DeWalt DCS373 ユーザーマニュアル

カテゴリー
丸鋸
タイプ
ユーザーマニュアル
DCS373
2
English (original instructions) 5
简体中文 19
繁體 33
한국어 47
Copyright DeWALT
1
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ENGLISH
5
140 mm (5-1/2") 18V CORDLESS METAL-CUTTING
CIRCULAR SAW, DCS373
Congratulations!
You have chosen a DeWALT tool. Years of experience, thorough product development and innovation make
DeWALT one of the most reliable partners for professional power tool users.
Technical Data
DCS373
Voltage V
DC
18
Max. power output W 460
No-load speed min
-1
3700
Blade diameter mm 140
Maximum depth of cut mm 43
Blade bore mm 20
Weight (without battery pack) kg 3.46
Definitions: Safety Guidelines
The definitions below describe the level of severity
for each signal word. Please read the manual and
pay attention to these symbols.
DANGER: Indicates an imminently
hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING: Indicates a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
CAUTION: Indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
Battery pack DCB180 DCB181 DCB182 DCB183 DCB184
Battery type Li-Ion Li-Ion Li-Ion Li-Ion Li-Ion
Voltage V
DC
18 18 18 18 18
Capacity A
h
3.0 1.5 4.0 2.0 5.0
Weight kg 0.64 0.35 0.61 0.40 0.63
Charger DCB105
Mains voltage V
AC
220-240 V
Battery type Li-Ion
Approx. charging time min 30 55 70
(1.5 Ah battery packs) (3.0 Ah battery packs) (4.0 Ah battery packs)
Weight kg 0.49
Charger DCB115
Mains voltage V
AC
220-240 V
Battery type Li-Ion
Approx. charging time min 22 45 60
(1.5 Ah battery packs) (3.0 Ah battery packs) (4.0 Ah battery packs)
Weight kg 0.5
ENGLISH
6
NOTICE: Indicates a practice not
related to personal injury which, if
not avoided, may result in property
damage.
Denotes risk of electric shock.
Denotes risk of fire.
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, 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 o r 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 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,
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
ENGLISH
7
the power tool before making any
adjustments, changing accessories, or
storing power tools. Such preventive safety
measures reduce the risk of starting the
power tool accidentally.
d) Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
e) Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tool’s 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.
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.
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.
Safety Instructions for All Saws
a) DANGER:Keep hands away from cutting
area and the blade. Keep your second hand
on auxiliary handle, or motor housing. 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 piece being cut in your hands or
across your leg. Secure the workpiece to a
stable platform. It is important to support the
work properly to minimise body exposure, blade
binding, or loss of control.
e) Hold 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
shock the operator.
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 eccentrically,
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.
Further Safety Instructions for All
Saws
CAUSES AND OPERATOR PREVENTION OF KICKBACK
Kickback is a sudden reaction to a pinched,
bound 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 bound 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 wood
causing the blade to climb out of the kerf and
ENGLISH
8
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 with both hands 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 and check
that saw teeth are not engaged into the
material. If saw blade is binding, 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.
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 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 Safety Instructions
a) Check lower guard for proper closing before
each use. Do not operate the saw if lower
guard does not move freely and close
instantly. Never clamp or tie the lower guard
into the open position. If saw is accidentally
dropped, 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) Lower guard should be retracted manually
only for special cuts such as “plunge cuts”
and “compound cuts.” Raise lower guard
by retracting handle and as soon as 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 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.
NOTE: Although the above information references
wood, this saw is only to be used to cut metal.
Kickback can occur when cutting metal.
Additional Specific Safety
Instructions for Circular Saws
Do not use abrasive wheels or blades.
Do not use water feed attachments.
Do not attempt to cut stainless steel, rebar,
hardened or heat-treated steel, cast iron,
masonry or unknown materials
Use clamps or another practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body leaves it unstable and may
lead to loss of control.
Keep your body positioned to either side
of the blade, but not in line with the saw
blade. KICKBACK could cause the saw to
jump backwards (see Causes and Operator
Prevention of Kickback and KICKBACK).
Air vents often cover moving parts and
should be avoided. Loose clothes, jewellery or
long hair can be caught in moving parts.
