Switching On And Off; Troubleshooting - Black and Decker KR520HD Manual Del Usuario

90552583 KR520HD KR550HD
Selecting the direction of rotation (fig. E)
For drilling and for tightening screws, use forward (clockwise) rotation. For loosening
screws or removing a jammed drill bit, use reverse (counterclockwise) rotation.
• To select forward rotation, push the forward/reverse slider (3) to the centre position.
• To select reverse rotation, push the forward/reverse slider to the left.
WARNING: Never change the direction of rotation while the motor is running
Selecting the drilling mode
• For drilling in masonry, set the drilling mode selector (4) to the
• For drilling in other materials and for screwdriving, set the drilling mode selector to the
position.
Setting the drilling depth (fig. F)
• Slacken the side handle (7) by turning the grip counterclockwise.
• Set the depth stop (6) to the desired position. The maximum drilling depth is equal to the
distance between the tip of the drill bit and the front end of the depth stop.
• Tighten the side handle by turning the grip clockwise.

Switching on and off

• To switch the tool on, press the variable speed switch (1). The tool speed depends on
how far you press the switch. As a general rule, use low speeds for large diameter drill
bits and high speeds for smaller diameter drill bits.
• For continuous operation, press the lock-on button (2) and release the variable speed
switch. This option is available only at full speed. This option does not work in reverse
rotation.
• To switch the tool off, release the variable speed switch. To switch the tool off when in
continuous operation, press the variable speed switch once more and release it.
Problem
• Unit will not start.
For assistance with your product, visit our website www.blackanddecker.com for the
location of the service center nearest you or call the BLACK & DECKER help line at
1-800-544-6986.
6/16/09 11:11 AM Page 7

TROUBLESHOOTING

Possible Cause
• Cord not plugged in.
• Circuit fuse is blown.
• Circuit breaker is tripped.
• Cord or switch is damaged.
7
position.
Possible Solution
• Plug tool into a working
outlet.
• Replace circuit fuse.
(If the product repeatedly
causes the circuit fuse to
blow, discontinue use
immediately and have it
serviced at a Black &
Decker service center or
authorized servicer.)
• Reset circuit breaker.
(If the product repeatedly
causes the circuit
breaker to trip,
discontinue use
immediately and have it
serviced at a Black &
Decker service center or
authorized servicer.)
• Have cord or switch
replaced at Black
& Decker Service Center
or Authorized Servicer