Using An Extension Cable; Selecting The Operating Mode; Assembly And Adjustments - DeWalt D25721 Original Instructions Manual

Mains Plug Replacement
(Middle East and Africa)
If a new mains plug needs to be fitted:
• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in
the plug.
• Connect the blue lead to the neutral terminal.
WARNING: No connection is to be
made to the earth terminal.
Follow the fitting instructions supplied with good
quality plugs. Recommended fuse: 13 A.

Using an Extension Cable

If an extension cable is required, use an approved
extension cable suitable for the power input of this
tool (see Technical Data). The minimum conductor
size is 1 mm 2 ; the maximum length is 30 m.
When using a cable reel, always unwind the cable
completely.

ASSEMBLY AND ADJUSTMENTS

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.
Assembling and Fitting the Side
Handle (fi g. 2A, 2B)
The side handle (c) can be mounted on either side
of the machine to suit both right- and left-handed
users.
WARNING: Always operate the
tool with the side handle properly
assembled.
D25721, D25723
MOUNTING IN FRONT POSITION (FIG. 2A)
1. Snap the steel ring (j) over the collar (n) behind
the tool holder (l). Squeeze both ends together,
mount the bush (k) and insert the pin (m).
2. Place the side handle clamp (i) and screw on
the clamp wheel (h). Do not tighten.
WARNING: Once assembled, the side
handle clamp should never be removed.
3. Screw the side handle (c) into the bush (k) and
then into clamp wheel. Tighten securely.
4. Rotate the side handle mounting assembly to
the desired position. For drilling horizontally with
a heavy drill bit, we recommend to place the
side handle at an angle of approximately 20° for
optimum control.
5. Lock the side handle mounting assembly in
place by tightening the clamp wheel (h).
D25871 (FIG. 2B)
1. Unscrew the side handle knob (p).
2. Slide the side handle assembly onto the
machine locating the steel ring (j) in the
mounting area (y). The correct position of the
side handle is between head and middle of the
tube.
3. Adjust the side handle (c) to the desired angle.
4. Slide and rotate the side handle to the desired
position.
5. Lock the side handle in place by tightening the
knob (p).
Inserting and Removing SDS Max
Accessories (fi g. 1, 4A, 4B)
®
This machine uses SDS Max
to the inset in figure 4B for a cross-section of an
®
SDS Max bit shank).
1. Clean the bit shank.
2. Pull back the locking sleeve (o) and insert the bit
shank.
3. Turn the bit slightly until the sleeve snaps into
position.
4. Pull on the bit to check if it is properly locked.
The hammering function requires the bit to be
able to move axially several centimetres when
locked in the tool holder.
5. To remove a bit pull back the tool holder locking
sleeve/collar (o) and pull the bit out of the tool
holder (l).

Selecting the Operating Mode

(fi g. 1)
Hammerdrilling:
D25721, D25723
for concrete, brick, stone and masonry
drilling operations.
EN G LI SH
®
bits and chisels (refer
9