this can cause skin irritation.

1. If you find rust, foul odor, overheating, discolor, deformation, and/or other irregularities when using the battery for the first time, do not use and return it to your supplier or vendor.

WARNING

If an electrically conductive foreign object enters the terminals of the lithium ion battery, a short-circuit may occur resulting in the risk of fire. Please observe the following matters when storing the battery.

Do not place electrically conductive cuttings, nails, steel wire, copper wire or other wire in the storage case.
Either install the battery in the power tool or store by securely pressing into the battery cover until the ventilation holes are concealed to prevent short-circuits (See Fig. 3).

REGARDING LITHIUM-ION BATTERY TRANSPORTATION

When transporting a lithium-ion battery, please observe the following precautions.

WARNING

Notify the transporting company that a package contains a lithium-ion battery, inform the company of its power output and follow the instructions of the transportation company when arranging transport.

- Lithium-ion batteries that exceed a power output of 100 Wh are considered to be in the freight classification of Dangerous Goods and will require special application procedures.

- For transportation abroad, you must comply with international law and the rules and regulations of the destination country.

Power Output Wh 2 to 3 digit number

Fig. 1

SAVE THESE INSTRUCTIONS

AND

MAKE THEM AVAILABLE TO OTHER USERS

AND

OWNERS OF THIS TOOL!

FUNCTIONAL DESCRIPTION

NOTE

The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool.

NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual.

Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool.

NAME OF PARTS

1. Cordless Impact Driver (WH18DFX)

Housing Pushing button Trigger switch Handle LED Light Battery

Fig. 2

2. Battery 3. Battery Charger

Ventilation holes Terminals Battery cover Latch Fig. 3

Pilot lamp Nameplate Guide rail Fig. 4

SPECIFICATIONS

1. Cordless Impact Driver

Model WH18DFX
Motor DC motor
No-load speed 0–2,400 /min
Capacity	Small screw 5/32" (M4)–5/16" (M8)
	Ordinary bolt 1/4" (M6)–9/16" (M14)
	High tension bolt 1/4" (M6)–15/32" (M12)
Tightening torque		Maximum 1,330 in-lbs {150 N·m 1,530 kgf·cm} Tightening is 9/16" (M14) high tension bolt, when fully charged at 68°F (20°C) temp. Tightening time: 3 sec.
Bit shank size 1/4" (6.35 mm) Hex.
Battery Type	Model BSL1820M
	Lithium - ion battery
	Voltage DC 18 V
Weight		3.1 lbs. (1.4 kg)

1. Battery Charger (UC18YKSL)

Input power source		Single phase: AC 120 V 60 Hz
Charging time(At a temperature of 68°F (20°C))		BSL1820M: Approx. 60 min
Charger	Charging voltage	DC 14.4 V–18 V
	Charging current	DC 2.0 A
Weight		0.8 lbs. (0.35 kg)

NOTE: The charging time may vary according to temperature and power source voltage.

ASSEMBLY AND OPERATION

APPLICATIONS

Driving and removing of machine screws, wood screws, tapping screws, etc.

REMOVAL AND INSTALLATION METHOD OF BATTERY

1. Battery removal

Hold the handle tightly and push the battery latch to remove the battery (See Fig. 5).

CAUTION

Never short-circuit the battery.

2. Battery installation

Insert the battery while observing its polarities (see Fig. 5).

Pull out Insert Handle Latch Push Battery

Fig. 5

CHARGING METHOD

NOTE

Before plugging into the receptacle, make sure the following points.

○ The power source voltage is stated on the nameplate.
○ The cord is not damaged.

WARNING

Do not charge at voltage higher than indicated on the nameplate.

If charged at voltage higher than indicated on the nameplate, the charger will burn out.

1. Connect the charger's power cord to a receptacle. When the power cord is connected, the charger's pilot lamp will blink in red. (At 1-second intervals)

WARNING

Do not use the electrical cord if damaged. Have immediately.

2. Insert the battery into the charger.

Firmly insert the battery into the charger as shown in Fig. 6.

Battery Pilot lamp

Fig. 6

3. Charging

When the battery is connected to the battery charger, charging will commence and the pilot lamp will light in red. (See Table 2)

NOTE

If the pilot lamp flikers in red, pull out the plug from the receptacle and check if the battery is properly mounted.

When the battery is fully charged, the pilot lamp will blink in red slowly. (At 1-second intervals) (See Table 2)

(1) Pilot lamp indication

The indications of the pilot lamp will be as shown in Table 2, according to the condition of the charger or the rechargeable battery.

