Makita 5143R User manual

1
GB Circular Saw INSTRUCTION MANUAL
SCirkelsåg BRUKSANVISNING
NSirkelsag BRUKSANVISNING
FIN Pyörösaha KÄYTTÖOHJE
LV Diskzāģis LIETOŠANAS INSTRUKCIJA
LT Diskinis pjūklas NAUDOJIMO INSTRUKCIJA
EE Ketassaag KASUTUSJUHEND
RUS Дисковая Пила
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
5603R
5703R
5705R
5903R
5103R
5143R

2
1
1 005392
1
1
2 005393
1
AB
5603R,5703R,5705R
3 005394
12
BA
5903R/5103R
4 005449
12
34
5
6
7
5 005396
1
2
3
4
1- 5mm
1- 5mm
6 005397
1
2
7 005398
1
2
8 005399
1
2
3
4
9 005400
1
10 005414 11 005401 12 005402
1
13 001145
1
2
14 005403

3
ENGLISH (Original instructions)
Explanation of general view
1-1. Lever
2-1. Clamping screw
3-1. Base plate
4-1. Top guide
4-2. Base
5-1. 60 ﾟangle cuts
5-2. 45 ﾟangle cuts
5-3. 30 ﾟangle cuts
5-4. Straight cuts
5-5. Blade
5-6. Base
5-7. Top guide
6-1. Setting protuberances
6-2. Hex socket head bolt (For adjusting
riving knife)
6-3. Setting protuberances
6-4. Cutting depth
7-1. Lock-off button
7-2. Switch trigger
8-1. Hex wrench
8-2. Shaft lock
9-1. Hex socket head bolt
9-2. Outer flange
9-3. Saw blade
9-4. Inner flange
10-1. Vacuum cleaner
13-1. Limit mark
14-1. Screwdriver
14-2. Brush holder cap
SPECIFICATIONS
Model 5603R 5703R 5705R 5903R 5103R 5143R
Blade diameter 165 mm 190 mm 190 mm 235 mm 270 mm 355 mm
at 90° 54 mm 66 mm 66 mm 85 mm 100 mm 130 mm
Max. cutting depth at 45° 38 mm 46 mm 46 mm 64 mm 73 mm 90 mm
No load speed (min-1) 5,000 4,800 4,800 4,500 3,800 2,700
Overall length 330 mm 356 mm 356 mm 400 mm 442 mm 607 mm
Net weight 4.9 kg 5.7 kg 5.7 kg 7.2 kg 9.4 kg 14.0 kg
Safety class /II /II /II /II /II /II
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
ENE078-2
Intended use
The tool is intended for performing lengthways and
crossways straight cuts and mitre cuts with angles in
wood while in firm contact with the workpiece. With
appropriate Makita genuine saw blades, other materials
can also be sawed.
ENF002-2
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and can
only be operated on single-phase AC supply. They are
double-insulated and can, therefore, also be used from
sockets without earth wire.
For model 5705R
ENF100-1
For public low-voltage distribution systems of
between 220 V and 250 V.
Switching operations of electric apparatus cause voltage
fluctuations. The operation of this device under
unfavorable mains conditions can have adverse effects
to the operation of other equipment. With a mains
impedance equal or less than 0.37 Ohms it can be
presumed that there will be no negative effects. The
mains socket used for this device must be protected with
a fuse or protective circuit breaker having slow tripping
characteristics.
ENG905-1
Noise
The typical A-weighted noise level determined according
to EN60745:
Model 5603R
Sound pressure level (LpA) : 91 dB(A)
Sound power level (LWA) : 102 dB(A)
Uncertainty (K) : 3 dB(A)
Model 5143R
Sound pressure level (LpA) : 88 dB(A)
Sound power level (LWA) : 99 dB(A)
Uncertainty (K) : 3 dB(A)
Model 5703R, 5705R, 5903R
Sound pressure level (LpA) : 92 dB(A)
Sound power level (LWA) : 103 dB(A)
Uncertainty (K) : 3 dB(A)
Model 5103R
Sound pressure level (LpA) : 87 dB(A)
Sound power level (LWA) : 98 dB(A)
Uncertainty (K) : 3 dB(A)
Wear ear protection

