Hitachi FDS 10DVA User manual

INSTRUCTION MANUAL
AND
SAFETY INSTRUCTIONS
FOR
CORDLESS DRIVER DRILL
WARNING:
Improper and unsafe use of this power tool can result in
death or serious bodily injury!
Thismanualcontainsimportantinformationaboutproduct
safety. Please read and understand this manual before
operatingthepowertool.Pleasekeepthismanualavailable
for others before they use the power tool.
!
MODEL FDS10DVA
Variable speed

— CONTENTS —
Page
IMPORTANT INFORMATION.................................................................................... 3
MEANINGS OF SIGNAL WORDS............................................................................. 3
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING ALL POWER TOOLS.................................................................... 4
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE CORDLESS DRIVER DRILL................................................ 7
IMPORTANT SAFETY INSTRUCTIONS
FOR BATTERY CHARGER................................................................................ 7
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE BATTERY AND BATTERY CHARGER ............................... 8
DISPOSAL OF THE EXHAUSTED BATTERY ....................................................... 9
OPERATION AND MAINTENANCE
MODEL .................................................................................................................. 10
NAME OF PARTS.................................................................................................. 10
SPECIFICATIONS .................................................................................................. 11
ACCESSORIES ...................................................................................................... 12
STANDARD ACCESSORIES ............................................................................ 12
OPTIONAL ACCESSORIES .............................................................................. 12
APPLICATIONS ..................................................................................................... 13
REMOVAL AND INSTALLATION METHOD OF BATTERY ................................. 13
CHARGING METHOD ........................................................................................... 14
BEFORE USE ......................................................................................................... 15
OPERATION .......................................................................................................... 15
THE SCOPE AND SUGGESTIONS FOR USES.................................................... 18
HOW TO SELECT TIGHTENING POWER AND SPEED....................................... 19
MAINTENANCE AND INSPECTION..................................................................... 19
STORAGE .............................................................................................................. 20
SERVICE AND REPAIRS ....................................................................................... 20
PARTS LIST ........................................................................................................... 22

3
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and
warningsin theInstructionManualbeforeoperatingormaintainingthispowertool.
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 instruc-
tions.
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, unless you first confirm that the planned use will be safe for you and
others.
The warranty of this power tool is separately packed. Before using this power tool,
make sure to thoroughly read and understand the content of the warranty.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could
result in serious personal injury.
CAUTION indicates a hazardous situations which, if ignored, could result in
moderate personal injury, or could cause machine damage.
NOTE emphasizes essential information.

4
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING ALL POWER TOOLS
WARNING: Death or serious bodily injury could result from improper or
unsafe use of power tools. To avoid these risks, follow these
basic safety instructions:
READ ALL INSTRUCTIONS
1. NEVER TOUCH MOVING PARTS.
Never place your hands, fingers or other body parts near the tool’s moving
parts.
2. 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.
3. ALWAYS WEAR EYE AND EAR PROTECTION.
Protect yourself from flying or expelled wood chips, metal particles or other
debris by using safety goggles or equivalent eye protection. Wear ear protec-
tion to protect yourself from excessive noise.
4. AVOID UNINTENTIONAL STARTING.
Don’t carry the tool with your finger near the power switch.
5. STORE TOOL PROPERLY.
When not in use, the tool should be stored in a dry place. Keep out of reach of
children. Lock-out the storage area.
6. KEEP WORK AREA CLEAN.
Cluttered areas and benches invite injuries.
Clear all work areas and work benches of unnecessary tools, debris, furniture,
etc.
7. CONSIDER WORK AREA ENVIRONMENT.
Don’t expose power tools to rain.
Don’t use power tools in damp or wet locations.
Keep work area well lit and well ventilated.
Don’t use tool in presence of flammable liquids or gases.
Power tools produce sparks during operation. They also spark when
switchingON/OFF.Neverusepowertoolsinsitescontaininglacquer,paint,
benzine, thinner, gasoline, gases, adhesive agents, and other materials
which are combustible or explosive.

