CD1805DB
en Handling instructions
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English
8
GENERAL POWER TOOL SAFETY
WARNINGS
WARNING
Read all safety warnings, instructions, illustrations
and specifications provided with this power tool.
Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated
(cordless) power tool.
1) Work area safety
a) Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust.
Power tools create sparks which may ignite the dust
or fumes.
c) Keep children and bystanders away while
operating a power tool.
Distractions can cause you to lose control.
2) Electrical safety
a) Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools.
Unmodified plugs and matching outlets will reduce
risk of electric shock.
b) Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators.
There is an increased risk of electric shock if your
body is earthed or grounded.
c) Do not expose power tools to rain or wet
conditions.
Water entering a power tool will increase the risk of
electric shock.
d) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts.
Damaged or entangled cords increase the risk of
electric shock.
e) When operating a power tool outdoors, use an
extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces the
risk of electric shock.
f) If operating a power tool in a damp location is
unavoidable, use a residual current device
(RCD) protected supply.
Use of an RCD reduces the risk of electric shock.
3) Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are 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 personal protective equipment. Always
wear eye protection.
Protective equipment such as a dust mask, non-skid
safety shoes, hard hat or hearing protection used for
appropriate conditions will reduce personal injuries.
c) Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool.
Carrying power tools with your finger on the switch
or energising power tools that have the switch on
invites accidents.
d) Remove any adjusting key or wrench before
turning the power tool on.
A wrench or a key left attached to a 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 and clothing 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.
h) Do not let familiarity gained from frequent use
of tools allow you to become complacent and
ignore tool safety principles.
A careless action can cause severe injury within a
fraction of a second.
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 remove the battery pack, if detachable,
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 and accessories. Check
for misalignment or binding of moving parts,
breakage of parts and any other condition that
may affect 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 different from
those intended could result in a hazardous situation.
h) Keep handles and grasping surfaces dry, clean
and free from oil and grease.
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Slippery handles and grasping surfaces do not allow
for safe handling and control of the tool in
unexpected situations.
5) Battery tool use and care
a) Recharge only with the charger specified by the
manufacturer.
A charger that is suitable for one type of battery
pack may create a risk of fire when used with
another battery pack.
b) Use power tools only with specifically
designated battery packs.
Use of any other battery packs may create a risk of
injury and fire.
c) When battery pack is not in use, keep it away
from other metal objects, like paper clips,
coins, keys, nails, screws or other small metal
objects, that can make a connection from one
terminal to another.
Shorting the battery terminals together may cause
burns or a fire.
d) Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If
contact accidentally occurs, flush with water. If
liquid contacts eyes, additionally seek medical
help.
Liquid ejected from the battery may cause irritation
or burns.
e) Do not use a battery pack or tool that is
damaged or modified.
Damaged or modified batteries may exhibit
unpredictable behaviour resulting in fire, explosion
or risk of injury.
f) Do not expose a battery pack or tool to fire or
excessive temperature.
Exposure to fire or temperature above 130°C may
cause explosion.
g) Follow all charging instructions and do not
charge the battery pack or tool outside the
temperature range specified in the instructions.
Charging improperly or at temperatures outside the
specified range may damage the battery and
increase the risk of fire.
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.
b) Never service damaged battery packs.
Service of battery packs should only be performed
by the manufacturer or authorized service providers.
PRECAUTION
Keep children and infirm persons away.
When not in use, tools should be stored out of reach
of children and infirm persons.
CORDLESS METAL CUTTING SAW
SAFETY WARNINGS
Cutting procedures
a) DANGER: Keep hands away from cutting area
and the blade.
If both hands are holding the saw, they cannot be cut by
the blade.
b) Do not reach underneath the workpiece.
The guard cannot protect you from the blade below the
workpiece.
c) Adjust the cutting depth to the thickness of the
workpiece.
Less than a full tooth of the blade teeth should be visible
below the workpiece.
d) Never hold the workpiece in your hands or across
your leg while cutting. Secure the workpiece to a
stable platform.
It is important to support the work properly to minimize
body exposure, blade binding, or loss of control.
e) Hold the power tool by insulated gripping
surfaces, when performing an operation where the
cutting tool may contact hidden wiring.
Contact with a “live” wire will also make exposed metal
parts of the power tool “live” and could give the operator
an electric shock.
f) When ripping, always use a rip fence or straight
edge guide.
This improves the accuracy of cut and reduces the
chance of blade binding.
g) Always use blades with correct size and shape
(diamond versus round) of arbour holes.
Blades that do not match the mounting hardware of the
saw will run off-centre, causing loss of control.
h) Never use damaged or incorrect blade washers or
bolt.
The blade washers and bolt were specially designed for
your saw, for optimum performance and safety of
operation.
Kickback causes and related warnings
– kickback is a sudden reaction to a pinched, jammed or
misaligned saw blade, causing an uncontrolled saw to
lift up and out of the workpiece toward the operator;
– when the blade is pinched or jammed tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
– if the blade becomes twisted or misaligned in the cut,
the teeth at the back edge of the blade can dig into the
top surface of the steel materials causing the blade to
climb out of the kerf and jump back toward the operator.
Kickback is the result of saw misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
a) Maintain a firm grip on the saw and position your
arms to resist kickback forces. Position your body
to either side of the blade, but not in line with the
blade.
