Makita DOUBLE INSULATION 4320 User manual

Jig Saw
I I
174 mm
16-718")
0 - 3,200
18 mm
50 mm 6 mm
(1 1/16',)
12") I1 14")
MODEL 4320
1.3 kg
12.9 Ibs)
INSTRUCTION MANUAL
DOUBLE
INSULA1'ION
SPEC IF I CAT IONS
Strokes Overall
I Net
per minute length weight
Max. cutting capacities
Length of
stroke Steel

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING: WHEN USING ELECTRICTOOLS, BASIC SAFETY
PRECAUTIONS SHOULD ALWAYS
BE FOLLOWED TO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
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 tools torain.
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. When not
in use, tools should bestored in dry, andhigh
or locked-up place
- out of reach of children.
DON'T FORCETOOL.
It willdothejob better andsafer attheratefor which
it was intended.
USE RIGHT TOOL. Don't force small tool or attachment to do the job of a
heavy-dutytool. Don't usetoolfor purpose notintended; for example, don't
use circular saw for cutting tree limbs or logs.
DRESS PROPERLY. Don't wear loose clothing orjewelry. They can becaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when workingoutdoors. Wear protective hair covering tocontain long hair.
8. USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
9. DON'T ABUSE CORD. Nevercarry tool by cord or yank it todisconnect from
IO. SECURE WORK. Use clamps or a vise to hold work. It's safer than using
11. DON'T OVERREACH. Keep proper footing and balance at all times.
12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructions for lubricating and changing acces-
sories. Inspecttoolcords periodicallyand
if damaged, haverepairedbyautho-
rized service facility. Inspect extension cords periodically and replace if
damaged. Keep handles dry, clean, and free from oil and grease.
13. DISCONNECTTOOLS. When not in use, beforeservicing, and when chang-
ing accessories, such as blades, bits, cutters.
dusty.
receptacle. Keep cord from heat, oil, and sharp edges.
your hand and
it frees both hands to operate tool.
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14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
seethat keys and adjusting wrenches are removedfromtool beforeturning
it on.
15. AVOID UNINTENTIONALSTARTING. Don’t carry tool
with finger onswitch.
Be sure switch is
OFF when plugging in.
16. EXTENSIONCORDS. 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
inline voltage resulting
in loss of power and overheating. Table 1 shows the
correct size touse depending oncordlengthand nameplate ampere rating.
If in doubt, use the next heavier gage. The smaller the gage number, the
heavier the cord.
TABLE 1 MINIMUM GAGE FOR CORD SETS
Total Lenath of Cord in Feet
I 0 - 25 1 26 - 50 I 51 - 100 I 101 - 150
-
10 18 16 14 12
10
- 12 16 16 14 12
12
- 16 14 12 Not Recommended
17. OUTDOOR USE EXTENSIONCORDS. Whentoolis usedoutdoors, use only
extension cords intended for use outdoors and so marked.
18. STAY ALERT. Watch what you are doing, use common sense. Don’t operate
tool when you are tired.
19. 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 perform its intended function. Check for alignment of
moving parts, binding of moving parts, breakage of parts, mounting, and
any other conditions that may affect its operation. A guard or other part
that is damaged should be properly repaired or replaced by an authorized
service center unless otherwise indicated elsewhere
in this instruction
manual. Have defective switches replacedby authorizedservicecenter. Don’t
use tool if switch does not turn
it on and off.
20. GUARDAGAINST ELECTRIC SHOCK. Prevent body contact with grounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
21. REPLACEMENTPARTS.When servicing, useonly identical replacementparts.
22. POLARIZEDPLUGS. To reduce the risk of electric shock, thisequipment has
a polarized plug (one blade 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,
reversethe plug.
If it stilldoes notfit, contact aqualified electrician toinstall
the proper outlet. Do not change the plug in any way.
3

VOLTAGE WARNING: Beforeconnecting thetooltoa 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
in SERIOUS INJURY tothe user - as well as damageto
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.
ADDITIONAL SAFETY RULES
1. Avoid cuttingnails. Inspectfor and removeall nailsfrom theworkpiece before
2. Don't cut hollow pipe.
3. Do not cut oversize workpiece.
4. Checkfor the properclearancebeneaththe workpiece beforecutting so that
5. Hold the tool firmly.
6. Make sure the blade is not contacting the workpiece before the switch is
7. Keep hands away from moving parts.
8. When cutting through walls, floors or wherever "live" electrical wires may
be encountered, DO NOT TOUCH ANY METAL PARTS
OF THE TOOL!
Holdthetoolonly bythe insulatedgraspingsurfacestopreventelectric shock
if
you cut through a "live" wire.
operation.
the blade will not strike the floor, workbench, etc.
turned on.
9. Do not leave the tool running. Operate the tool only when hand-held.
IO. Always switchoff andwait for the bladetocometoa complete stop before
11. Donot touch the blade or the workpiece immediately after operation; they
removing the blade from the workpiece.
may be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
4

