Ryobi RBS904 Mode D'emploi page 17

BASIC OPERATION OF THE BAND SAW
A band saw is basically a "curve cutting" machine that
can also be used for straight-line cutting operations
like cross cutting, mitring, beveling, compound cutting,
and resawing. When using the band saw for straight
line cutting, the user can install a fence using an
appropriately sized piece of wood clamped to the table
with "C" clamps. It is not capable of making inside or
non-through cuts.
Before starting a cut, watch the saw run. If you
experience excessive vibration or unusual noise, stop
immediately. Turn the saw off and unplug the saw. Do
not restart until locating and correcting the problem.
CUTTING PROCEDURES
■
Hold the workpiece firmly against the saw table.
■
Use gentle pressure and both hands when feeding
the work into the blade. Do not force the work; allow
the blade to cut.
■
The smallest diameter circle that can be cut is
determined by blade width. A 6.35 mm (1/4") wide
blade will cut a minimum diameter of 38 mm (1-1/2").
■
Keep your hands away from the blade. Do not hand
hold pieces so small your fingers will go under the
blade guard.
■
Avoid awkward operations and hand positions where
a sudden slip could cause serious injury from contact
with the blade. Never place hands in blade path.
■
Use extra supports (tables, saw horses, blocks, etc.)
when cutting large, small, or awkward workpieces.
■
Never use a person as a substitute for a table
extension or as additional support for a workpiece
that is longer or wider than the basic saw table.
■
When cutting irregularly shaped workpieces, plan
your work so it will not pinch the blade. For example,
a piece of molding must lay flat on the saw table.
Workpieces must not twist, rock, or slip while being
cut.
When backing up the workpiece, the blade may bind
in the kerf (cut). This is usually caused by sawdust
clogging the kerf or when the blade comes out of the
guides. If this happens:
■
Switch off the saw. Wait until the saw has come to
a full and complete stop. Unplug the saw from the
power source.
■
Wedge the kerf open with a flat screwdriver or
wooden wedge.
■
Open front cover and turn the upper wheel by hand
while backing up the workpiece.
RELIEF CUTS
Relief cuts are made when an intricate curve (too small
a radius for the blade) is to be cut. Cut through a scrap
section of the workpiece to curve in pattern line then
carefully back the blade out. Several relief cuts should
be made for intricate curves before following the pattern
line as sections are cut off of curve "relieving" blade
pressure.
SCROLL CUTTING
For general type scroll cutting, follow the pattern lines
by pushing and turning the workpiece at the same time.
Do not try to turn the workpiece while engaged in the
blade without pushing it – the workpiece could bind or
twist the blade.
REMOVING JAMMED MATERIAL
Never remove jammed cutoff pieces until the blade has
come to a full and complete stop.
■
Switch off the saw. Wait until the saw has come to a
full and complete stop.
■
Unplug the saw from the power source before
removing jammed material.
AVOIDING INJURY
■
Make sure saw is level and does not rock. Saw
should always be on a firm, level surface with plenty
of room for handling and properly supporting the
workpiece.
■
Bolt saw to the support surface to prevent slipping,
walking, or sliding during operations like cutting long,
heavy boards.
■
Switch off the saw and unplug cord from the power
source before moving the saw.
■
Do not remove jammed cutoff pieces until blade has
come to a full and complete stop.
■
Choose the right size and style blade for the material
and type of cut you plan to do.
■
Make sure that the blade teeth point down toward
the saw table, that the blade guides, thrust bearings,
and blade tension are properly adjusted, that the
blade guide knob is tight, and that no parts have
excessive play.
■
To avoid accidental blade contact, minimize blade
breakage, and provide maximum blade support,
always adjust the blade guide assembly to just clear
the workpiece.
■
Use only recommended accessories.
■
With the exception of the workpiece and related
support devices, clear everything off the saw table
before turning the saw on.
■
Properly support round materials such as dowel
rods or tubing because they have a tendency to roll
during a cut causing the blade to "bite". To avoid this,
always use a "V" block or clamp workpiece to a mitre
gauge.
■
Before removing loose pieces from the saw table,
switch off the saw and wait for all moving parts to
stop.
SWITCHING ON/OFF THE PRODUCT
See Figure 12.
■
Press I to switch on the product.
■
Press O to switch off the product.
BEFORE LEAVING THE SAW
See Figure 12.
Original Instructions
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