Shear
MODEL JS1600
004665
DOUBLE
INSULATION
I N S T R U C T I O N M A N U A L
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
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GENERAL SAFETY RULES
GEA001-3
WARNING:
Read all instructions. Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury. The term “power tool” in all of the
warnings listed below refers to your mains-operated (corded) power tool or battery-
operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
Work area safety
10. Use safety equipment. Always wear eye protec-
tion. Safety equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection used
for appropriate conditions will reduce personal inju-
ries.
1. Keep work area clean and well lit. Cluttered and
dark areas invite accidents.
2. Do not operate power tools in explosive atmos-
pheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
11. Avoid accidental starting. Ensure the switch is
in the off-position before plugging in. Carrying
power tools with your finger on the switch or plug-
ging in power tools that have the switch on invites
accidents.
3. Keep children and bystanders away while oper-
ating a power tool. Distractions can cause you to
lose control.
12. 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.
Electrical safety
4. 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.
13. Do not overreach. Keep proper footing and bal-
ance at all times. This enables better control of the
power tool in unexpected situations.
5. 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.
14. 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.
6. Do not expose power tools to rain or wet condi-
tions. Water entering a power tool will increase the
risk of electric shock.
15. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
these devices can reduce dust-related hazards.
7. 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.
Power tool use and care
16. 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.
8. 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.
17. 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.
Personal safety
9. 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.
18. 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.
3
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19. 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.
the manner intended for the particular type of
power tool, taking into account the working con-
ditions and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
20. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and
any other condition that may affect the power
tools operation. If damaged, have the power tool
repaired before use. Many accidents are caused
by poorly maintained power tools.
Service
23. 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.
24. Follow instruction for lubricating and changing
21. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
accessories.
25. Keep handles dry, clean and free from oil and
grease.
22. Use the power tool, accessories and tool bits
etc. in accordance with these instructions and in
ADDITIONAL SAFETY RULES FOR TOOL
ENB011-2
1. Hold the tool firmly.
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 immedi-
ately after operation; they may be extremely hot
and could burn your skin.
9. Avoid cutting electrical wires. It can cause seri-
ous accident by electric shock.
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 work-
piece. Otherwise it can cause damage and trou-
ble on the tool.
SAVE THESE INSTRUCTIONS
4
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FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and unplugged before
adjusting or checking function on the tool.
Switch action
CAUTION:
•
Before plugging in the tool, always check to see that the switch lever
(paddle switch) actuates properly and returns to the “OFF’’ position when
released.
004671
For tools with pivot type lock-off lever
CAUTION:
1
•
The switch lever does not actuate when the lock-off lever is in the LOCK
position. Do not try to actuate the switch lever when the lock-off lever is
in the LOCK position.
•
When not operating the tool, keep the lock-off lever in the LOCK position.
To prevent the switch from being accidentally actuated, a lock-off lever is pro-
vided. To start the tool, turn the lock-off lever to the FREE position and then
squeeze the switch lever. Release the switch lever to stop.
2
1. Lock-off lever in the FREE
position
2. Switch lever (Paddle switch)
004672
1
1. Lock-off lever in the LOCK
position
004673
For tools with slide type lock-off lever
To prevent the switch from being accidentally actuated, a lock-off lever is pro-
vided. To start the tool, slide the lock-off lever in the direction of the arrow and
squeeze the switch lever. Release the switch lever to stop.
1
2
1. Lock-off lever
2. Switch lever
5
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004674
Permissible shearing thickness
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 indi-
cated will result in tool breakdown and/or possible injury. Keep within the thick-
1
2
ness shown in the table.
006425
Tensile Strength
(N/mm2)
Max. cutting thickness
(mm)
Material
1. Gauge for stainless:
Mild steel (A)
Hard steel (B)
Stainless steel
Aluminum plate
400
600
800
200
1.6 (16 ga)
1.2 (18 ga)
0.8 (22 ga)
2.5 (13 ga)
1.2 mm (3/64”)
2. Gauge for mild steel:
1.6 mm (1/16”)
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.
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.
004678
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.
1
2
Remove the blade securing bolts with the hex wrench provided and then rotate
or replace the blades.
3
5
4
1. Lower blade
2. Loosen
3. Upper blade
4. Upper blade securing bolt
5. Hex wrench
6
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004680
Some tools have one or more thin washers between the upper blade and the
blade holder. Be sure to use the same number of thin washers when reassem-
bling.
1
NOTE:
•
No thin washers are used for the lower blade.
2
3
4
1. Thin washers
2. Blade holder
3. Upper blade
4. Upper blade securing bolt
004681
Install the upper blade and tighten the upper blade securing bolt with the hex
wrench. Press up on the upper blade while tightening it.
1
2
3
1. Tighten
2. Upper blade securing bolt
3. Upper blade
004683
After securing the upper blade, be sure that there is no gap left between the
upper blade and the bevelled surface of the blade holder.
1
4
2
3
1. Blade holder
2. Upper blade securing bolt
3. Upper blade
4. No gap allowed
7
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004686
When installing the lower blade onto the yoke, the lower blade should be
pressed against the yoke so as to be contacting the bevelled portions A and B
of the yoke and the tip C of the lower blade positioning screw while you tighten
the lower blade securing bolt. There must be no clearance between A, B and
C during installation.
2
3
1
NOTE:
•
The lower blade positioning screw is factory-assembled. Do not tamper
with it.
1. Lower blade
2. Tighten
3. Yoke
004687
1
3
A
B
C
2
1. Yoke
2. Lower blade positioning screw
3. Lower blade
OPERATION
004699
Holding material
The materials for cutting should be fastened to the workbench by means of
workholders.
1
1. Workholder
004701
Shearing method
Keep the shear moving parallel with the material.
8
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004703
Maximum cutting width
Stay within the specified maximum cutting width (A): Case of length 1,800 mm.
006430
Mild steel (thickness)
Max. cutting width (A)
1.6 mm
100 mm
Under 1.2 mm
No limit
A
1800 mm
(70-7/8”)
Stainless (thickness)
Max. cutting width (A)
1.2 mm
80 mm
Under 1.0 mm
No limit
1
1. Cutting line
Minimum cutting radius
Minimum cutting radius is 30 mm when cutting 1.0 mm mild steel.
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
001145
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.
1
1. Limit mark
004705
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 mainte-
nance or adjustment should be performed by Makita Authorized Service Cent-
ers, always using Makita replacement parts.
1
2
1. Screwdriver
2. Brush holder cap
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
•
9
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Memo
10
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Memo
11
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Makita Corporation Anjo, Aichi, Japan
883248B223
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