Kickback could cause the saw to jump backwards, but
kickback forces can be controlled by the operator, if
proper precautions are taken.
b) When blade is binding, or when interrupting a cut
for any reason, release the trigger and hold the
saw motionless in the material until the blade
comes to a complete stop.
Never attempt to remove the saw from the work or
pull the saw backward while the blade is in motion
or kickback may occur.
Investigate and take corrective actions to eliminate the
cause of blade binding.
c) When restarting a saw in the workpiece, centre the
saw blade in the kerf so that the saw teeth are not
engaged into the material.
If a saw blade binds, it may walk up or kickback from
the workpiece as the saw is restarted.
d) Support large panels to minimise the risk of blade
pinching and kickback.
Large panels tend to sag under their own weight.
Supports must be placed under the panel on both
sides, near the line of cut and near the edge of the
panel.
e) Do not use dull or damaged blades.
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Unsharpened or improperly set blades produce narrow
kerf causing excessive friction, blade binding and
kickback.
f) Blade depth and bevel adjusting locking levers
must be tight and secure before making the cut.
If blade adjustment shifts while cutting, it may cause
binding and kickback.
g) Use extra caution when sawing into existing walls
or other blind areas.
The protruding blade may cut objects that can cause
kickback.
Lower guard function
a) Check the lower guard for proper closing before
each use. Do not operate the saw if the lower
guard does not move freely and close instantly.
Never clamp or tie the lower guard into the open
position.
If the saw is accidentally dropped, the lower guard may
be bent.
Raise the lower guard with the retracting handle and
make sure it moves freely and does not touch the blade
or any other part, in all angles and depths of cut.
b) Check the operation of the lower guard spring. If
the guard and the spring are not operating
properly, they must be serviced before use.
Lower guard may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of debris.
c) The lower guard may be retracted manually only
for special cuts such as “plunge cuts” and
“compound cuts”. Raise the lower guard by the
retracting handle and as soon as the blade enters
the material, the lower guard must be released.
For all other sawing, the lower guard should operate
automatically.
d) Always observe that the lower guard is covering
the blade before placing the saw down on bench
or floor.
An unprotected, coasting blade will cause the saw to
walk backwards, cutting whatever is in its path. Be
aware of the time it takes for the blade to stop after
switch is released.
ADDITIONAL SAFETY WARNINGS
1. Wear earplugs to protect your ears during operation.
2. Use only blade diameter specified on the machine.
3. Do not use any abrasive wheel.
4. Do not use saw blades which are deformed or cracked.
5. Do not use saw blades made of high speed steel.
6. Do not use saw blades which do not comply with the
characteristics specified in these instructions.
7. Do not stop the saw blades by lateral pressure on the
disc.
8. Always keep the saw blades sharp.
9. Ensure that the lower guard moves smoothly and freely.
10. Never use the circular saw with its lower guard fixed in
the open position.
11. Ensure that the retraction mechanism of the guard
system operates correctly.
12. Never operate the circular saw with the saw blade
turned upward or to the side.
13. Ensure that the material is free of foreign matters such
as nails.
14. The saw blades shall be 135mm.
15. Pull out battery before carrying out any adjustment,
servicing or maintenance.
16. Be careful of brake kickback.
This circular saw features an electric brake that
functions when the switch is released. As there is some
kickback when the brake functions, be sure to hold the
main body securely.
17. Ensure that the switch is in the OFF position. If the
battery installed to power tool while the switch is in the
ON position, the power tool will start operating
immediately, which could cause a serious accident.
18. Avoid cutting in the state where the base has floated up
from the material.
When blade is binding, or when interrupting a cut for
any reason, release the trigger and hold the saw
motionless in the material until the blade comes to a
complete stop. Never attempt to remove the saw from
the work or pull the saw backward while the blade is in
motion or KICKBACK may occur. Investigate and take
corrective actions to eliminate the cause of blade
binding.
19. Support large panels to minimize the risk of blade
pinching and KICKBACK. Large panels tend to sag
under their own weight (Fig.3). Supports must be
placed under the panel on both sides, near the line of
cut and near the edge of the panel as shown in Fig.2.
To minimize the risk of blade pinching and kickback.
When cutting operation requires the resting of the saw
on the work piece, the saw shall be rested on the larger
portion and the smaller piece cut off.
20. Use extra caution when making a “Pocket Cut” into
existing walls or other blind areas. The protruding blade
may cut objects that can cause KICKBACK.
NEVER place your hand or fingers behind the saw
(Fig.4). If kickback occurs, the saw could easily jump
backwards over your hand, possibly causing severe
injury.
21. WARNING: It is important to support the work piece
properly and to hold the saw firmly to prevent loss of
control which could cause personal injury. Fig.5
illustrates typical hand support of the saw.
22. Place the wider portion of the saw base on that part of
the work piece which is solidly supported, not on the
section that will fall off when the cut is made. As
examples, Fig.6 illustrates the RIGHT way to cut off the
end of board, and Fig.7 the WRONG way. If the work
piece is short or small, clamp it down. DON’T TRY TO
HOLD SHORT PLACES BY HAND!
23. Never attempt to saw with the circular saw held upside
down in a vise.
