Ratio PRO XF750 Manual De Instrucciones página 40

2. Rough Grinding
The best roughing results are achieved when
setting the machine at an angle of 30° to 40°.
Move the machine back and forth with moderate
pressure. In this manner, the workpiece will
not become too hot, does not discolour and no
grooves are formed.
Warning! Never use a cutting disc for
roughing.
3. Cutting(See Fig 7)
Warning! For cutting metal, always work
with the wheel guard for cutting.
When cutting, do not press, tilt or oscillate the
machine. Work with moderate feed, adapted to
the material being cut.
Do not reduce the speed of running down cutting
discs by applying sideward pressure.
The direction in which the cutting is performed is
important.
The machine must always work in an up-grinding
motion. Therefore, never move the machine in
the other direction! Otherwise, the danger exists
of it being pushed uncontrolled out of the cut.
40
WORKING HINTS FOR
YOUR ANGLE GRINDER
If your power tool becomes too hot, run no load
for 2-3 minutes to cool the motor.
Never start your angle grinder with the disc/
accessory in contact with the workpiece.
Always start at no load to achieve maximum
speed then start working.
Do not force the disc to work faster, reducing the
Disc's moving speed means longer working time.
When grinding, always work with a 30° to 40°
angle between disc and workpiece. Larger
angles will cut ridges into the workpiece and
affect the surface finish. Move the angle grinder
across and back and forth over the workpiece.
When using a cutting disc, never change the
cutting angle otherwise you will stall the disc and
angle grinder motor or break the disc.
When cutting, only cut in the opposite direction to
the disc rotation. If you cut in the same direction
as the disc rotation the disc may push itself out
of the cut slot.
When cutting very hard material best results can
be achieved with a diamond disc.
When using a diamond disc it will become very
hot. If this happens you will see a full ring of
sparks around the rotating disc. Stop cutting and
allow cooling at no load speed for 2-3 minutes.
Always ensure the workpiece is firmly held or
clamped to prevent movement.
MAINTENANCE
Remove the plug from the socket before
carrying out any adjustment, servicing or
maintenance.
Your power tool requires no additional lubrication
or maintenance.
There are no user serviceable parts in your
power tool. Never use water or chemical
cleaners to clean your power tool. Wipe clean
with a dry cloth. Always store your power tool
in a dry place. Keep the motor ventilation slots
clean. Keep all working controls free of dust.
Occasionally you may see sparks through the
ventilation slots. This is normal and will not
damage your power tool.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a
hazard.