Circular Saw
185 mm (7-1/4”)
MODEL 5037NB
DOUBLE
INSULATION
I N S T R U C T I O N M A N U A L
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
w w w. m a k i t a t o o l s . c o m
trician to install a polarized outlet. Do not
change the plug in any way. Double insula-
13. Do not overreach. Keep proper footing
and balance at all times. Proper footing and
balance enables better control of the tool in
unexpected situations.
tion
eliminates the need for the three wire
grounded power cord and grounded power
supply system.
14. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must
be used for appropriate conditions. Ordinary
eye or sun glasses are NOT eye protection.
5. Avoid body contact with grounded sur-
faces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is grounded.
Tool Use and Care
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
15. Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body is unstable and may lead
to loss of control.
7. Do not abuse the cord. Never use the cord
to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil,
sharp edges or moving parts. Replace
damaged cords immediately. Damaged
cords increase the risk of electric shock.
16. Do not force tool. Use the correct tool for
your application. The correct tool will do the
job better and safer at the rate for which it is
designed.
8. When operating a power tool outside, use
an outdoor extension cord marked “W-A”
or “W”. These cords are rated for outdoor
use and reduce the risk of electric shock.
17. Do not use tool if switch does not turn it
on or off. Any tool that cannot be controlled
with the switch is dangerous and must be
repaired.
Personal Safety
18. Disconnect the plug from the power
source before making any adjustments,
changing accessories, or storing the tool.
Such preventive safety measures reduce the
risk of starting the tool accidentally.
9. Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while
operating power tools may result in serious
personal injury.
19. Store idle tools out of reach of children
and other untrained persons. Tools are
dangerous in the hands of untrained users.
10. Dress properly. Do not wear loose cloth-
ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
20. Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained
tools with sharp cutting edges are less likely
to bind and are easier to control.
11. Avoid accidental starting. Be sure switch
is off before plugging in. Carrying tools with
your finger on the switch or plugging in tools
that have the switch on invites accidents.
21. Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tools
operation. If damaged, have the tool ser-
viced before using. Many accidents are
caused by poorly maintained tools.
12. Remove adjusting keys or wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of
the tool may result in personal injury.
3
22. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool, may become hazardous when used
on another tool.
tenance performed by unqualified personnel
could result in a risk of injury.
24. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
electric shock or injury.
SERVICE
23. Tool service must be performed only by
qualified repair personnel. Service or main-
USE PROPER EXTENSION CORD: Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop in line voltage resulting in loss of
power and overheating. Table 1 shows the correct size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage num-
ber, the heavier the cord.
Table 1: Minimum gage for cord
Volts
120 V
Total length of cord in feet
Ampere Rating
25 ft.
50 ft.
100 ft.
150 ft.
More Than
Not More Than
AWG
0
6
10
12
6
18
18
16
14
16
16
16
12
16
14
14
14
12
12
10
12
16
Not Recommended
SPECIFIC SAFETY RULES
USB008-5
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to circular saw safety
rules. If you use this tool unsafely or incorrectly, you can suffer
serious personal injury.
1. DANGER! Keep hands away from cutting
area and 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.
ator Prevention of Kickback”)
Do not reach underneath the work. The
guard can not protect you from the blade
below the work. Do not attempt to remove cut
material when blade is moving.
Keep your body positioned to either side
of the saw blade, but not in line with the
saw blade. KICKBACK could cause the saw
to jump backwards. (See “Causes and Oper-
CAUTION: Blades coast after turn off. Wait
until blade stops before grasping cut material.
4
2. Check lower guard for proper closing
before each use. Do not operate 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 Retract-
ing Lever and make sure it moves freely and
does not touch the blade or any other part, in
all angles and depths of cut.
also make exposed metal parts of the tool
“live” and shock the operator.
8. When ripping always use a rip fence or
straight edge guide. This improves the
accuracy of cut and reduces the chance for
blade binding.
9. Always use blades with correct size and
shape (diamond vs. round) arbor holes.
Blades that do not match the mounting hard-
ware of the saw will run eccentrically, causing
loss of control.
To check lower guard, open lower guard by
hand, then release and watch guard closure.