5
8. KEEP CHILDREN AWAY.
Do not let visitors contact tool.
All visitors should be kept safely away from work area.
9. DON’T FORCE TOOL.
It will do the job better and safer at the rate for which it was intended.
10. USE RIGHT TOOL.
Don’t force small tool or attachment to do the job of a heavy-duty tool.
Don’tusetoolforpurposenotintended-forexample-don’tusecircularsawfor
cutting tree limbs or logs.
11. DRESS PROPERLY.
Do not wear loose clothing or jewelry.
Theycanbecaughtinmovingparts.Rubberglovesandnon-skidfootwearare
recommended when working outdoors.
Wear protective hair covering to contain long hair.
12. USE FACE OR DUST MAKE IF OPERATION IS DUSTY.
13. SECURE WORK.
Use clamps or a vise to hold work. It’s safer than using your hand and it frees
both hands to operate tool.
14. DON’T OVERREACH.
Keep proper footing and balance at all times.
15. MAINTAIN TOOLS WITH CARE.
Keep tools sharp and clean for better and safer performance.
Follow instructions for lubricating and changing accessories.
Keep handles dry, clean, and free from oil and grease.
16. REMOVE ADJUSTING KEYS AND WRENCHES.
Keys and adjusting wrenches remove from tool before turning it on.
17. STAY ALERT.
Watchwhatyouaredoing.Usecommonsense.Donot operate tool when you
are tired.
Tools should never be used by you if you are under the influence of alcohol,
drugs or medication that makes you drowsy.
18. CHECK DAMAGED PARTS.
Before further use of the tool, a guard or other part that is damaged should be
carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any other conditions that may affect
its operation. A guard or other part that is damaged should be properly
repaired or replaced by an authorized service center unless otherwise indi-
cated elsewhere in this Instruction Manual.
Have defective switches replaced by authorized service center.
Do not use tool if switch does not turn it on and off.

6
19. 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.
20. 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.
21. CHECK FOR LIVE WIRES.
Avoidtheriskofsevereelectricalshockbycheckingforliveelectricalwiresthat
may be hidden by walls, floors or ceilings. The wires should be de-energized
before work begins.
22. KEEP ALL SCREWS, BOLTS AND COVERS TIGHTLY IN PLACE.
Keep all screws, bolts, and plates tightly mounted. Check their condition
periodically.
23. DO NOT USE POWER TOOLS IF THE PLASTIC HOUSING OR HANDLE ARE
CRACKED.
Cracks in the tool’s housing or handle can lead to electric shock.
Such tools should not be used until repaired.
24. BLADES AND ACCESSORIES MUST BE SECURELY MOUNTED TO THE TOOL
Preventpotentialinjuriestoyourselforothers.Blades,cuttingimplementsand
accessories which have been mounted to the tool should be secure and tight.
25. NEVER USE A TOOL WHICH IS DEFECTIVE OR OPERATING ABNORMALLY.
If the tool appears to be operating unusually, making strange noises, or
otherwiseappearsdefective,stopusingitimmediatelyandarrangeforrepairs
by an authorized Hitachi service center.
26. CAREFULLY HANDLE POWER TOOLS.
Shouldapowertoolbedroppedorstruckagainsthardmaterialsinadvertently
it may be deformed, cracked, or damaged.
27. DO NOT WIPE PLASTIC PARTS WITH SOLVENT.
Solventssuch as gasoline,thinner, benzine, carbontetrachloride, 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.
28. USE ONLY AUTHENTIC HITACHI REPLACEMENT PARTS.
Replacement parts not manufactured by Hitachi may void your warranty and
can lead to malfunction and resulting injuries. Authentic Hitachi parts are
available from your dealer.

7
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE CORDLESS DRIVER DRILL
WARNING: Death or serious bodily injury could result from improper or
unsafe use of the cordless driver drill. To avoid these risks,
follow these basic safety instructions:
1. Neverplacehandsorotherbodypartsnearthedrillbitorchuckduringoperation.
Hold the drill by its handle only.
2. Becausethe cordless driver drill operates by battery power,be aware of the fact
that it can begin to operate at any time.
3. Wear eye and ear protection at all times.
4. When working at elevated locations, clear the area of all other people and be
aware of conditions below you.
IMPORTANT SAFETY INSTRUC-
TIONS FOR BATTERY CHARGER
1. This manual contains important safety and operating instructions for battery
charger Model UC 9SC.
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 FEB9. Other
type of batteries may burst causing personal injury and damage.
4. Do not expose battery charger to rain or snow.
5. Useofanattachmentnotrecommendedorsoldbythebatterychargermanufac-
turer may result in a risk of fire, electric shock, or injury to persons.
6. Toreduceriskofdamagetoelectricplugandcord,pullbyplugwhendisconnect-
ing 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. Thatbladesofextensioncordarethesamenumber,size,andshapeasthose
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.