Wear ear protectors. Exposure to noise can
cause hearing loss.
Wear a dust mask. Exposure to dust particles
can cause breathing difficulty and possible
injury.
Do not use blades of larger or smaller
diameter than recommended. For the proper
ENGLISH
9
blade rating refer to the Technical Data.
Use only the blades specified in this manual,
complying with EN 847-1.
When not in use, place circular saw on a
stable surface, shoe side down, where it will
not cause a tripping or falling hazard. Some
tools with large battery packs will stand upright
on the battery pack but may be easily knocked
over.
Residual Risks
The following risks are inherent to the use of circular
saws.
Injuries caused by touching the rotating parts or
hot part of the tool.
In spite of the application of the relevant safety
regulations and the implementation of safety
devices, certain residual risks cannot be avoided.
These are:
Impairment of hearing.
Risk of squeezing fingers when changing the
accessory.
Health hazards caused by breathing dust
developed when working in wood.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual before use.
Wear ear protection.
Wear eye protection.
DATE CODE POSITION (FIG. 1)
The date code (u), which also includes the year of
manufacture, is printed into the housing surface that
forms the mounting joint between tool and battery.
Example:
2013 XX XX
Year of Manufacture
Important Safety Instructions for All
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual
contains important safety and operating instruc tions
for the DCB105 and DCB115 battery charger.
Before using the charger, read all instructions
and cautionary markings on charger, battery
pack and product using the battery pack.
WARNING: Shock hazard. Do not allow
any liquid to get inside charger. Electric
shock may result.
CAUTION: Burn hazard. To reduce
the risk of injury, charge only DeWALT
rechargeable battery packs. Other types
of batteries may overheat and burst
resulting in personal injury and property
damage.
CAUTION: Children should be
supervised to ensure that they do not
play with the appliance.
NOTICE: Under certain conditions, with
the charger plugged in to the power
supply, the exposed charging contacts
inside the charger can be shorted by
foreign material. Foreign materials of
a conductive nature such as, but not
limited to, steel wool, aluminum foil or
any buildup of metallic particles should
be kept away from charger cavities.
Always unplug the charger from the
power supply when there is no battery
pack in the cavity. Unplug charger
before attempting to clean.
DO NOT attempt to charge the battery pack
with any chargers other than the ones in
this manual. The charger and battery pack are
specifically designed to work together.
These chargers are not intended for
any uses other than charging DeWALT
rechargeable batteries. Any other uses
may result in risk of fire, electric shock or
electrocution.
Do not expose charger to rain or snow.
Pull by plug rather than cord when
disconnecting charger. This will reduce risk
of damage to electric plug and cord.
Make sure that cord is located so that it will
not be stepped on, tripped over or otherwise
subjected to damage or stress.
Do not use an extension cord unless it
is absolutely necessary. Use of improper
extension cord could result in risk of fire,
electric shock or electrocution.
When operating a charger outdoors, always
provide a dry location and use an extension
cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of
electric shock.
Do not block the ventilation slots on the
charger. The ventilation slots are located
ENGLISH
10
on the top and sides of the charger. Place
the charger in a position away from any heat
source.
Do not operate charger with damaged cord
or plug — have them replaced immediately.
Do not operate charger if it has received
a sharp blow, been dropped or otherwise
damaged in any way. Take it to an authorised
service centre.
Do not disassemble the charger; take it to
an authorised service centre when service or
repair is required. Incorrect reassembly may
result in a risk of electric shock, electrocution or
fire.
In case of damaged power supply cord the
supply cord must be replaced immediately by
the manufacturer, its service agent or similar
qualified person to prevent any hazard.
Disconnect the charger from the outlet
before attempting any cleaning. This will
reduce the risk of electric shock. Removing
the battery pack will not reduce this risk.
• NEVER attempt to connect 2 chargers together.
The charger is designed to operate on
standard 220-240V household electrical
power. Do not attempt to use it on any other
voltage. This does not apply to the vehicular
charger.
SAVE THESE INSTRUCTIONS
Chargers
The DCB105 and DCB115 charger accepts 10.8V,
14.4V and 18V Li-Ion (DCB121, DCB123, DCB140,
DCB141, DCB142, DCB143, DCB180, DCB181,
DCB182,DCB184 and DCB183) battery packs.
