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6. Be sure that the surfaces of the inner and
external flanges are clean.
7. Position the new disc, the outside flange (
E
),
the washer (
D
) and tighten the screw (
C
);
suitably tighten the lock screw to prevent
the disc from skidding, while at same time
being careful not to damage the disc by
deforming the contact surface because of a
too big hold.
IMPORTANT: ONLY USE REINFORCED ABRASIVE
DISCS, RECOMMENDED AND WITH A NOT
EXPIRED VALIDITY DATE.
8. Lower the moving protective cap and put the
cover again and fix it with the two screws.
9. Start the machine for a while to check if the disc is correctly assembled and that it does
not touch any parts of the tool.
CAUTION
: Before any adjustment, repair or maintenance work, and before changing the disc,
switch off the machine and disconnect it from any current source by removing the plug from the
socket.
In case you find out any damage to the protection devices or irregularities while processing or
checking the machine, you must get it repaired immediately by qualified persons.
Before use check that the protection and safety devices are perfectly efficient. After carrying out
the work, make a general cleaning of the machine.
Periodically clean the ventilation inlets of the engine.
Be sure that the protective cap can slide freely.
Be sure that the head and the clamp can smoothly lift and lower.
Check the noise of the engine periodically and brushes’ consumption.
Periodically check that the supply cable is not damaged.
CHECK AND REPLACEMENT OF CARBON BRUSHES
CAUTION:
Before checking the carbon brushes, disconnect the machine from the power supply.
The life of the carbon brushes can vary, and it depends on the
motor working load. If the tool is new or after the replacement
of the carbon brushes, check the carbon brushes after the first
50 hours of use.
After the first check, you must control the carbon brushes
every 10 hours of use until it is necessary to replace them.
The housing of the carbon brushes (
A
) are positioned on each
side of the motor. Change both the carbon brushes if the
carbon of one of the brushes is worn and it is smaller than 5
mm, or in case a spring or a wire is burnt or damaged. If the
carbon brushes are still usable after the inspection, re-
assemble them on their original position.
MAINTENANCE