8
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 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:
9. Do not operate battery charger with damaged cord or plug-replace them
immediately.
10. 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.
11. Do not disassemble battery charger; take it to a qualified serviceman when
serviceorrepairisrequired.Incorrectreassemblymayresultinariskofelectric
shock or fire.
12. To reduce risk of electric shock, unplug charger from receptacle before
attemptinganymaintenanceorcleaning.Removingthebatterywillnotreduce
this risk.
IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE
BAT TERY AND BATTERY CHARGER
Youmustchargethebatterybeforeyoucanusethecordlessimpact wrench. Before
using the model UC9SC battery charger, be sure to read all instructions and
cautionary statements on it, the battery and in this manual.
REMEMBER: USEONLYHITACHIBATTERYTYPEFEB9.OTHERTYPESOFBATTER-
IES 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:
= 10 amperes
1250watts
125 volts

9
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 50°F (10°C) or above 104°F
(40°C).
7. NEVER connect two battery chargers together.
8. NEVER insertforeignobjectsintotheholeforthebatteryorthebatterycharger.
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.
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 pur-
chased contains a rechargeable battery. The battery is recy-
clable. 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
officialsfordetailsinyourareaforrecyclingoptionsorproper
disposal.
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS OF THIS TOOL!

10
Keyless Chuck Shift Knob Driver Bit
Cap
Reversing Switch
OPERATION AND MAINTENANCE
NOTE: The information contained in this Instruction Manual is designed to assist
you in the safe operation and maintenance of the power tool.
Some illustrations in this Instruction Manual may show details or attach-
ments that differ from those on your own power tool.
MODEL
FDS10DVA: with charger and case
NAME OF PARTS
1. Cordless Driver Drill (FDS10DVA)
Switch Trigger
Indication
䡬Battery (FEB9)
Terminal Hole
Nameplate
Latch
Fig. 1
Battery (FEB9)
Nameplate
Indication

11
Input power source Single phase: AC 120V 60Hz
Charging time Approx. One hour (At a temperature of 68°F (20°))
Charger Charging voltage .......................... DC 9.6
Charging current........................... DC 1.55A
Weight 2.4 Ibs (1.1 kg)
2. Battery Charger (UC9SC)
SPECIFICATIONS
1. Cordless Driver Drill (FDS10DVA)
Model FDS10DVA
Motor DC Motor
No-load speed Low speed 0 –280 rpm
High speed 0 –850 rpm
Capacity Drilling
Wood............................. 23/32'’(18mm) (Soft Wood)
Metal ...........3/8'’(10mm) (Mild Steel or Aluminum)
Screw Driver
Wood screw......................# 12 ⳯1-3/4'’(Soft Wood)
(5.5 mm ⳯45 mm)
Small screw ......................1/4'’(6mm)
Drill chuck capacity Maximum gripping diameter 3/8'’(10mm)
Battery (FEB9) Nickel cadmium battery
Voltage ................................................................ DC9.6V
Charging & discharging frequency .............. about 500
Weight 3.3 Ibs (1.5kg)
2. Battery Charger (UC9SC)
Battery Installation Hole
Nameplate
Pilot Lamp
Cord
Fig. 2

12
ACCESSORIES
!
WARNING: Accessories for this power tool are mentioned in this
Instruction Manual.
The use of any other attachment or accessory can be danger-
ous and could cause injury or mechanical damage.
STANDARD ACCESSORIES
OPTIONAL ACCESSORIES.....sold separately
1. Battery (FEB9)
2. Phillips bit Use ....Driving of wood screws, tapping screws and
machinescrewswiththeheadofaplusgroove
Size ....No. 2
1Phillips bit (No. 2) ....................................... 1
(Code No. 308510)
2Slotted bit (5/32'' (4 mm)) .......................... 1
(Code No. 308511)
3Battery Charger (UC 9SC) .......................... 1
4Plastic Case (Code No. 309926) ................. 1
FDS10DVA (1HCK)
Fig. 4
Fig. 5

13
Fig. 6
3. Slotted bit Use ....Driving of wood screw and machine screws
with the head of a minus groove
Size....5/32'’(4mm)
4. Hexagonsocket(Varioussocketfor5/32"(4mm),3/16"(5mm)and15/64"
(6mm) bolts)
NOTE:
Accessories are subject to change without any obligation on the part of the
HITACHI.
APPLICATIONS
䡬Use as a drill
Drilling of soft steel, wood, plastic and aluminum materials.
䡬Use as a screwdriver
Tighteningandlooseningofmachinescrews,woodscrewsandtappingscrews.
REMOVAL AND INSTALLATION METHOD OF BATTERY
Fig. 7
䡬How to remove the battery.
Hold the handle tight.
Press the latch located at the front of the
battery and pull out the battery. (Fig. 8)
䡬How to install the battery.
Position the battery so that the latch faces
towardtheswitchtriggerinthehandleand
insert the battery. (Fig.8)
Handle
Switch
Trigger
Pull out
Latch
Push
Fig. 8
Battery
Insert

