WH 10DL - Drill HITACHI - Free user manual and instructions

USER MANUAL WH 10DL HITACHI

Cordless Impact Driver

Line drawing of a handheld electric drill bit (no 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 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 ...... 3

MEANINGS OF SIGNAL WORDS ...... 3

SAFETY 3

GENERAL SAFETY RULES 3

SPECIFIC SAFETY RULES AND SYMBOLS ..... 5

IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CHARGER 6

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE BATTERY AND BATTERY CHARGER 6

CAUTION ON LITHIUM-ION BATTERY ...... 7

FUNCTIONAL DESCRIPTION 9

NAME OF PARTS 9

SPECIFICATIONS 10

Page

ASSEMBLY AND OPERATION 11

APPLICATIONS 11

REMOVAL AND INSTALLATION METHOD OF BATTERY 11

CHARGING METHOD 11

BEFORE USE 12

OPERATION 12

OPERATIONAL CAUTIONS 14

MAINTENANCE AND INSPECTION 14

ACCESSORIES 16

STANDARD ACCESSORIES 16

OPTIONAL ACCESSORIES 16

PARTS LIST 45

TABLE DES MATIERES

Français

Page

CONSIGNES DE SÉCURITÉ IMPORTANTES ..... 17

SIGNIFICATION DES MOTS D'AVERTISSEMENT .. 17

SÉCURITÉ 17

REGLES GENERALE DE SÉCURITÉ ...... 17

REGLES DE SÉCURITÉ SPÉCIFIQUES ET SYMBOLES 19

CONSIGNES DE SÉCURITÉ IMPORTANTES POUR LE CHARGEUR DE BATTERIE .... 20

CONSIGNES DE SÉCURITÉ IMPORTANTES POUR L'UTILISATION DE LA BATTERIE ET DU CHARGEUR DE BATTERIE .... 21

PRÉCAUTIONS RELATIVES A LA BATTERIE AU LITHIUM ION 21

DESCRIPTION FONCTIONNELLE 23

NOM DES PARTIES 23

SPECIFICATIONS 24

Page

ASSEMBLAGE ET FONCTIONNEMENT ..... 25

UTILISATIONS 25

MÉTHODE DE RETRAIT ET D'INSTALLATION DE LA BATTERIE 25

MÉTHODE DE RECHARGE 25

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 HITACHI.

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 SAFETY RULES

WARNING:

Read all instructions

Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

The term “power tool” in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

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 flammable liquids, gases or dust.
Power tools create sparks which may ignite the dust of 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.

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 tired or under the influence of drugs, alcohol or medication.

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

b) Use safety equipment. Always wear eye protection.

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

c) Avoid accidental starting. Ensure the switch is in the off position before plugging in.

Carrying power tools with your finger on the switch or plugging in 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 rotating part 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 these devices 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 tools operation.

If damaged, have the power tool repaired before use.

Many accidents are caused by poorly maintained power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting 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 and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed.

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

5) Battery tool use and care

a) Ensure the switch is in the off position before inserting battery pack.

Inserting the battery pack into power tools that have the switch on invites accidents.

b) 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.

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

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

d) 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.

e) Under abusive conditions, liquid may be ejected from the battery, avoid contact. If contact accidentally occurs, flush 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, user must read instruction manual.

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.

SPECIFIC SAFETY RULES AND SYMBOLS

1. Hold power tools by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord.

Contact with a "live" wire will make exposed metal parts of the tool "live" and shock the operator.

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 driver drill 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 Hitachi 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. 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 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 UC10SFL.
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, charge HITACHI rechargeable battery type BCL1015. Other type of batteries may burst causing personal injury and damage.

4. Do not expose battery charger to rain or snow.

5. 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.
6. To reduce risk of damage to electric plug and cord, pull by plug when disconnecting battery charger.
7. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.
8. 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 Amperes* AWG Size of Cord
Equal to or but less Length of Cord, Feet (Meter) greater than than 25 (7.5) 50 (15) 100 (30) 150 (45)
0	2	1	8
2	3	1	8
3	4	1	8

* 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 UC10SFL battery charger, be sure to read all instructions and cautionary statements on it, the battery and in this manual.

CAUTION:

USE ONLY HITACHI BATTERY TYPE BCL1015. OTHER TYPES 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).
12. ALWAYS operate charger on standard household electrical power (120 volts). Using the charger on any other voltage may overheat and damage the charger.
13. ALWAYS wait at least 15 minutes between charges to avoid overheating the charger.
14. 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. 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.
13. 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.
14. 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.

