HIKOKI C 7SB3 User manual

C 7SB3
Handling instructions
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6
15
ⓑⓐ
6 mm
17 mm
43
#
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7
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.
Slippery handles and grasping surfaces do not
allow for safe handling and control of the tool in
unexpected situations.
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.
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8
5) 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.
PRECAUTION
Keep children and infirm persons away.
When not in use, tools should be stored out of reach of
children and infirm persons.
SAFETY INSTRUCTIONS FOR ALL
SAWS
Cutting procedures
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 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 or its own cord.
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 wood 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 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 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.
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.
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ADDITIONAL SAFETY WARNINGS
1. Use only blade diameter specified on the machine.
2. Do not use any abrasive wheel.
3. Do not use saw blades which are deformed or cracked.
4. Do not use saw blades made of high speed steel.
5. Do not use saw blades which do not comply with the
characteristics specified in these instructions.
6. Do not stop the saw blades by lateral pressure on the
disc.
7. Always keep the saw blades sharp.
8. Ensure that the lower guard moves smoothly and freely.
9. Never use the circular saw with its lower guard fixed in
the open position.
10. Ensure that the retraction mechanism of the guard
system operates correctly.
11. Never operate the circular saw with the saw blade turned
upward or to the side.
12. Ensure that the material is free of foreign matters such as
nails.
13. For model C7SB3, the saw blades range should be from
185 mm to 180 mm.
14. Disconnect the plug from the receptacle before carrying
out any adjustment, servicing or maintenance.
15. Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
16. Before the tool is plugged in to the receptacle, ensure
that the power switch is in the OFF position.
If the plug is connected to a receptacle while the power
switch is in the ON position, the power tool will start
operating immediately, which could cause a serious
accident.
17. When the work area is removed from the power source,
use an extension cord of sufficient thickness and rated
capacity. The extension cord should be kept as short as
practicable.
18. Since the saw blade will extend beyond the lower surface
of the lumber, place the lumber on a workbench when
cutting. If a square block is utilized as a workbench,
select level ground to ensure it is properly stabilized. An
unstable workbench will result in hazardous operation.
(Fig. 2)
To avoid possible accident, always ensure that the
portion of lumber remaining after cutting is securely
anchored or held in position.
19. Should lever remain loosened, it will create a very
hazardous situation. Always thoroughly clamp it. (Fig. 3)
20. It is very hazardous to allow Inclined lever to remain
loosened. Always thoroughly clamp it. (Fig. 4)
21. 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.
○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.
○Always take care in preventing the power cord from
coming near to the revolving saw blade.
○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 plug from the
receptacle.
22. After having attached the saw blade, reconfirm that the
lock lever is firmly secured in the prescribed position.
23. Do not use the tool with only the blower function.
24. Check that there are no nicks or scratches in the cord.
25. Check the exterior and ensure that there is no damage.
26. Use a saw blade with a displayed rotational speed equal
to or higher than the rotational speed of the tool.
27. Use a saw blade that suits each different cutting material.
NAME OF PARTS (Fig. 1 – Fig. 15)
1Switch trigger 0Inclined lever (Lumber i6 mm Hex. bar wrench
2Saw cover !Guide fastener wing-
bolt )Workbench oWasher (A)
3Lower guard lever @Inclined gauge qLock spring pSquare
4M8 bolt #Brush cap wPremarked line aHex. socket set screw
5Washer (B) $Handle eFront scale at 45°
incline s3 mm Hex. bar wrench
6Saw blade %Lock lever rFront scale when not
inclined
7Lower guard ^Nameplate tLever (short type)
8Guide &Lever yDust collector
9Base *Cord holder uM4 Screw
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10
SYMBOLS
WARNING
The following show symbols used for the machine.
Be sure that you understand their meaning before
use.
C7SB3 : Circular Saw
To reduce the risk of injury, user must read
instruction manual.
Always wear eye protection.
Always wear hearing protection.
