DeWalt D25501-AR

ENGLISH
24
hands and arms. Use gloves to provide extra cushion and
limit exposure by taking frequent restperiods.
• An extension cord must have adequate wire size
for safety. An undersized cord will cause a drop in
line voltage resulting in loss of power and overheating.
When using more than one extension to make up the
total length, be sure each individual extension contains
at least the minimum wire size. The following table
shows the correct size to use depending on cord length
and nameplate ampere rating. If in doubt, use the next
heavier gauge. The smaller the gauge number, the heavier
thecord.
Voltage
(Volts)
Total length of cord in meters (m)
120–127V 0–7 7–15 15–30 30–50
220–240V 0–15 15–30 30–60 60–100
Rated
Ampere
Range
Minimal cross-sectional area of the
cord in meters (mm
2
)
0–6A 1.0 1.5 1.5 2.5
6–10A 1.0 1.5 2.5 4.0
10–12A 1.5 1.5 2.5 4.0
12–16A 2.5 4.0 Not Recommended
The label on your tool may include the following symbols. The
symbols and their definitions are asfollows:
V ......................... volts
Hz .......................hertz
min ..................... minutes
or DC ......direct current
...................... Class I Construction
(grounded)
…/min ..............per minute
BPM ....................beats per minute
IPM ..................... impacts per minute
RPM .................... revolutions per
minute
sfpm ................... surface feet per
minute
SPM .................... strokes per minute
A ......................... amperes
W ........................watts
or AC ...........alternating current
or AC/DC .... alternating or
direct current
...................... Class II
Construction
(double insulated)
n
o
........................no load speed
n .........................rated speed
......................earthing terminal
.....................safety alert symbol
.....................visible radiation
..................... wear respiratory
protection
..................... wear eye
protection
..................... wear hearing
protection
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
Motor
Be sure your power supply agrees with the nameplate
marking. Voltage decrease of more than 10% will cause loss
of power and overheating.
DeWALT
tools are factory tested;
if this tool does not operate, check powersupply.
COMPONENTS (FIG. A)

WARNING: Never modify the power tool or any part
of it. Damage or personal injury couldresult.
Refer to Figure A at the beginning of this manual for a
complete list ofcomponents.
INTENDED USE
D25501, D25601, D25602
Your rotary hammer has been designed for professional
rotary drilling and chippingapplications.
D25820, D25831, D25851
Your chipping hammer has been designed for professional
chipping, chiselling and demolitionapplications.
DO NOT use under wet conditions or in presence of
flammable liquids orgases.
These hammers 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 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.
Fitting the Side Handle (Fig. B)
The side handle
3
clamps to the mounting area
12
of the
gear case and may be rotated 360˚ to permit right- or left-
hand use. The side handle must be tightened sufficiently to
resist the twisting action of the tool if the accessory binds
or stalls. Be sure to grip the side handle at the far end to
control the tool during astall.
To loosen side handle, rotatecounterclockwise.
3
12
Fig. B
Active Vibration Control (Fig. A, F)
D25602, D25831, D25851
For best vibration control, hold the tool with one hand
on the main handle
4
and the other hand on the side
handle
3
. Apply just enough pressure so the damping
device on the main handle is approximately midstroke. The
hammer only needs enough pressure to engage the active
vibraton control. Applying too much pressure will not make
the tool drill or chip faster and active vibration control will
notengage.