14
CHARGING METHOD
NOTE:
Before plugging into the receptacle, make sure
the following points.
䡬The power source voltage is stated on the
nameplate.
䡬The cord is not damaged.
WARNING:
Do not charge at voltage higher than indi-
cated on the nameplate.
If charged at voltage higher than indicated
on the nameplate, the charger will burn up.
1. Insert the battery to the battey charger.
Insertthebatteryintothebatterychargeras
shown in Fig. 9
Make sure it contacts the bottom of the
battery charger.
Nameplate
Fig. 9
2. Insert the plug of battery charger into the receptacle.
WARNING: Do not use the electrical cord if damaged.
Have it repaired immediately.
3. Charging
䡬When the plug of battery charger has been inserted into the receptacle,
charging will commence and the pilot lamp will light on.
NOTE: Ifthe pilotlamp does not light, pull out the plug fromthe receptacleand
check if the battery is properly mounted.
䡬In approx. one hour, when the battery is fully charged, the pilot lamp will go
out.
NOTE: Thebatterychargingtimebecomeslongerwhenatemperatureislowor
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.
Pilot Lamp
Battery

15
4. 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 damag-
ing cord.
5. Remove the battery from the battery charger.
Supporting the battery charger with hand, pull out the battery from the battery
charger.
CAUTION:
●When the battery charger has been continuously used, the battery charger will
be heated, thus constituting the cause of 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,thepilot lampmay notlight.Thebatterywill notberecharged.Insuch
a case, let the battery cool before charging.
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.
(1) Mounting the bit.
Insert a screwdriver bit etc. into the keyless
drill chuck.
Firmly grasp the ring and tighten the sleeve
by turning it toward the right (in the clock-
wise direction as viewed from the front).
(See Fig. 10)
NOTE: If the sleeve becomes loose during op-
eration, tighten it further.
The tightening force becomes stronger
when the sleeve is tightened.
OPERATION
1. Mounting and dismounting the bit
Ring
Tighten
Sleeve Loosen
Fig. 10

16
(2) Dismounting the bit.
Firmly grasp the ring and loosen the sleeve by turning it toward the left (in the
counterclockwise direction as viewed from the front). (See Fig. 10)
CAUTION: When mounting a bit into the keyless chuck, tighten firmly.
If the sleeve is not tight, the bit may slip or fall out, causing injury.
NOTE: When it is no longer possible to loosen the sleeve, use a vise or similar
instrument to secure the bit.
Set the cap’s white line between “1”and “3”on the housing. (Fig. 12)
Turn the sleeve to the loose side (left side) while operating the clutch.
It should be easy now to loosen the sleeve.
2. Check the attachment of the battery.
CAUTION: Install the battery properly.
If not installed properly, it may fall out of the power tool and cause
danger.
3. Check the direction of rotation.
Whenthereversingswitchissetto thebitrotatesclockwisewhenviewedfrom
the drill rear. When set to , the bit rotates counterclockwise. (Fig. 11)
(The and marks are provided on the housing)
NOTE: A buzzing noise is produced when the motor is about to rotate; this is only a
noise, not a machine failure.
4. Switch operation
䡬Whentheswitch trigger ispulled,
the bit rotates.
When the trigger is let loose, the
bit stops.
䡬The rotational speed can be con-
trolledbyvaryingtheamountthat
theswitchtriggerispulled.Speed
is low when the switch trigger is
pulled slightly and increases as
the switch is pulled more.
Reversing Switch
Switch Trigger
Fig. 11
Indication Indication