Installing or removing saw blade
CAUTION :
Always be sure that the tool is switched off and unplugged before installing or removing
the blade.
The blade installing position varies depending upon the type of blade being used. Install
the blade in the proper position
as shown in the figures below.
Blade holder
Blade clamp
Installing position for Makita blades
To install the blade, loosen the bolt with
the hex wrench. With the blade teeth
facing forward, insert the blade between
the blade clamp and the blade holder
as far
as it will go.
Universal blade
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Blade holder
Installing position for universal blades
Blade
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Keep the blade shank flush with the installing position so that it does not ride up on the
shoulder of the blade holder. Tighten the boltsecurely with the hex wrench.
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Blade
Correct
3lade shank rides
If blade holder.
Blade
Nrong
; up on shoulder
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Blade holder
-0 removethe blade, follow the installation procedures in reverse.
Using roller
With the hex wrench, loosenthe boltwhich
holds the base and retainer. Slide the re-
tainer
so that the roller contacts the blade,
then tighten the bolt. However, when using
a blade that does not have a straight back
(e.g., Nos. 6, 71, slide the retainer back so
that the rollerwill notcontact the blade.
CAUTION :
Use a lubricant or cutting oil between the blade and roller when cutting iron or composi-
tion board,
etc. Failure to do so will shorten the service life of your bladeand roller.
Hex wrench storage
When not in use, the hex wrench can be
conveniently stored.
6

Switch action
Tool speed is increased by increasing pres-
sure on the trigger. To start the tool, simply
pull the trigger.
Release the trigger to stop.
For continuous operation, pull
the trigger
and then push in the lock button. To stop
the tool from the locked position, pull the
trigger fully,
then release it.
Lock button
/
CAUTION :
Before plugging in the tool, always check to see that the trigger switch actuates properly
and returns to the "OFF" positionwhen released.
Operation
Turn the tool
on and wait until the blade
attains full speed. Then rest the base flat
on the workpiece and gently move the tool
forward along the previously marked cut-
ting line. When cutting curves, advance the
tool very slowly.
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CAUTION :
Failure to hold the tool base flush with the workpiece may cause blade breakage.
Bevel cutting
With the base tilted, you can make bevel
cuts
at any angle between 0" and 45" (left
or right).
7

Loosen the bolt on the back of the base
with the hex wrench and slide the base
slightly backwards. Tilt the base to the de-
sired angle. The edge of the housing indi-
cates the bevel angle. Then check the con-
tact between the back edge of the blade
and the roller. Now tighten the bolt secure-
ly on the back of the base.
\ Roller \ Edge of housing
Front flush cuts
Loosen the bolt on the back of the base
with the hex wrench, then slide the base
backwards: Check the contact betweenthe
back edge of the blade and the roller, then
secure the bolt.
Plunge cutting
Starting a cut at other than the edge of the
workpiece without first drilling
a starting
hole requires
a “plunge cut”. This can be
accomplished by tipping the tool forward
until the front end of the base rests against
the workpiece. Switch the tool on and
lower the back end of the tool slowly,
gradually allowing the bladeto saw through
the workpiece until the base
is able to sit
flat on the workpiece. You may then pro-
ceed forward with the cut in
a normal
manner.
If using
a drill for a starting hole, bore a hole over 12mm (1/2”) in diameter. Then insert
the blade in
it and proceed.
8

Usingguide rule (Ripfence)
When cutting widths
of under 150mm (6")
repeatedly, use of the guide rule will assure
fast, clean, straight cuts.
To attach the guide rule (ripfence), secure
the rule holder to the base with the screw
(do nottighten).
Insert the guide rule between the base and
the rule holder. Now tighten the screw
with the hex wrench.
Usingcircular guide
Use
of the circular guide insures clean,
smooth cutting of circles (radius, under
200 mm; 7-7/8") and arcs.
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Circular guide
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To attach the circular guide, use the pin,
inserting
it in the center hole (arrow) and
secure
it with the threaded knob. Then
slide the base of the tool forwards. The
circular guide attaches to the base of the
tool in the same manner
as the guide rule
(ripfence).
Metal cutting
Always use a suitable coolant (cutting oil)
when cutting metal. Failure to do
so will
cause significant bladewear.
Fit pin into
the
hole
Pin for
circular guide
b
The underside of the workpiece can be
greased instead
of using a coolant.
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