Makita 43901D User manual

Cordless Recipro Saw
Length
of
stroke
15”
W16”)
MODEL 43901)
MODEL 4390DW
With Fast Charger
Max. cutting capacities
Strokes Overall Net
per length weight
Pipe
Outer dia.
x Thickness
Soft wood Hard wood minute
24 mm 12 mm 40 mm x 2 mm 343 mm 1.4 kg
(15/16”) (1/2”l (1-518’’ x 5/64”) 2’700 (13-1/2”) (3.1 Ibs)
INSTRUCTION MANUAL
Voltage
9.6 V
SPECIFICATIONS
Charging time Input output
1 Hr.
A.C. only 50 Hz - 60 Hz
D.C. 7.2 V, 9.6 V
Model 4390D

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USING ELECTRIC TOOLS, BASIC SAFE-
TY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO
SONAL INJURY, INCLUDING THE FOLLOWING:
REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,
AND PER-
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
a.
9.
10.
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. Keepwork area well lit. Don't expose powertools to rain.
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, toolsshouldbe stored in dry, and high
or locked-up place - out of reach of children.
DON'T FORCETOOL.
It willdo thejob better and safer atthe ratefor which
it was intended.
USE RIGHT TOOL. Don't force smalltool
or attachment to do the job of a
heavy-duty tool. Don't use tool for purpose not intended.
DRESS PROPERLY. Don't wear looseclothing
or jewelry. They canbecaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair coveringtocontain long hair.
USE SAFETY GLASSES. Also use face
or dust mask if cutting operationis
dusty.
DON'T ABUSE CORD. Never carrytoolby cord
or yank it todisconnectfrom
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 instructions for lubricating and changing acces-
sories. Inspecttoolcords periodicallyand if damaged, have repaired
by autho-
rized service facility. Inspect extension cords periodically and replace
if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. Whennot
in use, beforeservicing, and when chang-
ing accessories, such as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keysandadjustingwrenches are removedfromtoolbeforeturning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry plugged-intoolwithfinger
on switch. Be sure switch is
OFF when plugging in.
16. OUTDOORUSEEXTENSIONCORDS. When tool isusedoutdoors, use only
extension cords intended for use outdoors and so marked.
17. STAY ALERT. Watch what you aredoing, usecommon sense. Don't operate
tool when you are tired.
18. CHECK DAMAGEDPARTS. 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, bindingof 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 unlessotherwise indicatedelsewhere
in this instruction manual.
Have defective switches replaced by authorized service center. Don't use
tool
if switch does not turn it on and off.
19. GUARDAGAINST ELECTRIC SHOCK. Preventbody contact with grounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
20. REPLACEMENTPARTS. When servicing, useonlyidenticalreplacementparts.
VOLTAGE WARNING: Before connectingthe tooltoa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplateof the tool. A power source with voltage greater than that specified
for the tool can result
in SERIOUS 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.
Recyclingthe Battery
The only way to disposeof a Makitabattery is
to recycle it. The law prohibits any other
method of disposal.
Ni-Cd
I
To recyclea battery:
1.
Removethe battery from the tool.
2. a). Takethe batteryto your nearest MakitaFactory Service Center
or
Distributorthat has beendesignatedas aMakitabatteryrecyclinglocation.
Callyour nearestMakita Service Centeror Distributor to determinethe
location thatprovides Makitabattery recycling. Seeyour local Yellow Pages
under "Tools
- Electric.
b). Takethe batteryto your nearest MakitaAuthorized ServiceCenteror
3

IMPORTANT SAFETY INSTRUCTIONS
Length of Cord (Feet)
AWG Size of Cord
I. SAVE THESE INSTRUCTIONS - This manual
25 50 100 150
18 18 18 16
9.
Do not operate charger withdamaged cord or plug - replace them imme-
diately.
IO. Do not operate charger if it has received a sharp blow, been dropped, or
otherwise damaged
in any way; take it to a qualified serviceman.
11. Do not disassemble charger or battery cartridge; take it to a qualified
serviceman when service or repair
is required. Incorrect reassembly may
result
in a risk of electric shock or fire.
12. To reduce risk of electric shock, unplug charger from outlet before attemp-
ting any maintenanceor cleaning. Turning off controls will not reduce this
risk.
4