Also check to see that Retracting Lever does
not touch tool housing. Leaving blade
exposed is VERY DANGEROUS and can
lead to serious personal injury.
10. Never use damaged or incorrect blade
washers or bolts. The blade washers and
bolt were specially designed for your saw, for
optimum performance and safety of opera-
tion.
3. Check the operation and condition 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 buildup of debris.
11. Causes and Operator Prevention of Kick-
back:
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 operator.
Kickback is the result of tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper precau-
tions as given below:
4. Lower guard should be retracted manually
only for special cuts such as “Pocket
Cuts” and “Compound Cuts.” Raise lower
guard by Retracting Lever. As soon as
blade enters the material, lower guard
must be released. For all other sawing, the
lower guard should operate automatically.
5. 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.
Maintain a firm grip with both hands on
the saw and position your body and arm
to allow you to resist KICKBACK forces.
KICKBACK forces can be controlled by the
operator, if proper precautions are taken.
When blade is binding, or when interrupt-
ing a cut for any reason, release the trig-
ger and hold the saw motionless in the
material until the blade comes to a com-
plete stop. Never attempt to remove the
saw from the work or pull the saw back-
6. NEVER hold piece being cut in your hands
or across your leg. It is important to support
the work properly to minimize body exposure,
blade binding, or loss of control.
7. Hold 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
5
ward while the blade is in motion or KICK-
BACK may occur. Investigate and take
corrective actions to eliminate the cause of
blade binding.
When restarting a saw in the workpiece,
center 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.
Support large panels to minimize 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 as shown in Fig. 1.
To minimize the risk of blade pinching and
kickback. When cutting operation requires
the resting of the saw on the workpiece, the
saw should be rested on the larger portion
and the smaller piece cut off.
sharp and clean. Gum and wood pitch hard-
ened 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 ker-
osene. Never use gasoline.
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.
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. For pocket cuts,
retract lower guard using Retracting Lever.
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.
Fig. 3
Fig. 1 To avoid kickback, do support board or
Never force the saw. Forcing the saw can
cause uneven cuts, loss of accuracy, and
possible kickback. Push the saw forward at
a speed so that the blade cuts without slow-
ing.
panel near the cut.
12. Use extra caution when cutting damp
wood, pressure treated lumber, or wood
containing knots. Adjust speed of cut to
maintain smooth advancement of tool without
decrease in blade speed.
Fig. 2 Do not support board or panel away
13. Adjustments. Before cutting be sure
depth and bevel adjustments are tight.
from the cut.
Do not use dull or damaged blade.
Unsharpened or improperly set blades pro-
duce narrow kerf causing excessive friction,
blade binding and KICKBACK. Keep blade
14. Avoid Cutting Nails. Inspect for and
remove all nails from lumber before cut-
ting.
6
15. When operating the saw, keep the cord
away from the cutting area and position it
so that it will not be caught on the work-
piece during the cutting operation. The
tool is provided with a front grip and rear
handle for two hand operation. Operate
with proper hand support, proper work-
piece support, and supply cord routing
away from the work area.
Fig. 6
WARNING: It is important to support the
workpiece properly and to hold the saw
firmly to prevent loss of control which
could cause personal injury. Fig. 4 illus-
trates typical hand support of the saw.
17. Never attempt to saw with the circular saw
held upside down in
extremely dangerous and can lead to seri-
ous accidents.
a
vise. This is
Fig. 4 A typical illustration of proper hand
support, workpiece support, and supply
cord routing.
Fig. 7
18. WARNING: Blade coasts to stop after
switch is released. Contact with coasting
blade can cause serious injury. Before
setting the tool down after completing a
cut, be sure that the lower (telescoping)
guard has closed and the blade has come
to a complete stop.
16. 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. 5 illustrates the RIGHT way to cut off
the end of a board, and Fig. 6 the WRONG
way. If the workpiece is short or small,
clamp it down. DO NOT TRY TO HOLD
SHORT PIECES BY HAND!
19. Some material contains chemicals which
may be toxic. Take caution to prevent dust
inhalation and skin contact. Follow mate-
rial supplier safety data.
Fig. 5
7
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
SYMBOLS
USD201-2
The followings show the symbols used for tool.
