Operation - Makita BGA450 Instruction Manual

OPERATION

A
B
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 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.
• 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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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 work-
piece.
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 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.
Operation with diamond wheel (accessory )
WARNING:
• Forcing and exerting excessive pressure or allowing the wheel to bend,
pinch or twist in the cut can cause overheating of the motor and
dangerous kickback of the tool.
CAUTION:
• After cutting operation, make sure that the diamond wheel stops
revolving completely. Then, place the tool. It is dangerous to place the
tool before turning off the tool. If there are dust or dirt around the tool, the
tool may suck in them.
Be sure that the wheel does not contact the workpiece. Turn the tool on and
hold the tool firmly. Wait until the wheel attains full speed. Now simply move
the tool forward over the workpiece surface, keeping it flat and advancing
smoothly until the cutting is completed.
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