Makita 5820 User manual

185 mm (744”) MODEL 5820
Equipped with Electric Brake
INSTRUCTION MANUAL
‘ION
SPEC IF I CAT I 0 N S
No load speed Overall I Net
Max. cuttingcapacities
(RPMI length weight
Blade
diameter
43mm I 4,000
185 mm 64 mm
(7-114”)
1 12-112”) I (1.518“)
285 mm 3.5 kg
1 111-114”) 1 (7.7 Ibs)
* Manufacturer reserves the right to change specifications without notice.
Note: Specifications may differ from country to country.

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING: WHEN USING ELECTRIC TOOLS, BASIC SAFE-
REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, AND PER-
TY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO
SONAL INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
IO.
11.
12.
13.
2
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well
lit. Don't expose power toolstorain.
Don't use tool
in presence of flammable liquids or gases.
KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
STORE IDLETOOLS. Whennot
in use, toolsshould be stored in dry, and high
or locked-up place - out of reach of children.
DON'T FORCETOOL.
It willdothejobbetterandsafer atthe ratefor which
it was intended.
USE RIGHT TOOL. Don't force small tool or attachment to do the job of a
heavy-dutytool. Don't use tool for purpose not intended.
DRESSPROPERLY. Don't wear looseclothing
or jewelry. They canbe caught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protectivehair covering tocontain long hair.
USE SAFETY GLASSES. Also use face or dust mask
if cutting operation is
dusty.
DON'T ABUSE CORD. Never carry toolby cordor yank
it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
SECURE WORK. Use clamps or a vise to hold work. It's safer than using
your hand and
it frees both hands to operate tool.
DON'T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructionsfor lubricatingand changing acces-
sories. Inspecttoolcords periodicallyand
if damaged, haverepairedby autho-
rized service facility. Inspect extension cords periodically and replace
if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. When not
in use, beforeservicing, andwhenchang-
ing accessories, such as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keysand adjusting wrenches are removedfrom tool beforeturning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry plugged-intoolwithfinger
on switch. Be sure switch is
OFF when plugging in.
16. OUTDOOR USEEXTENSIONCORDS. Whentool is used outdoors, use only
extension cords intended for use outdoors and
so marked.
17. STAY ALERT. Watch what youare doing, usecommon sense. Don't operate
tool when you are tired.
18. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other
part that is damaged should be carefully checked to determine that
it will
operate properly and performitsintended function. Check for alignment of
movingparts, binding of movingparts, breakageof parts, mounting,andany
other conditions that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced by an authorized serv-
ice center unless otherwise indicatedelsewhere inthis instructionmanual.
Have defective switches replaced by authorized service center. Don't use
tool
if switch does not turn it on and off.
19. GUARD AGAINST ELECTRIC SHOCK. Preventbody contact withgrounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
20. REPLACEMENTPARTS.Whenservicing, useonly identical replacementparts.
Ampere rating 0- 2.10 - 3.50 - 5.10 -
(onnameplate) 2.00 3.40 5.00 7.00
VOLTAGE WARNING: Before connectingthe tool toa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplate of the tool. A power source with voltage greater than that specified
for the tool can result inSERIOUS INJURY to the user
- as well as damage to
the tool.
If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
7.10 - 12.10 ~
12.00 16.00
Ext. Cable Length
25 Ft.
50 Ft.
75 Ft.
100 Ft.
150Ft.
Wire Size (AmericanWire Gauge)
18 18 18 18 16 14
18 18 18 16 14 12
18 18 16 14 12 10
18 16 14 12 10
16 14 12 12
~ ~
-
3

ADDITIONAL SAFETY RULES
1. Wear hearing protection.
2. Keep Guards In Place and In Working Order.
Never wedge or tie lower guard open. Check operation of lower guard be-
fore eachuse. Don't useif lower guarddoesnot close brisklyoversaw blade.
CAUTION: Ifsaw isdropped, lower guard may bebent, restricting
full return.
3. Keep Blades Clean and Sharp.
Sharp blades minimize stalling and kickback.
4. DANGER: Keep Hands Away From Cutting Area.
Keep hands away from blades.
Don't reach underneath work while blade
is rotating. Don't attempt to remove cut material when blade is moving.
CAUTION: Blades coast after turn off.
Largepanelsmust besupportedas
shown
in Fig. 1 tominimizetherisk
of blade pinching and kickback.
When cutting operation requires
the restingof the saw onthe work
piece, the saw shall be rested on
the larger portion and the smaller
piece cut off.
5. Support Large Panels.
To avoid kickback, do support board
or panel near the cut.
Fig.
Don't support board or panel away
from the cut.
Fig. '
6. Use Rip Fence.
7. Guard Against Kickback.
Always use a fence or straight edge guide when ripping.
Kickback occurs whenthe saw stallsrapidly and isdrivenback towards the
operator. Releaseswitchimmediatelyif bladebindsor saw stalls. Keep blades
sharp. Support large panels as shown
in Fig. 1. Use fence or straight edge
guide when ripping. Don't force tool. Stay alert exercise control. Don't re-
move saw from work during a cut while the blade is moving.
4

