Makita JN3201 User manual

INSTRUCTION MANUAL
Nibbler
JN3201
ENGLISH: Original instructions
DOUBLE INSULATION
Read before use.

2ENGLISH
SPECIFICATIONS
Model JN3201
Max. cutting capacities Steel up to 400 N/mm23.2 mm / 10 ga
Steel up to 600 N/mm22.5 mm / 13 ga
Steel up to 800 N/mm21.0 mm / 20 ga
Aluminum up to 200 N/mm23.5 mm / 10 ga
Min. cutting radius Outside edge 128 mm
Inside edge 120 mm
Strokes per minute (min-1)1,300
Overall length 225 mm
Net weight 3.4 kg
Safety class /II
• Due to our continuing program of research and development, the specications herein are subject to change without notice.
• Specications may differ from country to country.
• Weight according to EPTA-Procedure 01/2014
Symbols
The followings show the symbols used for the equipment.
Be sure that you understand their meaning before use.
Read instruction manual.
DOUBLE INSULATION
Only for EU countries
Do not dispose of electric equipment
together with household waste material! In
observance of the European Directive, on
Waste Electric and Electronic Equipment
and its implementation in accordance with
national law, electric equipment that have
reached the end of their life must be col-
lected separately and returned to an envi-
ronmentally compatible recycling facility.
Intended use
The tool is intended for cutting sheet steel and stainless sheet steel.
Power supply
The tool should be connected only to a power supply of the same
voltage as indicated on the nameplate, and can only be operated
on single-phase AC supply. They are double-insulated and can,
therefore, also be used from sockets without earth wire.
Noise
The typical A-weighted noise level determined accord-
ing to EN62841-2-8:
Sound pressure level (LpA) : 98 dB(A)
Sound power level (LWA) : 109 dB (A)
Uncertainty (K) : 3 dB(A)
NOTE: The declared noise emission value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may
also be used in a preliminary assessment of exposure.
WARNING: Wear ear protection.
WARNING: The noise emission during actual
use of the power tool can differ from the declared val-
ue(s) depending on the ways in which the tool is used
especially what kind of workpiece is processed.
WARNING: Be sure to identify safety measures
to protect the operator that are based on an estima-
tion of exposure in the actual conditions of use (tak-
ing account of all parts of the operating cycle such
as the times when the tool is switched off and when
it is running idle in addition to the trigger time).
Vibration
The vibration total value (tri-axial vector sum) deter-
mined according to EN62841-2-8:
Work mode: cutting sheet metal
Vibration emission (ah,M) : 10.0 m/s2
Uncertainty (K) : 1.5 m/s2
NOTE: The declared vibration total value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
NOTE: The declared vibration total value(s) may also
be used in a preliminary assessment of exposure.
WARNING: The vibration emission during actual
use of the power tool can differ from the declared val-
ue(s) depending on the ways in which the tool is used
especially what kind of workpiece is processed.
WARNING: Be sure to identify safety measures
to protect the operator that are based on an estima-
tion of exposure in the actual conditions of use (tak-
ing account of all parts of the operating cycle such
as the times when the tool is switched off and when
it is running idle in addition to the trigger time).
EC Declaration of Conformity
For European countries only
The EC declaration of conformity is included as Annex A
to this instruction manual.