Table 2

Indications of the pilot lamp
Pilot lamp(red)	Before charging	Blinks	Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds)	Plugged into power source
	While charging	Lights	Lights continuously
	Charging complete	Blinks	Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds)
	Overheat standby	Blinks	Lights for 1 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds)	Battery overheated. Unable to charge.(Charging will commence when battery cools)
	Charging impossible	Flickers	Lights for 0.1 seconds. Does not light for 0.1 seconds. (off for 0.1 seconds)	Malfunction in the battery or the charger

(2) Regarding the temperature of the rechargeable battery.

The temperatures for rechargeable batteries are as shown in the Table 3, and batteries that have become hot should be cooled for a while before being recharged.

Table 3 Recharging ranges of batteries

Rechargeable battery	Temperatures at which the battery can be recharged
BSL1820M	32°F–122°F(0°C–50°C)

(3) Regarding recharging time (At 68°F (20°C))

Table 4 Charging time

Battery\Charger	UC18YKSL
BSL1820M Approx. 60 min

NOTE

The charging time may vary according to temperature and power source voltage.

1. Disconnect battery charger from the receptacle.

CAUTION

Do not pull the plug out of the receptacle by pulling on the cord.

Make sure to grasp the plug when removing from receptacle to avoid damaging cord.

1. Remove the battery from the battery charger.

Supporting the battery charger with hand, pull out the battery from the battery charger.

NOTE

Be sure to pull out the battery from the battery charger after use, and then keep it.

Regarding electric discharge in case of new batteries, etc.

As the internal chemical substance of new batteries and batteries that have not been used for an extended period is not activated, the electric discharge might be low when using them the first and second time. This is a temporary phenomenon, and normal time required for recharging will be restored by recharging the batteries 2–3 times.

How to make the batteries perform longer.

(1) Recharge the batteries before they become completely exhausted.

When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter.

(2) Avoid recharging at high temperatures.

A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use, its internal chemical substance will deteriorate, and the battery life will be shortened. Leave the battery and recharge it after it has cooled for a while.

CAUTION

• When the battery charger has been continuously used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 rest until the next charging.
• If the battery is charged while it is heated because it has been left for a long time in a location subject to direct sunlight or because the battery has just been used, the pilot lamp of the charger lights for 1 second, does not light for 0.5 seconds (off for 0.5 seconds). In such a case, first let the battery cool, then start charging.
• When the pilot lamp fl ickers (at 0.2-second intervals), check for and take out any foreign objects in the charger's battery connector. If there are no foreign objects, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center.

BEFORE USE

Check the work area to make sure that it is clear of debris and clutter.

Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate.

OPERATION

1. Installing the bit

Always follow the following procedure to install driver bit. (Fig. 7)

Guide sleeve Movement Driver bit Hexagonal hole in the socket

Fig. 7

(1) Pull the guide sleeve forward.
(2) Insert the bit into the hexagonal hole in the socket.
(3) Release the guide sleeve and it returns to its original position.

CAUTION

If the guide sleeve does not return to its original position, then the bit is not installed properly.

1. Removing the bit
   Please do the opposite point on the method of installing bit.
2. Confirm that the battery is mounted correctly

4. Check the rotational direction.

The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the pushing button.

The L-side of the pushing button is pushed to turn the bit counterclockwise (See Fig. 8).

(The (L) and (R) marks are provided on the body.)

(R) marks (R) marks (L) Trigger switch Pushing button

Fig. 8

CAUTION

The pushing button can not be switched while the power tool is turning. To switch the pushing button, stop the power tool, then set the pushing button.

5. Switch operation

○ When the trigger switch is depressed, the tool rotates. When the trigger is released, the tool stops.
☐ The rotational speed can be controlled by varying the amount that the trigger switch is pulled. Speed is low when the trigger switch is pulled slightly and increases as the trigger switch is pulled more.
○ When releasing the trigger of the switch, the brake will be applied for immediate stopping.

NOTE

A buzzing noise is produced when the motor is about to rotate. This is only a noise, not a machine failure.

6. Tightening and loosening screws

Install the bit that matches the screw, line up the bit in the grooves of the head of the screw, then tighten it. Push the impact driver just enough to keep the bit fitting the head of the screw.

CAUTION

• Applying the impact driver for too long tightens the screw too much and can break it.
  ● Tightening a screw with the impact driver at an angle to that screw can damage the head of the screw and the proper force will not be transmitted to the screw.
  Tighten with this impact driver lined up straight with the screw.

7. Tightening and loosening bolts

A hex. socket matching the bolt or nut must first be selected. Then mount the socket on the anvil, and grip the nut to be tightened with the hex. socket. Holding the wrench in line with the bolt, press the power switch to impact the nut for several seconds.

