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the plane of the rotating accessory and run the 
power tool at maximum no-load speed for one 
minute.

 Damaged accessories will normally break 

apart during this test time. 

8. 

Wear personal protective equipment. 
Depending on application, use face shield, 
safety goggles or safety glasses. As 
appropriate, wear dust mask, hearing 
protectors, gloves and workshop 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. 

9. 

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 accessory 
may fly away and cause injury beyond immediate 
area of operation. 

10. 

Hold power tool by insulated gripping 
surfaces only, 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 
shock the operator. 

11. 

Position the cord clear of the spinning 
accessory.

 If you lose control, the cord may be cut 

or snagged and your hand or arm may be pulled 
into the spinning accessory.   

12. 

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

 The 

spinning accessory may grab the surface and pull 
the power tool out of your control. 

13. 

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

 Accidental contact with the spinning 

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

14. 

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. 

15. 

Do not operate the power tool near flammable 
materials.

 Sparks could ignite these materials. 

16. 

Do not use accessories that require liquid 
coolants.

 Using water or other liquid coolants may 

result in electrocution or shock. 

Kickback and Related Warnings

 

Kickback is a sudden reaction to a pinched or snagged 
rotating wheel, backing pad, brush or any other 
accessory. Pinching or snagging causes rapid stalling of 
the rotating accessory which in turn causes the 

uncontrolled power tool to be forced in the direction 
opposite of the accessory’s rotation at the point of the 
binding. 
For example, if an abrasive 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. Abrasive 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. 

a) 

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. 
b) 

Never place your hand near the rotating 

accessory.

 Accessory may kickback over your 

hand. 
c) 

Do not position your body in the area where 

power tool will move if kickback occurs.

 

Kickback will propel the tool in direction opposite to 
the wheel’s movement at the point of snagging. 
d) 

Use special care when working corners, 

sharp edges etc. Avoid bouncing and snagging 
the accessory.

 Corners, sharp edges or bouncing 

have a tendency to snag the rotating accessory and 
cause loss of control or kickback. 
e) 

Do not attach a saw chain woodcarving 

blade or toothed saw blade.

 Such blades create 

frequent kickback and loss of control 

Safety Warnings Specific for Grinding and Abrasive 
Cutting-Off Operations: 

a) 

Use only wheel types that are recommended 

for your power tool and the specific guard 
designed for the selected wheel.

 Wheels for 

which the power tool was not designed cannot be 
adequately guarded and are unsafe. 
b) 

The guard must be securely attached to the 

power tool and positioned for maximum safety, 
so the least amount of wheel is exposed 
towards the operator.

 The guard helps to protect 

operator from broken wheel fragments and 
accidental contact with wheel. 
c) 

Wheels must be used only for recommended 

applications. For example: do not grind with 
the side of cut-off wheel.

 Abrasive cut-off wheels 

are intended for peripheral grinding, side forces 
applied to these wheels may cause them to shatter. 
d) 

Always use undamaged wheel flanges that 

Summary of Contents for MT901

Page 1: ...1 ENGLISH Original instructions INSTRUCTION MANUAL DOUBLE INSULATION IMPORTANT Read Before Using Angle Grinder MT900 MT901 006770...

Page 2: ...accordance with European Standard and can therefore also be used from sockets without earth wire ENF100 1 For public low voltage distribution systems of between 220 V and 250 V Switching operations o...

Page 3: ...ng 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 grounde...

Page 4: ...ordance 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 s...

Page 5: ...e rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory s rotation at the point of the binding For example if an abrasive wheel is...

Page 6: ...ions when selecting sanding paper Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging tearing of the disc or kickback Safety Warnings Specific for...

Page 7: ...he 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 For to...

Page 8: ...ly To remove wheel guard follow the installation procedure in reverse For tool with clamp lever type wheel guard 1 2 3 4 010644 1 2 010645 Loosen the lever on the wheel guard Mount the wheel guard wit...

Page 9: ...ng and snagging the wheel especially when working corners sharp edges etc This can cause loss of control and kickback NEVER use tool with wood cutting blades and other sawblades Such blades when used...

Page 10: ...d wheel be sure to use only the special wheel guard designed for use with cut off wheels NEVER use cut off wheel for side grinding Do not jam the wheel or apply excessive pressure Do not attempt to ma...

Page 11: ...ill automatically shut off the motor When this occurs both carbon brushes should be replaced Keep the carbon brushes clean and free to slip in the holders Both carbon brushes should be replaced at the...

Page 12: ...12 Makita Corporation Anjo Aichi Japan www makita com 884636B227...

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