NEVER place your handor fingers
behind the saw.
If kickback oc-
curs, the saw could easily jump
backwardsover your hand, possi-
bly causing severe injury.
Fig. :
8. Lower Guard. Raise lower guard with the retracting handle.
9. Adjustments. Before cuttingbesure depthand beveladjustments are tight.
IO. Use Only Correct BladesInMounting. Don’t use blades withincorrect size
holes. Never use defective or incorrect blade washers or bolts.
11. Avoid Cutting Nails. Inspect for and remove all nails from lumber before
cutting.
12. When operatingthe saw, keepthe
cord away from the cutting area
andposition
it so that it willnotbe
caught on the workpiece during
the cutting operation.
Operatewith proper handsupport,
proper workpiece support, and
supply cordroutingaway fromthe
work area.
A typical illustration of proper hand
support, workpiece support, and
supply cord routing.
Fig. 1
WARNING :
It is importanttosupportthe workpiece properly andtoholdthe saw firmly
toprevent
loss of controlwhich could cause personalinjury. Fig. 4 illustrates
typical hand support of the saw.
5

13. Placethe wider portionof the saw base onthat partof the workpiece which
issolidly supported, notonthesection that willfall off whenthe cut ismade.
As examples, Fig. 5 illustrates the RIGHT way tocut off the end of a board,
andFig.
6 theWRONG way. If the workpiece isshort or small, clamp it down.
DON'T TRY TO HOLD SHORT
PIECES BY HAND!
Fig.
Fig.
14. Neverattempttosaw withthe cii
cular saw held upside down in a
I
vise. This is extremely dangerous
andcan lead toserious accidents.
I
Fig. i
15. Before setting the tool down after completinga cut, be sure that the lower
(telescoping)guard has closed andthe blade has come
to a completestop.
SAVE THESE INSTRUCTIONS.
6

Installing or removing saw blade
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore installing or removing
the blade.
The saw blade
ha5 not been mounted on
the saw
at thefactory, but has been packed
separately in the same carton. To install
the blade, carefully
follow the procedure
outlined below :
Hold the outer flange with the wrench and
loosen the hex bolt counterclockwisewith
the socket wrench. Then remove the hex
bolt and outer flange.
Place the saw blade on the shaft (arbor),
makingsure that the bladeteeth pointfor-
ward in the same direction
as the tool rota-
tion (the arrow on the blade should point
in the same direction
as the arrow on the
tool). Replace the outer flange and hex
bolt over the blade and TIGHTEN THE
HEX BOLT SECURELY in
a CLOCKWISE
direction.
CAUTION
:
.Use only the Makita wrench and socket
wrench to installor removethe blade.
position the recessed side of the inner
flange on the bladeside when mounting.
Outer flange \ Innerflange \ ’-
I
Fig. 8
I
Fig. S
I
Fig. 1(
To removethe blade, follow the installationprocedurein reverse.
7

Adjustingdepth of cut
Loosen the wing nut on the depth guide
and move the base up or down. At the
desired depth of cut, secure the base by
tighteningthe wing nut.
CAUTION
:
0 Use a shallow depth of cutwhen cutting thinworkpiece for cleaner, safer cuts.
0 After adjustingthe depthof cut, always tightenthe wingnut securely.
Sighting
For straight cuts, align the right notch in
the top guide with !our cutting line on the
workpiece. For
45 bevel cuts, align the
left notchwith
it.
For 45" 1 cFuq:straight
bevel cuts
Base plate
I I
Fig. 13
Switchaction
To prevent the trigger from being acciden-
tally pulled,
a lock-offbutton is provided
as a safety feature.
To start the tool, press in the lock-off
button and pull the trigger.
Release the
trigger to stop.
Fig. 14
CAUTION :
Before plugging in the tool, always check to see that the trigger switch actuatesproperly
and returnsto the "OFF" positionwhen released.
8

