DeWalt D25831 - Page 23

21
ENGLISH
Setting the Electronic Speed and Impact Control Dial
(Fig. A, C)
D25601, D25602, D25603, D25831
Turn the dial
7
to the desiredlevel. Turn the dial upwards for higher
speed and downwards for lowerspeed. The required setting is a matter of
experience, e.g.
• when chiselling or drilling in soft, brittle materials or when minimum
break-out is required, set the dial to a low setting;
• when breaking or drilling in harder materials, set the dial to a
highsetting.
Setting the Two Stage Mechanical Clutch (Fig. C)
D25602, D25603
NOTICE: Always turn the tool off before changing torque control
settings or damage to the tool mayresult.
Move the torque control lever
13
to setting 40Nm or 80Nm as needed
forapplication.
• Clutch Setting 40Nm
18
is designed for most drilling applications and
is designed to easily clutch out when the drill bit encounters re-bar or
other foreignsubstances.
• Clutch Setting 80Nm
19
is designed for higher torque applications
such as core-bits and deep hole drilling and is designed to clutch out at
a higher torquethreshold.
NOTE: If it is not possible to select position 80Nm, run the unit under load
and tryagain.
Each time the tool is plugged in, it will automatically default to clutch
setting 1 into clutch setting 40Nm
18
, the most sensitivesetting.
Depth Rod
(Additional Accessory)
1. Push in and hold the depth rod release button on the sidehandle.
2. Move the depth rod so the distance between the end of the rod and
the end of the bit equals the desired drillingdepth.
3. Release the button to lock rod intoposition. When drilling with the
depth rod, stop when end of rod reaches surface ofmaterial.
OPERATION
Instructions for Use

WARNING: Always observe the safety instructions and
applicableregulations.

WARNING: To reduce the risk of serious personal injury,
turn tool off and disconnect tool from power source before
making any adjustments or removing/installing attachments
oraccessories. 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 (Fig. F)

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
3
, with the
other hand on the main handle
4
.
Switching On and Off (Fig. A)
D25501, D25601, D25602, D25603
To turn the tool on, depress the trigger switch
1
.
To stop the tool, release the triggerswitch.
D25601, D25602, D25603
The lock-on slider
2
allows the trigger switch
1
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
1
.
To stop the tool, release theswitch.
For continuous operation, press and hold down the switch
1
, slide the
lock-on button
2
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.
D25820, D25831
To turn the tool on, press the on/off rocker switch
1
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
1
.
To stop the tool, release theswitch.
Drilling with a Solid Bit (Fig. A)
D25501, D25601, D25602, D25603
1. Insert the appropriate drillbit.
2. Set the mode selector switch
6
to the hammerdrillingposition.
3. D25601, D25602, D25603 only: Set the electronic speed and impact
control dial
7
.
4. Fit and adjust the side handle
3
.
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 (Fig. A)
1. Insert the appropriate corebit.
2. Assemble the centerdrill into the corebit.
3. Set the mode selector switch
6
to the hammerdrillingposition.
4. D25601, D25602, D25603 only: Turn the electronic speed and impact
control dial
7
to a medium or high speedsetting.
5. Fit and adjust the side handle
3
.
6. Place the centerdrill on the spot and switch on thetool. Drill until the
core penetrates into the concrete approximately 1cm.
7. Stop the tool and remove thecenterdrill. Place the core bit back into the
hole and continuedrilling.
8. When drilling through a structure thicker than the depth of the core
bit, break away the round cylinder of concrete or core inside the bit at
regularintervals.
To avoid unwanted breaking away of concrete around the hole, first drill