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 mainsoperated (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.
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.
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) Battery tool use and care
a) Recharge only with the charger specifi ed by the
manufacturer.
A charger that is suitable for one type of battery pack
may create a risk of fi re when used with another
battery pack.
b) Use power tools only with specifi cally
designated battery packs.
Use of any other battery packs may create a risk of
injury and fi re.
7
Page 8
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 fi re.
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 qualifi ed
repair person using only identical replacement
parts.
This will ensure that the safety of the power tool is
maintained.
PRECAUTION
Keep children and infi rm persons away.
When not in use, tools should be stored out of reach of
children and infi rm persons.
CORDLESS ROTARY HAMMER
SAFETY WARNINGS
1. Wear ear protectors
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.
Cutting accessory contacting a "live" wire may make
exposed metal parts of the power tool "live" and could
give the operator an electric shock.
ADDITIONAL SAFETY WARNINGS
1. Do not allow foreign matter to enter the hole for
connecting the rechargeable battery.
2. Never disassemble the rechargeable battery and
charger.
3. Never short-circuit the rechargeable battery.
Shortcircuiting the battery will cause a great electric
current and overheat. It results in burn or damage to the
battery.
4. Do not dispose of the battery in fi re. If the battery is burnt,
it may explode.
5. When using this unit continuously, the unit may overheat,
leading to damage in the motor and switch. Please leave
it without using it for approximately 15 minutes.
6. Do not insert object into the air ventilation slots of the
charger. Inserting metal objects or infl ammables into the
charger air ventilation slots will result in electrical shock
hazard or damaged charger.
7. Bring the battery to the shop from which it was purchased
as soon as the post-charging battery life becomes too
short for practical use. Do not dispose of the exhausted
battery.
8. Before starting to break, chip or drill into a wall, fl oor or
ceiling, thoroughly confi rm that such items as electric
cables or conduits are not buried inside.
9. Ensure that the power switch is in the OFF position. If the
battery is installed while the power switch is in the ON
position, the power tool will start operating immediately,
which could cause a serious accident.
10. Do not touch the bit during or immediately after operation.
The bit becomes very hot during operation and could
cause serious burns.
11. Always hold the body handle and side handle of the
power tool fi rmly. Otherwise the counterforce produced
may result in inaccurate and even dangerous operation.
12. Wear a dust mask
Do not inhale the harmful dusts generated in drilling or
chiseling operation. The dust can endanger the health of
yourself and bystanders.
13. Make sure that the battery is installed fi rmly. If it is at all
loose it could come off and cause an accident.
14. To prevent accidents, make sure to turn the switch off
and pull out the battery before changing accessories,
storing, carrying or when not using the tools.
15. Mounting the tool
○ To prevent accidents, make sure to turn the switch off
and pull out the battery.
○ When using tools such as bull points, drill bits, etc.,
make sure to use the genuine parts designated by our
company.
○ Clean the shank portion of the drill bit. Then smear the
shank portion with the grease or machine oil.
○ Check the latching by pulling on the drill bit.
16. Operate the change lever only when the motor is at a
full stop. Operating the change lever while the motor is
running may cause the tip tool to unexpectedly rotate
and result in an accident. (Fig. 8)
17. Rotation + hammering
When the drill bit touches construction iron bar, the bit
will stop immediately and the rotary hammer will react to
revolve. Therefore fi rmly tighten the side handle, hold the
body handle and side handles.
18. 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.
19. 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.
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 a 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.
8
Page 9
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
specifi ed.
7. If the battery charging fails to complete even when a
specifi ed 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 fi re 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 fl uids to fl ow
inside. Conductive liquid ingress, such as water, can
cause damage resulting in fi re or explosion. Store your
battery in a cool, dry place, away from combustible and
fl ammable 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.
3. If you fi nd rust, foul odor, overheating, discolor,
deformation, and/or other irregularities when using the
battery for the fi rst time, do not use and return it to your
supplier or vendor.
WARNING
If a conductive foreign matter enters in the terminal of
lithium ion battery, the battery may be shorted, causing fi re.
When storing the lithium ion battery, obey surely the rules of
following contents.
○ Do not place conductive debris, nail and wires such as
iron wire and copper wire in the storage case.
○ To prevent shorting from occurring, load the battery in
the tool or insert securely the battery cover for storing
until the ventilator is not seen.
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
100Wh are considered to be in the freight classifi cation
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.
○ If the BSL36B18 is installed in the power tool, the power
output will exceed 100 Wh and the unit will be classifi ed
as Dangerous Goods for freight classifi cation.
Power Output
Wh
2 to 3 digit number
USB DEVICE CONNECTION
PRECAUTIONS (UC18YSL3)
When an unexpected problem occurs, the data in a USB
device connected to this product may be corrupted or lost.