This is extremely dangerous and can lead to serious
accidents. (Fig.8)
24. Should lever remain loosened, it will create a very
hazardous situation. Always thoroughly clamp it.
(Fig.9)
25. Prior to cutting operation, make sure the material you
are going to cut. If the material to be cut is expected to
generate harmful / toxic dusts, make sure the dust bag
or appropriate dust extraction system is connected with
dust outlet tightly.
Wear the dust mask additionally, if available.
○ Before starting to saw, confirm that the saw blade has
attained full-speed revolution.
○ Should the saw blade stop or make an abnormal noise
while operating, promptly turn OFF the switch.
○ Using the circular saw with the saw blade facing
upwards or sideways is very hazardous. Such
uncommon applications should be avoided.
○ When cutting materials, always wear protective
glasses.
○ When finished with a job, pull out the battery.
26. After having attached the saw blade, reconfirm that the
lock lever is firmly secured in the prescribed position.
27. Use a saw blade that suits each different cutting
material.
28. Use a saw blade with a displayed speed that is equal to
or higher than the rotation speed displayed on the tool.
○ Use this tool only for cutting metal.
○ Cannot be used for cutting tempered steel materials.
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29. Do not give a strong shock to the switch panel or break
it. It may lead to a trouble.
30. Do not look directly into the light. Such actions could
result in eye injury.
Wipe off any dirt or grime attached to the lens of the
LED light with a soft cloth, being careful not to scratch
the lens.
Scratches on the lens of the LED light can result in
decreased brightness.
31. Do not allow foreign matter to enter the hole for
connecting the rechargeable battery.
32. Never disassemble the rechargeable battery and
charger.
33. Never short-circuit the rechargeable battery. Short-
circuiting the battery will cause a great electric current
and overheat. It results in burn or damage to the
battery.
34. Do not dispose of the battery in fire. If the battery is
burnt, it may explode.
35. 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.
36. Do not insert objects into the air ventilation slots of the
charger.
Inserting metal objects or inflammables into the charger
air ventilation slots will result in electrical shock hazard
or a damaged charger.
37. Make sure that the battery is installed firmly. If it is at all
loose it could come off and cause an accident.
38. 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.
39. 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.
40. Always use the tool and battery at temperatures
between -5°C and 40°C.
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.
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 for a purpose other than those
specified.
5. If the battery charging fails to complete even when a
specified recharging time has elapsed, immediately
stop further recharging.
6. Do not put or subject the battery to high temperatures or
high pressure such as into a microwave oven, dryer, or
high pressure container.
7. Keep away from fire immediately when leakage or foul
odor are detected.
8. Do not use in a location where strong static electricity
generates.
9. 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.
10. Do not immerse the battery or allow any fluids to flow
inside. Conductive liquid ingress, such as water, can
cause damage resulting in fire or explosion. Store your
battery in a cool, dry place, away from combustible and
flammable items. Corrosive gas atmospheres must be
avoided.
11. Do not give a strong shock to the display panel or break
it. It may lead to a trouble.
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 find rust, foul odor, overheating, discolor,
deformation, and/or other irregularities when using the
battery for the first time, do not use and return it to your
supplier or vendor.
WARNING
If a conductive foreign matter enters in the terminal of
lithium ion battery, the battery may be shorted, causing fire.
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.
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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 classification
of Dangerous Goods and will require special application
procedures.
○ For transportation abroad, you must comply with
international law and the rules and regulations of the
destination country.
Wh
Power Output
2 to 3 digit number
NAMES OF PARTS
The numbers in the list below correspond to Fig.1–Fig.22.
1Switch
2Switch lock
3Cutting depth lever
4Name plate
5Lower guard
6Bolt
7Washer (B)
8Saw blade
9Guide slit on the Base
10 Base
11 Lock lever
12 Motor
13 LED light
14 Battery
15 Hex. bar wrench
16 Handle
17 Sub handle
18 Mode selector switch
19 Silent mode indicator lamp
20 Lighting mode switch
21 Lighting mode indicator lamp
22 Remaining battery indicator lamp
23 Switch panel
24 Push button
25 Mark
26 Dust box
27 Lock spring
28 Guide fastener wing-bolt (B)
29 Guide
30 Latch
31 Pilot lamp
32 Dust cover
33 Saw cover
34 Gear cover
35 Hook (Dust box)
36 Washer (A)
37 Battery level indicator switch
38 Battery level indicator lamp
39 Display panel
40 Hook (Dust cover)
SYMBOLS
WARNING
The following show symbols used for the machine.
Be sure that you understand their meaning before
use.
CD1805DB: Cordless Metal Cutting Saw
To reduce the risk of injury, user must read
instruction manual.
Always wear eye protection.
Always wear hearing protection.
V
Rated voltage
n0
No-load speed
Switching ON
0
Switching OFF
Disconnect the battery
Prohibited action
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Mode selector switch
Lighting mode switch
The battery remaining power is nearly empty.
Recharge the battery soonest possible
LED: Red
The battery remaining power is a half.
LED: Red
The battery remaining power is enough.
LED: Green
Always ON (turn off after 2 minute)
LED: Green
Light only SW-ON
Always OFF
Warning
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.