4
ENG900-1
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Model 5603R
Work mode : cutting wood
Vibration emission (ah,W) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
Model 5103R, 5143R
Work mode : cutting wood
Vibration emission (ah,W) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
Work mode : cutting metal
Vibration emission (ah,M) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
Model 5703R
Work mode : cutting wood
Vibration emission (ah,W) : 3.5 m/s2
Uncertainty (K) : 1.5 m/s2
Model 5903R
Work mode : cutting wood
Vibration emission (ah,W) : 3.0 m/s2
Uncertainty (K) : 1.5 m/s2
Work mode : cutting metal
Vibration emission (ah,M) : 4.0 m/s2
Uncertainty (K) : 1.5 m/s2
Model 5705R
Work mode : cutting wood
Vibration emission (ah,W) : 2.5 m/s2
Uncertainty (K) : 1.5 m/s2
ENG901-1
• The declared vibration emission value has been
measured in accordance with the standard test
method and may be used for comparing one tool
with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the
power tool can differ from the declared emission
value depending on the ways in which the tool is
used.
• Be sure to identify safety measures to protect the
operator that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it
is running idle in addition to the trigger time).
ENH101-16
For European countries only
EC Declaration of Conformity
We Makita Corporation as the responsible manufacturer
declare that the following Makita machine(s):
Designation of Machine:
Circular Saw
Model No./ Type: 5603R, 5703R, 5705R, 5903R, 5103R,
5143R
are of series production and
Conforms to the following European Directives:
2006/42/EC
And are manufactured in accordance with the following
standards or standardised documents:
EN60745
The technical documentation is kept by:
Makita International Europe Ltd.
Technical Department,
Michigan Drive, Tongwell,
Milton Keynes, Bucks MK15 8JD, England
30.1.2009
000230
Tomoyasu Kato
Director
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi, 446-8502, JAPAN
GEA010-1
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.
GEB029-5
CIRCULAR SAW SAFETY
WARNINGS
Cutting procedures
1.
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.
2. Do not reach underneath the workpiece. The
guard cannot protect you from the blade below the
workpiece.
3. 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.

5
4. 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 minimize body exposure, blade binding,
or loss of control.
A typical illustration of proper hand support, workpiece
support, and supply cord routing (if applicable).
000157
5. Hold the power tool by insulated gripping
surfaces only, 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.
6. When ripping, always use a rip fence or
straight edge guide. This improves the accuracy
of cut and reduces the chance of blade binding.
7. 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.
8. 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, 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 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.
9. 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.
10. 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.
11. 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.
12. 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.
To avoid kickback, do support
board or panel near the cut.
000154
Do not support board or
panel away from the cut.
000156
13. Do not use dull or damaged blades.
Unsharpened or improperly set blades produce
narrow kerf causing excessive friction, blade
binding and kickback.
14. 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.

