Makita 5037NB User manual

Circular Saw
900
diameter
185 mm (7-1/4") MODEL 5037NB
450 50'
INSTRUCTION MANUAL
DOUBLE
INSULATION
SPEC IF I CAT1 0 N S
185 mm 62 mm 47 mm 365 mm 6.0 kg
17-114") 1 (2-7116"l I (14-318") 1 113.2 Ibsl
42mm 1 5,900
(1-27132")
1 11-518")
* Manufacturer reserves the right to change specifications without notice.
* Note: Specifications may differ from country to country.
WARNING: For your personal safety, READ and UNDERSTAND before using
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

GENERAL SAFETY RULES
(For All Tools)
WARNING! Read and understand all instructions. Failure
to follow all instructions listed below, may result in electric
shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
2
Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents.
Do notoperate powertools in explosiveatmospheres, suchas in the presence
of flammable liquids, gases, or dust. Power tools create sparks which may
ignite the dust or fumes.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to loose control.
Double Insulatedtools areequipped witha polarized plug(oneblade is wider
than the other.) This plug will fit in a polarized outlet only one way.
If the
plug does not fit fully in the outlet, reverse the plug. If it still does not fit,
contact a qualified electrician to install a polarized outlet. Do not change
the plug
in any way. Double insulation B eliminates the need for the three
wire grounded power cord and grounded power supply system.
Avoid body contact withgrounded surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk of electric shock if your body is
grounded.
Don't expose power tools torain or wet conditions. Water entering a power
tool
will increase the risk of electric shock.
Do notabuse the cord. Never use the cordto carry the tools or pull the plug
from anoutlet. Keep cordaway from heat, oil, sharp edges or moving parts.
Replace damaged cords immediately. Damaged cords increase the risk
of
electric shock.
When operating a power tooloutside, use an outdoor extension cordmarked
"W-A' or
"W." These cords are rated for outdoor use and reduce the risk
of electric shock.
Stay alert, watch what you are doing and usecommonsensewhenoperating
a power tool. Do not use tool while tired or under the influence of drugs,
alcohol, or medication.
A momentof inattentionwhile operating power tools
may result in serious personal injury.
Dressproperly. Do not wear loose clothing or jewelry. Contain long hair. Keep
your hair, clothing, andglovesaway from movingparts. Loose clothes, jewelry
or long hair can be caught in moving parts.

11. Avoid accidental starting. Be sure switch is off before plugging in. Carrying
tools
with your finger ontheswitchor plugging in tools that have the switch
on invites accidents.
12. Remove adjusting keysor switches before turning the tool on. A wrench or
a key that is left attachedto a rotating part of thetool may result in personal
i njur y.
13. Do notoverreach. Keepproperfooting and balanceat alltimes. Proper footing
and balance enables better control of the tool in unexpected situations.
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.
15. Use clamps or other practical way to secure and support the workpiece to
a stable platform. Holding the work by handor againstyour body is unstable
and may lead to
loss of control.
16. Do notforce tool. Use the correct toolfor your application. The correct tool
will do the job better and safer at the rate for which it is designed.
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.
18. Disconnect the plugfromthe power source before making any adjustments,
changing accessories, or storing the tool. Such preventive safety measures
reduce the risk of starting the tool accidentally.
19. Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
20. Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools, withsharp cutting edges are less likely
to bind and are easier
to control.
21. Check for misalignment or binding of movingparts, breakage of parts, and
any other condition that may affect the tools operation. If damaged, have
the tool service beforeusing. Manyaccidents are caused by poorly maintained
tools.
22. Use only accessories that are recommendedby the manufacturer for your
model. Accessories that may be suitable for one tool, may become hazardous
when used on another tool.
23. Tool service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of
injury.
24. When servicinga tool, use only identical replacement parts. Follow instruc-
tions
in the Maintenance section of this manual. Use of unauthorized parts
or failure to follow MaintenanceInstructionsmaycreate a risk of electric shock
of injury.
3

