Worx WU171 Manual Original página 8

Operating instructions
Note: Before using the tool, read the instruction book carefully.
INTENDED USE
The machine is intended for driving in and loosening screws as well as
for drilling in wood, metal and plastic.
BEFORE PUTTING INTO OPERATION
A
Charging the battery
The battery charger supplied is matched to the Li-ion battery installed
in the machine. Do not use another battery charger.
The Li-ion battery is protected against deep discharging. When
the battery is empty, the machine is switched off by means of a
protective circuit: The tool holder no longer rotates.
In a warm environment or after heavy use, the battery pack may
become too hot to permit charging. Allow time for the battery to cool
down before recharging.
When the battery pack is charged for the first time and after
prolonged storage, the battery pack will accept a 100% charge after
several charge and discharge cycles.
B
TO REMOVE THE BATTERY PACK (See Fig. A1)
Depress the Battery Pack Release Button(8) firmly first and then
slide the Battery Pack out from your tool.
TO INSTALL THE BATTERY PACK (See Fig. A2)
C
Slide the fully charged Battery Pack onto the tool with sufficient force
until it clicks into position.
OPERATION
1
ON / OFF SWITCH (See Fig. B)
Depress the On/Off switch to start and release it to stop your drill.
The on/off switch is fitted with a brake function which stops your
chuck immediately when you quickly release the switch.
It is also a variable speed switch that delivers higher speed and
torque with increased trigger pressure. Speed is controlled by the
amount of switch trigger depression.
Warning: Do not operate for long periods at low speed
because excess heat will be produced internally.
2
SWITCH LOCK
The switch trigger can be locked in the OFF position. This helps to
reduce the possibility of accidental starting when not in use. To lock
the switch trigger, place the rotation control in the center position.
3
REVERSIBLE (See Fig. B)
For drilling and screw driving use forward rotation marked "
(lever is moved to the left). Only use reverse rotation marked "
(lever is moved to the right) to remove screws or release a jammed
drill bit.
Warning: Never change the direction of rotation when the
chuck is rotating, wait until it has stopped!
4
TWO-SPEED GEAR CONTROL (See Fig. C)
The drill has a two-speed gear control designed for drilling or driving
at LO (mark is 1) or HI (mark is 2) speeds. A slide switch is located on
top of the drill to select either LO or HI speed. When using the drill in
the LO speed range, the speed will decrease and the drill will have
8
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