NOTE
To prevent the battery power consumption caused by
forgetting to turn off the LED light, the light goes off
automatically in about 2minutes.
STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package contains
the accessories listed on page79.
Standard accessories are subject to change without notice.
APPLICATIONS
○ For cutting various types of soft steel materials such as
steel pipe, steel channels (“C” channels, “L” angles etc.)
and aluminum sash.
– It is possible to cut aluminum. However, when doing
so, apply cutting oil to the edge of the blade.
CAUTION
○ Cannot be used for cutting tempered steel materials.
○ Do not consecutively cut metal plates.
SPECIFICATIONS
1. Power tool
Model CD1805DB
Voltage 18 V
No-load speed 4200 /min (Power mode)
2200 /min (Silent mode)
Capacity Cutting
depth 90°
51mm
(Saw blade ø135mm)
57.5mm
(Saw blade ø150mm)
Battery available for this
tool
Multi volt battery,
BSL18Series
Weight 3.0 kg (BSL1850MA)
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
Electronic control
○ Soft-start
○ Overload protection
This protection feature cuts off the power to the motor in
the event of overloading of motor or a conspicuous
reduction in rotational speed during operation.
When the overload protection feature has been
activated, the motor may stop.
In this case, release the tool switch and eliminate
causes of overloading.
After that you can use it again.
○ Overheat protection
This protection feature cuts off the power to the motor
and stops the power tool in the event of overheating of
motor during operation.
When the overheat protection feature has been
activated, the motor may stop.
In this case, release the tool switch and cool it down in a
few minutes.
After that you can use it again.
○ Rotation speed changeover function (Power mode /
Silent mode)
(Power mode / Silent mode switch function)
Each press of the Mode Selector Switch changes the
operating mode. (Fig.12)
Silent mode reduces maximum motor RPM enabling
efficient work with less noise.
The Silent Mode Indicator Lamp lights in Silent mode.
When the load increases during Silent mode, the tool
will automatically switch to Power mode and revert back
to Silent mode when the load decreases.
In Power mode, no change is made to Silent mode even
when the load decreases.
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CAUTION
Do not give a strong shock to the switch panel or break
it. It may lead to a trouble.
NOTE
To enable mode changes, pull the switch once after
installing the battery.
2. Battery
Model Voltage Battery capacity
BSL1850MA 18 V 5.0 Ah
CHARGING
Before using the power tool, charge the battery as follows.
<UC18YFSL>
1. Connect the charger’s power cord to the
receptacle.
When connecting the plug of the charger to a
receptacle, the pilot lamp will blink in red. (See Table1)
2. Insert the battery into the charger.
Firmly insert the battery into the charger as shown in
Fig.18 (on page 5).
3. Charging
When inserting a battery in the charger, charging will
commence and the pilot lamp will light continuously in
red.
When the battery becomes fully recharged, the pilot
lamp will blink in red. (See Table1)
(1) Pilot lamp indication
The indications of the pilot lamp will be as shown in
Table1, according to the condition of the charger or the
rechargeable battery.
Table 1: Indications of the pilot lamp
ON/OFF at 0.5sec. intervals Before charging *1
or
Charging complete
Lights continuously While charging
Lights for 1sec. at intervals of
0.5sec. Overheat standby *2
ON/OFF at 0.1sec. intervals Charging impossible
*3
NOTE
*1 If the red lamp continues to blink even after the charger
has been attached, check to confirm that the battery
has been fully inserted.
*2 Battery overheated. Unable to charge.
Although charging will start once the battery has cooled
down even when left in situ, the best practice is to
remove the battery and allow it to cool down in a
shaded, well-ventilated location before charging.
*3 Malfunction in the battery or the charger
– Fully insert the battery.
– Check to confirm that no foreign matter is stuck to
the battery mount or terminals. If there are no
foreign objects, it is probable that the battery or
charger is malfunctioning. Take it to your authorized
Service Center.
○ If the pilot lamp does not blink in red even though the
charger cord is connected to the power, it indicates that
the protection circuit of the charger may be activated.
Remove the cord or plug from the power and then
connect it again after 5minutes or so. If this does not
cause the pilot lamp to blink in red, please take the
charger to the HiKOKI Authorized Service Center.
○ 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 15minutes rest until the next charging.
(2) Regarding the temperatures and charging time of the
battery. (See Table2)
Table 2
Model UC18YFSL
Type of battery Li-ion
Charging voltage 14.4–18 V
Temperatures at which the
battery can be recharged 0°C–50°C
Charging time for
battery capacity,
approx. (At 20°C)
1.5Ah 22min
2.0Ah 30min
2.5Ah 35min
3.0Ah 45min
4.0Ah 60min
5.0Ah 75min
6.0Ah 90min
Charging time for
multi volt battery
capacity, approx.
(At 20°C)
1.5Ah
(×2unit) 45min
2.5Ah
(×2unit) 75min
4.0Ah
(×2unit) 120min
Number of battery cells 4–10
Weight 0.5kg
NOTE
○ The recharging time may vary according to the ambient
temperature and power source voltage.
○ If charging takes a long time
– Charging will take longer at extremely low ambient
temperatures. Charge the battery in a warm location
(such as indoors).
– Do not block the air vent. Otherwise the interior will
overheat, reducing the charger's performance.