Always make sure to back up any data contained in the USB
device prior to use with this product.
Please be aware that our company accepts absolutely no
responsibility for any data stored in a USB device that is
corrupted or lost, nor for any damage that may occur to a
connected device.
WARNING
○ Prior to use, check the connecting USB cable for any
defect or damage.
Using a defective or damaged USB cable can cause
smoke emission or ignition.
○ When the product is not being used, cover the USB port
with the rubber cover.
Buildup of dust etc. in the USB port can cause smoke
emission or ignition.
NOTE
○ There may be an occasional pause during USB
recharging.
○ When a USB device is not being charged, remove the
USB device from the charger.
Failure to do so may not only reduce the battery life
of a USB device, but may also result in unexpected
accidents.
○ It may not be possible to charge some USB devices,
depending on the type of device.
9
Page 10
NAMES OF PARTS (Fig. 1 – Fig. 20)
Switching ON
Drill bit
1
Stopper
2
Selector lever
3
Switch trigger
4
Handle
5
Nameplate
6
RFC indicator lamp
7
Rotation speed
8
selector switch
Display lamp
9
Battery
0
Tail cover
!
Housing
@
Motor
#
Side handle
$
Grip
%
Front cap
^
Stopper lever
&
Latch
*
Charge indicator lamp
(
Remaining battery
)
indicator switch
Remaining battery
q
indicator lamp
Display panel
w
Grease
e
Wing bolt
r
Taper shank adapter
t
Drill bit (Taper shank)
y
Cotter
u
Core bit shank
i
Core bit
o
Guide plate
p
Center pin
a
Core bit tip
s
Battery sliding
d
grooves
Terminal
f
Rubber cover
g
USB port
h
USB cable
j
SYMBOLS
WARNING
The following show symbols used for the machine.
Be sure that you understand their meaning before
use.
Ls
Hs
Switching OFF
Rotation speed selector switch
Display lamp
Low speed / impact rate
High speed / impact rate
Disconnect the battery
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.
Warning
DH36DMA: Cordless Rotary Hammer
To reduce the risk of injury, user must read
instruction manual.
Direct current
VRated voltage
No-load speed
n
0
/minOscillation per minute
BpmFull-load impact rate
φ
max
Drilling diameter, max.
Weight
kg
(According to EPTA-Procedure 01/2003)
Drill bit
Core bit
Adjustment of the tool position function
Hammering only function
Rotation and hammering function
STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package contains the
accessories listed on page 16.
Standard accessories are subject to change without notice.
APPLICATIONS
Rotation and hammering function
○ Drilling anchor holes
○ Drilling holes in concrete
Hammering only function
○ Crushing concrete, chipping, digging, and squaring
(Some applications need optional accessories)
SPECIFICATIONS
The specifi cations of this machine are listed in the Table on
page 16.
4. Disconnect the charger’s power cord from the
receptacle.
5. Hold the charger fi rmly and pull out the battery.
NOTE
Be sure to pull out the battery from the 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 fi rst 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
○ 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 charge indicator lamp of the charger lights
for 0.3 seconds, does not light for 0.3 seconds (off for
0.3 seconds). In such a case, fi rst let the battery cool,
then start charging.
○ When the charge indicator 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.
○ Since the built-in micro computer takes about 3 seconds
to confi rm that the battery being charged with
UC18YSL3 is taken out, wait for a minimum of 3 seconds
before reinserting it to continue charging. If the battery
is reinserted within 3 seconds, the battery may not be
properly charged.
MOUNTING AND OPERATION
ActionFigurePage
Removing and inserting the battery22
Charging32
Remaining battery indicator42
Inserting SDS-max tools53
Removing SDS-max tools63
Changing tool direction73
Selecting the operating mode83
Install the stopper93
Switching on and off 104
Speed change*
1
Using taper shank adapter124
114
Removing taper shank adapter135
Mounting core bit145
Mounting guide plate and center pin155
Cleaning of the battery installation
compartment
Charging a USB device from a
electrical outlet
Charging a USB device and battery
from a electrical outlet
175
18-a6
18-b6
How to recharge USB device196
When charging of USB device is
completed
Selecting accessories*
2
206
―17 – 19
*1 When drilling fragile materials, or when conducting
chipping operations or alignment operations, change the
tool’s rotation speed in accordance with the task by using
the rotation speed selector switch.
NOTE
○ Rotation speed cannot be adjusted until a battery is
installed to the power tool and the switch has been
triggered once.
○ While the tool’s motor is operating, rotation speed cannot
be adjusted by pressing the rotation speed selector
switch.
To adjust rotation speed, switch off the tool. Once the
motor has stopped, press the rotation speed selector
switch to adjust the speed.