Specific Safety Rules
1. DANGER! Keep hands away from cuttingarea 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.
Keep your body positioned to either side of the saw blade, but not
in line
withthe saw blade. KICKBACKcould cause the sawtojump backwards. (See
"Causes and Operator Prevention of Kickback")
Do not reach underneath the work while blade is rotating. The guard can
not protect you from the blade below the work. Don't attempt to remove cut
material when blade is moving.
CAUTION: Blades coast after turn off.
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 intothe open position. If saw is accidentally dropped, lower
guard may be bent. Raisethe lower guard withthe Retracting Handleand make
sure it moves freely and does nottouchthe blade or any other part, inall angles
and depths of cut.
3. Check the operation and condition of the lower guard spring. If the guard
andthe spring are notoperating properly, they must be serviced before use.
Lower guard may operate sluggishly due to damaged parts gummy deposits,
or a buildup of debris.
4. Lower guard should be retracted manually only for special cuts such as
"Pocket Cuts" and "Compound Cuts." Raise lower guard by Retracting
Handle. As soonas blade enters the material, lower guard mustbe 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 inits path. Be aware of the time
it takes for the blade to stop after switch is released.
6. NEVER holdpiece 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. Holdtoolby insulatedgripping surfaces when performing anoperationwhere
the cutting tool may contact hidden wiring or its own cord. Contact with
a "live" wire will also make exposed metalparts of thetool "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 (diamondvs. round) arbor
holes. Blades that do not match the mounting hardware of the saw
will run
eccentrically, causing loss of control.
IO. Never use damaged or incorrect blade washers or bolts. The blade washers
and boltwere specially designed for your saw, for optimum performance and
safety or operation.
4

11. 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 thekerf closing down, theblade
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 takingproper precautions
as given below.
Maintaina firmgrip with bothhandsonthe saw and positionyour 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 interrupting a cut for any reason, release
thetrigger and holdthe saw motionless
in the material until the blade comes
toa complete stop. Never attempt toremovethesaw fromthe work or pull
the saw backward while the blade is in motion or KICKBACK may occur.
Investigateandtake corrective actionstoeliminate 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 tominimizethe risk of blade pinchingand KICKBACK.
Large panels tend to sag under their own weight. Supports must be placed
under the panel on bothsides, 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 work piece, the saw shall be rested
on the larger portion and the smaller piece cut off.
To avoid kickback, do support hoard
or panel near the cut
Fig. 1
Don’t support hoard or panel away
or panel near the cut
-
Fig. ;
5

Do not use dull or damaged blade. Unsharpened or improperly set blades
produce narrow kerf causing excessive friction, blade binding and
KICKBACK.
Bladedepthand beveladjustinglockinglevers mustbetight 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
blindareas. The protruding blade may cut objects that can cause KICKBACK.
NEVER place your hand or fingers
behind the saw. If kickback occurs,
the saw could easily jump backwards
over your hand, possibly causing
severe injury.
Fig.
12. Adjustments. Before cuttingbe sure depthand beveladjustments are tight.
13. Avoid Cutting Nails. Inspect for and remove all nails from lumber before
cutting.
14. When operating the saw, keep the
cordaway from the cuttingarea and
position it so that it will notbe caught
onthe workpiece during the cutting
operation.
Operate
with proper hand support,
proper workpiece support, and
supply cord routing away from the
work area.
A typical illustration of proper hand
support, workpiece support, and
supply cord routinq
Fig. 4
WARN IN G :
It isimportanttosupport the workpiece properly and to hold the saw firmly
toprevent
loss of controlwhich couldcause personalinjury. Fig. 4 illustrates
typical hand support of the saw.
6

