Operation; Maintenance - Makita 4112H Instruction Manual

OPERATION

1
1. Notch
2. Cutting line

MAINTENANCE

CAUTION:
Be sure to pull the tool when cutting a workpiece.
• Use this tool for straight line cutting only. Cutting curves
can cause stress cracks or fragmentation of the diamond
wheel and abrasive cut-off wheel resulting in possible
injury to persons in the vicinity.
• After operation, always switch off the tool and wait until
the wheel has come to a complete stop before putting
the tool down.
• When cutting concrete blocks, tiles or masonry
materials, do not make a cut in depth more than 60 mm
(2-3/8"). When you need to cut a workpiece over 60 mm
(2-3/8") up to 100 mm (4"), make more than two passes
of cuts. The depth of the most efficient cut is about 40
mm (1-9/16").
Hold the tool firmly with both hands. First keep the wheel
004019
2 without making any contact with a workpiece to be cut. Then
turn the tool on and wait until the wheel attains full speed.
The cut is made by pulling the tool toward you (not by push-
ing away from you). Align the notch on the base with your
cutting line when performing a cut.
Switch off the tool on the position posed when finishing a cut.
Raise the tool after the wheel comes to a complete stop.
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
Dressing diamond wheel
If the cutting action of the diamond wheel begins to diminish,
use an old discarded coarse grit bench grinder wheel or con-
crete block to dress the diamond wheel. To do this, tightly
secure the bench grinder wheel or concrete block and cut in
it.
9