*2 For detailed information regarding each tool, contact a
HiKOKI authorized service center.
Operate this Rotary Hammer by utilizing its own weight. The
performance will not be better even if it is pressed or thrust
forcibly against the work surface.
Hold this Rotary Hammer with a force just suffi cient to
counteract the reaction.
CAUTION
After long time of use, the cylinder case becomes hot.
Therefore, be careful not to burn your hands.
Warming up (Fig. 16)
The grease lubrication system in this unit may require
warming up in cold regions.
Position the end of the bit so makes contact with the
concrete, turn on the switch and perform the warming
up operation. Make sure that a hitting sound is produced
and then use the unit.
CAUTION
When the warming up operation is performed, hold the
side handle and the main body securely with both hands
to maintain a secure grip and be careful not to twist your
body by the jammed drill bit.
12
Page 13
ABOUT THE PROTECTION
FUNCTIONS
This product features functions that are designed to protect
the tool itself as well as the battery. While the switch is
pulled, if any of the safeguard functions are triggered
during operation, the display lamp will blink as described in
Table 3. When any of the safeguard functions are triggered,
immediately remove your fi nger from the switch and follow
the instructions described under corrective action.
Table 3
Display
lamp
fl ashing
Flash
Flash
Flash
CauseSolution
Internal temperature
has risen beyond
the unit’s specifi ed
temperature.
(Temperature
increase protection
function)
Excessive pressure
applied to the tool
has resulted in an
overload.
(Overload
protection function)
Sensor signal read
error.
(Control monitoring
function)
Turn off the unit and
allow it to cool down
for about 15 minutes.
When the temperature
goes down, the unit is
ready for use.
Remove the cause of
the overburdening.
Repair may be
required.
REACTIVE FORCE CONTROL
This product is equipped with a Reactive Force Control
(RFC) feature that reduces jerking of the tool body.
If the tool bit is suddenly overburdened, any jerking of the
tool body is reduced by activation of the slip clutch or by
stopping of the motor by the sensor built into the tool body.
If the motor is stopped because of overburdening detection
by the controller, the RFC indicator lamp will blink while the
switch is pulled. In addition, the lamp will continue blinking
for approximately three seconds after the switch is released.
The motor will remain stopped while the lamp is blinking.
(Fig. 21)
Because the RFC feature may not activate or its performance
may be insuffi cient depending on the working environment
and conditions, be careful not to suddenly overburden the
tool bit while operating.
● Possible causes of sudden overburdening
1 Tool bit biting into material
2 Impact against nails, metal or other hard objects
3 Tasks involving prying or any excess application of
pressure, etc.
Also, other causes include any combination of the
aforementioned.
● When the reactive force control (RFC) is triggered
When the RFC is triggered and the motor stops, turn
off the tool’s switch and remove the cause of the
overburdening before continuing operation.
Fig. 21
GREASE REPLACEMENT
This Rotary Hammer is of full air-tight construction to protect
against dust and to prevent lubricant leakage.
Therefore, this Rotary Hammer can be used without
lubrication for long periods. Replace the grease as described
below.
Grease Replacement Period
After purchase, replace grease after every 6 months of
usage. Ask for grease replacement at the nearest authorized
Service Center.
MAINTENANCE AND INSPECTION
CAUTION
Be sure to turned off the switch and remove the battery
before maintenance and inspection.
1. Inspecting the tool
Since use of as dull tool will degrade effi ciency and
cause possible motor malfunction, sharpen or replace
the tool as soon as 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. 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.
5. Cleaning on the outside
When the power tool is stained, wipe with a soft dry cloth
or a cloth moistened with soapy water. Do not use chloric
solvents, gasoline or paint thinner, for they melt plastics.
6. Cleaning of the battery installation compartment
After drilling concrete, if concrete dust has accumulated
on the terminals or the area where the battery slides
within the battery installation compartment, clean off the
accumulated concrete dust with a dry cloth before using
the tool. (Fig. 17)
Also, after cleaning, ensure that the battery can be
installed and removed smoothly from the tool.
13
Page 14
CAUTION
Using the tool when the battery is covered with concrete
dust may lead to accidents such as the battery falling
during use.
Furthermore, such use may cause a malfunction or
contact failure between the battery and the terminals.
7. Storage
Store the power tool in a place in which the temperature
is less than 40°C and out of 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,
signifi cantly reducing battery usage time or rendering
the batteries incapable of holding a charge.
However, signifi cantly reduced battery usage time may
be recovered by repeatedly charging and using the
batteries two to fi ve times.
If the battery usage time is extremely short despite
repeated charging and use, consider the batteries dead
and purchase new batteries.
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 HiKOKI
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 modifi ed (such as
disassembly and replacement of cells or other internal
parts).
