Makita GA7021, Instruction Manual

Page: 5 / 84

5
ENGLISH (Original instructions)
Explanation of general view
SPECIFICATIONS
• 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
Intended use
ENE048-1
The tool is intended for grinding, sanding and cutting of
metal and stone materials without the use of water.
Power supply
ENF002-2
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.
For public low-voltage distribution systems of
between 220 V and 250 V.
ENF100-1
Switching operations of electric apparatus cause voltage
fluctuations. The operation of this device under
unfavorable mains conditions can have adverse effects to
the operation of other equipment. With a mains
impedance equal or less than 0.27 Ohms it can be
presumed that there will be no negative effects. The
mains socket used for this device must be protected with
a fuse or protective circuit breaker having slow tripping
characteristics.
General Power Tool Safety
Warnings
GEA010-1
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.
GRINDER SAFETY WARNINGS
GEB033-7
Safety Warnings Common for Grinding, Sanding,
Wire Brushing, or Abrasive Cutting-Off Operations:
1. This power tool is intended to function as a
grinder, sander, wire brush or cut-off tool. Read all
safety warnings, instructions, illustrations and
specifications provided with this power tool.
Failure to follow all instructions listed below may result
in electric shock, fire and/or serious injury.
2. Operations such as polishing are not
recommended to be performed with this power
tool.
Operations for which the power tool was not
designed may create a hazard and cause personal
injury.
3. Do not use accessories which are not specifically
designed and recommended by the tool
manufacturer.
Just because the accessory can be
attached to your power tool, it does not assure safe
operation.
4. The rated speed of the accessory must be at least
equal to the maximum speed marked on the power
tool.
Accessories running faster than their rated
speed can break and fly apart.
5. The outside diameter and the thickness of your
accessory must be within the capacity rating of
1. Shaft lock
2. Switch trigger
3. Lock lever
4. Wheel guard
5. Screw
6. Bearing box
7. Nut
8. Lever
9. Lock nut
10. Depressed center wheel
11. Super flange
12. Inner flange
13. Lock nut wrench
14. Abrasive disc
15. Rubber pad
16. Wire cup brush
17. Wire wheel brush
18. Abrasive cut-off wheel/diamond
wheel
19. Wheel guard for abrasive cut-off
wheel/diamond wheel
20. Outer flange 78
21. Inner flange 78
22. Exhaust vent
23. Inhalation vent
24. Commutator
25. Insulating tip
26. Carbon brush
27. Brush holder cap
28. Screwdriver
Model GA7020 GA7020S GA7021 GA9020 GA9020S
Depressed center wheel diameter 180 mm 230 mm
Max. wheel thickness 6.5 mm
Spindle thread M14 or 5/8” (country specific)
Rated speed (n)/No load speed (n
0
) 8,500 min
-1
6,600 min
-1
Overall length 473 mm
Net weight 5.5 kg 5.7 kg 5.5 kg 5.8 kg 5.9 kg
Safety class /II