Ratio PRO XF20-C Manual De Instrucciones página 42

2. PENDULUM ACTION CONTROL (See Fig. I)
The pendulum action varies the forward
cutting angle of the blade for increased cutting
efficiency. This can also be adjusted during
no load running. Refer to the chart 1 for more
details. Do not use excessive blade force when
cutting with the pendulum action. The blade cuts
on the upward stroke only.
Chart 1
Thin materials. Fine cuts. Tight
0
curves.
Hard materials, (e.g. steel & chip-
I
board)
Thick materials ( e.g. wood ) &
II
plastic
Fast cuts (e.g. softwood). Cutting in
III
the direction of the wood grain.
I
WORKING HINTS FOR
YOUR JIGSAW
If your jig saw becomes too hot, especially when
used at low speed, set the speed to maximum
and run no Load for 2-3 minutes to cool the
motor. Avoid prolonged usage at very low
speeds.
GENERAL
Always use a blade suited to the material and
material thickness to be cut. Always ensure the
work–piece is firmly held or clamped to prevent
movement. For easier control, use low speed to
start cutting, then increase to correct speed.
Any movement of the material may affect the
quality of the cut. The blade cuts on the upward
stroke and may chip the uppermost surface or
face of the work piece. Ensure your uppermost
surface is a non-visible surface when your work is
finished.
42
CUTTING LAMINATES
Use a fine tooth blade when cutting most
laminates and thin wood materials. To reduce
edge chipping, clamp pieces of waste wood at
both ends on both sides and cut through the
waste wood during cutting.
CIRCLE CUTTING
Do not use the pendulum action when cutting tight
circles or angles.
PLUNGE SAWING (SEE FIG J, K)
Plunge cutting may be used only on soft materials
such as wood, aerated concrete, gypsum plaster
boards, etc.
Use only short saw blades.
Place the front edge of the base plate on the
workpiece and switch on. Press the machine
firmly against the workpiece and plunge the saw
blade slowly into the workpiece.
As soon as the complete surface of the base plate
rests on the work piece, continue to saw along the
cutting line.
J
K
METAL CUTTING
Use a finer tooth blade for ferrous metals and a
coarse tooth blade for non-ferrous metals. When
cutting thin sheet metals always clamp wood
on both sides of the sheet to reduce vibration or
tearing of the sheet metal. Both wood and sheet
metal must be cut. Do not force the cutting blade
when cutting thin metal or sheet steel as they
are harder materials and will take longer to cut.