– If the cooling fan is not operating, contact a HiKOKI
Authorized Service Center for repairs.
4. Disconnect the charger’s power cord from the
receptacle.
5. Hold the charger firmly 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
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using them the first and second time. This is a temporary
phenomenon, and normal time required for recharging will
be restored by recharging the batteries 2–3 times.
How to make the batteries perform longer.
(1) Recharge the batteries before they become completely
exhausted. When you feel that the power of the tool
becomes weaker, stop using the tool and recharge its
battery. If you continue to use the tool and exhaust the
electric current, the battery may be damaged and its life
will become shorter.
(2) Avoid recharging at high temperatures. A rechargeable
battery will be hot immediately after use. If such a
battery is recharged immediately after use, its internal
chemical substance will deteriorate, and the battery life
will be shortened. Leave the battery and recharge it
after it has cooled for a while.
MOUNTING AND OPERATION
Action Figure Page
Adjusting the cutting depth 9 3
Cutting line 10 3
Switch operation 11 4
About the mode select function*112 4
Remaining battery indicator (on tool
body)*213 4
Remaining battery indicator (on
battery) 14 4
Using the LED light 15 4
Attaching the guide (sold separately) 16 4
Removing and inserting the battery 17 5
Charging 18 5
Dismounting the saw blade*319 6
Mounting the saw blade*320 7
Selecting accessories — 80
*1 About the mode select function
Each time the mode selector switch is pushed, the
operation mode changes.
When Silent mode is selected, the Silent mode indicator
lamp lights up.
Silent mode reduces maximum motor RPM enabling
efficient work with less noise.
If the load increases while the motor is operating in
Silent mode, it automatically changes to Power mode.
Additionally, if the load decreases again, it
automatically returns to Silent mode.
With power mode, the protection function activates to
reduce the number of revolutions whenever the unit is
continuously burdened with a heavy load.
Mode No-load speed
Power 4200 /min
Silent 2200 /min
NOTE
○ The mode will only change after a battery is installed
and the switch is pulled once.
○ The current mode will be maintained even if the switch
is on/off, or the battery is removed/reinserted.
*2 Remaining battery indicator (on tool body)
When using a battery with a remaining battery indicator,
please refer to the indicator lamp on the battery for the
battery remaining power.
*3 Dismounting the saw blade
Mounting the saw blade
WARNING
Use the Hex, bar wrench 5mm that is supplied with the
power tool. Do not use other tools as this may result in
over-tightening or insufficient tightening of the
Hexagonal flange bolt that holds the blade in place
causing accidents.
CAUTION
Never touch the saw blade immediately after use. The
metal is hot and can easily burn your skin.
LED LIGHT WARNING SIGNALS
This product features functions that are designed to protect
the tool itself as well as the battery. If any of the safeguard
functions are triggered during operation, the LED light will
blink as described in Table3.
When any of the safeguard functions are triggered, follow
the instructions described under corrective action.
Table 3
LED Light Display Safeguard Function
On 0.1second/off
0.1second
Overload Protection
Remove the cause of the
overburdening.
On 0.5 second/
Off 0.5second
Overheat protection
Allow the tool and battery to
thoroughly cool.
DISPOSING CHIPS
WARNING
When disposing chips, make sure that the tool is
switched off and that the battery is removed.
CAUTION
Dispose of the chips that are in the dust box before they
accumulate above the marks. (Fig.21)
Failure to do so will reduce the efficiency of the dust
collecting. Additionally, the heat of the chips may
deforme the dust box.
NOTE
○ Immediately after cutting steel materials, the chips and
the dust box may be hot. Do not touch them directly.
○ When disposing the chips, be careful not to spill the
chips into the motor or the battery mount.
○ Before changing the material to cut, dispose of the
chips that are in the dust box.
(1) Press the hook below the dust cover, open the dust
cover and dispose the chips inside the dust box.
(Fig.22)
(2) Close the dust cover and secure it with the hook.
MAINTENANCE AND INSPECTION
WARNING
○ Be sure to turn off the switch and remove the battery
before maintenance and inspection.
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○ Before storing the tool body, throw away the chips in the
dust box, and clean the inside of the dust box and
storage case. Also, attach the battery cover to the
battery when removing and storing it.
1. Inspecting the saw blade
Since use of as dull saw blade will degrade efficiency
and cause possible motor malfunction, sharpen or
replace the saw blade 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. Motor unit maintenance
The motor winding is an important part of this tool.
Avoid damaging and be careful to avoid contact with
cleaning oil or water.
Dust or particle accumulation in the motor can result in
damage.
NOTE
Accumulation of dust and the like inside the motor can
result in a malfunction.
After using the motor for 50hours or so, carry out no-
load running, and blow in the dry air from a wind hole at
the motor's rear. Such action is effective to discharge
dust and the like.
4. Inspecting and maintaining the lower guard
Always make sure that the lower guard moves
smoothly. In the event of any malfunction, immediately
repair the lower guard.
5. 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.
6. 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.
7. Storage
Store the power tool and battery 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,
significantly reducing battery usage time or rendering
the batteries incapable of holding a charge.
However, significantly reduced battery usage time may
be recovered by repeatedly charging and using the
batteries two to five times.