This charger requires no adjustment and is designed
to be as easy as possible to operate.
Charging Procedure (fig. 2)
1. Plug the charger into an appropriate 230 V
outlet before inserting the battery pack.
2. Insert the battery pack (i) into the charger,
making sure the pack is fully seated in the
charger. The red (charging) light will blink
continuously indicating that the charging
process has started.
3. The completion of charge will be indicated by
the red light remaining ON continuously. The
pack is fully charged and may be used at this
time or left in the charger.
NOTE: To ensure maximum performance and life of
Li-Ion batteries, fully charge the pack before first use.
Charging Process
Refer to the table below for the state of charge of
the battery pack.
Charge indicators: DCB115
charging –– –– –– ––
fully charged –––––––––––––––––
hot/cold pack delay –– • –– • –– • –– •
x
problem pack or charger • • • • • • • • • • • •
problem powerline •• •• •• •• •• ••
Charge indicators: DCB115
charging
fully charged
hot/cold pack delay*
This charger will not charge a faulty battery pack.
The charger will indicate faulty battery by refusing to
light or by displaying problem pack or charger blink
pattern.
NOTE: This could also mean a problem with a
charger.
If the charger indicates a problem, take the charger
and battery pack to be tested at an authorised
service centre.
Hot/Cold Pack Delay
When the charger detects a battery that is too hot
or too cold, it automatically starts a hot/cold pack
delay, suspending charging until the battery has
reached an appropriate temperature. The charger
then automatically switches to the pack charging
mode. This feature ensures maximum battery life.
XR Li-Ion tools are designed with an Electronic
Protection System that will protect the battery
against overloading, overheating or deep discharge.
The tool will automatically turn off if the Electronic
Protection System engages. If this occurs, place the
Li-Ion battery on the charger until it is fully charged.
A cold battery pack will charge at about half the rate
of a warm battery pack. The battery pack will charge
at that slower rate throughout the entire charging
cycle and will not return to maximum charge rate
even if the battery warms.
Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure
to include the catalog number and voltage.
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11
The battery pack is not fully charged out of the
carton. Before using the battery pack and charger,
read the safety instructions below and then follow
the charging procedures outlined.
READ ALL INSTRUCTIONS
Do not charge or use the battery pack
in explosive atmospheres, such as in the
presence of flammable liquids, gases or
dust. Inserting or removing the battery pack
from the charger may ignite the dust or fumes.
Never force the battery pack into charger.
Do not modify the battery pack in any way
to fit into a non-compatible charger as
battery pack may rupture causing serious
personal injury.
Charge the battery packs only in designated
DeWALT chargers.
DO NOT splash or immerse in water or other
liquids.
Do not store or use the tool and battery
pack in locations where the temperature
may reach or exceed 40°C (105°F) (such as
outside sheds or metal buildings in summer).
For best results, make sure the battery pack is
fully charged before use.
WARNING: Never attempt to open
the battery pack for any reason. If
the battery pack case is cracked or
damaged, do not insert it into the
charger. Do not crush, drop or damage
battery pack. Do not use a battery
pack or charger that has received a
sharp blow, been dropped, run over
or damaged in any way (e.g., pierced
with a nail, hit with a hammer, stepped
on). Electric shock or electrocution may
result. Damaged battery packs should
be returned to the service centre for
recycling.
CAUTION: When not in use, place
tool on its side on a stable surface
where it will not cause a tripping or
falling hazard. Some tools with large
battery packs will stand upright on the
battery pack but may be easily knocked
over.
SPECIFIC SAFETY INSTRUCTIONS FOR LITHIUM ION
(Li-Ion)
Do not incinerate the battery pack even if it
is severely damaged or is completely worn
out. The battery pack can explode in a fire.
Toxic fumes and materials are created when
lithium ion battery packs are burned.
If battery contents come into contact with
the skin, immediately wash the area with
mild soap and water. If the battery liquid gets
into the eye, rinse water over the open eye for
15 minutes or until irritation ceases. If medical
attention is needed, the battery electrolyte
is composed of a mixture of liquid organic
carbonates and lithium salts.
