Makita GA5020 Instruction Manual page 14

Installing or removing depressed
center wheel or flap disc
Optional accessory
WARNING:
When using a depressed center
wheel or flap disc, the wheel guard must be fitted
on the tool so that the closed side of the guard
always points toward the operator.
WARNING:
Make sure that the mounting part
of the inner flange fits into the inner diameter of
the depressed center wheel / flap disc perfectly.
Mounting the inner flange on the wrong side may
result in the dangerous vibration.
Mount the inner flange onto the spindle.
Make sure to fit the dented part of the inner flange onto
the straight part at the bottom of the spindle.
Fit the depressed center wheel / flap disc on the inner
flange and screw the lock nut onto the spindle.
► Fig.13: 1. Lock nut 2. Depressed center wheel
3. Inner flange 4. Mounting part
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.
► Fig.14: 1. Lock nut wrench 2. Shaft lock
To remove the wheel, follow the installation procedure
in reverse.
Installing or removing flex wheel
Optional accessory
WARNING:
Always use supplied guard when
flex wheel is on the tool. Wheel can shatter during
use and guard helps to reduce chances of personal
injury.
► Fig.15: 1. Lock nut 2. Flex wheel 3. Back up pad
4. Inner flange
Follow instructions for depressed center wheel but also
use back up pad over wheel.
Installing or removing abrasive disc
Optional accessory
► Fig.16: 1. Sanding lock nut 2. Abrasive disc
3. Rubber pad
1.
Mount the rubber pad onto the spindle.
2. Fit the disc on the rubber pad and screw the sand-
ing lock nut onto the spindle.
3. Hold the spindle with the shaft lock, and securely
tighten the sanding lock nut clockwise with the lock nut
wrench.
To remove the disc, follow the installation procedure in
reverse.
NOTE: Use sander accessories specified in this man-
ual. These must be purchased separately.
Super Flange
Optional accessory
Super Flange is a special accessory for model which is
NOT equipped with a brake function.
Models with the letter F are standard-equipped with
Super Flange. Only 1/3 of efforts needed to undo lock
nut, compared with conventional type.
Installing or removing Ezynut
Optional accessory
Only for tools with M14 spindle thread.
CAUTION:
Do not use Ezynut with Super
Flange. Those flanges are so thick that the entire
thread cannot be retained by the spindle.
Mount inner flange, abrasive wheel and Ezynut onto the
spindle so that Makita Logo on Ezynut faces outside.
► Fig.17: 1. Ezynut 2. Abrasive wheel 3. Inner flange
4. Spindle
Press shaft lock firmly and tighten Ezynut by turning the
abrasive wheel clockwise as far as it turns.
► Fig.18: 1. Shaft lock
To loosen the Ezynut, turn the outside ring of Ezynut
counterclockwise.
NOTE: Ezynut can be loosened by hand as long
as the arrow points the notch. Otherwise a lock nut
wrench is required to loosen it. Insert one pin of the
wrench into a hole and turn Ezynut counterclockwise.
► Fig.19: 1. Arrow 2. Notch
► Fig.20
Installing abrasive cut-off / diamond
wheel
Optional accessory
WARNING:
/ diamond wheel, be sure to use only the special
wheel guard designed for use with cut-off wheels.
WARNING:
grinding.
► Fig.21: 1. Lock nut 2. Abrasive cut-off wheel / dia-
mond wheel 3. Inner flange 4. Wheel guard
for abrasive cut-off wheel / diamond wheel
As for the installation, follow the instructions for
depressed center wheel.
The direction for mounting the lock nut and the inner
flange varies by wheel type and thickness.
Refer to the following figures.
When installing the abrasive cut-off wheel:
► Fig.22: 1. Lock nut 2. Abrasive cut-off wheel
(Thinner than 4 mm (5/32")) 3. Abrasive cut-
off wheel (4 mm (5/32") or thicker) 4. Inner
flange
When installing the diamond wheel:
► Fig.23: 1. Lock nut 2. Diamond wheel (Thinner than
4 mm (5/32")) 3. Diamond wheel (4 mm
(5/32") or thicker) 4. Inner flange
14 ENGLISH
When using an abrasive cut-off
NEVER use cut-off wheel for side