V .......................volts
....................no load speed
n
˚
A .......................amperes
....................Class II Construction
Hz .....................hertz
.../min................revolutions or reciprocation per
minute
................alternating current
8
FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
001342
Adjusting depth of cut
CAUTION:
•
After adjusting the depth of cut, always tighten the lever
securely.
1
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.
1. 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.
001360
Bevel cutting
Loosen the lever on the bevel scale plate on the front of the
base. Set for the desired angle (0° - 50°) by tilting accord-
ingly, then tighten the lever securely.
2
1
1. Bevel scale plate
2. Lever
001377
Sighting
B
A
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.
1
1. Base
9
001398
Switch action
CAUTION:
1
•
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
position when released.
To start the tool, simply pull the switch trigger. Release the
switch trigger to stop.
1. Switch trigger
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
001419
Removing or installing saw blade
CAUTION:
•
Be sure the blade is installed with teeth pointing up at
the front of the tool.
2
•
Use only the Makita wrench to install or remove the
blade.
1
1. Wrench
To remove the blade, press the shaft lock so that the blade
cannot revolve and use the wrench to loosen the hex bolt
counterclockwise. Then remove the hex bolt, outer flange
and blade.
2. Shaft lock
001436
To install the blade, follow the removal procedure in reverse.
BE SURE TO TIGHTEN THE HEX BOLT CLOCKWISE
SECURELY.
1
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 opera-
tion before each use.
2
4
3
1. Saw blade
2. Hex bolt
3. Outer flange
4. Inner flange
10
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.
001462
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.
2
1
3
1. Rear handle
2. Front grip
3. Base
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.
001482
Rip fence (Guide rule)
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.
1
The cutting width can be set by reading the graduations
engraved on the rip fence. When installing the rip fence on
the right side of the tool (when viewed from the back of the
tool), read the graduation aligned with the right edge of the
base. When installing the rip fence on the left side of the tool,
read the graduation aligned with the left edge of the base.
1. Rip fence (Guide rule)
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
11
Adjusting for accuracy of 90° cut (vertical cut)
001498
This adjustment has been made at the factory. But if it is off,
adjust the adjusting screw with a hex wrench while squaring
the blade with the base using a triangular rule, try square,
etc.
1
2
1. Adjusting screw
2. Base
001507
1
1. Triangular rule
001145
Replacing carbon brushes
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 iden-
tical carbon brushes.
1
1. Limit mark
001517
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.
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always using
Makita replacement parts.
1
2
1. Brush holder cap
2. Screwdriver
12
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.
•
Steel & Carbide-tipped saw blades
Combination
General purpose blade for fast and smooth rip,
crosscuts and miters.
Pressure treated/ Designed for fast cutting of pressure treated
Wet lumber
and wet lumber.
Fine cross cuts
For sand-free cuts cleanly against the grain.
•
•
Rip fence (Guide rule)
Wrench 13
13
Memo
14
Memo
15
Memo
16
First-Class
Postage
Required
Post Office will
not deliver
without proper
postage.
Makita U.S.A., Inc.
14930 Northam Street
La Mirada, CA 90638-5753
Fold
MAIL THIS PORTION
Your answers to the following questions are appreciated.
1.This product was purchased from:
3. How did you learn about this product:
Home Center
Other (
)
Magazine
Radio
Hardware/Lumber Store
Tool Distributor
From Dealer
Newspaper
Store Display
Catalog
Exhibition
From Friend
Previous Usage
Other (
Industrial Supply
Construction Supply
)
2. Use of the product is intended for:
4. Most favored points are:
Construction Trade
Industrial Maintenance
Home Maintenance
Hobby
Design
Repair Service
Durability
Power
Features
Size
Price
Other (
)
Other (
)
Makita Brand
5. Any comments:
DATE PURCHASED
MONTH
MODEL NO.
DAY
YEAR
SERIAL NO.
STATUS
SEX
Married Single
M
F
INTL.
LAST NAME / COMPANY NAME
STREET ADRESS
CITY
AREA
CODE
STATE
ZIP CODE
PHONE
40-49
Under 19
20-29
30-39
50-60
Over 60
AGE:
BE SURE TO COMPLETE THE CUSTOMER’S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.