Contents of opened battery cells may cause
respiratory irritation. Provide fresh air. If
symptoms persists, seek medical attention.
WARNING: Burn hazard. Battery liquid
may be flammable if exposed to spark
or flame.
Battery Pack
BATTERY TYPE
The DCS373 operates on an 18 volt battery pack.
The DCB180, DCB181, DCB182 or DCB183 battery
packs may be used. Refer to Technical Data for
more information.
Storage Recommendations
1. The best storage place is one that is cool and
dry away from direct sunlight and excess heat
or cold. For optimum battery performance and
life, store battery packs at room temperature
when not in use.
2. For long storage, it is recommended to store a
fully charged battery pack in a cool, dry place
out of the charger for optimal results.
NOTE: Battery packs should not be stored
completely depleted of charge. The battery pack will
need to be recharged before use.
Labels on Charger and Battery Pack
In addition to the pictographs used in this manual,
the labels on the charger and the battery pack show
the following pictographs:
Read instruction manual before use.
Charging.
Fully charged.
Hot/cold pack delay.
x
Problem pack or charger.
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12
Problem powerline.
Do not probe with conductive objects.
Do not charge damaged battery packs.
Use only with DeWALT battery packs.
Others may burst, causing personal injury
and damage.
Do not expose to water.
Have defective cords replaced
immediately.
Charge only between 4°C and 40°C.
Discard the battery pack with due care for
the environment.
Do not incinerate the battery pack.
Charges Li-Ion battery packs.
See Technical data for charging time.
Only for indoor use.
Package Contents
The package contains:
1 Cordless metal-cutting circular saw
1 30 tooth blade
1 Hex key
2 Li-Ion battery packs (M2 models)
1 Kitbox
1 Charger
1 Instruction manual
NOTE: Battery packs, chargers and kitboxes are not
included with N-models.
Check for damage to the tool, parts or
accessories which may have occurred during
transport.
Take the time to thoroughly read and
understand this manual prior to operation.
Description (fig. 1, 4–6)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. Trigger switch
b. Trigger switch lock-off button
c. Depth adjustment lever
d. Spindle lock button
e. Kerf indicator
f. Blade clamping screw
g. Lower guard
h. Lower guard retracting lever
i. Battery pack
j. Sight window
k. Shoe
l. Hex key
m. Battery release button
n. Main handle
o. Auxiliary handle
p. Fuel gauge button (fig. 4)
q. Inner clamp washer (fig. 5, 6)
r. Outer clamp washer (fig. 5, 6)
s. Saw spindle (fig. 5, 6)
t. Blade (fig. 5, 6)
INTENDED USE
This metal-cutting circular saw is intended for use
by professionals for cutting light gauge metals and
small metal structural shapes.
DO NOT use under wet conditions or in presence of
flammable liquids or gases.
This metal-cutting circular saw is a professional
power tool. DO NOT let children come into
contact with the tool. Supervision is required when
inexperienced operators use this tool.
This product is not intended for use by persons
(including children) suffering from diminished
physical, sensory or mental abilities; lack of
experience, knowledge or skills unless they are
supervised by a person responsible for their
safety. Children should never be left alone with
this product.
WARNING: Do not plunge cut or
pocket cut with this saw
WINDOW (FIG. 1)
WARNING: Do not operate the
saw with a damaged or missing
sight window. If window is damaged
ENGLISH
13
or missing, have the saw serviced at
an authorised service centre. If saw is
operated without the window, metal
chips could fly through the guard and
cause personal injury.
CAUTION: Do not use oil or cutting
fluids with the metal-cutting saw.
Do not use cleaning fluids to clean
window. Cleaning fluids, cutting
fluids or oils could harm the plastic in
the window, interfering with the safe
operation of the saw.
The saw is equipped with a sight window (j) on the
side of the upper guard. This window allows the
user to see a cutting line on the material to be cut.
SAW SHOE (FIG. 1)
The front of the saw shoe (k) has a kerf indicator
(e) that allows the operator to glide the saw along
cutting lines. Aligning the cutting line with the notch
on the front of the shoe and centering it using the
modified V-shaped kerf indicator allows the operator
to keep the blade in line with the cutting line. If the
cutting line is visible through the narrowest part of
the kerf indicator, the blade will pass directly over the
cutting line.