3ENGLISH
General power tool safety warnings
WARNING: Read all safety warnings, instruc-
tions, illustrations and specications provided
with this power tool. Failure to follow all instructions
listed below may result in electric shock, re and/or
serious injury.
Save all warnings and instruc-
tions for future reference.
The term "power tool" in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
Work area safety
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
3. Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
Electrical Safety
1. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodied plugs and matching outlets will
reduce risk of electric shock.
2. Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of elec-
tric shock if your body is earthed or grounded.
3. Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
4. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords
increase the risk of electric shock.
5. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of
a cord suitable for outdoor use reduces the risk of
electric shock.
6. If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD reduces
the risk of electric shock.
7. Use of power supply via an RCD with a rated
residual current of 30 mA or less is always
recommended.
8. Power tools can produce electromagnetic
elds (EMF) that are not harmful to the user.
However, users of pacemakers and other similar
medical devices should contact the maker of their
device and/or doctor for advice before operating
this power tool.
9. Do not touch the power plug with wet hands.
10. If the cord is damaged, have it replaced by the
manufacturer or his agent in order to avoid a
safety hazard.
Personal Safety
1. Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or
under the inuence of drugs, alcohol or med-
ication. A moment of inattention while operating
power tools may result in serious personal injury.
2. Use personal protective equipment. Always
wear eye protection. Protective equipment such
as a dust mask, non-skid safety shoes, hard hat or
hearing protection used for appropriate conditions
will reduce personal injuries.
3. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your nger on the switch or energising power tools
that have the switch on invites accidents.
4. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
5. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair and clothing away
from moving parts. Loose clothes, jewellery or
long hair can be caught in moving parts.
7. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
8. Do not let familiarity gained from frequent use
of tools allow you to become complacent and
ignore tool safety principles. A careless action
can cause severe injury within a fraction of a
second.
9. Always wear protective goggles to protect
your eyes from injury when using power tools.
The goggles must comply with ANSI Z87.1 in
the USA, EN 166 in Europe, or AS/NZS 1336
in Australia/New Zealand. In Australia/New
Zealand, it is legally required to wear a face
shield to protect your face, too.
It is an employer's responsibility to enforce
the use of appropriate safety protective equip-
ments by the tool operators and by other per-
sons in the immediate working area.

4ENGLISH
Power tool use and care
1. Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
2.
Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source
and/or remove the battery pack, if detachable,
from the power tool before making any adjust-
ments, changing accessories, or storing power
tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of chil-
dren and do not allow persons unfamiliar with
the power tool or these instructions to operate
the power tool. Power tools are dangerous in the
hands of untrained users.
5.
Maintain power tools and accessories. Check for
misalignment or binding of moving parts, break-
age of parts and any other condition that may
affect the power tool’s operation. If damaged, have
the power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
6. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits
etc. in accordance with these instructions, tak-
ing into account the working conditions and
the work to be performed. Use of the power tool
for operations different from those intended could
result in a hazardous situation.
8. Keep handles and grasping surfaces dry,
clean and free from oil and grease. Slippery
handles and grasping surfaces do not allow for
safe handling and control of the tool in unexpected
situations.
9. When using the tool, do not wear cloth work
gloves which may be entangled. The entangle-
ment of cloth work gloves in the moving parts may
result in personal injury.
Service
1. Have your power tool serviced by a qualied
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
2. Follow instruction for lubricating and chang-
ing accessories.
NIBBLER SAFETY WARNINGS
1. Hold the tool rmly.
2. Secure the workpiece rmly.
3. Keep hands away from moving parts.
4.
Edges and chips of the workpiece are sharp.
Wear gloves. It is also recommended that you
put on thickly bottomed shoes to prevent injury.
5. Do not put the tool on the chips of the work-
piece. Otherwise it can cause damage and
trouble on the tool.
6. Do not leave the tool running. Operate the tool
only when hand-held.
7. Always be sure you have a rm footing.
Be sure no one is below when using the tool in
high locations.
8. Do not touch the punch, die or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
9. Avoid cutting electrical wires. It can cause
serious accident by electric shock.
SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or famil-
iarity with product (gained from repeated
use) replace strict adherence to safety
rules for the subject product. MISUSE or
failure to follow the safety rules stated in
this instruction manual may cause serious
personal injury.
FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Permissible cutting thickness
1
2
► 1. Stainless steel gauge 2.5 mm (3/32") 2. Mild steel
gauge 3.2 mm (1/8")
The thickness of material to be cut depends upon the
tensile strength of the material itself. The groove on
the die holder acts as a thickness gauge for allowable
cutting thickness. Do not attempt to cut any material
which will not t into this groove.
Max.cutting capacities mm ga
Steel up to 400 N/mm
2
3.2 10
Steel up to 600 N/mm
2
2.5 13
Steel up to 800 N/mm
2
1.0 20
Aluminum up to 200 N/mm
2
3.5 10

