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11 

Installing or removing abrasive cut-off wheel / 
diamond wheel (optional accessory) 

1

2

3

4

45

78

78

5

 

 

010963 

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. 

1

2

 

 

006744 

1

2

 

 

006779 

The tool and its air vents have to be kept clean. Regularly 
clean the tool's air vents or whenever the vents start to 
become obstructed. 

 
 

Replacing carbon brushes 

1

2

3

 

 

001146 

When the resin insulating tip inside the carbon brush is 
exposed to contact the commutator, it will 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 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

 

 

006780 

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. Commutator 
2. Insulating tip 
3. Carbon brush 

1. Exhaust vent 
2. Inhalation vent

1. Exhaust vent 
2. Inhalation vent

1. Lock nut 
2. Outer flange 78
3. Abrasive cut-off 

wheel / diamond 
wheel 

4. Inner flange 78
5. Dust collecting 

wheel gurad 

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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