WORKLIGHT
The saw is equipped with a worklight that is
activated when the trigger switch is depressed.
The light will automatically turn off 20 seconds after
the trigger switch is released. If the trigger switch
remains depressed, the worklight will remain on.
NOTE: The worklight is for lighting the immediate
work surface and is not intended to be used as a
flashlight.
Electrical Safety
The electric motor has been designed for one
voltage only. Always check that the battery pack
voltage corresponds to the voltage on the rating
plate. Also make sure that the voltage of your
charger corresponds to that of your mains.
Your DeWALT charger is double insulated
in accordance with IEC 60335; therefore
no earth wire is required.
If the supply cord is damaged, it must be replaced
by a specially prepared cord available through the
DeWALT service organization.
Using an Extension Cable
An extension cord should not be used unless
absolutely necessary. Use an approved extension
cable suitable for the power input of your charger
(see Technical Data). The minimum conductor size
is 1 mm
2
; the maximum length is 30 m.
When using a cable reel, always unwind the cable
completely
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
before making any adjustments or
removing/installing attachments or
accessories. An accidental start-up
can cause injury.
WARNING: Use only DeWALT battery
packs and chargers.
Inserting and Removing the
Battery Pack from the Tool (fig. 3)
NOTE: For best results, make sure your battery
pack is fully charged. The light will shut off without
warning when the battery is fully discharged.
TO INSTALL THE BATTERY PACK INTO THE TOOL HANDLE
1. Align the battery pack (i) with the rails inside the
tool’s handle (fig. 3).
2. Slide it into the handle until the battery pack is
firmly seated in the tool and ensure that it does
not disengage.
TO REMOVE THE BATTERY PACK FROM THE TOOL
1. Press the battery release button (m) and firmly
pull the battery pack out of the tool handle.
2. Insert battery pack into the charger as
described in the charger section of this manual.
FUEL GAUGE BATTERY PACKS (FIG. 4)
Some DeWALT battery packs include a fuel gauge
which consists of three green LED lights that
indicate the level of charge remaining in the battery
pack.
To actuate the fuel gauge, press and hold the fuel
gauge button (p). A combination of the three green
LED lights will illuminate designating the level of
charge left. When the level of charge in the battery
is below the usable limit, the fuel gauge will not
illuminate and the battery will need to be recharged.
NOTE: The fuel gauge is only an indication of the
charge left on the battery pack. It does not indicate
tool functionality and is subject to variation based
on product components, temperature and end-user
application.
ENGLISH
14
Trigger Switch (fig. 1)
WARNING: This tool has no provision
to lock the trigger switch in the ON
position and should never be locked ON
by any other means.
The saw is controlled by a trigger switch (a) and
lock-off button (b). The lock-off button must be
pressed before the trigger switch will turn the saw
on. Releasing the trigger turns the saw off.
Changing Blades (fig. 1, 5–7)
TO INSTALL THE BLADE
1. Place inner clamp washer (q) on saw spindle (s)
with the large flat surface facing out toward the
blade (fig.5, 6).
2. Retract the lower blade guard (g) and place
blade (t) on saw spindle against the inner
clamp washer (q), making sure that the blade
will rotate in the proper direction (the direction
of the rotation arrow on the saw blade and
the teeth must point in the same direction as
the direction of rotation arrow on the saw). Do
not assume that the printing on the blade will
always be facing you when properly installed.
When retracting the lower blade guard to install
the blade, check the condition and operation
of the lower blade guard to assure that it is
working properly. Make sure it moves freely and
does not touch the blade or any other part, in all
angles and depths of cut.
3. Place the outer clamp washer (r) on the saw
spindle (s) with the large flat surface against the
blade (t) with beveled side facing out.
4. Thread the blade clamping screw (f) into the
saw spindle by hand. (Screw has left-hand
threads and must be turned counterclockwise
to tighten. Refer to arrow in Figure 7A.)
5. Depress the spindle lock button (d) while turning
the saw spindle with the hex key (l, fig.1) until
the spindle lock engages and the blade stops
rotating.
