Problem Solution - Worx Professional WU381 Manual Del Usuario

For simultaneous drilling and impacting of
concrete or masonry, choose the Hammer
drilling position.
For drilling into steel, wood and plastics
choose the Rotary drilling position.
For impacting only - for light chipping, chiseling
and demolition applications choose the
Hammer position.
Warning: The operating mode selector switch may be actuated
only at a standstill.
8
OVERLOAD PROTECTION
When overloaded, the motor comes to a stop. Relieve the load on the
machine immediately and allow cooling for approx. 30 seconds at the
highest no-load speed.
9
TEMPERATURE DEPENDENT OVERLOAD PROTECTION
When using as intended for, the power tool cannot be subject
to overload. When the load is too high or the allowable battery
temperature of 75°C is exceeded, the electronic control switches off
the power tool until the temperature is in the optimum temperature
range again.
10
PROTECTION AGAINST DEEP DISCHARGING
The Li-ion battery is protected against deep discharging by the
"Discharging Protection System". When the battery is empty, the
machine is switched off by means of a protective circuit: The inserted
tool no longer rotates.
Working hints for your tool
If your power tool becomes over heated, set the speed to maximum
and run no load for 2-3 minutes to cool the motor. SDS-plus tungsten
carbide drill bits should always be used for concrete and masonry.
When drilling in metal, only use HSS drill bits in good condition. Where
possible use a pilot hole before drilling a large diameter hole.

Problem solution

1
REASONS FOR DIFFERENT CHARGING TIMES
Your charge time can be affected by many reasons which are not
defects in your product. If the battery pack is only partly discharged it
may be re-charged in less than 1 hour. If the battery pack and ambient
temperature are very cold then re-charging may take 1-1.5 hours. If
the battery pack is very hot it will not re-charge because the internal
temperature safety cutout will prevent it. If the battery pack is very hot
you must remove your battery pack from the charger and allow your
battery pack to cool first to ambient temperature and then recharging
can be started. If you charge a second battery pack immediately after
the first then the charger can be overheated. Always allow at least 15
minutes rest between battery pack charging.
2
REASONS FOR DIFFERENT BATTERY PACK WORKING TIMES
Charging time problems, having not used a battery pack for a
9