Please return this portion by facsimile or mail.
Facsimile No: (714) 522-8133
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FACTORY SERVICE CENTERS
1-800-4-MAKITA
RETAIN THIS PORTION FOR YOUR RECORDS
ARIZONA
FLORIDA
MISSOURI
PENNSYLVANIA
1704 Babcock Blvd.
Pittsburgh, PA 15209
(412) 822-7370
3707 E. Broadway Rd., Ste. 6
Phoenix, AZ 85040
(602) 437-2850
750 East Sample Road
Pompano Beach, FL 33064
(954) 781-6333
9876 Watson Road
St. Louis, MO 63126-2221
(314) 909-9889
CALIFORNIA
GEORGIA
NEBRASKA
PUERTO RICO
41850 Christy St.
Fremont, CA 94538-5107
(510) 657-9881
4680 River Green Parkway NW
Duluth, GA 30096
(770) 476-8911
4129 S. 84th St.
Omaha, NE 68127
(402) 597-2925
200 Guayama St.
Hato Rey, PR 00917
(787) 250-8776
14930 Northam St.
La Mirada, CA 90638-5753
(714) 522-8088
ILLINOIS
NEVADA
3375 S. Decatur Blvd.
Suites. 22 - 24
Las Vegas, NV 89102
(702) 368-4277
TENNESSEE
1120 Elm Hill P.
Suile 170 Nashville, TN 372
(615) 248-3321
1450 Feehanville Dr.
Mt. Prospect, IL 60056-6011
(847) 297-3100
1970 Fulton Avenue
Sacramento, CA 95825
(916) 482-5197
MARYLAND
TEXAS
7674 Clairemont Mesa Blvd.
San Diego, CA 92111
(858) 278-4471
7397 Washington Boulevard,
Suite 104 Elkridge, MD 21075
(410) 796-4401
NEW JERSEY
12801 Stemmons Fwy Ste. 809
Farmers Branch, TX 75234
(972) 243-1150
251 Herrod Blvd.
Dayton, NJ 08810-1539
(609) 655-1212
16735 Saticoy St., Ste. 105
Van Nuys, CA 91406
(818) 782-2440
12701 Directors Dr.
Stafford, TX 77477-3701
(281) 565-8665
MASSACHUSETTS
232 Providence Hwy.
Westwood, MA 02090
(781) 461-9754
NEWYORK
4917 Genessee Street
Cheektowaga, NY 14225
(716) 685-9503
3453 IH-35 North, Ste. 101
San Antonio, TX 78219
(210) 228-0676
COLORADO
11839 E. 51st Ave.
Denver, CO 80239-2709
(303) 371-2850
MINNESOTA
6427 Penn Ave. South
Richfield, MN 55423
(612) 869-5199
OREGON
828 19th Avenue, N.W.
Portland, OR 97209
(503) 222-1823
WISCONSIN
Lincoln Plaza Shopping Ctr.
2245 S. 108th St. West Allis, WI
53227
(414) 541-4776
CUSTOMER’S RECORD
Date Purchased
When you need service: Send
complete tool (prepaid) to one
of the Makita Factory Service
Centers listed, or to an Authorized
Makita Service Center. Be sure
to attach a letter to the outside of
the carton detailing the problem
with your tool.
Dealer’s Name & Address
Model No.
Serial No.
19
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to the State of California
to cause cancer, birth defects or other reproductive harm. Some examples
of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this
type of work. To reduce your exposure to these chemicals: work in a well
ventilated area, and work with approved safety equipment, such as those
dust masks that are specially designed to filter out microscopic particles.
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period of ONE YEAR from the date of original purchase.
Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of
Makita’s Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective
workmanship or material, Makita will repair (or at our option, replace) without charge.
This Warranty does not apply where:
• repairs have been made or attempted by others:
• repairs are required because of normal wear and tear:
• the tool has been abused, misused or improperly maintained:
• alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING
AND AFTER THE TERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
“MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,” AFTER THE ONE YEAR TERM OF THIS
WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied
warranty lasts, so the above limitation may not apply to you.
Makita Corporation of America
2650 Buford Hwy., Buford, GA 30518
884045C066
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