Makita GA4600 Instruction Manual page 13

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.
WARNING:
Be sure to tighten the lock nut
with the lock nut wrench while pressing the shaft
lock.
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.10: 1. Lock nut 2. Depressed center wheel
3. Inner flange 4. Mounting part
When using the depressed center wheel or flap disc 4
mm (5/32") or thicker, mount the lock nut with its pro-
trusion facing downward to fit inside the center of the
wheel as shown in the figure.
When using the depressed center wheel or flap disc
thinner than 4 mm (5/32"), mount the lock nut with its
protrusion facing upward into the spindle.
If the wheel rotate after tightening the lock nut, make
sure the direction of the lock nut protrusion is correct.
► Fig.11: 1. Lock nut 2. Depressed center wheel / flap
disc (4 mm (5/32") or thicker) 3. Depressed
center wheel / flap disc (Thinner than 4 mm
(5/32")) 4. Inner flange
WARNING:
If the lock nut is mounted with its
protrusion downward into the depressed center wheel
or flap disc thinner than 4 mm (5/32"), the wheel may
rotate because the lock nut cannot hold the wheel
due to the height of protrusion.
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
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.13: 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
NOTE: Use sander accessories specified in this man-
ual. These must be purchased separately.
For 100 mm (4") model
► Fig.14: 1. Sanding lock nut 2. Abrasive disc
3. Rubber pad 4. Inner flange
1.
Mount the inner flange onto the spindle.
2.
Mount the rubber pad onto the spindle.
3. Fit the disc on the rubber pad and screw the sand-
ing lock nut onto the spindle.
4. 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.
For model other than 100 mm (4")
► Fig.15: 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.
Super Flange
Optional accessory
Only for tools with M14 spindle thread.
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.
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.16: 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.17: 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.18: 1. Arrow 2. Notch
► Fig.19
13 ENGLISH