Makita GA7020Y Instruction Manual Download Page 8

Installing or removing depressed center 
grinding wheel/Multi-disc (accessory) 

1

2

3

4

 

 

006746 

Mount the inner flange onto the spindle. Fit the 
wheel/disc on the inner flange and screw the lock nut 
onto the spindle. 

 

NOTE: 

When using a more than 7 mm thick depressed center 
grinding wheel, overturn the lock nut and screw it onto 
the spindle. 

Super flange 

Models GA7020F,GA7020SF,GA9020F and 9020SF are 
standard-equipped with a super flange. Only 1/3 of 
efforts needed to undo lock nut, compared with 
conventional type. 

For Australia and New Zealand 

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2
3

 

 

010851 

Mount the inner flange onto the spindle. Fit the 
wheel/disc on the inner flange and screw the lock nut 
with its protrusion facing downward (facing toward the 
wheel). 
To tighten the lock nut, press the shaft lock firmly so that 
the spindle cannot revolve, then use the lock nut wrench 
and securely tighten clockwise. 

1

2

 

 

006738 

 

To remove the wheel, follow the installation procedure in 
reverse. 

Installing or removing abrasive disc (optional 
accessory) 

 

NOTE: 

• 

Use sander accessories specified in this manual. 
These must be purchased separately. 

1
2

3

 

 

010948 

Mount the rubber pad onto the spindle. Fit the disc on the 
rubber pad and screw the lock nut onto the spindle. To 
tighten the lock nut, press the shaft lock firmly so that the 
spindle cannot revolve, then use the lock nut wrench and 
securely tighten clockwise. 
To remove the disc, follow the installation procedure in 
reverse. 

OPERATION 

 

WARNING: 

• 

It should never be necessary to force the tool. The 
weight of the tool applies adequate pressure. 
Forcing and excessive pressure could cause 
dangerous wheel breakage. 

• 

ALWAYS replace wheel if tool is dropped while 
grinding. 

• 

NEVER bang or hit grinding disc or wheel onto 
work. 

• 

Avoid bouncing 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 on a grinder 
frequently kick and cause loss of control leading to 
personal injury. 

CAUTION: 

• 

Never switch on the tool when it is in contact with 
the workpiece, it may cause an injury to operator. 

• 

Always wear safety goggles or a face shield during 
operation. 

• 

After operation, always switch off the tool and wait 
until the wheel has come to a complete stop before 
putting the tool down. 

 

1. Lock nut 
2. Abrasive disc 
3. Rubber pad 

1. Lock nut wrench
2. Shaft lock 

1. Lock nut 
2. Depressed 

center 
wheel/Multi disc

3. Inner flange 102

1. Lock nut 
2. Depressed 

center wheel 

3. Super flange 
4. Inner flange 

Summary of Contents for GA7020Y

Page 1: ...1 ENGLISH Original instructions INSTRUCTION MANUAL DOUBLE INSULATION IMPORTANT Read Before Using Angle Grinder GA7020 GA7020S GA7020Y GA9020 GA9020S 010853 ...

Page 2: ...e used from sockets without earth wire 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...

Page 3: ... 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 the...

Page 4: ...trol 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 ...

Page 5: ...the cut while the wheel is in motion otherwise kickback may occur Investigate and take corrective action to eliminate the cause of wheel binding d Do not restart the cutting operation in the workpiece Let the wheel reach full speed and carefully reenter the cut The wheel may bind walk up or kickback if the power tool is restarted in the workpiece e Support panels or any oversized workpiece to mini...

Page 6: ...cs must not be subjected to any lateral pressure 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 FUNCTIONAL DESCRIPTION CAUTION Always be sure that the tool is switch...

Page 7: ...enter wheel multi disc wire wheel brush abrasive cut off wheel diamond wheel WARNING When using a depressed center grinding wheel Multi disc flex wheel or wire wheel brush the wheel guard must be fitted on the tool so that the closed side of the guard always points toward the operator When using an abrasive cut off diamond wheel be sure to use only the special wheel guard designed for use with cut...

Page 8: ...n the rubber pad and screw the lock nut onto the spindle To tighten the lock nut press the shaft lock firmly so that the spindle cannot revolve then use the lock nut wrench and securely tighten clockwise To remove the disc follow the installation procedure in reverse OPERATION WARNING It should never be necessary to force the tool The weight of the tool applies adequate pressure Forcing and excess...

Page 9: ...with broken wires ALWAYS use guard with wire wheel brushes assuring diameter of wheel fits inside guard Wheel can shatter during use and guard helps to reduce chances of personal injury 1 010949 Unplug tool and place it upside down allowing easy access to spindle Remove any accessories on spindle Thread wire wheel brush onto spindle and tighten with the wrenches When using wire wheel brush avoid a...

Page 10: ...an 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 006745 To maintain product SAFETY and RELIABILITY repairs any other maintenance or adjustment should be performed by Makita Authorized ...

Page 11: ...ner flange Super flange Inner flange 102 Australia and New Zealand only Depressed center grinding wheel Multi disc Lock nut Ezynut 1 Abrasive cut off wheel Diamond wheel Outer flange 78 Australia and New Zealand only 2 Rubber pad Abrasive disc Wire wheel brush Wire cup brush Lock nut wrench Sanding lock nut Inner flange Super flange Inner flange 78 Australia and New Zealand only Wheel guard for Ab...

Page 12: ...12 Makita Corporation 884635C3 ...

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