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Installing or removing flex wheel
Optional accessory
For depressed center wheel, flap disc,
flex wheel, wire wheel brush / abrasive
cut-off wheel, diamond wheel
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.
1.
While pushing the lock lever, mount the wheel
guard with the protrusions on the wheel guard aligned
with the notches on the bearing box.
► Fig.7: 1. Lock lever 2. Notch 3. Protrusion
► Fig.13: 1. Lock nut 2. Flex wheel 3. Back up pad
4. Inner flange
2.
While pushing the lock lever toward A, hold down
the portions B of the wheel guard as shown in the
figure.
► Fig.8: 1. Wheel guard 2. Hole
Follow instructions for depressed center wheel but also
use back up pad over wheel.
Installing or removing abrasive disc
NOTE: Push down the wheel guard straight.
Otherwise, you cannot secure the wheel guard.
Optional accessory
► Fig.14: 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.
While pushing the lock lever toward A, rotate the
wheel guard toward C, and then, change the angle of
the wheel guard according to the work so that the oper-
ator can be protected. Align the lock lever with one of
the holes in the wheel guard, and then release the lock
lever to lock the wheel guard.
► Fig.9: 1. Wheel guard 2. Hole
3.
Hold the spindle with the shaft lock, and securely tighten
the sanding lock nut clockwise with the lock nut wrench.
To remove wheel guard, follow the installation proce-
dure in reverse.
To remove the disc, follow the installation procedure in
reverse.
Clip-on cutting wheel guard attachment
Optional accessory
NOTE: Use sander accessories specified in this man-
ual. These must be purchased separately.
Super flange
NOTE: For cutting-off operations, a clip-on cutting
wheel guard attachment can be used with the wheel
guard (for grinding wheel).
Optional accessory
Not available in some countries.
Only for model GA4590 / GA4592 / GA5090 / GA5092
► Fig.10
Installing or removing depressed
center wheel or flap disc
Super flange is a special accessory for model which is
NOT equipped with a brake function.
Only 1/3 of efforts needed to undo lock nut, compared
with conventional type.
Optional accessory
Installing or removing Ezynut
Optional accessory
Only for tools with M14 spindle thread.
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.
CAUTION: Do not use Ezynut with Super
Flange. Those flanges are so thick that the entire
thread cannot be retained by the spindle.
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 inner flange, abrasive wheel and Ezynut onto the
spindle so that Makita Logo on Ezynut faces outside.
► Fig.15: 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.16: 1. Shaft lock
To loosen the Ezynut, turn the outside ring of Ezynut
counterclockwise.
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.11: 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.12: 1. Lock nut wrench 2. Shaft lock
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.17: 1. Arrow 2. Notch
To remove the wheel, follow the installation procedure
in reverse.
► Fig.18
16
ENGLISH