If the nut is only loosely fitted to the bolt, the bolt may turn with the nut, therefore mistaking proper tightening. In this case, stop impact on the nut and hold the bolt head with a wrench before restarting impact, or manually tighten the bolt and nut to prevent them slipping.

8. Remaining battery indicator

You can check the battery's remaining capacity by pressing the remaining battery indicator switch to light the indicator lamp. (Fig. 9, Table 5)

The indicator will shut off approximately 3 seconds after the remaining battery indicator switch is pressed.

It is best to use the remaining battery indicator as a guide since there are slight differences such as ambient temperature and the condition of the battery.

Also, the remaining battery indicator may vary from those equipped to a tool or charger.

Remaining battery indicator lamp
Remaining battery indicator switch

Display panel

Fig. 9

Table 5

State of lamp Battery Remaining Power
	Lights;The battery remaining power is over 75%.
	Lights;The battery remaining power is 50%-75%.
	Lights;The battery remaining power is 25%-50%.
	Lights;The battery remaining power is less than 25%.

	Blinks;The battery remaining power is nearly empty. Recharge the battery soonest possible
	Blinks;Output suspended due to high temperature. Remove the battery from the tool and allow it to fully cool down.
	Blinks;Output suspended due to failure or malfunction. The problem may be the battery so please contact your dealer.

As the remaining battery indicator shows somewhat differently depending on ambient temperature and battery characteristics, read it as a reference.

NOTE

Do not give a strong shock to the switch panel or break it. It may lead to a trouble.

9. Using the LED light

Pull the trigger switch to light up the LED light. The LED light keeps on lighting while the trigger switch is being pulled. The LED light goes out after releasing the trigger switch. (Fig. 10)

LED light Trigger switch

Fig. 10

CAUTION

Do not look directly into the LED light. Such actions could result in eye injury.

10. Using the hook (sold separately)

The hook is used to hang up the power tool to your waist belt while working.

CAUTION

- When using the hook, hang up the power tool firmly not to drop accidentally. If the power tool is dropped, it may lead to an accident.

• When carrying the power tool with your waist belt, do not fit any bit to the tip of power tool. If the sharp bit such as drill is fitted to the power tool when carrying it with hooked to your waist belt, you will be injured.
  ● Install securely the hook. Unless the hook is securely installed, it may cause an injury while using.

(1) Placing the hook and tightening the screws. Install securely the hook in the groove of power tool and tighten the screws to fix the hook firmly. (Fig. 11)

Groove Hook Screw

Fig. 11

(2) Removing the hook. Remove the screws fixing the hook with Philips screw driver. (Fig. 12)

Hook Screw

Fig. 12

OPERATIONAL CAUTIONS

1. Resting the unit after continuous work After use for continuous bolt-tightening work, rest the unit for 15 minutes or so when replacing the battery. The temperature of the motor, switch, etc. will rise if the work is started again immediately after battery replacement, eventually resulting in burnout.

⚠️ CAUTION Do not touch the metal parts, as it gets very hot during continuous work.

2h 6auliend on ase of the speed control switch

This switch has a built-in, electronic circuit which steplessly varies the rotation speed. Consequently, when the trigger switch is pulled only slightly (low speed rotation) and the motor is stopped while continuously driving in screws, the components of the electronic circuit parts may overheat and be damaged.

1. Use a tightening time suitable for the screw

The appropriate torque for a screw differs according to the material and size of the screw, and the material being screwed etc., so please use a tightening time suitable for the screw. In particular, if a long tightening time is used in the case of screws smaller than 5/16" (8 mm), there is a danger of the screw breaking, so please confirm the tightening time and the tightening torque beforehand.

1. Work at a tightening torque suitable for the bolt under impact

The optimum tightening torque for nuts or bolts differs with material and size of the nuts or bolts.

An excessively large tightening torque for a small bolt may stretch or break the bolt. The tightening torque increases in proportionate to the operation time. Use the correct operating time for the bolt.

1. Holding the tool

Hold the tool firmly with both hands. In this case hold the tool in line with the screw or bolt.

It is not necessary to push the tool very hard. Hold the tool with a force just sufficient to counteract the impact force.

1. Confir rm the tightening torque

The following factors contribute to a reduction of the tightening torque. So confi rm the actual tightening torque needed by screwing up some bolts before the job with a hand torque wrench. Factors affecting the tightening torque are as follows.

(1) Voltage When the discharge margin is reached, voltage decreases and tightening torque is lowered.

(2) Operating time

The tightening torque increases when the operating time increases. But the tightening torque does not increase above a certain value even if the tool is driven for a long time.

