Maintenance; Carbon Plate (Optional Accessory); Sanding Operation; Replacing Carbon Brushes - Makita 9403 Instruction Manual

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1. Steel plate
2. Carbon plate
3. Strap washer
OPERATION

MAINTENANCE

1. Limit mark

Carbon plate (optional accessory)

003390
For greater sanding efficiency and to help the belt run cooler,
install an optional carbon plate on the steel plate when sand-
ing hardwood or steel.
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Sanding operation

CAUTION:
• The tool should not be in contact with the workpiece
surface when you turn the tool on or off. Otherwise a
poor sanding finish or damage of the belt may result.
Hold the tool firmly with both hands. Turn the tool on and wait
until it attains full speed. Then gently place the tool on the
workpiece surface. Keep the belt flush with the workpiece at
all times and move the tool back and forth.
Never force the tool. The weight of the tool applies adequate
pressure. Excessive pressure may cause stalling, overheat-
ing of the motor, burning of the workpiece and possible kick-
back.
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.

Replacing carbon brushes

001145
Remove and check the carbon brushes regularly. Replace
when they wear down to the limit mark. Keep the carbon
brushes clean and free to slip in the holders. Both carbon
brushes should be replaced at the same time. Use only iden-
tical carbon brushes.
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