5ENGLISH
Switch action
12
► 1. Switch trigger 2. Lock button
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
•
Switch can be locked in "ON" position for ease of operator
comfort during extended use. Apply caution when locking
tool in "ON" position and maintain rm grasp on tool.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and
then push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Punch replacement
1
2
3
► 1. Wrench 2. Lock nut 3. Die holder
Fit the wrench provided onto the lock nut and tap the handle lightly
with a hammer to loosen the lock nut. Take off the die holder and
use a wrench to remove the screw. Then remove the punch.
1
23
► 1. Punch 2. Screw 3. Wrench
To install the punch, insert it into the punch holder with
its cutting edge facing forward so that the pin in the
punch holder ts into the groove in the punch. Install the
screw and lock nut. Then tighten them securely.
NOTE:
• When installing the screw and lock nut, be sure
to tighten securely. If they become loose during
operation, the tool may break down.
1
23
4
5
► 1. Cutting edge 2. Punch 3. Groove 4. Punch holder
5. Pin
OPERATION
CAUTION:
• Hold the tool rmly with one hand on the main
handle when performing the tool.
Pre-lubrication
Coat the cutting line with machine oil to increase the
punch and die service life. This is particularly important
when cutting aluminum.

6ENGLISH
Cutting method
Smooth cutting is achieved by holding the tool upright
and applying gentle pressure in the cutting direction.
Apply tool oil to the punch about every 10 meters of mild steel or
stainless steel to be cut. Light oil or kerosene should be used to
keep an aluminum lubricated continuously. Failure to lubricate
aluminum in the cut will cause chips to adhere to the tool, dulling
the die and punch and increasing load on the motor.
Cutouts
Cutouts can be done by rst opening a round hole of
about 42 mm diameter or more in the material.
Cutting stainless steel
1
2
3
4
5
► 1. Screw 2. Hex wrench 3. Washer 4. Insert washer
in between 5. Die
There is more vibration when cutting stainless steel than mild
steel. Less vibration and better cutting is possible by adding
another washer (standard equipment) beneath the die.
Use the hex wrench provided to remove the two screws and insert
the washer below the die. Replace screws and tighten securely.
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and unplugged
before attempting to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
The tool and its air vents have to be kept clean.
Regularly clean the tool's air vents or whenever the
vents start to become obstructed.
Punch & die service life
Replace or sharpen punch and die after cutting the lengths indi-
cated in the accompanying table. Their life, of course, depends
upon the thickness of materials cut and lubrication conditions.
Punch Replace after 150 m of 3.2 mm steel sheet
Die Sharpen after 300 m of 3.2 mm steel sheet
When cutting is poor even after replacing the punch, sharpen
the die. Grind down the dull edge shown in the gure using
a grinder. After rough-grinding the dull portion, nish with a
dressing stone. Stock removal should be about 0.3 to 0.4 mm.
1
2
► 1. Grind/sharpen; 0.3 - 0.4 mm (1/64") 2. Remove
dull portion
When installing ground die, a clearance of 3.5 to 4.0 mm
should be obtained by attaching one or two of the washer
provided, as shown in the gure. Failure to have the
proper clearance will result in vibration during cutting.
1
2
3
► 1. 3.5 -4.0 mm (1/8" - 5/32") 2. Die 3. Washer

7ENGLISH
CAUTION:
• Secure installing screws carefully when install-
ing. A loose screw can cause tool breakage
during operation.
NOTE:
• The die can be sharpened two times. After two
sharpenings, it should be replaced with new
one.
Replacing carbon brushes
1
► 1. Limit mark
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.
1
2
► 1. Screwdriver 2. Brush holder cap
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 per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
OPTIONAL
ACCESSORIES
CAUTION:
• These accessories or attachments are recom-
mended for use with your Makita tool specied
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 regard-
ing these accessories, ask your local Makita Service
Center.
• Die
• Punch
• Hex wrench
• Wrench 50
• Die height adjustment washer
NOTE:
• Some items in the list may be included in the
tool package as standard accessories. They
may differ from country to country.

www.makita.com
Makita Europe N.V.
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japa
n
Jan-Baptist Vinkstraat 2,
3070 Kortenberg, Belgium
885172A226
EN
20190121