CAUTION

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 (WH10DL)

Housing Switch trigger Handle Battery L Indication Push button

Nameplate (R) Indication

○ Battery (BCL1015)

Latch Nameplate

Fig. 1

2. Battery Charger (UC10SFL)

Caution plate Battery installation hole Body Pilot lamp Nameplate

Fig. 2

SPECIFICATIONS

1. Cordless Impact Driver (WH10DL)

Motor DC motor
No-load speed 0 – 2,300 / min
Capacity (Ordinary bolt) M5 – M12
Tightening torque (Maximum) 930 in-lbs (105 N·m)
Bit shank size 1/4" (6.35 mm) Hex.
Battery	Model BCL1015
	Type Lithium - ion battery
	Voltage DC 10.8 V
	Charging & discharging frequency	About 1,000 times
Weight 2.2 lbs. (1.0 kg)

1. Battery Charger (UC10SFL)

Input power source Single phase: AC 120 V 60 Hz
Charging time	Approx. 40 min.(At a temperature of 68°F (20°C))
Charging voltage DC 10.8 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

Tightening and loosening of machine screws, wood screws and tapping screws.

REMOVAL AND INSTALLATION METHOD OF BATTERY

○ How to install the battery.
Align the battery with the groove in tool handle and slip it into place.
Always insert it all the way until it locks in place with a little click, If not, it may accidentally fall out of the tool, causing injury to you or someone around you (Fig. 3).
○ How to remove the battery.
Withdraw battery from the tool handle while pressing the latch (2 pcs) of the battery (Fig. 3).

Handle Latch Insert Push Pull out Battery

Fig. 3

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. Insert the plug of battery charger into the receptacle.

WARNING:

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

1. Insert the battery to the battery charger.

Insert the battery into the battery charger as shown in Fig. 4.

Battery Pilot lamp

Fig. 4

3. Charging

When the battery is connected to the battery charger, charging will commence and the pilot lamp will light on.

NOTE:

If the pilot lamp does not light, 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 go out.

NOTE:

The battery charging time becomes longer when a temperature is low or the voltage of the power source is too low.

When the pilot lamp does not go off even if more than four hour has passed after start of the charging, stop the charging and contact your HITACHI AUTHORIZED SERVICE CENTER.

○ Regarding the temperature of the rechargeable battery.

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

Table 2

Rechargeable Temperatures at which the batteries battery can be recharged

BCL1015 32°F — 122°F (0°C — 50°C)

○ Regarding recharging time

Table 3 shows the recharging time required according to the type of battery.

Table 3 Recharging time (approx. min.) at 20°C

Battery Battery capacity (Ah)
voltage (V)	1.5 Ah
10.8 BCL	1015 40 min.

NOTE:

The recharging time may vary according to the ambient temperature and the power supply 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.

How to make the batteries perform longer.

○ 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.

○ 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 minutes rest until the next charging.

- If the battery is recharged when it is warm due to battery use or exposure to sunlight, the pilot lamp may not light.

The battery will not be recharged. In such a case, let the battery cool before charging.

- If the battery charger does not work while the battery is mounted correctly, 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. 5)

Movement Guide sleeve Driver bit Hexagonal hole in the socket

Fig. 5

(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.

1. Confirm that the battery is mounted correctly

2. Check the rotational direction.

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

The L-side of the selector button is pushed to turn the bit counterclockwise (See Fig. 6).

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

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

Fig. 6

1. 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.

1. 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.

1. Using the light

Pull the trigger switch to light up the light. The light keeps on lighting while the trigger switch is being pulled. The light goes out after releasing the trigger switch. (Fig. 7)

Light Trigger switch

Fig. 7

CAUTION:

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

1. Battery level warning lamp

The battery level can be checked by pulling the trigger switch while the power tool is in a no-load state. The battery level warning lamp lights when the battery power is very low. If this happens, charge the battery. (Fig. 8)

Battery level warning lamp

Line drawing of a vehicle's front and rear compartment (no text or symbols)

Fig. 8

NOTE:

○ The level at which the battery level warning lamp lights may vary due to the ambient temperature, characteristics of the battery, etc. and is intended only as a guide.
☐ The battery level warning lamp may light when the power tool is overloaded. This does not mean that the battery power is very low.

Be sure to check the battery level while the tool is in a no-load state.

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.

