Maktec MT450 User manual

1
ENGLISH (Original instructions)
INSTRUCTION MANUAL
DOUBLE INSULATION
IMPORTANT: Read Before Using.
Recipro Saw
MT450T
MT450
014369

2
ENGLISH (Original instructions)
SPECIFICATIONS
Model MT450T MT450
Length of stroke 28 mm 28 mm
Pipe 130 mm 130 mm
Max. cutting capacities Wood 255 mm 255 mm
Strokes per minute (min-1) 0 - 2,800 0 - 2,800
Overall length 457 mm 457 mm
Net weight 3.2 kg 3.1 kg
Safety class /II
• 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
END201-7
Symbols
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 the European
Directive, 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.
ENE021-1
Intended use
The tool is intended for sawing wood, plastic, metal and
building materials with a strong impact. It is suitable for
straight and curved cutting.
ENF002-2
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 single-phase AC supply. They
are double-insulated and can, therefore, also be used
from sockets without earth wire.
ENG905-1
Noise
The typical A-weighted noise level determined
according to EN60745:
Model MT450T
Sound pressure level (LpA) : 87 dB (A)
Sound power level (LWA) : 98 dB (A)
Uncertainty (K) : 3 dB (A)
Model MT450
Sound pressure level (LpA) : 88 dB (A)
Sound power level (LWA) : 99 dB (A)
Uncertainty (K) : 3 dB (A)
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum)
determined according to EN60745:
Work mode : cutting boards
Vibration emission (ah,B) : 19.5 m/s2
Uncertainty (K) : 1.5 m/s2
Work mode : cutting wooden beams
Vibration emission (ah,WB) : 22.0 m/s2
Uncertainty (K) : 2.0 m/s2
ENG901-1
• 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.

3
• 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).
ENH101-17
For European countries only
EC Declaration of Conformity
Makita declares that the following Machine(s):
Designation of Machine:
Recipro Saw
Model No./ Type: MT450T, MT450
Conforms to the following European Directives:
2006/42/EC
They are manufactured in accordance with the following
Standard or standardized documents:
EN60745
The Technical file in accordance with 2006/42/EC is
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
25.4.2013
000331
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
GEA005-3
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
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
2. 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.
3. Keep children and bystanders away while
operating 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
conditions. 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.
9. If operating a power tool in a damp location is
unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD
reduces the risk of electric shock.
10. Use of power supply via a RCD with a rated
residual current of 30mA or less is always
recommended.
Personal safety
11.
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.
12. 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.
13. 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.
14. 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.

4
15. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
16.
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.
17. 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 dust-related hazards.
Power tool use and care
18. 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.
19. 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.
20. 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.
21. 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.
22.
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.
23. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
24. 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
25. 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.
26. Follow instruction for lubricating and
changing accessories.
27. Keep handles dry, clean and free from oil and
grease.
GEB008-6
RECIPRO SAW SAFETY
WARNINGS
1. Hold power tool by insulated gripping
surfaces, when performing an operation
where the cutting accessory may contact
hidden wiring or its own cord. Cutting
accessory contacting a "live" wire may make
exposed metal parts of the power tool "live" and
could give the operator an electric shock.
2.
Use clamps or another practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against your body
leaves it unstable and may lead to loss of control.
3. Always use safety glasses or goggles. Ordinary
eye or sun glasses are NOT safety glasses.
4. Avoid cutting nails. Inspect workpiece for any
nails and remove them before operation.
5. Do not cut oversize workpiece.
6. Check for the proper clearance beyond the
workpiece before cutting so that the blade will
not strike the floor, workbench, etc.
7. Hold the tool firmly.
8. Make sure the blade is not contacting the
workpiece before the switch is turned on.
9. Keep hands away from moving parts.
10. Do not leave the tool running. Operate the tool
only when hand-held.
11. Always switch off and wait for the blade to
come to a complete stop before removing the
blade from the workpiece.
12. Do not touch the blade or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
13.
Do not operate the tool at no-load unnecessarily.
14. Always use the correct dust mask/respirator
for the material and application you are
working with.
15. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
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.

