Makita BGA402, BGA450, BGA452 instruction manual Operation, Grinding and sanding operation

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 European countries, when using a diamond wheel, the ordinary guard can be used.)

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. Be sure to tighten the screw securely.

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

Installing or removing depressed center grinding wheel/Multi-disc

OPERATION

WARNING:

•	It should never be necessary to force the tool. The
	weight of the tool applies adequate pressure.
	Forcing and excessive pressure could cause
	dangerous wheel breakage.
•	ALWAYS replace wheel if tool is dropped while
	grinding.
•	NEVER bang or hit grinding disc or wheel onto
	work.
•	Avoid bouncing and snagging the wheel, especially
	when working corners, sharp edges etc. This can
	cause loss of control and kickback.
•	NEVER use tool with wood cutting blades and other

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WARNING:

1.Lock nut

2.Depressed center grinding wheel/Multi-disc

3.Inner flange

sawblades. Such blades when used on a grinder

frequently kick and cause loss of control leading to

personal injury.

CAUTION:

•	Make the depth of a single cut up to 5 mm. Adjust
	pressure on the tool so that the tool does not slow
	down during the operation.
•	After operation, always switch off the tool and wait
	until the wheel has come to a complete stop before
	putting the tool down.

•Always use supplied guard when depressed center

grinding wheel/Multi-disc is on tool. Wheel can shatter during use and guard helps to reduce chances of personal injury.

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

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.

•	If the tool is operated continuously until the battery
	cartridge has discharged, allow the tool to rest for
	15 minutes before proceeding with a fresh battery.

Grinding and sanding operation

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1.Lock nut wrench

2.Shaft lock

AB

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ALWAYS hold the tool firmly with one hand on housing and the other on the side handle. Turn the tool on and then apply the wheel or disc to the workpiece.

In general, keep the edge of the wheel or disc at an angle of about 15 degrees to the workpiece surface.

During the break-in period with a new wheel, do not work

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

WARNING:

Only actuate the shaft lock when the spindle is not moving.

the grinder in the B direction or it will cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both A and B direction.

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