6. Tighten the blade clamping screw firmly with the
hex key.
NOTICE: Never engage the spindle
lock while saw is running, or engage
in an effort to stop the tool. Never turn
the saw on while the spindle lock is
engaged. Serious damage to your saw
will result.
TO REPLACE THE BLADE
1. To loosen the blade clamping screw (f), depress
the spindle lock button (d) and turn the saw
spindle (s) with the hex key (l) until the spindle
lock engages and the blade stops rotating.
With the spindle lock engaged, turn the blade
clamping screw clockwise with the hex key.
(Screw has left-hand threads and must be
turned clockwise to loosen. Refer to arrow in
Figure 7B.)
2. Remove the blade clamping screw (f) and outer
clamp washer (r) only. Remove old blade.
3. Clean any metal chips/shavings that may have
accumulated in the guard or clamp washer area
and check the condition and operation of the
lower blade guard as previously outlined. Do not
lubricate this area.
4. Select the proper blade for the application
(see Blades). Always use blades that are the
correct size (diameter) with the proper size
and shape centre hole for mounting on the
saw spindle. Always assure that the maximum
recommended speed (rpm) on the saw blade
meets or exceeds the speed (rpm) of the saw.
5. Follow steps 2 through 6 under To Install the
Blade, making sure that the blade will rotate in
the proper direction.
LOWER BLADE GUARD
WARNING: Under certain conditions
of use, metal chips may become
imbedded in the surfaces of the lower
guard, causing the lower guard to rub
against the upper guard. Check the
operation of the lower guard before
each use and remove any imbedded
chips.
WARNING: The lower blade guard is
a safety feature which reduces the
risk of serious personal injury. Never
use the saw if the lower guard is
missing, damaged, misassembled
or not working properly. Do not rely
on the lower blade guard to protect
you under all circumstances. Your
safety depends on following all
warnings and precautions as well
as proper operation of the saw.
Check lower guard for proper
closing before each use as outlined
in Additional Safety Rules for Circular
Saws. If the lower blade guard is
missing or not working properly,
have the saw serviced before
using. To assure product safety and
reliability, repair, maintenance and
adjustment should be performed
by an authorised service centre or
other qualified service organization,
ENGLISH
15
always using identical replacement
parts.
BLADES
WARNING: To minimise the risk of
eye injury, always use eye protection.
Carbide is a hard but brittle material.
Foreign objects in the workpiece such
as wire or nails can cause tips to crack
or break. Only operate saw when proper
saw blade guard is in place. Mount
blade securely in proper rotation before
using, and always use a clean, sharp
blade.
Blade Diameter Teeth Application
DT1212-QZ 140mm 30 General purpose
(5-1/2") ferrous metal
cutting
If you need assistance regarding blades, please
contact your local DeWALT dealer.
KICKBACK
Kickback is a sudden reaction to a pinched, bound
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 bound
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 material
causing the blade to climb out of the kerf and jump
back toward the operator.
Kickback is more likely to occur when any of the
following conditions exists.
1. IMPROPER WORKPIECE SUPPORT
A. Sagging or improper lifting of the cut off
piece can cause pinching of the blade and
lead to kickback (fig. 9).
B. Cutting through material supported at the
outer ends only can cause kickback. As the
material weakens it sags, closing down the
kerf and pinching the blade (fig. 9).
C. Cutting off a cantilevered or overhanging
piece of material from the bottom up in a
vertical direction can cause kickback. The
falling cut off piece can pinch the blade.
D. Cutting off long narrow strips can cause
kickback. The cut off strip can sag or twist
closing the kerf and pinching the blade.
E. Snagging the lower guard on a surface
below the material being cut momentarily
reduces operator control. The saw can lift
partially out of the cut increasing the chance
of blade twist.
2. IMPROPER DEPTH OF CUT SETTING ON
SAW
To make the most efficient cut, the blade should
protrude only far enough to expose a tooth
as shown in Figure 8. This allows the shoe to
support the blade and minimises twisting and
pinching in the material. See the section titled
Depth Adjustment.
3. BLADE TWISTING (MISALIGNMENT IN
CUT)
A. Pushing harder to cut can cause the blade to
twist.
