makita JN3201 Nibbler Grignoteuse Roedora Instruction Manual

: June 4, 2024
: Makita

Table of Contents

makita JN3201 Nibbler Grignoteuse Roedora
SPECIFICATIONS
General Power Tool Safety
FUNCTIONAL DESCRIPTION
ASSEMBLY
OPERATION
MAINTENANCE
MAKITA LIMITED ONE YEAR WARRANTY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

makita JN3201 Nibbler Grignoteuse Roedora

SPECIFICATIONS

Model	JN3201

Max. cutting capacities

| Mild steel| 3.2 mm / 10 ga
Stainless| 2.5 mm / 13 ga
Aluminum| 3.5 mm / 10 ga

Min. cutting radius

Due to our continuing program of research and development, the specifications herein are subject to change without notice.
Specifications may differ from country to country.
Weight according to EPTA-Procedure 01/2003

General Power Tool Safety

Warnings

WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions 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

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
Electrical Safety
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. Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
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.
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.
If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of an GFCI reduces the risk of electric shock.
Personal Safety
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 influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
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 finger on the switch or energising power tools that have the switch on invites accidents.
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.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
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 dustrelated hazards.
Power tool use and care
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.
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.
Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children 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.
Maintain power tools. Check for misalignment or binding of moving parts, breakage 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.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking 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.
Service
Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
Follow instruction for lubricating and changing accessories.
Keep handles dry, clean and free from oil and grease.

USE PROPER EXTENSION CORD. 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 in line voltage resulting in loss of power and overheating. Table 1 shows the correct size to use depending on cord length and 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

Ampere Rating

| Volts| Total length of cord in feet
---|---|---
120V| 25 ft.| 50 ft.| 100 ft.| 150 ft.
220V – 240V| 50 ft.| 100 ft.| 200 ft.| 300 ft.
More Than| Not More Than| AWG
0| 6| | 18| 16| 16| 14
6| 10| 18| 16| 14| 12
10| 12| 16| 16| 14| 12
12| 16| 14| 12| Not Recommended

NIBBLER SAFETY WARNINGS

Hold the tool firmly.
Secure the workpiece firmly.
Keep hands away from moving parts.
Edges and chips of the workpiece are sharp.
Wear gloves. It is also recommended that you put on thickly bottomed shoes to prevent injury.
Do not put the tool on the chips of the workpiece. Otherwise it can cause damage and trouble on the tool.
Do not leave the tool running. Operate the tool only when hand-held.
Always be sure you have a firm footing.
Be sure no one is below when using the tool in high locations.
Do not touch the punch, die or the workpiece immediately after operation; they may be extremely hot and could burn your skin.
Avoid cutting electrical wires. It can cause serious accident by electric shock.

WARNING:
DO NOT let comfort or familiarity 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.

Symbols
The followings show the symbols used for tool.

volts

amperes

hertz

alternating current

no load speed

Class II Construction

revolutions or reciprocation per minute

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

Stainless steel gauge 2.5 mm (3/32″)
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 fit into this groove.

Max.cutting capacities	mm	ga
Steel up to 400 N/mm2	3.2	10
Steel up to 600 N/mm2	2.5	13
Steel up to 800 N/mm2	1.0	20
Aluminum up to 200 N/mm2	3.5	10

Switch action

Switch trigger
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 firm 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

Wrench
Lock nut
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.

Punch
Screw
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 fits 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.

Cutting edge
Punch
Groove
Punch holder
Pin

OPERATION

CAUTION:

Hold the tool firmly 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.

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 (32.8 feet) 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 first opening a round hole of about 42 mm (1-5/8″) diameter or more in the material.

Cutting stainless steel

Screw
Hex wrench
Washer
Insert washer in between
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 indicated in the accompanying table. Their life, of course, depends upon the thickness of materials cut and lubrication conditions.

Punch	Replace after 150 m (492 ft.) of 3.2 mm (1/8″) steel sheet
Die	Sharpen after 300 m (984 ft.) of 3.2 mm (1/8″) steel sheet

When cutting is poor even after replacing the punch, sharpen the die. Grind down the dull edge shown in the figure using a grinder. After rough-grinding the dull portion, finish with a dressing stone. Stock removal should be about 0.3 to 0.4 mm (1/64″).

Grind/sharpen; 0.3 – 0.4 mm (1/64″)
Remove dull portion

When installing ground die, a clearance of 3.5 to 4.0 mm (1/8″ to 5/32″) should be obtained by attaching one or two of the washer provided, as shown in the figure. Failure to have the proper clearance will result in vibration during cutting.

3.5 -4.0 mm (1/8″ – 5/32″)
Die
Washer

CAUTION:

Secure installing screws carefully when installing.
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

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.

Screwdriver
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 performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

OPTIONAL ACCESSORIES

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. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding 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.

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 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.

This Warranty does not apply where:

repairs 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 CONSEQUENTIAL DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND AFTER THE TERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,” AFTER THE ONE YEAR TERM OF THIS WARRANTY.
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.

WARNING

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

lead from lead-based paints,
crystalline silica from bricks and cement and other masonry products, and
arsenic and chromium from chemically treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well-ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
www.makita.com

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