6
15. Use extra caution when sawing into existing
walls or other blind areas. The protruding blade
may cut objects that can cause kickback.
16. ALWAYS hold the tool firmly with both hands.
NEVER place your hand or fingers behind the
saw. If kickback occurs, the saw could easily jump
backwards over your hand, leading to serious
personal injury.
000194
17. Never force the saw. Push the saw forward at a
speed so that the blade cuts without slowing.
Forcing the saw can cause uneven cuts, loss of
accuracy, and possible kickback.
Lower guard function
18. 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.
19. 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.
20. Lower guard may 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.
21.
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.
22. To check lower guard, open lower guard by
hand, then release and watch guard closure.
Also check to see that retracting handle does
not touch tool housing. Leaving blade exposed
is VERY DANGEROUS and can lead to serious
personal injury.
Riving knife function
23. Use the appropriate saw blade for the riving
knife. For the riving knife to function, the body of
the blade must be thinner than the riving knife and
the cutting width of the blade must be wider than
the thickness of the riving knife.
24. Adjust the riving knife as described in this
instruction manual. Incorrect spacing,
positioning and alignment can make the riving
knife ineffective in preventing kickback.
25. Always use the riving knife except when
plunge cutting. Riving knife must be replaced
after plunge cutting. Riving knife causes
interference during plunge cutting and can create
kickback.
26. For the riving knife to work, it must be
engaged in the workpiece. The riving knife is
ineffective in preventing kickback during short
cuts.
27. Do not operate the saw if riving knife is bent.
Even a light interference can slow the closing rate
of a guard.
Additional safety warnings
28. Use extra caution when cutting damp wood,
pressure treated lumber, or wood containing
knots. Maintain smooth advancement of tool
without decrease in blade speed to avoid
overheating the blade tips.
29. Do not attempt to remove cut material when
blade is moving. Wait until blade stops before
grasping cut material.Blades coast after turn off.
30. Avoid Cutting Nails. Inspect for and remove all
nails from lumber before cutting.
31. Place the wider portion of the saw base on
that part of the workpiece which is solidly
supported, not on the section that will fall off
when the cut is made. As examples, Fig. 1
illustrates the RIGHT way to cut off the end of
a board, and Fig. 2 the WRONG way. If the
workpiece is short or small, clamp it down. DO
NOT TRY TO HOLD SHORT PIECES BY HAND!
Fig. 1
000147

7
Fig. 2
000150
32. Before setting the tool down after completing
a cut, be sure that the lower guard has closed
and the blade has come to a complete stop.
33. Never attempt to saw with the circular saw
held upside down in a vise. This is extremely
dangerous and can lead to serious accidents.
000029
34. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
35. Do not stop the blades by lateral pressure on
the saw blade.
36. Always use blades recommended in this
manual. Do not use any abrasive wheels.
37. Keep blade sharp and clean. Gum and wood
pitch hardened on blades slows saw and
increases potential for kickback. Keep blade clean
by first removing it from tool, then cleaning it with
gum and pitch remover, hot water or kerosene.
Never use gasoline.
38. Wear a dust mask and hearing protection
when use the tool.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained
from repeated use) replace strict adherence to safety
rules for the subject product. MISUSE or failure to
follow the safety rules stated in this instruction
manual may cause serious personal injury.
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.
Adjusting depth of cut
Fig.1
CAUTION:
• After adjusting the depth of cut, always tighten the
lever securely.
Loosen the lever on the depth guide and move the base
up or down. At the desired depth of cut, secure the base
by tightening the lever.
For cleaner, safer cuts, set cut depth so that no more
than one blade tooth projects below workpiece. Using
proper cut depth helps to reduce potential for dangerous
KICKBACKS which can cause personal injury.
Bevel cutting
Fig.2
For model 5603R, 5703R, 5705R, 5903R, 5103R
Loosen the clamping screws in front and back, and tilt the
tool to the desired angle for bevel cuts (0° - 45°). Secure
the clamping screws tightly in front and back after making
the adjustment.
For model 5143R
Loosen the clamping screw in front and tilt the tool to the
desired angle for bevel cuts (0 - 60°). Secure the
clamping screw tightly in front after making the
adjustment.
Sighting
For 5603R, 5703R, 5705R, 5903R, 5103R
Fig.3
Fig.4
For straight cuts, align the A position on the front of the
base with your cutting line. For 45° bevel cuts, align the B
position with it.
For 5143R
Fig.5
Align your sight line with either the 0° notch for straight
cutting or the 30° notch for 30° angle cuts or the 45°
notch for 45° angle cuts or the 60° notch for 60° angle
cuts.
Riving knife adjustment
Fig.6
Use the hex wrench to loosen the hex socket head bolt
for the riving knife adjustment, then raise the lower blade
guard. Move the riving knife up or down over the two
protuberances for settings indicated in the figure, so as to
obtain the proper clearance between the riving knife and
saw blade.