ADDITIONAL SAFETY RULES
FOR CHARGER & BATTERY CARTRIDGE
1. Do not charge Battery Cartridge when temperature is BELOW 10°C (5OOF)
2. Donotattempt touseastep-uptransformer, an enginegeneratoror DCpower
3. Do not allow anything to cover or clog the charger vents.
4. Always cover the battery terminals withthe battery cover when the battery
5. Do not short the battery cartridge:
or ABOVE 4OoC
(104OF).
receptacle.
cartridge is not used.
(I) Do not touch the terminals with any conductive material.
(2) Avoidstoring battery cartridge in acontainerwithother metalobjects such
(3) Do not expose battery cartridge to water or rain.
as nails, coins, etc.
A batteryshort cancausea largecurrentflow, overheating,possibleburns
and even a breakdown.
6. Do not store the tooland Battery Cartridge in locations where the tempera-
7. Do not incinerate the Battery Cartridge even if it is severely damaged or is
ture may reach or exceed 5OoC
(122OF).
completely worn out. The battery cartridge can explode in a fire.
ADDITIONAL SAFETY RULES
1. Avoid cuttingnails. Inspectfor and remove all nailsfrom the workpiece be-
2. Do not cut oversize workpiece.
3. Check for the properclearancebeyondthe workpiece beforecutting so that
4. Hold the tool firmly.
5. Make sure the blade is not contacting the workpiece before the switch is
6. Keep hands away from moving parts.
7. When cuttingthrough walls, floors or wherever "live" electricalwires may
be encountered, DO NOT TOUCH ANY METAL PARTS
OF THE TOOL!
Hold the toolonly by the insulatedgraspingsurfacestopreventelectric shock
if you cut through a "live" wire.
fore operation.
the blade will not strike the floor, workbench, etc.
turned on.
8. Do not leave the tool running. Operate the tool only when hand-held.
9. Always switchoff andwait for the bladetocome toa complete stop before
10. Do nottouchthe blade or the workpiece immediatelyafter operation; they
removing the blade from the workpiece.
may be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
5

Installingor removingbattery cartridge
0 Always switch off the tool before insertionor removal of the battery cartridge.
*To remove the battery cartridge, pull out
the
set plate on the tool and grasp both
sides of the cartridge while withdrawing
it from the barrel.
.To insert
the battery cartridge, align the
tongue on the battery cartridge with the
groove in the housing and slip
it into
place. Snap the
set plate back intoplace.
Be sure to close
the set platefully before
usingthe tool.
0 Do notuse force when insertingthe batterycartridge.
Ifthe cartridge does notslide ineasily,
it is notbeinginsertedcorrectly.
Charging
Plug
the fast charger into your power
source. Insert the battery cartridge
so that
the plus and minus terminals on the bat-
tery cartridge are on the same sides
as their
respective makrings on the fast charger.
Insert the cartridge fully into the port
so
that it rests on the charger portfloor.
Press the start button (red). The charging
light will come on and chargingwill begin.
If
the charging light does not come on,
press the reset button (yellow) first, then
the start button (red). If the charginglight
goes out within
10 seconds even after pressingthe reset button and start button a couple
of times, the battery cartridge
is dead. (CAUTION: Wait for more than 5 seconds after
the charging light
goes out to press the reset button again.) Replace it with a new one.
When the charginglight goes out after about one hour, you may remove the fully charged
batterycartridge.
After charging, unplugthe charger from the power source.
CAUTION
:
0 Your new batterycartridge is notcharged. You will need tocharge it before use.
0 Do not keep the button pressed in with tape, etc. or the circuit will not function pro-
perly. Also,
a malfunction of the charger may result possibly causing overheating, etc.
0 Ifyou try to charge a cartridge from a just-operatedtool, sometimes the charging light
will not come on. If this occurs, let the cartridge cool off for a while. Then re-insert it
and try to charge it once more.
6