If the battery usage time is extremely short despite
repeated charging and use, consider the batteries dead
and purchase new batteries.
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 modified (such as
disassembly and replacement of cells or other internal
parts).
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
OPTIONAL ACCESSORIES (sold separately)
Carbide tipped saw blade
Blade External
diameter Hole diameter Number of teeth Code No.
Standard
accessories
For cutting soft steel
materials
135mm 20mm 30teeth 380927
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.
Symptom Possible cause Remedy
Tool doesn’t run No remaining battery power Charge the battery.
Battery isn’t fully installed. Push the battery in until you hear a
click.
Tool suddenly stopped Motor is overloaded Get rid of the problem causing the
overloaded.
Overload protection is in operation.
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Symptom Possible cause Remedy
Tool suddenly stopped The battery or power tool has
become overheated.
Let the battery or power tool cool
down.
Doesn’t cut well The saw blade is worn or missing
teeth.
Replace with a new saw blade.
The bolt is loose. Firmly tighten the bolt.
The saw blade is installed
backwards.
Install the saw blade in the proper
direction.
Switch can’t be pulled The switch lock is not pushed in
enough.
Push the switch lock in all the way.
Sawdust discharge is poor Sawdust has accumulated in the dust
box.
Remove the sawdust inside the dust
box.
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一般安全規則
警告
閱讀所有安全警告說明
未遵守警告與說明可能導致電擊、火災或其他嚴重
傷害。
請妥善保存本使用說明書，以供未來參考之用。
「電動工具」一詞在警告中，係指電源操作（有
線）之電動工具或電池操作（無線）之電動工具。
1) 工作場所安全
a) 保持工作場所清潔及明亮。
雜亂或昏暗的區域容易發生意外。
b) 勿在易產生爆炸之環境中操作，譬如有易燃液
體、瓦斯或粉塵存在之處。
電動工具產生火花會引燃粉塵或煙氣。
c) 當操作電動工具時，確保兒童及過往人員遠
離。
分神會讓您失去控制。
2) 電氣安全
a) 電動工具插頭必須與插座配合，絕不可以任何
方法修改插頭，且不得使用任何轉接插頭於有
接地之電動工具。
不修改插頭及所結合之插座，可減少電擊。
b) 避免身體接觸到地面，諸如管子、散熱器、爐
灶及冰箱。
如果您的身體接地或觸地，會增加電擊的危
險。
c) 勿讓電動工具淋雨或曝露在潮濕的環境下。
電動工具進水會增加電繫的危險。
d) 勿濫用電源線。請勿使用電源線去纏繞、拖拉
電動工具或拔插頭，保持電源線遠離熱氣、油
氣、尖角或可動零件。
損壞或纏繞的電源線會增加電繫之危險。
e) 電動工具在室外操作時，請務必要使用適合室
外用的延長線。
使用合適之室外用延長線會減少電擊的危險。
f) 若無法避免在潮濕地區操作電動工具，請使用
以漏電斷路器 (RCD) 來保護電源。
使用 RCD， 可降低觸電危險。
3) 人員安全
a) 保持機警，注意您正在做什麼，並運用正確常
識操作電動工具。當你感到疲勞或受藥品、酒
精或醫療影響時，請勿操作電動工具。
