Makita JN1601 User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Nibbler
MODEL JN1601
004772
DOUBLE
INSULATION

2
SPECIFICATIONS
• Due to our continuing programme of research and development, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
SYMBOLS END201-2
The following 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 European Directive
2002/96/EC 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 collected separately and
returned to an environmentally
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 in accordance with European
Standard and can, therefore, also be used from sockets
without earth wire.
For European countries only
Noise and Vibration
The typical A-weighted sound pressure level is 83 dB (A).
Uncertainty is 3 dB(A).
The noise level under working may exceed 85 dB (A).
– Wear ear protection. –
The typical weighted root mean square acceleration
value is not more than 2.5 m/s2.
These values have been obtained according to
EN60745.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product
is in compliance with the following standards of stand-
ardized documents, EN60745, EN55014, EN61000 in
accordance with Council Directives, 89/336/EEC, 98/37/
EC.
Yasuhiko Kanzaki CE 2005
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Responsible manufacturer:
Makita Corporation Anjo Aichi Japan
Model JN1601
Max. cutting capacities
Steel up to 400 N/mm21.6 mm / 16 ga
Steel up to 600 N/mm21.2 mm / 18 ga
Steel up to 800 N/mm20.8 mm / 22 ga
Aluminum up to 200 N/mm22.5 mm / 13 ga
Min. cutting radius
Outside edge 50 mm
Inside edge 45 mm
Strokes per minute (min-1)2,200
Overall length 261 mm
Net weight 1.6 kg
Safety class /II

3
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
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.
3. Keep children and bystanders away while oper-
ating a power tool. Distractions can cause you to
lose control.
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.
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.
6. Do not expose power tools to rain or wet condi-
tions. Water entering a power tool will increase the
risk of electric shock.
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.
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.
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.
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.
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.
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.
13. Do not overreach. Keep proper footing and bal-
ance at all times. This enables better control of the
power tool in unexpected situations.
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.
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.
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.
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.
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.

4
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.
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.
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.
22. Use the power tool, accessories and tool bits
etc. in accordance with these instructions and in
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.
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
accessories.
25. Keep handles dry, clean and free from oil and
grease.
ADDITIONAL SAFETY RULES FOR TOOL ENB073-1
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 work-
piece. Otherwise it can cause damage and trou-
ble 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 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 seri-
ous accident by electric shock.
SAVE THESE INSTRUCTIONS

5
FUNCTIONAL
DESCRIPTION CAUTION:
• Always be sure that the tool is switched off and unplugged before
adjusting or checking function on the tool.
Changing the die position
The die position can be changed 360°. To change it, proceed as follows.
1. Loosen the lock nut with the wrench provided.
2. Pull the die holder slightly and turn it to the desired position for operation.
3. Tighten the lock nut to secure the die holder in the desired position.
There are four positive stops at 90° each: 0°, 90° left and right and 180°. To
position the die to any of these positive stops:
1. Loosen the lock nut with the wrench provided.
2. Pull the die holder slightly and depress lightly while turning it to the
desired position. The die holder will lock into one of the positive stop
positions as desired.
3. Turn the die holder slightly to make sure that it is positively locked into
position.
4. Tighten the lock nut to secure the die holder.
Permissible cutting thickness
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.
Cutting line
The notch in the die holder indicates your cutting line. Its width is equal to the
cutting width. Align the notch to the cutting line on the workpiece when cutting.
Switch action
CAUTION:
• Before plugging in the tool, always check to see that the switch actuates
properly and returns to the “OFF” position when the rear of the switch
lever is depressed.
To switch on, depress the rear of the switch lever and push it forward. Then
depress the front of the switch lever to lock it.
To switch off, depress the rear of the switch lever.
1. Die
2. Die holder
3. Lock nut
4. Wrench
1
2
3
4
004774
1. Gauge for cutting stainless:
1.2 mm (3/64”)
2. Gauge for cutting mild steel:
1.6 mm (1/16”)
3. Notch
1
2
3
004775
1. Switch lever
1
004777

6
ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and unplugged before
carrying out any work on the tool.
Removing or installing the punch and die
Always replace the punch and die as a set. To remove the punch and die,
loosen the lock nut with the wrench. Remove the die holder from the tool. Use
the hex wrench to loosen the bolts which secure the die. Remove the die from
the die holder.
Use the hex wrench to loosen the screw which secures the punch. Pull the
punch out of the punch holder.
To install the punch and die, insert the punch into the punch holder so that the
notch in the punch faces toward the screw. Tighten the screw to secure the
punch. Install the die on the die holder. Tighten the bolts to secure the die.
1. Die holder
2. Die
3. Bolts
4. Hex wrench
1
2
34
004779
1. Punch
2. Punch holder
3. Screw
4. Hex wrench
1
2
3
4
004780
1. Punch
2. Notch
1
2
004781

7
Then install the die holder on the tool so that the punch is inserted through the
hole in the die holder. Tighten the lock nut to secure the die holder. After
replacing the punch and die, lubricate them with machine oil and run the tool
for a while.
OPERATION 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
Hold the tool so that the cutting head is at a right angle (90°) to the workpiece
being cut. Move the tool gently in the cutting direction.
Cutouts
Cutouts can be done by first opening a round hole over 21 mm in diameter
which the cutting head can be inserted into.
1. Bolts
2. Die
3. Punch
4. Die holder
1
2
3
4
004782
004786
004788

8
Cutting the corrugated or trapezoidal sheet metals
Set the die position so that the die faces the cutting direction either when cut-
ting at an angle or perpendicular go grooves in corrugated or trapezoidal sheet
metals.
Always hold the tool body parallel to the grooves with the cutting head at a
right angle (90°) to the cutting surface as shown in the figure.
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
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. From the top view
2. Cutting at an angle to grooves
3. Cutting perpendicular to grooves
4. From the side view
5. Corrugated or trapezoidal sheet
metal
1
2
3
45
004790
1. From the side view
2. Cutting head should be at a right
angle (90°) to cutting surface.
12
004791
1. Limit mark
1
001145

9
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.
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.
1. Brush holder cap
2. Screwdriver
1
2
004795
•Die
•Punch
•Hex wrench
•Wrench 32

Memo
10

Memo
11

Makita Corporation Anjo, Aichi, Japan
883894B222