15. Placethewider portionof the saw baseonthatpartof theworkpiece which
is solidly supported, not onthe sectionthat
will fall off whenthe cutismade.
As examples, Fig. 5 illustrates the RIGHT way tocutoff the end of a board,
and Fig. 6 the WRONG way. If the workpiece is shortor small, clamp it down.
DON'T TRY TO HOLD SHORT PLACES BY HAND!
___
Fig.
\
Fig. t
16. Never attempt tosaw with the circu
lar saw held upside down
in a vise.
Thisisextremely dangerous andcan
lead to serious accidents.
Fig. ;
17. Before setting the tool downafter completing a cut, be sure that the lower
(telescoping)guard has closedand the blade has come toa complete stop.
7

SYMBOLS
The followings show the symbols used for tool.
................................. volts
................................. amperes
................................. herts
................................. kliograms
................................. hours
................................. minutes
................................. seconds
................................. alternating current
................................. direct current
................................. no load speed
................................. alternating or direct current
................................. Class II Construction
A ................................. splash-proof construction
A A ................................. watertight construction
... /min ................................ revolutions or reciprocation per minute
& ................................. number of blow
8

CAUTION:
Always be sure that the tool
is switched off and unpluggedbefore removingor installing
the blade.
Removing or installingsaw blade
To remove the blade, press the shaft lock
so that the blade cannot revolve and use
the wrench to loosen the hex boltcounter-
clockwise.
Then removethe hex bolt, outer flange and
the blade.
To install the blade, follow the removal
procedure in reverse.
BE SURE TO TIGHTEN THE HEX BOLT
SECU
R E LY.
Fig. 8
i P
Fig.
CAUTION:
0 Be sure the blade is installed with teeth pointing up at the front of the tool.
Use only the Makita wrench to install or removethe blade.
Adjusting depth of cut
Loosen the lever on the depth guide and
move the base up or down.
At the desired depth of cut, secure the base
by tighteningthe lever.
Lever
Fig. 10
CAUTION :
Use a shallow depth of cut when cutting thin workpiece for cleaner, safer cuts.
0 After adjusting the depth of cut, always tighten the lever securely.
9

Bevel cutting
Loosen the nut on the bevel scale plate on
the front of
the base. Set for a desired
angle
(0 - 45') by tilting accordingly, then
tighten the nut firmly.
I
Fig. 11
Sighting
For straight cuts, align the right notch on
the front of the base with your cutting line
onthe workpiece.
For
45' bevel cuts, align the small notch
inthe front of the base with it.
Switchaction
To start the tool, simply pull the trigger.
Release the trigger tostop.
CAUTION:
Before plugging in the tool, always check
to
see that the switch trigger actuates pro-
perly and returns to the "OFF" position
when released.
For straight
cuts (90")
,I
It
--
Base plate
Fig. 12
I Fig. 1
10

Operation I
Guide rule 1
The handy guide rule allows you to do
extra-accurate straight cuts. Simply slide
the guide rule up snugly against the side
of the workpiece and secure it
in position
with the screw on the front of the base. It
makes repeated cuts
of uniformworkpiece
width possible, too. The cutting width can
be
set by reading the graduationsengraved
on the guide rule. When installing the guide
rule 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 guide rule
Hold the tool firmly.
Set the base plate 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.
Fig. 1
11

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore attempting to perform
inspection or maintenance.
Adjusting for accuracy
of 90" cut (verticalcut)
This adjustment has been made
at the factory. But if it is off, adjust the adjusting screw
with a screwdriver while squaring the blade with the base using a triangular rule, try-
square,
etc.
7 rBase
(-1 Screw
Fig. 16
Fig. 1
Replacingcarbon 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 identical carbon
brushes.
Fig. 18
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.
/ -Screwdriver
:Brush holder cap
Fig. 19
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 replacementparts.
12

