Makita DGA504RTJ Instruction Manual Download Page 11

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015200

In this situation, the tool does not start even if turning the
tool off and on. To release the protection lock, remove the
battery, set it to the battery charger and wait until the
charging finishes.

Shaft lock

CAUTION:

• Never actuate the shaft lock when the spindle is

moving. The tool may be damaged.

Press the shaft lock to prevent spindle rotation when
installing or removing accessories.

(Fig. 6)

ASSEMBLY

CAUTION:

• Always be sure that the tool is switched off and the

battery cartridge is removed before carrying out any
work on the tool.

Installing side grip (handle)

CAUTION:

• Always be sure that the side grip is installed securely

before operation.

Screw the side grip securely on the position of the tool as
shown in the figure.

(Fig. 7)

Installing or removing wheel guard (For
depressed center wheel, multi disc/
abrasive cut-off wheel, diamond wheel)

WARNING:

• When using a depressed center grinding wheel/Multi-

disc, flex wheel, wire wheel brush, cut-off wheel or
diamond wheel, 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-off wheels. (In some European countries,
when using a diamond wheel, the ordinary guard can
be used. Follow the regulations in your country.)

For tool with clamp lever type wheel guard

Loosen the lever on the wheel guard after loosening the
screw. Mount the wheel guard with the protrusion on the
wheel guard band aligned with the notch on the bearing
box. Then rotate the wheel guard to such an angle that it
can protect the operator according to work.

(Fig. 8)

Tighten the lever to fasten the wheel guard. If the lever is
too tight or too loose to fasten the wheel guard, loosen or
tighten the screw to adjust the tightening of the wheel
guard band.

(Fig. 9)

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

For tool with locking screw type wheel guard (Fig. 10)

Mount the wheel guard with the protrusions on the wheel
guard band aligned with the notches on the bearing box.
Then rotate the wheel guard around 180°
counterclockwise. Be sure to tighten the screw securely.
To remove wheel guard, follow the installation procedure
in reverse.

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.

• Only actuate the shaft lock when the spindle is not

moving.

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

(Fig. 11)

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)

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

Installing or removing Ezynut (optional
accessory)

CAUTION:

• Do not use Ezynut with Super Flange or angle grinder

with “F” on the end of the model No. 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. 13)

Press shaft lock firmly and tighten Ezynut by turning the
abrasive wheel clockwise as far as it turns.
Turn the outside ring of Ezynut counterclockwise to
loosen.

(Fig. 14)

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. 15 & 16)

Installing or removing flex wheel

Optional accessory

WARNING:

•

Always use supplied guard when flex wheel is on
tool.

Wheel can shatter during use and guard helps to

reduce chances of personal injury.