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5. 

Always use undamaged wheel flanges that are 
of correct diameter for your selected wheel.

 

Proper wheel flanges support the wheel thus 
reducing the possibility of wheel breakage. 

6. 

The outside diameter and the thickness of 
your wheel must be within the capacity rating 
of your power tool.

 Incorrectly sized wheels 

cannot be adequately guarded or controlled. 

7. 

The arbour size of wheels and flanges must 
properly fit the spindle of the power tool.

 

Wheels and flanges with arbour holes that do not 
match the mounting hardware of the power tool 
will run out of balance, vibrate excessively and 
may cause loss of control. 

8. 

Do not use damaged wheels. Before each use, 
inspect the wheels for chips and cracks. If 
power tool or wheel is dropped, inspect for 
damage or install an undamaged wheel. After 
inspecting and installing the wheel, position 
yourself and bystanders away from the plane 
of the rotating wheel and run the power tool at 
maximum no load speed for one minute.

 

Damaged wheels will normally break apart during 
this test time. 

9. 

Wear personal protective equipment. 
Depending on application, use face shield, 
safety goggles or safety glasses. As 
appropriate, wear dust mask, hearing 
protectors, gloves and shop apron capable of 
stopping small abrasive or workpiece 
fragments.

 The eye protection must be capable of 

stopping flying debris generated by various 
operations. The dust mask or respirator must be 
capable of filtrating particles generated by your 
operation. Prolonged exposure to high intensity 
noise may cause hearing loss. 

10. 

Keep bystanders a safe distance away from 
work area. Anyone entering the work area 
must wear personal protective equipment.

 

Fragments of workpiece or of a broken wheel may 
fly away and cause injury beyond immediate area 
of operation. 

11. 

Hold power tool by insulated gripping 
surfaces only, when performing an operation 
where the wheel may contact hidden wiring or 
its own cord.

 Wheel contacting a "live" wire may 

make exposed metal parts of the power tool "live" 
and shock the operator. 

12. 

Position the cord clear of the spinning wheel.

 

If you lose control, the cord may be cut or snagged 
and your hand or arm may be pulled into the 
spinning wheel. 

13. 

Never lay the power tool down until the wheel 
has come to a complete stop.

 The spinning 

wheel may grab the surface and pull the power 

tool out of your control. 

14. 

Do not run the power tool while carrying it at 
your side.

 Accidental contact with the spinning 

wheel could snag your clothing, pulling the wheel 
into your body. 

15. 

Regularly clean the power tool's air vents.

 The 

motor's fan will draw the dust inside the housing 
and excessive accumulation of powdered metal 
may cause electrical hazards. 

16. 

Do not operate the power tool near flammable 
materials.

 Sparks could ignite these materials. 

17. 

Never attempt to cut with the tool held upside 
down in a vise. This can lead to serious 
accidents, because it is extremely dangerous. 

18. 

Some material contains chemicals which may 
be toxic. Take caution to prevent dust 
inhalation and skin contact. Follow material 
supplier safety data. 

Kickback and related warnings 

Kickback is a sudden reaction to a pinched or snagged 
rotating wheel. Pinching or snagging causes rapid 
stalling of the rotating wheel which in turn causes the 
uncontrolled power tool to be forced in the direction 
opposite of the wheel's rotation at the point of the 
binding. 
For example, if a wheel is snagged or pinched by the 
workpiece, the edge of the wheel that is entering into the 
pinch point can dig into the surface of the material 
causing the wheel to climb out or kick out. The wheel 
may either jump toward or away from the operator, 
depending on direction of the wheel's movement at the 
point of pinching. The wheels may also break under 
these conditions. 
Kickback is the result of power tool misuse and/or 
incorrect operating procedures or conditions and can be 
avoided by taking proper precautions as given below. 

1. 

Maintain a firm grip on the power tool and 
position your body and arm to allow you to 
resist kickback forces. Always use auxiliary 
handle, if provided, for maximum control over 
kickback or torque reaction during start-up.

 

The operator can control torque reactions or 
kickback forces, if proper precautions are taken. 

2. 

Never place your hand near the rotating wheel.

 

Wheel may kickback over your hand. 

3. 

Do not position your body in line with and 
behind the rotating wheel.

 Kickback will propel 

the tool in direction opposite to the wheel's 
movement at the point of snagging. 

4. 

Use special care when working corners, sharp 
edges etc. Avoid bouncing and snagging the 
wheel.

 Corners, sharp edges or bouncing have a 

tendency to snag the rotating wheel and cause 
loss of control or kickback. 

Summary of Contents for MCC400

Page 1: ...1 ENGLISH Original instructions INSTRUCTION MANUAL DOUBLE INSULATION IMPORTANT Read Before Using Cutter MCC400 001671 ...

Page 2: ...ety 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 invit...

Page 3: ...red 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 t...

Page 4: ...ete stop The spinning wheel may grab the surface and pull the power tool out of your control 14 Do not run the power tool while carrying it at your side Accidental contact with the spinning wheel could snag your clothing pulling the wheel into your body 15 Regularly clean the power tool s air vents The motor s fan will draw the dust inside the housing and excessive accumulation of powdered metal m...

Page 5: ...ece on both sides of the wheel 10 Use extra caution when making a pocket cut into existing walls or other blind areas The protruding wheel may cut gas or water pipes electrical wiring or objects that can cause kickback 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 fa...

Page 6: ...For tool with lock button 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 For tool without lock button To start the tool simply pull the switch trigger Release the switch trigger to stop OPERATI...

Page 7: ...ction of the tool Replacement of 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 o...

Page 8: ...8 Makita Corporation Anjo Aichi Japan www makita com 884749A8 ...

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