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battery pack in a warm environment such as in a metal
shed or an uninsulated trailer.
3. If the battery pack does not charge properly:
a. Check operation of receptacle by plugging in a lamp
or other appliance;
b. Check to see if receptacle is connected to a light
switch which turns power off when you turn out the
lights;
c. Move the charger and battery pack to a location
where the surrounding air temperature is
approximately 65 °F – 75 °F (18 ° – 24 °C);
d. If charging problems persist, take the tool, battery
pack and charger to your local service center.
4. The battery pack should be recharged when it fails to
produce sufficient power on jobs which were easily
done previously. DO NOT CONTINUE to use under these
conditions. Follow the charging procedure. You may
also charge a partially used pack whenever you desire
with no adverse effect on the battery pack.
5. Foreign materials of a conductive nature such as, but
not limited to, grinding dust, metal chips, steel wool,
aluminum foil, or any buildup of metallic particles
should be kept away from charger cavities. Always
unplug the charger from the power supply when there
is no battery pack in the cavity. Unplug the charger
before attempting to clean.
6. Do not freeze or immerse the charger in water or any
other liquid.
Storage Recommendations
1. The best storage place is one that is cool and dry, away
from direct sunlight and excess heat or cold.
2. For long storage, it is recommended to store a fully
charged battery pack in a cool dry place out of the
charger for optimal results.
nOTE: Battery packs should not be stored completely
depleted of charge. The battery pack will need to be
recharged before use.
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
sPECiFiCATiOns
Rated Size
Tool Holder
Voltage (DC)
Impact Energy in Joules (EPTA)
No-Load RPM
No-Load BPM
Optimum Drilling Range
Max. Diameter Core
Rotation Control
8
DCh733
DCh773
1-7/8" (48 mm)
2" (52 mm)
SDS MAX
SDS MAX
60 V
60 V
13.3 J
19.4 J
177–355
145–290
1350–2705
1105–2210
3/4"–1-3/4"
7/8"–1-7/8"
(19 mm–45 mm)
(22 mm–48 mm)
5" (125 mm)
6" (150 mm)
®
®
E-Clutch
E-Clutch
sPECiFiCATiOns
Weight
Length
Width
Height
Vibration Control
Chipping
Variable Speed Dial
Variable Speed Dial Positions
Noise Values [dB(A)]
L
(Emission Sound Pressure
pA
Level)
L
(Sound Power Level)
WA
K (Uncertainty of Given Sound
Level)
Vibration Values (m/s
2
)
Drilling into Concrete (Value
a
)
h,HD
Uncertainty K
Chipping/Chiselling (Value
a
)
h,Cheq
Uncertainty K
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
Your heavy-duty cordless rotary hammer is designed for
professional concrete drilling and chiseling applications.
DO nOT use under wet conditions or in presence of
flammable liquids or gases.
Your heavy-duty cordless rotary hammer is a professional
power tool.
DO nOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
this tool.
Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch
the tool off, release the trigger switch. Your tool is equipped
with a brake. The chuck will stop as soon as the trigger
switch is fully released.
Variable speed Trigger switch
The variable speed trigger switch enables you to select
the best speed for a particular application. The farther you
squeeze the trigger switch, the faster the tool will operate.
For maximum tool life, use variable speed only for starting
holes or fasteners.
DCh733
DCh773
19 lbs (8.6 kg)
21 lbs (9.5 kg)
23.5" (59.7 cm)
25.4" (64.5 cm)
4.5" (11.3 cm)
4.5" (11.3 cm)
11.2" (28.4 cm)
11.2" (28.4 cm)
®
®
SHOCKS
SHOCKS
Yes
Yes
Yes
Yes
7
7
97
96
108
107
3
3
9.0
10.1
1.5
1.5
8.8
9.4
1.5
1.5
1
. To turn
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