17
5. Check the cap position.
The tightening power of this
Cordlessdriverdrillcanbeadjusted
according to the cap position, at
which the cap is set.
䡬Foruseasascrewdriver,setthecap
white line at one of the numerals
“1”to “5”on the housing.
䡬For use as a drill, set the white line
at the drill mark “”. (Fig. 12)
1
2
4
5
3
Cap Weak White Line
Drill Mark
Fig. 12
6. Tightening power adjustment
(1) Tightening power
Tightening power must correspond in its intensity to the screw diameter.
When too much power is used, the screw could break.
Be sure to adjust the cap in conformity with the screw diameter.
(2) Tightening power indication
Tightening power must be changed according to the screw type, screw size and
thematerialstobetightened.Theamountoftighteningpowerisindicatedbythe
numbers“1”,“2”,“3”,“4”,and“5”locatedonthehousing.“1”istheminimum
tightening power. “5”is the maximum tightening power. (Fig. 12)
(3) How to adjust the tightening power
Rotate the cap to the desired tightening power by aligning the white line of the
cap with the desired number.
Adjust the tightening power by cap rotation in such a way that when the
tightening power is too strong, set the next smaller numeral at the arrow mark
and set the next larger numeral when too weak.
CAUTION:
The motor stops during operation, or will not turn, check battery strength and
charge if necessary. If motor still does not operate, the motor may be burnt.
Consult your authorized Hitachi Service Center.
7. High speed–Low speed changeover (Fig. 13)
The shift knob controls the drill speed.
Slide toward the drill bit for “low”speed.
Slide away from the drill bit for “high”speed.
Slide the shift knob completely to engage properly.
NOTE: Set the white line of the cap at one of either the numerals or drill mark.
The white line cannot be set between the marks.
Strong

18
Low Speed Side
Shift Knob
High Speed Side
Shift Knob
Fig. 13
CAUTION:
●Never change drill speed while motor is operating. Turn the drill “off”before
adjusting the shift knob.
●To ensure the engagement of the gear, push the shift knob to the end. (Fig. 13)
8. To use for drilling metal
䡬Use a metal-working drill bit. Apply a center punch at the desired drill site to
protect against drill bit slippage.
䡬Apply sewing machine oil or soapy water to the drill bit with an old toothbrush
to lubricate it and extend its life.
䡬Do not force the tool. Apply minimal pressure to the drill bit. Let the drill bit do
the work.
CAUTION:
Drilling a hole in the metal exerts considerable force on the edge of the hole so
that the drill bit may slip from the keyless chuck. If this happens, decrease the
pushing pressure on the power tool so that the drill bit does not slip.
THE SCOPE AND SUGGESTIONS FOR USES
Table 2
Work Cap position Usable range Suggestions
Drilling
Steel : 3/8'' (10mm)
(Thickness 1/16'' (1.6mm)) Take care not to
lock the motor
Wood : 23/32'' (18mm)
(Soft wood) (Thickness 23/32''(18mm))
Aluminum : 3/8'' (10mm)
(Thickness 1/16'' (1.6mm))
Screw
tightening 1 ~ 5
Small screws : 1/4'' (6mm) Use the bit and
socket matching
the screw
diameter
Nut : 1/4'' (6mm)
Wood screws : # 12 x 1-3/4''
(Soft wood) (5.5mm 45mm) Use after drilling a pilot hole

19
NOTE
Theselectedcontentshownintable3indicatesthedifferencesaccordingtoscrew
type, screw size and material used.
CAUTION:
●While operating the Cordless driver drill, take care not to lock the motor.
If the motor is locked, immediately turn the power off.
If the motor is locked for a while, the motor or battery must be burnt.
●Do tighten too strongly as the screw heads will be damaged.
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.
HOW TO SELECT TIGHTENING POWER AND SPEED
Table 3
NOTE
The numbers shown in Table 2 are references and vary according to type and
hardness of material to be drilled or screwed and sharpness of drill bit.
Use Cap
position Speed (shift knob position)
Low speed High speed
Screw
tightening
Small
screws 1 ~ 5 For #8 (4mm)
or below screw size For #10 (5mm) or above screw size
Wood
screws 1 ~ 5 For #6 (3.5mm)
or below screw size For #6 (3.8mm) or above screw size
Drilling
Wood
materials For 3/8'' (10mm) or larger diameters For 3/8'' (10mm) or less diameters
Metallic
materials For drilling with an iron working drill

20
2. Check the Mounting Screws
Loose mounting screws are dangerous. Regularly inspect them and make sure
they are tight.
CAUTION: Using this power tool with loosen, screws is extremely dangerous.
3. 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.
STORAGE
Storing in a place below 104°F (40°C) and out of the reach of children.
SERVICE AND REPAIRS
All quality power tools will eventually require servicing or replacement of parts
becauseofwearfrom normal use. To assure that only authorizedreplacementparts
will be used, all service and repairs must be performed by a HITACHI
AUTHORIZED SERVICE CENTER, ONLY.
NOTE:
Specifications are subject to change without any obligation on the part of the
HITACHI.