Makita JS3201 Metal Shear Instruction Manual

makita JS3201 Metal Shear Instruction Manual

Explanation of general view

    1. Switch trigger
    2. Lock button
    1. Gauge for stainless: 2.5 mm (3/32″)
    2. Gauge for mild steel: 3.2 mm (1/8″)
    1. Hex wrench
    2. Lower blade
    3. Upper blade securing bolt
    4. Upper blade
    1. Tighten
    2. Upper blade securing bolt
    3. Upper blade
    1. Blade holder
    2. Upper blade securing bolt
    3. Upper blade
    4. No gap allowed
    1. Lower blade positioning bolt
    2. Lower blade
    3. Upper blade
    1. Lower blade positioning bolt
    2. Hex nut
    3. Thickness gauge
    1. Workholder
  9. /
  10. Cutting line
  11. Limit mark
    1. Screwdriver
    2. Brush holder cap

SPECIFICATIONS

Model JS3201
Max. cutting capacities Steel up to 400 N/mm2 3.2 mm (10 ga.)
Steel up to 600 N/mm2 2.5 mm (13 ga.)
Steel up to 800 N/mm 2 1.5 mm (17 ga.)
Aluminum up to 200 N/mm2 4.0 mm (9 ga.)
Min. cutting radius 50 mm
Strokes per minute (min-1) 1,600
Overall length 213 mm
Net weight 3.4 kg
Safety class
° /11
  • 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

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 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 

Vibration

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

Work mode : cutting sheet metal
Vibration emission (ah) : 17.0 m/s2
Uncertainty (K) : 1.5 m/s2

  • 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 are 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).

For European countries only 

EC Declaration of Conformity

We Makita Corporation as the responsible manufacturer declare that the following Makita machine(s):

Designation of Machine: Metal Shear Model No./ Type: JS3201 are of series production and Conforms to the following European Directives: 2006/42/EC

And are manufactured in accordance with the following standards or standardised documents: EN60745

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

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.

SHEAR 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 on 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 blade 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.
  10. Do not operate the tool at no-load unnecessarily

SAVE THESE INSTRUCTIONS. 

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.

FUNCTIONAL DESCRIPTION

CAUTION

Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool.

Switch action 

Fig.1

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.

Permissible shearing thickness

Fig.2

The groove on the yoke serves as a thickness gauge for shearing mild or stainless steel plate. If the material fits within the groove, it is shearable.
The thickness of materials to be sheared depends upon the type (strength) of the material. The maximum shearing thickness is indicated in the table below in terms of various materials. Attempting to shear materials thicker than indicated will result in tool breakdown and/or possible injury. Keep within the thickness shown in the table.

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 1.5 17
Aluminum up to 200 N/mm2 4.0 9

ASSEMBLY

CAUTION

  • Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Blade inspection 

Before using the tool, check the blades for wear. Dull, worn blades will result in poor shearing action, and the service life of the tool will be shortened.

The service life of the blades varies in terms of the materials to be cut and the fixed blade clearance. Roughly speaking, a blade can cut about 500 m of 3.2 mm mild steel with one cutting edge (total 2,000 m with four cutting edges).

Rotating or replacing blades

Both the upper and lower blades have four cutting edges on each side (the front and back). When the cutting edge becomes dull, rotate both the upper and the lower blades 90° to expose new cutting edges. When all eight edges are dull on both the upper and lower blades, replace both blades with new ones. Each time blades are rotated or replaced, proceed as follows.

Remove the blade securing bolts with the hex wrench provided and then rotate or replace the blades.

Fig.3

Install the upper blade and tighten the upper blade securing bolt with the hex wrench. Press up on the upper blade while tightening it.

Fig.4

After securing the upper blade, be sure that there is no gap left between the upper blade and the beveled surface of the blade holder.

Fig.5

Then install the lower blade like the upper blade while adjusting the clearance between the upper blade and lower blades. When performing this adjustment, the upper blade should be in the lowered position.

Fig.6

First, semi- tighten the lower blade securing bolt, then insert the thickness gauge for the desired clearance. The cutting thickness is indicated on the thickness gauge so the combinations shown in the table below should be used. Work the lower blade positioning bolt on the yoke until the clearance is such that the thickness gauge moves only with some difficulty. Then firmly tighten the lower blade securing bolt. Finally, tighten the hex nut to secure the lower blade positioning bolt

Fig.7

Thickness gauge combinations 

Material thickness 2.3 mm (14 ga.) 2.5 mm (13 ga.) 3.2 mm (10 ga.)
Thickness gauge combinations 1.0 +1.5 1.0 +1.5 1.5 + 2.0

OPERATION

CAUTION

  • When cutting, always place the shear on the workpiece so that the material cut away is positioned on the right side to the operator.
  • Hold the tool firmly with one hand on the main handle when performing the tool.

Holding material 

The materials for cutting should be fastened to the workbench by means of workholders.

Fig.8

Shearing method 

For smooth cuts, tip the tool slightly backward while advancing it.

Fig.9

Maximum cutting width 

Stay within the specified maximum cutting width (A): Case of length 1,800 mm.

Fig.10

Mild steel (thickness) 3.2 mm Under 2.3 mm
Max. cutting width (A 90 mm No limit
Stainless (thickness) 2.5 mm Under 2.0 mm
Max. cutting width (A) 70 mm No limit

Minimum cutting radius

Minimum cutting radius is 50 mm when cutting 2.3 mm mild steel.

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.

Replacing carbon brushes 

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.11

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 Service Centers, always using Makita replacement parts

Fig.12

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.

  • Blades
  • Hex wrench
  • Thickness gauge

NOTE: 

Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.