B. Trying to turn the saw in the cut (trying to get
back on the marked line) can cause blade
twist.
C. Overreaching or operating the saw with poor
body control (out of balance), can result in
twisting the blade.
D. Changing hand grip or body position while
cutting can result in blade twist.
E. Backing up the saw to clear blade can lead
to twist.
4. USE OF DULL OR DIRTY BLADES
Dull blades cause increased loading of the
saw. To compensate, an operator will usually
push harder which further loads the unit and
promotes twisting of the blade in the kerf.
Worn blades may also have insufficient body
clearance which increases the chance of
binding and increased loading.
5. RESTARTING A CUT WITH THE BLADE
TEETH JAMMED AGAINST THE MATERIAL
The saw should be brought up to full operating
speed before starting a cut or restarting a cut
after the unit has been stopped with the blade
in the kerf. Failure to do so can cause stalling
and kickback.
Any other conditions which could result in pinching,
binding, twisting, or misalignment of the blade could
cause kickback. Refer to the sections Further
Safety Instructions for All Saws and Blades for
procedures and techniques that will minimise the
occurrence of kickback.
Depth Adjustment (fig. 8)
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
ENGLISH
16
before making any adjustments or
removing/installing attachments or
accessories. An accidental start-up
can cause injury.
The metal-cutting saw is equipped with a pivoting
shoe that allows the operator to set the depth of cut.
For the most efficient cutting action, set the depth
adjustment so that one tooth of the blade projects
below the material to be cut. This distance is from
the tip of the tooth to the bottom of the gullet in front
of the tooth. This keeps blade friction at a minimum,
removes metal chips from the cut, results in cooler,
faster sawing and reduces the chance of kickback.
TO SET THE DEPTH OF CUT
1. Lay the piece of material you plan to cut along
the blade as shown.
2. Note how much tooth projects beyond the
material.
3. Loosen the depth adjustment lever (c) and
move the shoe to change the depth of cut.
4. Retighten the depth adjustment lever securely.
Workpiece Support (fig. 9)
CUTTING SHEETS OF METAL
Figure 9 shows the correct and incorrect way to
support a large sheet. To avoid kickback, support
material near the cut. Do not support it away
from the cut. If material is supported away from
the cut, it will bind the blade and cause kickback.
When cutting thin strips, keep the blade at least
1/2" (approximately 13 mm) from the edge of the
material. Thin strips may bind, causing kickback and
increasing the risk of personal injury.
CUTTING RECTANGULAR METAL STOCK
Clamp the material you plan to cut to a workbench
or other work surface as shown above.
Cutting (fig. 10, 11)
1. Hold the saw securely using both hands.
Figure10 shows appropriate hand position.
Keep your body to one side of the line along
which you are cutting. This will protect you from
injury related to kickback.
2. When cutting ends off of rectangular metal
stock, place the widest part of the shoe on
the part of the material that is clamped to the
workbench or other support, not on the part of
the material that will fall when the cut is made.
3. Depress the trigger switch and allow the saw to
reach full speed before the blade contacts the
material to be cut (fig. 11).
4. Push the saw forward at a speed that allows
the blade to cut without laboring.
5. As you finish a cut, release the trigger and allow
the blade to stop before lifting the saw from
the work. As you lift the saw, the guard will
automatically close under the blade.
CORRECTING A CUT
Should your cut begin to leave the cutting line, don’t
try to force it back on. Forcing a correction can stall
the saw and cause kickback. Instead, release the
switch and allow the blade to come to a complete
stop. Then, back the saw out of the cut. Restart
the saw and re-enter the cut, following the desired
cutting line.
CAUTION: Do not cut through bolts
with the metal-cutting saw. Damage to
the saw or personal injury could result.
Maximizing Blade Life
To extend blade life, follow these practices:
Do not force the blade through the metal. The
saw must cut at its own pace and at a constant
rate.
Change blades when it is no longer easy to
push the saw through the cut, when the motor
is straining, or when excessive heat is built up in
the blade.
Keep base of the saw firmly against metal you
are cutting.
If the metal you are cutting is vibrating or
shaking, clamp the material as close to the cut
as possible and slow down the cutting rate.
