DeWalt D25124 Instruction Manual page 29

These hammerdrills are professional power tools. DO NOT let
children come into contact with the tool. Supervision is required when
inexperienced operators use this tool.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of injury, turn unit off and
disconnect tool from power source before installing and
removing accessories, before making any adjustments or
removing/installing attachments or accessories. An accidental
start-up can cause injury.
WARNING: Prior to assembly and adjustment, always unplug tool.
Side Handle (Fig. 1)
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.
A side handle comes assembled with this rotary hammer. The side
handle (A) can be fitted to suit both right-hand and left-hand users.
TO ADJUST THE SIDE HANDLE
1. Loosen the side handle (A) by turning it counterclockwise.
2. Rotate the side handle to the desired position.
3. Tighten the side handle by turning it clockwise.
TO CHANGE SIDES
For right-hand users: slide the side handle clamp over the chuck,
handle at the left.
For left-hand users: slide the side handle clamp over the chuck,
handle at the right.
Trigger Switch (Fig. 1)
To start the rotary hammer, depress the trigger switch (D). To stop
rotary hammer, release the switch.
VARIABLE SPEED
The variable speed trigger switch (D) permits speed control. The
farther the trigger switch is depressed, the higher the speed of the
drill.
NOTE: Use lower speeds for starting holes without a centerpunch,
drilling in metal, plastics or ceramics, or driving screws. Higher speeds
are better for drilling in masonry for maximum efficiency.
Lock-on Button (Fig. 1)
WARNING: Be sure to release the locking mechanism before
disconnecting the plug from the power supply. Failure to do so will
cause the hammerdrill to start immediately the next time it is plugged
in. Damage or personal injury could result.
The lock-on button (F) is for use only when the rotary hammer is
stationary, mounted in a drill press stand or for chipping applications.
Before using the tool each time, be sure that the lock-on button
release mechanism is working freely.
Reversing Lever (Fig. 1)
The reversing lever (E) is used to reverse the rotary hammer for
backing out fasteners or jammed bits in drill-only mode.
CAUTION: When reversing to clear jammed bits, be ready for
strong reactive torque.
To reverse the rotary hammer, turn it off and align the reversing lever
(E) with the yellow arrow pointing backward (viewed when holding drill
in operating position).
To position the lever for forward operation, turn the rotary hammer off
and align the reversing lever (E) with the yellow arrow pointing forward
(viewed when holding drill in operating position).
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