操作中瞬間的不注意，可能造成人員嚴重的傷
害。
b) 使用個人防護裝備，經常配戴安全眼鏡。
配戴防塵口罩、防滑安全鞋、硬帽等防護裝
備，或在適當情況下使用聽覺防護，可減少人
員傷害。
c) 防止意外發生。在連接電源或電池組、拿起或
攜帶工具前，請確認開關是在「off」（關
閉）的位置。
以手指放在開關握持電動工具，或在電動工具
的開關於「on」的狀況下插上插頭，都會導致
意外發生。
d) 在電動工具啟動前，先卸下任何調整用鑰匙或
扳手。
扳手或鑰匙遺留在電動工具的轉動部位時，可
能導致人員傷害。
e) 身體勿過度伸張，任何時間要保持站穩及平
衡。
以便在不預期的狀態下，能對電動工具有較好
的控制。
f) 衣著要合宜，別穿太鬆的衣服或戴首飾。保持
你的頭髮、衣服及手套遠離轉動部位。
寬鬆的衣服、手飾及長髮會被捲入轉動部位。
g) 如果裝置要用於粉塵抽取及集塵設施，要確保
其連接及正當使用。
使用集塵裝置可減少與灰塵相關的危險。
h) 請勿因頻繁使用本工具，熟悉操作而忽略本工
具的安全原則。
粗心的行動有可能瞬間即造成嚴重傷害。
4) 電動工具之使用及注意事項
a) 勿強力使用電動工具，使用正確之電動工具為
您所需。
正確使用電動工具，會依其設計條件，使工作
做得更好更安全。
b) 如果開關不能轉至開或關的位置，勿使用電動
工具。
任何電動工具不能被開關所控制是危險的，必
須要修理。
c) 進行任何調整、更換配件或收存電動工具時，
必須將插頭與電源分開，且需將電池組從電動
工具中取出。
此種預防安全措施，可減少意外開啟電動工具
之危險。
d) 收存停用之電動工具，需遠離兒童，且不容許
不熟悉電動工具或未瞭解操作電動工具說明的
人操作電動工具。
在未受過訓練的人手裡，電動工具極為危險。
e) 保養電動工具，檢查是否可動零件有錯誤的結
合或卡住、零件破裂及可能影響電動工具操作
的任何其他情形。電動工具如果損壞，在使用
前要修好。
許多意外皆肇因於不良的保養。
f) 保持切割工具銳利清潔。
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適當的保養切割工具，保持銳利之切削鋒口，
可減少卡住並容易控制。
g) 按照說明書使用電動工具、配件及刀具時，必
須考量工作條件及所執行之工作。
若未依照這些使用說明操作電動工具時，可能
造成相關之危害情況。
h) 保持把手和握持面乾燥、清潔，且未沾到油脂
和潤滑油。
滑溜的把手和握持面在操作時會有安全上的問
題，且可能造成本工具意外失去控制。
5) 電池式電動工具的使用及注意事項
a) 需再充電時，僅能使用製造商指定的充電器。
因充電器僅適合同一型式的電池組，若使用任
何其它電池組時，將導致起火的危險。
b) 使用電動工具時，僅能使用按照其特性設計的
電池組。
因使用其它任何電池組時，將導致人員傷害及
起火的危險。
c) 當電池組不再使用時，需保存好並遠離其它的
金屬物件，例如：迴紋針、錢幣、鑰匙、圖
釘、螺釘，或類似能造成端子與端子間連接的
其它較小金屬物件。
因電池組端子間短路時，將導致燃燒或起火的
危險。
d) 在誤用情況下，電解液可能自電池中噴出；請
避免接觸。當發生意外接觸時，請用清水沖
洗。若電解液觸及眼睛時，請儘速尋求醫療協
助。
因自電池中噴出的電解液，將導致灼傷或刺激
皮膚。
e) 請勿使用損壞或改造的電池組或電動工具。
損壞或改造的電池可能會發生不可預知的行
為，進而導致火災、爆炸或受傷的風險。
f) 請勿使電池組或電動工具接觸到火源或處於溫
度過高的地方。
接觸火源或溫度超過130℃可能會引起爆炸。
g) 請遵循所有充電指示，並且不要在說明書指定
的溫度範圍之外為電池組或電動工具充電。
充電不當或溫度超出指定範圍可能會損壞電池
並增加火災的風險。
6) 維修
a) 讓您的電動工具由合格修理人員僅使用相同的
維修零件更換。
如此可確保電動工具的安全得以維持。
b) 切勿對損壞的電池組進行維修。
電池組的維修只能由製造商或授權服務維修店
進行。
注意事項
不可讓孩童和體弱人士靠近工作場所。
應將不使用的電動工具存放在孩童和體弱人士伸手
不及的地方。
充電式金屬切鋸機安全警告
鋸切步驟
a) 危險：手部必須遠離鋸片與切割區域。
如果雙手皆握住圓鋸機，雙手便可免於鋸片所
傷。
b) 不可碰觸下方的工件。
否則保護罩無法保護您免於鋸片所傷。
c) 調整工件厚度的相對鋸切深度。
在工件下方應可看到小於鋸片全齒深之深度。
d) 鋸切時，切勿用手握持工件或用腿橫跨工件。必
須將工件固定於平穩的工作台。
減少身體的暴露、鋸片卡住或失控，是正確的完
成工作的重要憑藉。
e) 在鋸切工具可能接觸到隱藏線路之情況下進行操
作時，握住電動工具的絕緣握持面。
接觸到「通電」的電線將使電動工具的金屬零件
「通電」，而造成操作人員觸電。
f) 進行鋸切時應使用鋸切護罩或引導器。
此舉可改善鋸切的精確度並減少發生鋸片卡住的
機會。
g) 使用正確的軸孔尺寸與形狀(菱形端或圓端)的鋸
片。
若鋸片與鋸機的安裝硬體不相配，鋸片在運作時
會偏離中心，並導致失控。
h) 不可使用已損壞或不正確的鋸片墊圈或螺栓。
鋸片墊圈與螺栓是特別專為圓鋸機所設計以提供
最佳的性能表現與最安全的操作。
反衝原因和相關警告
