Operation Manual

ENGLISH
35
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
WARNING: Tool bits may be hot and
gloves should be worn when changing
or removing them to avoid personal
injury.
WARNING:
• Be aware of the location of pipework
and wiring.
• Apply only a gentle pressure to the
tool (approximately 20 kg). Excessive
force does not speed up drilling but
decreases tool performance and may
shorten tool life.
• Always hold the tool firmly with both
hands and ensure a secure stance.
Always operate the tool with the side
handle properly assembled.
NOTE: Operating temperature is -7˚ to +40˚C (19˚
to 104˚ F). Using the tool outside of this temperature
range will decrease the life of the tool.
Proper Hand Position (fi g. 6)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the
side handle (c), with the other hand on the main
handle (d).
Switching On and Off (fi g. 1)
D25721, D25722, D25723, D25762, D25763
To turn the tool on, depress the trigger switch (a).
To stop the tool, release the trigger switch.
D25721, D25722, D25723, D25762, D25763
The lock-on slider (b) allows the trigger switch (a) to
be locked on in chiselling mode only. If the lock-on
button is activated in drilling mode, as a feature the
tool will switch off automatically.
To turn the tool on, press the trigger switch(a).
To stop the tool, release the switch.
For continuous operation, press and hold down the
switch (a), slide the lock-on button (b) upwards and
release the switch.
To stop the tool in continuous operation, press the
switch briefly and release it. Always switch off the
tool when work is finished and before unplugging.
D25871
To turn the tool on, press the on/off rocker switch (a)
at the lower part of the trigger.
To stop the tool, press the on/ off rocker switch at
the upper part of the trigger.
Hammerdrilling
To turn the tool on, press the on/off switch(a).
To stop the tool, release the switch.
Drilling with a Solid Bit (fi g. 1)
D25721, D25722, D25723, D25762, D25763
1. Insert the appropriate drill bit.
2. Set the mode selector switch (f) to the
hammerdrilling position.
3. Set the electronic speed and impact control
dial(g).
4. Fit and adjust the side handle (c).
5. Mark the spot where the hole is to be drilled.
6. Place the drill bit on the spot and switch on the
tool.
7. Always switch off the tool when work is finished
and before unplugging.
Drilling with a Core Bit (fi g. 1)
1. Insert the appropriate core bit.
2. Assemble the centerdrill into the core bit.
3. Set the mode selector switch (f) to the
hammerdrilling position.
4. Turn the electronic speed and impact control
dial (g) to a medium or high speed setting.
5. Fit and adjust the side handle (c).
6. Place the centerdrill on the spot and switch on
the tool. Drill until the core penetrates into the
concrete approximately 1 cm.