Hitachi DV 20V Handling Instructions Manual
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- Handling Instructions Manual
Handling instructions
Impact Drill
DV 20VD
Keep for future reference
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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, fi re 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.
Unmodifi ed 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.
CONTENTS
GENERAL POWER TOOL SAFETY WARNINGS ........................................12
IMPACT DRILL SAFETY WARNINGS .........................................................14
SYMBOLS ....................................................................................................15
SPECIFICATIONS ........................................................................................ 15
STANDARD ACCESSORIES .......................................................................16
APPLICATIONS ............................................................................................16
PRIOR TO OPERATION ...............................................................................16
HOW TO USE ...............................................................................................19
MAINTENANCE AND INSPECTION ............................................................ 20
SELECTING ACCESSORIES .......................................................................21
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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 tired or under the infl uence 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 fi nger 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 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 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.
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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 aff ect the power toolʼs
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, taking into account the working conditions and the work to be
performed.
Use of the power tool for operations diff erent from those intended could result in a
hazardous situation.
5) Service
a) Have your power tool serviced by a qualifi ed repair person using only identical
replacement parts.
This will ensure that the safety of the power tool is maintained.
CAUTION
Keep children and infi rm persons away.
When not in use, tools should be stored out of reach of children and infi rm persons.
IMPACT DRILL SAFETY WARNINGS
1
. Wear ear protectors when impact drilling.
Exposure to noise can cause hearing loss.
2. Use auxiliary handle(s), if supplied with the tool.
Loss of control can cause personal injury.
3. Hold power tool by insulated gripping surfaces, when performing an operation
where the cutting accessory may contact hidden wiring or its own cord.
Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool
“live” and could give the operator an electric shock.
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SYMBOLS
WARNING
The following show symbols used for the machine. Be sure that you understand their
meaning before use.
Read all safety warnings and all
instructions.
---/min revolutions per minute
V
Rated voltage Rotation only function
A
Current Rotation and impact function
n
0
No-load speed Class II tool
SPECIFICATIONS
Voltage* (110V, 120V, 220V, 230V, 240V)
Power input* 860 W
Speed change 1 2
No-load speed 0
–
1100 /min 0
–
3000 /min
Capacity
Steel 13 mm 8 mm
Concrete 20 mm 13 mm
Wood 40 mm 25 mm
Full load impact rate 8100 /min 22000 /min
Weight (without cord) 3.0 kg
* Be sure to check the nameplate on product as it is subject to change by areas.
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STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package contains the accessories listed in the below.
1
Plastic Carrying Case
(Code No. 338762)
1
2
Side Handle
(Code No. 338768)
1
3
Depth Gauge
(Code No. 303709)
1
4
Chuck Wrench
(Code No. 987576)
1
APPLICATIONS
○
By combined actions of ROTATION and IMPACT:
Boring holes in hard materials (concrete, marble, granite, tiles, etc.)
○
By ROTATIONAL action:
Boring holes in metal, wood and plastic.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms to the power requirements specifi ed
on the product nameplate.
2. Power switch
Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle
while the power switch is in the ON position, the power tool will start operating immediately,
which could cause a serious accident.
3. Extension cord
When the work area is removed from the power source, use an extension cord of suffi cient
thickness and rated capacity. The extension cord should be kept as short as practicable.
4. Check the receptacle
If the receptacle only loosely accepts the plug, the receptacle must be repaired.
Contact a licensed electrician to make appropriate repairs.
If such a faulty receptacle is used, it may cause overheating, resulting in a serious hazard.
5. Confi rming condition of the environment
Confi rm that the work site is placed under appropriate conditions conforming to prescribed
precautions.
6. Selecting the appropriate drill bit
○
When boring concrete or stone
Use the drill bits specifi ed in the Optional Accessories.
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○
When boring metal or plastic
Use an ordinary metalworking drill bit.
○
When boring wood
Use an ordinary woodworking drill bit.
However, when drilling 6.5 mm or smaller holes,
use a metalworking drill bit.
7. Mounting and dismounting of the bit (Fig. 1)
(1) Open the chuck jaws, and insert the bit into the
chuck.
(2) Place the chuck wrench in each of the three
holes in the chuck, and turn it in the clockwise
direction (viewed from the front side). Tighten
securely.
(3) To remove the bit, place the chuck wrench into
one of the holes in the chuck and turn it in the
counter-clockwise direction.
8. Fixing the side handle (Fig. 2)
Attach the side handle to the mounting part.
Rotate the side handle grip in a clockwise
direction to secure it.
Set the side handle to a position that is suited to
the operation and then securely tighten the side
handle grip.
To attach a depth gauge on the side handle,
insert the gauge into the U-shaped groove on
the side handle, adjust the position of the depth
gauge in accordance with the desired depth of
the hole, and fi rmly tighten the side handle grip.
(Fig. 3)
9. IMPACT to ROTATION changeover (Fig. 4)
Shift the change lever between the right and left
positions to switch easily between IMPACT
(rotation and impact) and ROTATION (rotation
only), respectively.
To bore holes in hard materials such as
concrete, stone and tiles, shift the change
lever to the right-hand position (as indicated
by the
mark). The drill bit operates by the
combined actions of impact and rotation.