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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.
Adjusting the shoe
A
12
014348
B
12
014349
When the blade loses its cutting efficiency in one place
along its cutting edge, reposition the shoe to utilize a
sharp, unused portion of its cutting edge. This will help
to lengthen the life of the blade. To reposition the shoe,
push the shoe button in the "A" direction with a click and
reposition as shown in the figure which allows you to
make five-way adjustment. To secure the shoe, push
the shoe button in the "B" direction with a click.
Switch action
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.
12
014350
To start the tool, simply pull the switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger, push in
the lock button and then release the switch trigger.
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.
Installing or removing the saw blade for
Model MT450T
CAUTION:
• Always clean out all chips or foreign matter
adhering to the blade, blade clamp and/or slider.
Failure to do so may cause insufficient tightening
of the blade, resulting in a serious injury.
1
23
014351
To install the saw blade, always make sure that the
blade clamp lever is in released position on the
insulation cover before inserting the saw blade. If the
blade clamp lever is in fixed position, rotate the blade
clamp lever in the direction of the arrow so that it can be
locked at the released position .
CAUTION:
• If you do not insert the saw blade deep enough,
the saw blade may be ejected unexpectedly during
operation. This can be extremely dangerous.
1. Blade clamp
sleeve
2. Fixed position
3. Released position
1. Switch trigger
2. Lock button
1. Shoe button
2. Shoe
1. Shoe
2. Shoe button

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• Keep hands and fingers away from the lever
during the switching operation. Failure to do so
may cause personal injuries.
1
014352
Insert the saw blade into the blade clamp as far as it will
go. The blade clamp lever rotates and the saw blade is
fixed. Make sure that the saw blade cannot be extracted
even though you try to pull it out.
1
014353
To remove the saw blade, rotate the blade clamp lever
in the direction of the arrow fully. The saw blade is
removed and the blade clamp lever is fixed at the
released position .
NOTE:
• If you remove the saw blade without rotating the
blade clamp lever fully, the lever may not be
locked in the released position . In this case,
rotate the blade clamp lever fully again, then make
sure that the blade clamp lever locked at the
released position .
• If the lever is positioned inside the tool, switch on
the tool just a second to let the blade clamp out.
Switch off and unplug the tool from the mains
before working on the blade clamp lever.
Installing or removing the saw blade for
Model MT450
CAUTION:
• Always clean out all chips or foreign matter
adhering to the blade, blade clamp and/or slider.
Failure to do so may cause insufficient tightening
of the blade, resulting in a serious injury.
1
2
014347
To install the blade, loosen the screw on the blade
clamp with the hex wrench. Insert the blade between
the blade clamp and the slider so that the pin on the
slider fits into the hole in the blade shank. If the pin
cannot easily fit into the hole, remove the hex wrench
from the screw and then try again.
CAUTION:
• If you tighten the screw without the pin on the
slider fitting properly in the hole in the blade shank,
the pin or the blade shank will be damaged. This
may cause the blade to be extracted unexpectedly
during operation.
1
2
3
4
5
014346
After the pin fits properly into the hole, tighten the screw
clockwise securely. Make sure that the blade cannot be
extracted even though you try to pull it out.
To remove the blade, follow the installation procedure in
reverse.
Hex wrench storage
1
2
014358
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
1. Hex wrench
2. Insulation cover
1. Screw
2. Pin
3. Blade clamp
4. Hole
5. Blade
1. Hex wrench
2. Screw
1. Blade clamp lever
1. Blade

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OPERATION
CAUTION:
• Always hold the tool firmly with one hand on
insulation cover and the other on the switch handle.
• Always press the shoe firmly against the
workpiece during operation. If the shoe is removed
or held away from the workpiece during operation,
strong vibration and/or twisting will be produced,
causing the blade to snap dangerously.
• Always wear gloves to protect your hands from hot
flying chips when cutting metal.
• Be sure to always wear suitable eye protection
which conforms with current national standards.
• Always use a suitable coolant (cutting oil) when
cutting metal. Failure to do so will cause
premature blade wear.
014354
Press the shoe firmly against the workpiece. Do not
allow the tool to bounce. Bring the blade into light
contact with the workpiece. First, make a pilot groove
using a slower speed. Then use a faster speed to
continue cutting.
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.
Replacing carbon brushes
1
001145
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.
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.
1
2
014355
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.
1. Brush holder cap
2. Screwdriver
1. Limit mark

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www.makita.com
Makita Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita Corporation Anjo, Aichi, Japan
885258A226