OPTIONAL ACCESSORIES
The accessories listed in this manual are available at an extra cost from your Makita distributor or
Makitafactory service center. Service centers are listedonthe warranty card packed withyour tool.
CAUTION:
These accessories or attachments are recommendedfor use with your Makitatool specified in this
manual. The use of any other accessories or attachments might present a risk of injury to persons.
The accessories or attachments should be used only
in the proper and intended manner.
185 7B
Guide rule
Part No. 164818-4
7 1/4" 518"
1185mm) 115.88mm) 2o 7212454
Part No. 165152-5
"B
Chisel tooth combination saw blade
For rip and cross-cut work
Most frequently used for
general carpentry.
*Socket wrench 13
Part No. 782212-4
Carbide-tipped saw blade
Faster, smoother, longer sawing
without blade sharpening.
Cuts wood, drywall, plastics,
hard wood, etc.
D'ameter diameter teeth Part No
7 114" 518"
518" A~90009
7-114"
(185 mml
7~114" I 518" I 20 I A~90015
(185
mml
""' 1 5/8" 1 40 1 A 90043
(185
mml
13

Se~.-08-'95 US
185 mm (7-1/4")
CIRCULAR SAW
Model 5037NB
Model 5037"
Note: The switch and other part configurations
may differ from country to country.
14

MODEL 5037NB. 5037NBA
IF,'," GzD DESCRIPTION
1
1
1
1
1
1
1
1
1
1
1
t
1
1
1
4
1
1
1
1
1
1
1
1
1
1
Sep-08-'95 US
I:,'," $tD DESCRIPTION
HPX Flange HBdd Bolt Max20
0,iter rldnqe 40
Inner Flange 40
Retaining Ring S 42
Tapliing
Screw Bind CT 4x12
Lever
Tens~or1 Sprsnq 4
Bearing Box
Spindle
Woodruff Key 5
Ball Bearing 6202LLB
Retaining Rinq H 35
Ring 15
Hckal Gear 41
Nrrdle Bearmg 1010
Tapiring
Screw CT 4x16
Safely cover
r,eic
Baffle Plaic
1 Ball Bearing 629LLB
In~ulafion Washer
Armature
Fan 80
Spindle Lock
Flat Wa~lrcr 15
Bdll Bwrim] 6202LLB
MWE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
3.4
34
35
36
37
Mdkftd
L.itx.1
Tdppinq SLWW Bind Cl 4x20
Blade Case Cover
Flat W.lShP, 8
Pipe 9
Handle Sei Wfh Item 461
MACHINE
~
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
51
58
59
60
61
62
63
:: 1
1
68 1
69
73
74
1
1
1
1
1
1
2
I
1
3
2
1
1
3
1
1
4
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
1
Pan Head Screw M6xZO
Cover Plate
Rubber Sleeve 6
Cord
Cord Guard
Strain Relief
1appirUJ Screw 4x18
Switch
Handle Set iWifh lfem 371
Tapping Screw Flange PT 5x25
Tapping Screw Flange PT 5x60
Hex
Nut M8
Lever 54
Tapping
Screw Bind CT 5x50
Ring Spring 12
Name Plafe
lappiny Screw Bind Cl5x50
Brush Holder Cap
Carbo"
Brush
Motor Housing
Screw
M6x15
Pan Head Screw M4x8 IWith Washer1
POl,lfW
Pan Head Screw M4x8 IWifh Washer1
HPX Nut M8
Lock
Plate
Lever Plate
Flat Wdsher 8
Flat Washer 8
Angular Plate
Screw
M5x12
Cap
Sqiiare Neck Bolt Max30
Pin 8
Depth Guide
Countersunk Head Screw M4x8
Countersunk Head
Screw M5x12
Base
Note The swilsh and othcr part specifications may differ from country 10 Country
15

MAKITALIMITEDONE 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.
ThisWarranty does not apply where:
0 repairs have been made or attempted by others:
0 repairs are required because of normal wear and tear:
The tool has been abused, misused or improperly maintained ;
0 alterations have been made tothe tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OF
THE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM OFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,”
AFTER THE ONE-YEAR TERM OFTHISWARRANTY.
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 Gainesville Hwy., Buford, GA 30518
884045 - 066
PRINTED IN USA