DeWalt DW590K Manual page 25

Electronic overload protection
The electronic overload protection offers additional
safety: if the current exceeds a certain limit, the
electronics switch into overload mode, i.e. the
current is switched ON/OFF several times per
second. Thus, overheating of the motor windings is
avoided. Reduced operator pressure on the
machine makes the electronics switch back into
normal mode.
DI-switch (in-line protector PRCD) (DW590K only)
This machine features a residual current device that
cuts OFF the unit within 15 milliseconds in the event
that there is a difference (>10 mA) between the
currents flowing in and out of the unit. The user is
therefore protected should any water come into
contact with any of the electronic components.
To put the machine into operation, proceed as
follows:
Switch on the PRCD:
• I = ON (red LED lights up).
• Switch on the machine (also refer to the section
Switching ON and OFF).
• To switch OFF, proceed in reverse order.
O = Test button: the switch must break
the circuit (machine switches OFF)
• If in the test mode the switch does not break the
circuit, we recommend that the unit is inspected
by an authorized D
• It is not permitted to make any modifications to
the machine, in particular it is not allowed to
open the PRCD or to repair or replace the cable.
• Never use the PRCD as a main switch. Always
switch the PRCD under no load condition.
Electrical safety
The electric motor has been designed for one
voltage only. Always check that the power supply
corresponds to the voltage on the rating plate.
Your D WALT tool is double insulated in
E
accordance with EN 50144;
therefore no earth wire is required.
17
WALT Repair Agent.
E
Mains plug replacement
(U.K. & Ireland only)
• Should your mains plug need replacing and you
are competent to do this, proceed as instructed
below. If you are in doubt, contact an authorized
D WALT repair agent or a qualified electrician.
E
• Disconnect the plug from the supply.
• Cut off the plug and dispose of it safely; a plug
with bared copper conductors is dangerous if
engaged in a live socket outlet.
• Only fit 13 Amperes BS1363A approved plugs
fitted with the correctly rated fuse (1).
• The cable wire colours, or a letter, will be marked
at the connection points of most good quality
plugs. Attach the wires to their respective points
in the plug (see below). Brown is for Live (L) (2)
and Blue is for Neutral (N) (4).
• Before replacing the top cover of the mains plug
ensure that the cable restraint (3) is holding the
outer sheath of the cable firmly and that the two
leads are correctly fixed at the terminal screws.
Never use a light socket.
Never connect the live (L) or neutral (N)
wires to the earth pin marked E or
For 115 V units with a power rating exceeding 1500 W,
we recommend to fit a plug to BS4343 standard.
Using an extension cable
If an extension cable is required, use an approved
extension cable suitable for the power input of this
tool (see technical data). The minimum conductor
size is 1.5 mm 2 . When using a cable reel, always
unwind the cable completely.
E N G L I S H
.
en - 4