Makita 447 M Instrucciones De Manejo página 15

8 Troubleshooting
Fault
‡ Motor does not start
‡ Motor does not run in auto-
matic mode
‡ The acoustic
sounds. (Reduced suction
power)
‡ The vacuum
switches off during wet
cleaning
‡ Voltage fluctuations
Cause
> Fuse of the mains socket has
blown.
> Overload protection switch
has tripped.
> Self-acting carbon brush is
worn.
> Power tool is defective or not
connected properly.
> The power rating of the elec-
trical tool is too low.
warning > Suction power selected with
suction power control is too
low.
> Hose diameter is not right for
switch position.
> Clogged suction hose/nozzle. •
> Filter bag is full.
> Filter element is clogged.
> Defective cleaning mecha-
nism
cleaner > Tank is full.
> Impedance of power supply is
too high.
Remedy
• Connect mains fuse.
• Switch off the vacuum cleaner
and allow it to cool for approx.
5 minutes. If the cleaner can-
not be started again, contact
the service department.
• Have carbon brushes changed
by Service.
• Check that the power tool
works or that the plug is insert-
ed correctly.
• Note that minimum power rat-
ing is P>40W
• Set suction power in accord-
ance with section 4.2.3. „Set-
ting suction power".
• Set correct switch position for
hose diameter.
Clean suction hose/nozzle
• See section 7.2.2 „Replacing
filter bag".
• See section 4.5 „Cleaning filter
element" and 7.2.3 „Replacing
filter element".
• Contact Service
• Switch off the cleaner. Empty
the tank.
• Connect the cleaner to another
socket closer to the fuse box.
Voltage fluctuations over 7%
should not occur if the imped-
ance at the transfer point is
≤ 0.15 Ω .
MAKITA 447 M
english
11