To bore holes in metal, wood and plastic,
shift the change lever to the left-hand
position (as indicated by the “
” mark). The
drill bit operates by rotational action only, as
in the case of a conventional electric drill.
Drill chuck
Chuck
wrench
Tighten
Loosen
Fig. 1
Side handle
Loosen Tighten
Fig. 2
Side handle
Depth gauge
Loosen Tighten
Fig. 3
Change lever
Impact Rotation
Fig. 4
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CAUTION
○
Do not use the impact drill in the IMPACT function if the material can be bored by
rotation only. Such action will not only reduce drill effi ciency, but may also damage
the drill tip.
○
Operating the impact drill with the change lever in mid-position may result in
damage. When switching, make sure that you shift the change lever to the correct
position.
NOTE
The change lever may not shift smoothly when
changing from impact drill mode to drill mode.
In this case, switch ON and operate the
machine for a few seconds. The spindle shaft
will then be pushed forward, and the change
lever can be moved smoothly.
10. High-speed/Low-speed changeover:
Prior to changing speed, ensure that the
switch is in the OFF position, and the drill has
come to a complete stop. To change speed,
rotate the gear shift dial as indicated by the
arrow in Fig. 5. The numeral “1” engraved on
the drill body denotes low speed, the numeral
“2” denotes high speed.
If it is hard to turn the gear shift dial, turn the
chuck slightly in either direction and then turn
the gear shift dial again.
11. Check the rotational direction (Fig. 6, 7)
The bit rotates clockwise (viewed from the
rear side) by turning the rotational change
lever counterclockwise.
The bit rotates counterclockwise (viewed
from the rear side) by turning the rotational
change lever clockwise.
NOTE
Actuate the rotational change lever only
when the machine is at standstill.
The rotational change lever is used to
reverse the rotational direction of the
machine. However, this is not possible with
the On/Off switch actuated.
Gear
Shift Dial
Fig. 5
Fig. 6
Rotational change
lever
Rotational change
lever
Fig. 7
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CAUTION
○
Always use the impact drill with clockwise
rotation, when using it as an impact drill.
(Fig. 8)
○
Operating the tool with the rotational
change lever in mid-position may result in
damage.When switching, make sure that
you shift the rotational change lever to the
correct position.
HOW TO USE
CAUTION
To prevent accidents, make sure to turn the switch off and disconnect the plug
from the receptacle when the drill bits and other various parts are installed or
removed. The power switch should also be turned off during a work break and after
work.
1. Switch operation
○
When the trigger is depressed, the tool rotates. When the trigger is released, the tool stops.
○
The rotational speed of the drill 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.
○
The desired rotation speed can be pre-
selected with the speed control dial.
Turn the speed control dial clockwise for
higher speed and counterclockwise for
lower speed. (Fig. 9)
○
Pulling the trigger and pushing the stopper,
it keeps the switched-on condition which
is convenient for continuous running.
When switching off , the stopper can be
disconnected by pulling the trigger again.
2. Drilling
○
When drilling, start the drill slowly, and gradually increasing speed as you drill.
○
Always apply pressure in a straight line with the bit. Use enough pressure to keep drilling,
but do not push hard enough to stall the motor or defl ect the bit.
○
To minimize stalling or breaking through the material, reduce pressure on drill and ease the
bit through the last part of the hole.
○
If the drill stalls, release the trigger immediately, remove the bit from the work and start
again. Do not click the trigger on and off in an attempt to start a stalled drill. This can
damage the drill.
Fig. 8
Fig. 9
Switch trigger
Low speed
High speed
Speed control dial
Stopper
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○
The larger the drill bit diameter, the larger the reactive force on your arm.
Be careful not to lose control of the drill because of this reactive force.
To maintain fi rm control, establish a good foothold, use side handle, hold the drill tightly
with both hands, and ensure that the drill is vertical to the material being drilled.
○
The drill bit may become overheated during operation; however, it is suffi ciently operable.
Do not cool the drill bit in water or oil.
○
Immediately after use, while it is still revolving, if the Drill is placed on a location where
considerable ground chips and dust have accumulated, dust may occasionally be
absorbed into the drill mechanism. Always pay attention to this undesirable possibility.
MAINTENANCE AND INSPECTION
WARNING
Be sure to switch power OFF and disconnect the plug from the receptacle during
maintenance and inspection.
1. Inspecting the drill bits
Since use of an abraded drill bits will cause motor malfunctioning and degraded effi ciency,
replace the drill bits with a new one or resharpening without delay when abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened. Should
any of the screws be loose, retighten them immediately. Failure to do so could result in
serious hazard.
3. 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.
4. Inspecting the carbon brushes
For your continued safety and electrical shock protection, carbon brush inspection and
replacement on this tool should ONLY be performed by a Hitachi Authorized Service
Center.
5. Replacing supply cord
If the replacement of the supply cord is necessary, it has to be done by Hitachi Authorized
Service Center to avoid a safety hazard.
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Hitachi DV 20V Handling Instructions Manual
- カテゴリー
- パワードリル
- タイプ
- Handling Instructions Manual
他の言語で
- English: Hitachi DV 20V
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