Operation
Grasp the rear handlewith your righthand,
the front grip with your left. Set the base
plate on the workpiece to be cut without
the blade making any contact. Then turn
the tool on and wait untilthe blade attains
full speed. Now simply move the tool for-
ward 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.
Guide rule
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 thewingbolt on the front of the base.
It also makes repeated cuts of uniform
width possible.
MA1NTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbeforeattempting to perform
inspectionor maintenance.
The tool will stop when thecarbon brusheswear to
a certain length.
When this occurs, bothcarbon brushesshould be replaced.
To maintain product SAFETY and RELlABlLITY, repairs, carbon brush inspection
and replacement, any other maintenance or adjustment should be performed by Makita
Authorized or FactoryService Centers, always usingMakitareplacementparts.
9

ACCESSORI ES
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.
The accessories or attachmentsshould be used only in the proper and intendedmanner.
792239-6
0 Guide rule
Part No. 164095-8
518“ 20
185
(7-114,,)
0 Wrench 9
Part No. 781401-8
0 Socket wrench 9
Part No. 782209-3
0 Chisel tooth combination saw blade
Diameter Hole No.
I diameter 1 teeth
Part
NO. I
0 Carbide-tippedsaw blade
Faster, smoother, longersawing
without bladesharpening.
Cuts wood, dry wall, plastic
hardwood, etc.
~~
Hole No.
Part No. I D:cGTer I diameter I teeth
10

Feb.-O6-'89 US
185 mm (7-1/4")
@mm CIRCULAR SAW
-
Model 5820
Note: The switch, noise suppressor and other part configurations
may differ from country
to country.
11

MODEL 5820 Feb-06-'89 US
/LM ,$&, DESCRIPTION ""df ,,!& DESCRIPTION
MACHINE
r
~
1
2
3
4
5
6
I
8
9
10
11
12
13
14
15
16
lJ
18
19
20
21
22
23
24
25
26
27
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
2
1
8
-
Wing Nut M6
Spring
Washer 6
Tension Spring 4
Cap
Square Neck Bolt M6x20
Blade Case
Woodruff Key 4
Thin Washer 8
Helical Gear 50
Sleeve 12
Ball Bearing 6201LLB
Spindle
Pan Head Screw M4x22 lWith Washer]
Rubber Sleeve 6
Pan Head Screw M6x20
Flat
Washer 38
Retaining Ring S-38
Inner Flange 40
Outer Flange 40
Hex Flange Head Bolt M6x17
Cord
Cord Guard
Strain Relief
Pan Head Screw M4xlB lWith Washer]
Motor Housing Set IWith Item 461
Tao~ina Screw BT 4x40
Plane Bearing 8
Safety cover
MACHINE
~
29
30
31
32
33
34
35
36
37
38
39
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
-
1
3
3
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
-
Note The switch and other part specifications may differ from country to country.
Switch
Pan Head Screw M4x28 lWith Washer1
Pen Head Screw M5x35 lWith Washer1
Handle Set IWith Item 351
Terminal Base Complete
Rubber Pin 4
Handle
Set IWith Item 321
0 Ring 30
Ball Bearing 6200LLB
Fan
86
ARMATURE ASSEMBLY
IWith Item 37 - 39 & 411
Ball Bearing 608LB
Flat Washer 14
0 Ring 18
Field
Carbon
Brush
Motor Housing Set lWith Item 261
Name
Plate
Cap Square Neck Bolt M6x20
Wing Bolt M6x 15
Wing Nut M6
Spring
Washer 6
Flat
Washer 6
Base
S~maPin 6-36
Comprsrslon Spmg
7
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 matenals 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 matenal, Makita will repair (or at our option,
replace) without charge
This Warranty does
not apply where:
repurr 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 CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM
OF THIS WARRANTY.
UAKITA DISCLAIMS LIABILITY FOR ANY IMPLII'D WARRANTIt S. INCLUDING IMPLIED
WARRAVTILS
OF "MERCHANTABILITY" AND 'FITNESS FOR A SPECIFIC PL'RPOSE.'
AFTER THE ONL-Y FAR TERM OF
THIS WARRANTY
Tlur Warranty gwec you spmfic legs1 nghtr and you may
also hive other nghtr uhlrh vary from
stale
10 state Some slates do not allow rh; exelusion or hmrtalion of incrdcntal or consequential
damages
IO the above lunilatron or cxclucron may no1 apply to you Some slates do not allou
limiralrdn on hou long an implied warranty lasts, so the above Irmllation may not apply lo you
Flrrtkirwnnuh,Ltd.
11-8.3-chome, Sumiyoshi-cho.Anjo, Aichi 446, Japan
883691-062
PRINTED IN JAPAN
1989 - 3 -N