If you wishto chargetwo batterycartridges,allow 15 minutesbetweenchargingsonthe
fast charger.
Installingor removing
saw blade
CAUTION:
Always be sure that the tool
is switched off and the battery cartridge is removed before
installingor removingthe blade.
Loosenthebladesecuringboltfullywiththe
hex wrench.Keepthebackedgeoftheblade
against the roller and insert the blade be-
tweenthe blade clampand the slider
as far
as itwillgo. Makesurethatyouare inserting
the blade intothe proper position.
Fit the pin on the slider inthe hole inthe
blade shank.
Note
:
The hole in the blade shank will be aligned
with the pin on the slider when the blade
shank hits against the spring pin on the
slider.
Tighten the bolt securely while making
sure that the blade will not be extracted
even though you try topull
it out.
CAUTION
:
If you tighten the bolt without the pin
on the slider fitting properly in the hole
in the blade shank, the pin or the blade
shank will be damaged. This may cause the
blade to be extracted unexpected
I y during
operation.
Roller
Blade clamp
Blade
Blade clamp
Blade shank
Slider
Hex. wrench y <Shae
I
21
To remove the blade, follow the installationprocedures in reverse.
7

After use, return the hex wrench to the
storageposition.
Switch action
To prevent the trigger from being acciden-
tally pulled,
a lock-off lever is provided
as a safety feature.
To start the tool, slide the lock-off lever
in the direction of the arrow and pull the
trigger.
Release the trigger to stop.
I
\ Hex wrench
\
Trigger switch
CAUTION :
Before insertingthe battery cartridge into the tool, always check to see that the trigger
switchactuatesproperlyand returnsto the
"OFF" positionwhen released.
Operation
Turn the tool on and wait until the blade attains full speed. Then press the shoe against
the workpiece and apply pressure to cut the workpiece.
CAUTION
:
0 Be sure towear gloves duringoperation.
0 Excessive pressure that causes bendingor twisting of the blade may snap it.
8

Metal cutting
Always use a suitable coolant (cutting
when cutting metal. Failure to do
so
cause significantblade wear.
oil)
will
CAUTION:
If the tool
is operated continuously until the battery cartridge has discharged, allow the
tool to rest for
15 minutesbeforeproceedingwith a fresh battery.
MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and the battery cartridge is removed before
attemptingto perform inspection or maintenance.
To maintain product SAFETY and RELIABILITY, repairs, maintenanceand adjustment
should be performed by Makita Authorized or Factory Service Centers, always using
Makita replacementparts.
9

OPTIONALACCESSORIES
The accessories listed inthis manual are availableat an extra cost from your Makita distributoror Makita
factory service center. Service centers are listed on the warranty card packed with your
tool.
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 attachments should be used only
in the proper and intended manner.
0 Jig saw blade
Teeth
Part No' per inch
Type Application
Overall
length
No. 71
NO. 72
100 mm
792540-9 24
(4") Mild steel, plys, masonite,
50
mm plastics, formica, etc.
792615-4 24
(5-29,32,,)
0 Fast charger
Model DC9700
Part No. 113103-2
NO. 78
NO. 79 r-,
0 Battery cartridge 9000
Part No. 632470-1
120
mm
/4-3/4")
150mm
(5-29/32")
792541-7 Ideal for wood cutting.
792616-2
0 Charger 12Vfor car
part NO. 1131 10-5
Model DC9112
0 Bettery cover
Part No. 414938-7
0 Battery holster
Holster holds extra battery.
Part
No. 823033-3C
0 Hex wrench 3
Part No. 783201-2
10