Chisel Bit Adjustment; Operation - DeWalt D25831 Instruction Manual

Inserting and Removing SDS Max
Accessories (Fig. C)
1. Pull back the locking sleeve
The bit shank must be clean.
2. Turn the bit slightly until the sleeve snaps back
into position.
3. Ensure the bit is properly engaged.
NoTE: The bit needs to move several centimeters in and
out of the tool holder 10
4. To remove the bit, pull back the locking sleeve and pull
the bit out.
Fig. C
10
Electronic Speed and Impact Control
D25601, D25604, D25831
The electronic speed and impact control allows the
use of smaller drill bits without the risk of bit breakage,
hammerdrilling into light and brittle materials without
shattering and optimal tool control for precise chipping.
To set the control dial, turn the dial
The higher the number, the greater the speed and impact
energy. Dial settings make the tool extremely adaptable for
many different appli cations. The required setting depends
on the bit size and hardness of material being drilled.
Mode Selector (Fig. A)

CAUTION: Never change the mode while the unit
is running.

CAUTION: Do not change to hammerdrill mode with
chisel bit in tool holder. Personal injury and damage
to tool may result.
The D25601, D25604 uses two operating modes. To select
the required operating mode, rotate the mode selector
until the arrow points to the hammerdrilling or the chipping
icon. The D25831 uses only the chipping mode.
9 and insert the bit shank.
when properly engaged.
9
7 to the desired level.
6
Hammerdrilling Mode (
D25601, D25604
The tool simultaneously rotates and impacts the
work. This mode is appropriate for all concrete and
masonry operations.
Chipping Mode (
The spindle lock is engaged during chipping mode
so the tool impacts the work without rotating. This
mode is appropriate for light chipping, chiseling and
demolition applications.
NoTE: In chipping mode, the hammerdrill can also be used
as a lever to free a jammed drill bit.

Chisel Bit Adjustment (

Turn the mode selector to one of the chisel bit adjustment
icons to adjust the chisel to the desired position. There are
18 possible positions to set the angle of the chisel. After
finding the desired position, slightly maneuver the chisel bit
back and forth to ensure the chisel is properly engaged.
Power Indicator Lights (Fig. A)
The yellow brushwear indicator LED lights up when the
carbon brushes are nearly worn out indicating that the tool
needs servicing within the next 8 hours of use.
The red indicator LED lights up if the lock-on slider
used in any mode except the chipping mode.
The red indicator LED flashes if there is a fault with the tool
or if the brushes are completely worn.

OPERATION


WARNING: Always observe the safety instructions
and applicable regulations.

WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.
An accidental start-up can cause injury.

WARNING: To reduce the risk of personal injury,
ALWAYS ensure workpiece is anchored or
clamped firmly. If hammerdrilling thin material,
use a wood "back-up" block to prevent damage to
the material.

WARNING: To reduce the risk of personal injury,
ALWAYS operate the tool with the side handle
properly installed and securely tightened. Failure
to do so may result in the side handle slipping during
tool operation and subsequent loss of control. Hold
tool with both hands to maximize control.
NoTE: Operating temperature of this tool is -7˚ C to +40˚ C
(19˚ F to 104˚ F). Using the tool outside of this temperature
range will decrease the life of the tool.
Proper Hand Position (Fig. D)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.
ENglIsh
)
)
)
is
2
21