1. Cautions on use of the speed control switch
   This switch has a built-in, electronic circuit which steplessly varies the rotation speed. Consequently, when the switch trigger 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.
2. 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.
3. 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.
5. Confirm the tightening torque
The following factors contribute to a reduction of the tightening torque. So confirm 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

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

1. Checking the condition of the bit The bits should be checked regularly. If worn or 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.

2. Inspecting the carbon brushes (Fig. 9) The motor employs carbon brushes which are consumable parts. Since and excessively worn carbon brush can result in motor trouble, replace the carbon brush with new ones when it becomes

worn to or near the "wear limit". In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

Wear limit 3mm 11.5mm

Fig. 9

Nail of carbon brush Protrusion of carbon brush

Fig. 10

NOTE:

When replacing the carbon brush with a new one, be sure to use the Hitachi Carbon Brush Code No. 999054.

5. Replacing carbon brushes

Take out the carbon brush by first removing the brush cap and then hooking the protrusion of the carbon brush with a flat head screw driver, etc., as shown in Fig. 11.

When installing the carbon brush, choose the direction so that the nail of the carbon brush agrees with the contact portion outside the brush tube. Then push it in with a finger as illustrated in Fig. 12. Lastly, install the brush cap.

Illustration of a hand using a screwdriver to adjust or apply material to a small object (no text or symbols present)

Fig. 11

Diagram of a camera lens and its internal component, showing the lens and connector (no text or symbols)

Contact portion
outside brush tube
Fig. 12

CAUTION:

- Be absolutely sure to insert the nail of the carbon brush into the contact portion outside the brush tube. (You can insert whichever one of the two nails provided.)

- Caution must be exercised since any error in this operation can result in the deformed nail of the carbon brush and may cause motor trouble at an early stage.

6. 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. 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 it's 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.

8. Storage

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

9. 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 HITACHI AUTHORIZED SERVICE CENTER, ONLY.

1. Service parts list

CAUTION:

Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center.

This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

MODIFICATIONS:

Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements.

Accordingly, some parts may be changed without prior notice.

ACCESSORIES

WARNING:

ALWAYS use Only authorized HITACHI replacement parts and accessories. NEVER use replacement parts or accessories which are not intended for use with this tool. Contact HITACHI 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 HITACHI.

STANDARD ACCESSORIES

WH10DL(2LCSK)	Fig. 111 Phillips bit (No. 2 × 50L) (Code No. 992671)....12 Battery (BCL1015)....23 Battery Charger (UC10SFL)....14 Plastic Case....1
WH10DL(NN)(For KIT)	Without Phillips bit, battery, battery charger and plastic case

OPTIONAL ACCESSORIES.....sold separately

1. Battery (BCL1015)

Line drawing of a cylindrical battery with cooling fins (no text or symbols)

NOTE:

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

CONSIGNES DE SÉCURITÉ IMPORTANTES

Plaque signalétique Indication (R) (droite)

○ Batterie (BCL1015)

Taquet Plaque signalétique

Fig. 1

Line drawing of a mechanical component with no visible text or symbols

Fig. 8

REMARQUE :

Illustration of a hand using a screwdriver to draw a small object from a mechanical component (no text or symbols present)

Fig. 11

Diagram of a camera lens and its internal component, showing the lens and connector (no text or symbols)

Line drawing of a cylindrical battery with cooling fins (no text or symbols)

REMARQUE:

Line drawing of a mechanical component with no visible text or symbols

Fig. 8

NOTA:

Line drawing of a hand holding a tool over a small object, possibly a tool or device (no text or symbols present)

Fig. 11

Diagram showing a camera head with an inset close-up of the camera module (no text or symbols)

Line drawing of a battery with a cylindrical top and side ports (no text or symbols)

NOTA:

Exploded view diagram of a mechanical assembly with numbered parts and component labels

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

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

Please contact HITACHI KOKI U.S.A. LTD. at 1-800-59-TOOLS (toll free), or HITACHI AUTHORIZED POWER TOOL SERVICE CENTER recarding COLLECTION.

Pour le RAMASSAGE, contacter HITACHI KOKI U.S.A. LTD. au 1-800-59-TOOLS (appel gratuit), ou UN SERVICE APRES-VENTE D'OUTILS ELECTRIQUE AGREE PAR HITACHI.

Minato-ku, Tokyo 108-6020, Japan

Distributed by

Hitachi Koki U.S.A., Ltd.

3950 Steve Reynolds Blvd.

Norcross, GA 30093

Hitachi Koki Canada Co.

450 Export Blvd. Unit B,

Mississauga ON L5T 2A4

712

Code No. C99169961

Printed in China