VRated voltage
Cutting depth
PPower Input
n0No-Load speed
kg Weight (without cord)
Switching ON
Switching OFF
Disconnect mains plug from electrical outlet
Blower
Prohibited action
Class II tool
STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package
contains the accessories listed in the below.
○Saw Blade (Dia. 185 mm) (mounted on tool) ................1
○Hex. Bar wrench (mounted on tool)...............................1
○Guide ............................................................................1
○Wing-bolt ......................................................................1
○Lock Spring...................................................................1
○Lever (short type)..........................................................1
○Dust collector ................................................................1
Standard accessories are subject to change without notice.
APPLICATIONS
Cutting various types of wood.
SPECIFICATIONS
The specifications of this machine are listed in the Table on
page 12.
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
MOUNTING AND OPERATION
Action Figure Page
Adjusting the cutting depth 3 2
Adjusting the angle of inclination
(0o– 45o)42
Adjusting the angle of inclination
(45o– 55o) 52
Regulating the guide 6 3
Cutting line 7 3
Using the cord holder 8 3
Mounting the dust collector set 9 3
Switch operation*1 10 3
Dismounting the saw blade 11 4
Cutting (Do not use the tool with
only the blower function.) 12 4
Mounting the Saw Blade 13 5
Adjusting the base and saw blade
to maintain perpendicularity 14 5
Selecting accessories ―13
*1 Before beginning work, check to ensure that operating
the switch correctly turns the tool ON and OFF.
While the tool is plugged in to the receptacle, ensure that
the sawblade stops when the switch is turned OFF.
MAINTENANCE AND INSPECTION
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. Inspecting the carbon brushes (Fig. 15)
The motor employs carbon brushes which are consumable
parts. Since an excessively worn carbon brush can result
in motor trouble, replace the carbon brushes with new
ones having the same carbon brush No. ⓐshown in the
figure when it becomes worn to or near the “wear limit” ⓑ.
In addition, always keep carbon brushes clean and ensue
that they slide freely within the brush holders.
CAUTION
When replacing the new carbon brushes, always use
genuine HiKOKI carbon brushes with the number
specified in the drawing.
4. Replacing carbon brushes (Fig. 15)
Disassemble the brush caps with a slotted-head
screwdriver. The carbon brushes can then be easily
removed.
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11
5. Replacing supply cord
If the replacement of the supply cord is necessary, this
has to be done by the manufacturer of this agent in order
to avoid a safety hazard.
6. 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.
After 50 hours of use, clean the motor by blowing into the
ventilation holes of the motor housing with dry air from an
air gun or other tool (Fig. 16).
Dust or particle accumulation in the motor can result in
damage.
7. 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.
For cleaning and maintenance, use an air gun or other
tool to blow clean the space between the lower guard
and gear cover as well as the rotation part of the lower
guard with dry air (Fig. 16).
Doing so is effective for the emission of chips or other
particles.
Accumulation of chips or other particles around the lower
guard may result in malfunction or damage.
WARNING
To prevent dust inhalation or eye irritation, wear
protective safety goggles and a dust mask when
using an air gun or other tool to clean the lower guard,
ventilation holes or other parts of the product.
Ensure smooth movement
of lower guard
Rotation part of the
lower guard
Housing vent
Space between lower
guard and gear cover
Air gun
Fig. 16
CAUTION
In the operation and maintenance of power tools, the safety
regulations and standards prescribed in each country must
be observed.
NOTE
Due to HiKOKI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
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12
C7SB3
V(230, 240) V
90o62 mm
45o47.5 mm
P1710 W (230 V), 1710 W (240 V)
n06000 /min
kg 4.3 kg
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13
372757
872422
302691
324662
321639 333555
302411
372756
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14
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15
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806
Code No. C99722312 F
Printed in China
Shinagawa Intercity Tower A, 15-1, Konan 2-chome,
Minato-ku, Tokyo, Japan
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