OPERATION
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
before making any adjustments or
removing/installing attachments or
accessories. An accidental start-up
can cause injury.
WARNING: Always wear proper
personal hearing protection. Under
some conditions and duration of use,
noise from this product may contribute
to hearing loss.
Instructions for Use
WARNING:
Always observe the safety
instructions and applicable
regulations.
Ensure the material to be sawn is
secured in place.
ENGLISH
17
Apply only a gentle pressure to the
tool and do not exert side pressure
on the saw blade. If possible, work
with the saw shoe pressed against
the workpiece. This prevents damage
to the blade and stops the tool from
jerking and vibrating.
Avoid overloading.
Let the blade run freely for a few
seconds before starting the cut.
Proper Hand Position (fig. 10)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the
main handle (n), with the other hand on the auxiliary
handle (o), as shown in Figure 10, to guide the saw
properly.
MAINTENANCE
Your DeWALT power tool has been designed to
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
before making any adjustments or
removing/installing attachments or
accessories. An accidental start-up
can cause injury.
Replacing Sight Window (fig. 1)
WARNING: Do not operate the saw
with a damaged or missing sight
window. If window is damaged or
missing, have the saw serviced at an
authorised service centre. If the saw
is operated without the window, metal
chips could fly through the guard and
cause personal injury.
The sight window (j) must be replaced by an
authorised DeWALT service centre.
CAUTION: Do not use any cleaning
fluids on the sight window to avoid
clouding it and compromising the safe
operation of the saw. Use compressed
air to remove accumulated dust from
the inside of the sight window. Wear
safety glasses when performing this.
The charger and battery pack are not serviceable.
There are no serviceable parts inside.
Lubrication
Your power tool requires no additional lubrication.
Cleaning
WARNING: Blow dirt and dust out of
the main housing with dry air as often as
dirt is seen collecting in and around the
air vents. Wear approved eye protection
and approved dust mask when
performing this procedure.
WARNING: Never use solvents or
other harsh chemicals for cleaning the
non-metallic parts of the tool. These
chemicals may weaken the materials
used in these parts. Use a cloth
dampened only with water and mild
soap. Never let any liquid get inside the
tool; never immerse any part of the tool
into a liquid.
CHARGER CLEANING INSTRUCTIONS
WARNING: Shock hazard. Disconnect
the charger from the AC outlet before
cleaning. Dirt and grease may be
removed from the exterior of the charger
using a cloth or soft non-metallic brush.
Do not use water or any cleaning
solutions.
Optional Accessories
WARNING: Since accessories, other
than those offered by DeWALT, have
not been tested with this product, use
of such accessories with this tool could
be hazardous. To reduce the risk of
injury, only DeWALT, recommended
accessories should be used with this
product.
Use only 140 mm (5-1/2") DeWALT metal-cutting
blades with a 20mm arbor.
Consult your dealer for further information on the
appropriate accessories.
ENGLISH
18
Protecting the Environment
Separate collection. This product must
not be disposed of with normal
household waste.
Should you find one day that your DeWALT product
needs replacement, or if it is of no further use to you,
do not dispose of it with household waste. Make this
product available for separate collection.
Separate collection of used products
and packaging allows materials to be
recycled and used again. Re-use of
recycled materials helps prevent
environmental pollution and reduces
the demand for raw materials.
Local regulations may provide for separate collection
of electrical products from the household, at
municipal waste sites or by the retailer when you
purchase a new product.
DeWALT provides a facility for the collection and
recycling of DeWALT products once they have
reached the end of their working life. To take
advantage of this service please return your product
to any authorised repair agent who will collect them
on our behalf.
You can check the location of your nearest
authorised repair agent by contacting your local
DeWALT office at the address indicated in this
manual. Alternatively, a list of authorised DeWALT
repair agents and full details of our after-sales
service and contacts are available on the Internet at:
www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when
it fails to produce sufficient power on jobs which
were easily done before. At the end of its technical
life, discard it with due care for our environment:
Run the battery pack down completely, then
remove it from the tool.
Li-Ion cells are recyclable. Take them to your
dealer or a local recycling station. The collected
battery packs will be recycled or disposed of
properly.
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