Operation; Maintenance; Protecting The Environment - Black & Decker G720N Instruction Manual

14 • ENGLISH
the side of cut-off wheel. Abrasive cut-off wheels
are intended for peripheral grinding, side forces
applied to these wheels may cause them to shatter.
e. Always use undamaged wheel flanges that are
of correct size and shape for your selected wheel.
Proper wheel flanges support the wheel thus reducing
the possibility of wheel breakage. Flanges for cut-off
wheels may be different from grinding wheel flanges.
f. Do not use worn down wheels from larger power
tools. Wheel intended for larger power tool is not
suitable for the higher speed of a smaller tool and may
burst.

OPERATION

Operatingyour angle grinder (Fig. A)
To switch on, push the slider switch forward (1). To switch
off, press the rear of the slider switch.
Fitting the discs (Fig. B and C)
Proceed as follows:
f Disconnect the plug from the electricity supply.
f Ensure the guard is fitted. Place the inner flange (7)
on the spindle. Ensure it is located on the two flats.
f Place the abrasive disc on the spindle and inner
flange (8). Ensure it is correctly located.
f Fit the threaded outer flange (9), making sure it is
facing in the correct direction for the type of disc
fitted. For grinding discs, the flange (9) is fitted with
the raised portion facing towards the disc. For cutting
discs, the flange (9) is fitted with the inner portion
facing away from the disc.
f Hold the spanner on the flats of the spindle to prevent
rotation of the disc and tighten the outer flange with
the spanner provided.
f Press in the spindle lock button and rotate the spindle
until it locks (Fig. C). Keeping the lock button pressed
in, tighten the outer flange with the spanner provided.
Fitting sanding discs (Fig. D)
f Use a sanding disc with the backing pad for sanding
with your angle grinder.
f Disconnect the plug from the electricity supply.
f Remove the guard.
f Place the flange on the spindle. Place the backing
pad on the spindle and inner flange, ensuring it is
correctly located.
f Mount the fibre backed abrasive disc on the backing pad.
f Fit the threaded outer flange and tighten as explained
in 'Fitting the discs'.
Handy hints (Fig. E)
Hold your angle grinder firmly with one hand around the
side handle and the other around the body of your angle
grinder.
f Always position the guard so that as much of the
exposed disc as possible is pointing away from you.
f Be prepared for a stream of sparks when the disc
touches the metal.
When grinding, always maintain the correct angle between
the disc and the work surface (15°)(Fig. D). This increases
the removal capacity of the disc and avoids unnecessary
overloading.
Overload
Overloading will cause damage to the motor of your angle
grinder. This can happen if your angle grinder is subjected to
heavy duty use for prolonged periods of use. Do not in any
circumstances, attempt to exert too much pressure on your
angle grinder to speed up your work. The abrasive discs
operate more efficiently when a light pressure is exerted,
thus avoiding a drop in the speed of your angle grinder.

MAINTENANCE

Keep guards, air vents and the motor housing as clear as
possible of dust and dirt. Wipe with a clean cloth and blow
through with a low-pressure air supply. Excessive build-up
of metal dust can cause tracking of electrical current from
the internal parts to exposed metal parts.
Do not overload your angle grinder. Overloading causes
a reduction in speed and efficiency, causing your angle
grinder to become too hot. If this happens, operate your
angle grinder under no load for one or two minutes until it
has cooled to normal operating temperature. Switching your
angle grinder off under load will reduce the life of the switch.
Important! To assure product SAFETY and RELIABILITY,
repairs, maintenance and adjustment (other than those
listed in this manual) should be performed by authorized
service centers or other qualified service personnel,
always using identical replacement parts.

PROTECTING THE ENVIRONMENT

Separate collection. This product must not be
disposed of with normal household waste. Should
you find one day that your BLACK+DECKER
product needs replacement, or if it is of no further
use to you, do not dispose of it with household
waste. Make this product available for separate
collection.
Separate collection of used products and packaging
allows materials to be recycled and used again.
Re-use of recycled materials helps prevent
environmental pollution and reduces the demand
for raw materials. Local regulations may provide for
separate collection of electrical products from the
household, at municipal waste sites or by the
retailer when you purchase a new product.