8
CAUTION:
• Ensure that the riving knife is adjusted such that:
The distance between the riving knife and the
toothed rim of the saw blade is not more than 5 mm.
The toothed rim does not extend more than 5 mm
beyond the lower edge of the riving knife.
Switch action
Fig.7
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the "OFF" position when released.
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided. To start the tool,
push in the lock-off button and pull the switch trigger.
Release the switch trigger to stop.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Removing or installing saw blade
The following blade can be used with this tool.
Model Max. dia. Min. dia. Blade thickness Kerf
5603R 165 mm 150 mm 1.6 mm or less 1.9 mm or more
5703R,5705R
190 mm 170 mm 1.6 mm or less 1.9 mm or more
5903R 235 mm 210 mm 1.7 mm or less 2.1 mm or more
5103R 270 mm 260 mm 1.8 mm or less 2.2 mm or more
5143R 355 mm 350 mm 2.3 mm or less 2.7 mm or more
006481
The thickness of the riving knife is 1.8 mm for Models
5603R,5703R and 5705R or 2.0 mm for Models for
5903R and 5103R or 2.5 mm for Model 5143R.
CAUTION:
• Do not use saw blades which do not comply with
the characteristics specified in these instructions.
• Do not use saw blades the disc of which is thicker
or the set of which is smaller than the thickness of
the riving knife.
Fig.8
CAUTION:
• Be sure the blade is installed with teeth pointing up
at the front of the tool.
• Use only the Makita wrench to install or remove the
blade.
• Never depress the shaft lock while the saw is
running.
To remove the blade, press the shaft lock fully so that the
blade cannot revolve and use the hex wrench to loosen
the hex bolt counterclockwise. Then remove the hex bolt,
outer flange and blade.
To install the blade, follow the removal procedure in
reverse. BE SURE TO TIGHTEN THE HEX BOLT
CLOCKWISE SECURELY.
Fig.9
When changing blade, make sure to also clean upper
and lower blade guards of accumulated sawdust. Such
efforts do not, however, replace the need to check lower
guard operation before each use.
Connecting a vacuum cleaner
Fig.10
When you wish to perform clean cutting operation,
connect a Makita vacuum cleaner to your tool. Install the
joint on the tool using the screws. Then connect a hose of
the vacuum cleaner to the joint as shown in the figure.
OPERATION
CAUTION:
• Be sure to move the tool forward in a straight line
gently. Forcing or twisting the tool will result in
overheating the motor and dangerous kickback,
possibly causing severe injury.
Hold the tool firmly. The tool is provided with both a front
grip and rear handle. Use both to best grasp the tool. If
both hands are holding saw, they cannot be cut by the
blade. Set the base on the workpiece to be cut without
the blade making any contact. Then turn the tool on and
wait until the blade attains full speed. Now simply move
the tool forward over the workpiece surface, keeping it
flat and advancing smoothly until the sawing is
completed.
To get clean cuts, keep your sawing line straight and your
speed of advance uniform. If the cut fails to properly
follow your intended cut line, do not attempt to turn or
force the tool back to the cut line. Doing so may bind the
blade and lead to dangerous kickback and possible
serious injury. Release switch, wait for blade to stop and
then withdraw tool. Realign tool on new cut line, and start
cut again. Attempt to avoid positioning which exposes
operator to chips and wood dust being ejected from saw.
Use eye protection to help avoid injury.
Fig.11
CAUTION:
• The riving knife should always be used except
when plunging in the middle of the workpiece.
Rip fence (Guide rule)
Fig.12
The handy rip fence allows you to do extra-accurate
straight cuts. Simply slide the rip fence up snugly against
the side of the workpiece and secure it in position with
the screw on the front of the base. It also makes repeated
cuts of uniform width possible.

9
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may
result.
Replacing carbon brushes
Fig.13
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
Fig.14
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Saw blades
• Rip fence (Guide rule)
• Hex wrench
• Joint
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.