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.
TROUBLESHOOTING
Use the inspections in the table below if the tool does not operate normally. If this does not remedy the problem, consult your
dealer or the HiKOKI Authorized Service Center.
1. Power tool
SymptomPossible causeRemedy
Tool doesn’t runNo remaining battery powerCharge the battery.
Battery isn’t securely attached.Push in the battery until a click is heard.
Concrete dust has accumulated on
the terminals of the battery installation
compartment as well as on the battery
sliding grooves.
The battery was attached while the switch
trigger was ON.
Tool suddenly stoppedTool was overburdenedGet rid of the problem causing the
Reactive force control was activated
The battery is overheated.Let the battery cool down.
Tool bits
-can’t be attached
-fall off
Holes can’t be smoothly
drilled.
Battery cannot be installed. Attempting to install a battery other than that
The shape of the attachment portion doesn’t
match
The drill is wornReplace with a new drill.
specifi ed for the tool.
Clean off the accumulated concrete dust
with a dry cloth.
Attach the battery when the switch trigger
is OFF.
overburden.
For the SDS-max shank type, use a bit with
a diameter that is within the designated
range.
Please install a multi volt type battery.
14
Page 15
2. Charger
SymptomPossible causeRemedy
The charge indicator lamp
rapidly fl ickers purple, and
battery charging doesn’t
begin.
The charge indicator lamp
blinks red, and battery
charging doesn’t begin.
Battery usage time is short
even though the battery is
fully charged.
The battery takes a long
time to charge.
The USB power lamp
has switched off and the
USB device has stopped
charging.
USB power lamp does not
switch off even though the
USB device has fi nished
charging.
It is unclear what the
charging status of a USB
device is, or whether its
charging is complete.
Charging of a USB device
pauses midway.
Charging of the USB device
pauses midway when the
battery and the USB device
are being charged at the
same time.
Charging of the USB device
doesn’t start when the
battery and the USB device
are being charged at the
same time.
The battery is not inserted all the way.Insert the battery fi rmly.
There is foreign matter in the battery
Remove the foreign matter.
terminal or where the battery is attached.
The battery is not inserted all the way.Insert the battery fi rmly.
The battery is overheated.If left alone, the battery will automatically
begin charging if its temperature decreases,
but this may reduce battery life. It is
recommended that the battery be cooled in
a well-ventilated location away from direct
sunlight before charging it.
The battery’s life is depleted.Replace the battery with a new one.
The temperature of the battery, the charger,
or the surrounding environment is extremely
Charge the battery indoors or in another
warmer environment.
low.
The charger’s vents are blocked, causing its
Avoid blocking the vents.
internal components to overheat.
The cooling fan is not running.Contact a HiKOKI Authorized Service
Center for repairs.
The battery’s capacity has become low.Replace the battery with one that has
capacity remaining.
Plug the charger’s power plug into an
electric socket.
The USB power lamp lights up green to
This is not a malfunction.
indicate that USB charging is possible.
The USB power lamp does not switch off
even when charging is complete.
The charger was plugged into an electrical
socket while the USB device was being
charged using the battery as the power
source.
Examine the USB device that is charging to
confi rm its charging status.
This is not a malfunction.
The charger pauses USB charging for about
5 seconds when it is diff erentiating between
power sources.
A battery was inserted into the charger while
the USB device was being charged using a
power socket as the power source.
The battery has become fully charged.This is not a malfunction.
The charger pauses USB charging for
about 5 seconds while it checks whether
the battery has successfully completed
charging.
The remaining battery capacity is extremely
low.
This is not a malfunction.
When the battery capacity reaches a certain
level, USB charging automatically begins.
15
Page 16
V
36V
n
0
Bpm
φ
max
φ
max
kg
BSL36B18
260 – 590 /min
1420 – 2860 /min
40 mm
105 mm
7.9 kg
DH36DMA
(2WC)(NNK)
2―
1―
UC18YSL3
2―
11
11
11
11
16
Page 17
BSL36B18
329897
30g: 981840
UC18YSL3 (14.4V – 18V)
337577
330209
949556
949859
331246
331247
371135
971786
17
Page 18
D
956009 (D < 35)
955165 (D > 38)
300 mm : 313466 (D < 35)
313467 (D > 38)
944477
313465
321813 313468
930515
12.7 mm : 313469
19.0 mm : 313470
18
Page 19
400 mm : 313472
400 mm : 313474
W50 × 400 mm : 313475
400 mm : 313476
150 mm
313477
313478
320859
313479
318085
19
Page 20
Shinagawa Intercity Tower A, 15-1, Konan 2-chome,
Minato-ku, Tokyo, Japan
Code No. C99724711 G
806
Printed in China
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