– 反衝是因鋸片被夾住、卡住或未對準，而導致鋸
機失控抬起或脫離工件，並朝向操作人員的作用
力；
– 當鋸片被切口緊緊地夾住或卡住時，會造成鋸片
動彈不得，電動機失衡之下會帶動本工具迅速反
撲向操作人員；
– 如果鋸切時鋸片扭曲或不正，鋸片後緣的齒部便
會戳入鋼材的上表面而造成鋸片脫離切口並回彈
朝向操作人員。
反衝作用是圓鋸機誤用或操作程序或條件不正確所
造成的結果，以下所列的正確防範措施可以避免此
類問題的發生。
a) 保持緊握鋸機，讓您的手臂的位置可抵抗反彈的
力量。身體須位於鋸片的任一側，身體與鋸片不
可成一直線。
2023/06/19 8:57:47Stylesheet: ASIA Version: 2023.6.14
CD1805DB_C99277131_306_Asia
中國語
20
反衝作用力會導致圓鋸向後彈跳，但如果有採取
適當的預防措施，反衝作用力是可以被操作者所
控制。
b) 當鋸片被夾住時或者由於某些原因中斷時，請鬆
開開關機並且保持圓鋸機不動，直到鋸片作動完
全停止。
當鋸片在運行中或者有可能發生反衝作用力時，
決不可試圖從工件上移開圓鋸機或者將圓鋸機向
後拉。
須進行調查並且採取矯正措施以消除鋸片夾住的
原因。
c) 重新啟動鋸切工件時，須將鋸片定位在切口中
央，不要使鋸齒與材料嚙合。
如果鋸片有夾入，重新啟動鋸機時，鋸機可能會
從工件向上移動或產生反衝。
d) 採用大面板支撐座，使鋸片受夾住或產生反衝作
用力的風險降到最低。
由於其自身重力，大面板支撐座趨於下陷。
支撐座必須置於面板兩側的下方，靠近鋸切路徑
與面板邊緣。
e) 不要使用不鋒利或已損壞的鋸片。
裝設不鋒利或不正確的鋸片會產生狹窄切口而造
成過大的磨擦力、鋸片夾住以致產生反衝作用
力。
f) 在進行鋸切之前，必須牢牢地固定住鋸片深度與
斜度調整鎖定桿。
如果鋸片調整裝置在鋸切時移動，可能會造成夾
住並產生反衝作用力。
g) 在進行牆壁或其他隱蔽區域之鋸切時，請格外小
心。
鋸片可能會鋸切到足以產生反衝作用力的物體。
下罩功能
a) 在每次使用之前，先檢查下罩是否能正確的關
閉。如果下罩無法自由移動與立即關閉，決不可
操作鋸機。切勿將下罩夾入或拴入開啟位置。
如果圓鋸機不慎掉落，下罩可能會彎折。
使用縮回把手以升起下罩，並確定其可自由移
動，而且在各種角度和深度之鋸切皆不會接觸到
鋸片或者任何其他部位。
b) 檢查下罩彈簧之作動狀況。如果下罩與彈簧皆無
法正確的作動，請在使用之前必須先行將它們修
復。
下罩可能由於零件損壞、黏膠沉澱，殘屑生成而
造成作動遲滯。
c) 僅在使用「切入式鋸切」與「複合式鋸切」之類
的特殊鋸切方式時，才能使用手動縮回下罩。利
用縮回把手可將下罩升起，當鋸片開始切入工件
材料時，下罩必須是釋放的狀態。
所有圓鋸機的下罩皆應可自動的作動。
d) 在將圓鋸機置於工作台或地板上之前，務必先檢
查下罩是否有覆蓋於鋸片上。
一個未受保護、限制的鋸片將會導致圓鋸機反向
行進而產生任意鋸切的情形。請務必明瞭在鬆開
開關後至鋸片完全停止時所需的時間。
附加安全警告
1. 操作時佩戴耳塞，保護耳朵。
2. 僅使用本圓鋸機所指定的鋸片直徑。
3. 不可使用任何砂輪。
4. 不要使用變形或斷裂的鋸片。
5. 不要使用由高速鋼所做成的鋸片。
6. 不要使用未依照規定的鋸片。
7. 不要在圓盤上施加橫向壓力使鋸片停止。
8. 隨時保持鋸片鋒利。
9. 確定下罩可平順且自由的移動。
10.決不可將圓鋸機的下罩固定在開啟位置。
11.確定護罩系統的縮回機構能正確的作動。
12.決不以向上或移動至側邊的操作方式進行操作圓
鋸機。
13.確保工件材料沒有鐵釘之類的異物。
14.鋸片應為 135mm。
15.在進行任何調整、保養或維修之前，須先取出電
池。
16.小心因制動器的作用而引起的反彈。
本圓鋸機配備有電動制動器，當開關釋放時會起
作用。當制動器起作用時會產生一些反彈，請務
必牢固地握住主機身。
17.確保開關處於OFF位置。如果在電源開關處於ON
位置時安裝電池，電動工具將立即開始運作，可
能會導致嚴重的事故。
18.避免在底座已從工件材料上浮起的情況下進行鋸
切操作。
當鋸片被夾住時或者由於某些原因中斷時，請鬆
開開關機並且保持圓鋸機不動，直到鋸片作動完
全停止。當鋸片在運行中或者有可能發生反衝作
用力時，決不可試圖從工件上移開圓鋸機或者將
圓鋸機向後拉。須進行調查並且採取矯正措施以
消除鋸片夾住的原因。
19.採用大面板支撐座，使鋸片受夾住或產生反衝作
用力的風險降至最低。由於其自身重力，大面板
支撐座趨於下陷（見圖3）。支撐座必須置於面
板兩側的下方，靠近鋸切路徑與面板邊緣，見
圖2.
為了使鋸片受夾住或產生反衝作用力的風險降至
最低。鋸切操作需要圓鋸機抵靠在工件上時，應
將圓鋸機擱在工件上大塊部分並且鋸切較小的部
分。
20.在進行牆壁或其他隱蔽區域之「槽切」時，請格
外小心。鋸片可能會鋸切到足以產生反衝作用力
的物體。
2023/06/19 8:57:47Stylesheet: ASIA Version: 2023.6.14
CD1805DB_C99277131_306_Asia
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