(3) Diameter of bolt

The tightening torque differs with the diameter of the bolt. Generally a larger diameter bolt requires larger tightening torque.

(4) Tightening conditions

The tightening torque differs according to the torque ratio, class, and length of bolts even when bolts with the same size threads are used. The tightening torque also differs according to the condition of the surface of workpiece through which the bolts are to be tightened. When the bolt and nut turn together, torque is greatly reduced.

MAINTENANCE AND INSPECTION

WARNING: Pull out battery before doing any inspection or maintenance.

1. Checking the condition of the bit

The bits should be checked regu broken bits can slip or decrease the efficiency of the motor and burn it out.

Replace worn bits with new ones.

CAUTION

If you use a driver bit of which point is worn or broken, it will be dangerous since it slips. So replace it with a new one.

1. Check the Screws

Loose screws are dangerous. Regularly inspect them and make sure they are tight.

CAUTION

Using this power tool with loosened, screws is extremely dangerous.

1. Maintenance of the motor

The motor unit winding is the very "heart" of the power tool.

Exercise due care to ensure the winding does not become damaged and/or wet with oil or water.

1. Check for Dust

Dust may be removed with a soft cloth or a cloth dampened with soapy water.

Do not use bleach, chlorine, gasoline or thinner, for they may damage the plastics.

1. Inspection of terminals (tool and battery)

Check to make sure that swarf and dust have not collected on the terminals.

On occasion check prior, during and after operation.

CAUTION

Remove any swarf or dust which may have collected on the terminals.

Failure to do so may result in malfunction.

1. Disposal of the exhausted battery

WARNING

Do not dispose of the exhausted battery. The battery must explode if it is incinerated. The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for recycling options or proper disposal.

1. Storage

r Storing fin a place below 104°F (40°C) and out of the reach of children.

NOTE

Storing lithium-ion batteries

Make sure the lithium-ion batteries have been fully charged before storing them.

Prolonged storage (3 months or more) of batteries with a low charge may result in performance deterioration, significantly reducing battery usage time or rendering the batteries incapable of holding a charge.

However, significantly reduced battery usage time may be recovered by repeatedly charging and using the batteries two to five times.

If the battery usage time is extremely short despite repeated charging and use, consider the batteries dead and purchase new batteries.

1. Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a metabo HPT AUTHORIZED SERVICE CENTER, ONLY.

CAUTION

In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

Important notice on the batteries for the metabo HPT cordless power tools

Please always use one of our designated genuine batteries. We cannot guarantee the safety and performance of our cordless power tool when used with batteries other than these designated by us, or when the battery is disassembled and modified (such as disassembly and replacement of cells or other internal parts).

ACCESSORIES

WARNING

ALWAYS use Only authorized metabo HPT replacement parts and accessories. NEVER use replacement parts or accessories which are not intended for use with this tool. Contact metabo HPT if you are not sure whether it is safe to use a particular replacement part or accessory with your tool.

The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage.

NOTE

Accessories are subject to change without any obligation on the part of the metabo HPT.

STANDARD ACCESSORIES

WH18DFX(BG)
	1 Battery (BSL1820M) .... 12 Battery Charger (UC18YKSL) .... 13 Bag (Code No. 375801M) .... 14 Battery cover (Code No. 329897) .... 1

OPTIONAL ACCESSORIES (sold separately)

(1) Battery (BSL1820M)
(2) Hook (with screw)

NOTE

Specifications are subject to change without any obligation on the part of the metabo HPT.

CONSIGNES DE SÉCURITÉ IMPORTANTES

(R) indice (R) → Gâchette (L) indice (L) Bouton-poussoir

Fig. 8

PRÉCAUTION

Line drawing of a quill pen in an inkwell (no text or symbols)

WARNING:

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• Lead from lead-based paints,
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

AVERTISSEMENT:

Please contact Koki Holdings America Ltd. at 1-800-59-TOOLS (toll free), or metabo HPT AUTHORIZED POWER TOOL SERVICE CENTER regarding COLLECTION.

Pour le RAMASSAGE, contacter Koki Holdings America Ltd. au 1-800-59-TOOLS (appel gratuit), ou UN SERVICE APRÈS-VENTE D'OUTILS ÉLECTRIQUE AGRÉÉ PAR metabo HPT.

Minato-ku, Tokyo 108-6020, Japan

Distributed by

Koki Holdings America Ltd.

1111 Broadway Ave,

Braselton, Georgia, 30517

Koki Holdings America Ltd. Canadian Branch

3405 American Drive, Units 9-10,

Mississauga, ON, L4V 1T6