makita JN3201 10 Gauge Nibbler Instruction Manual

JN3201
Nibbler
INSTRUCTION MANUAL

Original instructions

Explanation of general view

1-1. Stainless steel gauge 2.5 mm (3/32″)
1-2. Mild steel gauge 3.2 mm (1/8″)
2-1. Switch trigger
2-2. Lock button
3-1. Wrench
3-2. Lock nut
3-3. Die holder
4-1. Punch
4-2. Screw| 4-3. Wrench
5-1. Cutting edge
5-2. Punch
5-3. Groove
5-4. Punch holder
5-5. Pin
8-1. Screw
8-2. Hex wrench
8-3. Washer
8-4. Insert washer in between| 8-5. Die
9-1. Grind/sharpen; 0.3 – 0.4 mm (1/64″)
9-2. Remove dull portion
10-1. 3.5 -4.0 mm (1/8″ – 5/32″)
10-2. Die
10-3. Washer
11-1. Limit mark
12-1. Screwdriver
12-2. Brush holder cap
---|---|---

SPECIFICATIONS

• 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

E037-1

Intended use
The tool is intended for cutting sheet steel and stainless sheet steel.

F002-2
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 a single-phase AC supply. They are double-insulated and can, therefore, also be used from sockets without earth wire.

G905-1
Noise
The typical A-weighted noise level is determined according to EN60745:
Sound pressure level (LpA): 81 dB(A)
Sound power level (LWA): 92 dB(A)
Uncertainty (K) : 3 dB(A)
Wear ear protection

G900-1
Vibration
The vibration total value (tri-axial vector sum) determined according to EN60745:

Work mode : cutting sheet metal
Vibration emission (ah) : 10.0 m/s²
Uncertainty (K) : 1.5 m/s²

901-1

• The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
• The declared vibration emission value 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 emission value depending on the ways in which the tool is used.
• Be sure to identify safety measures to protect the operator that is based on an estimation of exposure in the actual conditions of use (taking 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).

H101-16
For European countries only

EC Declaration of Conformity

We Makita Corporation as the responsiblemanufacturer declare that the following Makitamachine(s):
Designation of Machine:
Nibbler
Model No./ Type: JN3201 are of series production and
Conforms to the following European Directives: 2006/42/EC
And are manufactured in accordance with the following standards or standardized documents:
60745
The technical documentation is kept by:
Makita International Europe Ltd.
Technical Department,
Michigan Drive, Tongwell,
Milton Keynes, Bucks MK15 8JD, England

17.5.2012
Tomoyasu Kato
Director
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi, 446-8502, JAPAN

GEA010-1

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.

GEB028-2

NIBBLER SAFETY WARNINGS

1. Hold the tool firmly.

2. Secure the workpiece firmly.

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 workpiece. Otherwise, it can cause damage and trouble to the tool.

6. Do not leave the tool running. Operate the tool only when hand-held.

7. Always be sure you have a firm footing.
   Be sure no one is below when using the tool in high locations.

8. Do not touch the punch, die, or workpiece immediately after operation; they may be extremely hot and could burn your skin.

9. Avoid cutting electrical wires. It can cause a serious accident by electric shock.

SAVE THESE INSTRUCTIONS.

WARNING:
DO NOT let comfort or familiarity with the 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
Fig.1
The thickness of the 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.

006439

Switch action
Fig.2
CAUTION:

• Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.

The switch can be locked in the “ON” position for ease of operator comfort during extended use. Apply caution when locking the tool in the “ON” position and maintain a firm grasp on the 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
Fig.3
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.
Fig.4
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.
  Fig.5

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
Fig.6
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 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 the load on the motor.

Cutouts
Fig.7
Cutouts can be done by first opening a round hole of about 42 mm diameter or more in the material.
Cutting stainless steel
Fig.8
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, benzene, 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.

006441

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.
Fig.9
When installing a ground die, clearance of 3.5 to 4.0 mm 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.
Fig.10

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 a new one.

Replacing carbon brushes
Fig.11
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.
Fig.12
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, and any other maintenance or adjustment should be performed by Makita Authorized 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 Corporation
Anjo, Aichi, Japan
www.makita.com
885172-973

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