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Storage Recommendations
1. The best storage place is one that is cool and
dry away from direct sunlight and excess heat
or cold. For optimum battery performance and
life, store battery packs at room temperature
when not in use.
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.
Labels on Charger and Battery Pack
In addition to the pictographs used in this manual,
the labels on the charger and the battery pack show
the following pictographs:
Read instruction manual before use.
See Technical Data for charging time.
Battery charging.
Battery charged.
Battery defective.
Hot/cold pack delay.
Do not probe with conductive objects.
Do not charge damaged battery packs.
Do not expose to water.
Have defective cords replaced
immediately.
Charge only between 4 ˚C and 40 ˚C.
Only for indoor use.
Discard the battery pack with due care
for the environment.
WARNING: Burn hazard. Battery liquid
may be flammable if exposed to spark
or flame.
Transportation
DEWALT batteries comply with all applicable
shipping regulations as prescribed by industry and
legal standards which include UN Recommendations
on the Transport of Dangerous Goods; International
Air Transport Association (IATA) Dangerous Goods
Regulations, International Maritime Dangerous
Goods (IMDG) Regulations, and the European
Agreement Concerning The International Carriage
of Dangerous Goods by Road (ADR). Lithium-ion
cells and batteries have been tested to section 38.3
of the UN Recommendations on the Transport of
Dangerous Goods Manual of Tests and Criteria.
In most instances, shipping a D
EWALT battery pack
will be excepted from being classified as a fully
regulated Class 9 Hazardous material. In general,
the two instances that require shipping Class 9 are:
1. Air shipping more than two DEWALT lithium-ion
battery packs when the package contains only
battery packs (no tools), and
2. Any shipment containing a lithium-ion battery
with an energy rating greater than 100 watt
hours (Wh). All lithium-ion batteries have the
watt hour rating marked on the pack.
Regardless of whether a shipment is considered
excepted or fully regulated, it is the shipper's
responsibility to consult the latest regulations for
packaging, labeling/marking and documentation
requirements.
Transporting batteries can possibly cause fire if the
battery terminals inadvertently come in contact with
conductive materials. When transporting batteries,
make sure that the battery terminals are protected
and well insulated from materials that could contact
them and cause a short circuit.
The information provided in this section of the
manual is provided in good faith and believed to be
accurate at the time the document was created.
However, no warranty, expressed or implied, is
given. It is the buyer’s responsibility to ensure that its
activities comply with the applicable regulations.
Battery Pack
BATTERY TYPE
The DCG412 operates on a 18 V battery pack,
DCB180, DCB181, DCB182, DCB183, DCB184 or
DCB185 battery packs may be used.
Due to the high power draw of this product, it is
recommended that high capacity battery packs are
used where available. Refer to Technical Data for
more information.
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o. Battery release button
p. Fuel gauge button
INTENDED USE
The DCG412 cordless angle grinder has been
designed for professional cutting, light-duty material
removal and wire-brush applications.
DO NOT use grinding wheels other than centre
depressed wheels and flap discs.
DO NOT use under wet conditions or in the
presence of flammable liquids or gases.
This heavy-duty angle grinder is a professional
power tools.
DO NOT let children come into contact with the
tool. Supervision is required when inexperienced
operators use this tool.
• Young children and the infirm. This appliance
is not intended for use by young children or
infirm persons without supervision.
• This product is not intended for use by persons
(including children) suffering from diminished
physical, sensory or mental abilities; lack of
experience, knowledge or skills unless they are
supervised by a person responsible for their
safety. Children should never be left alone with
this product.
Electrical Safety
The electric motor has been designed for one
voltage only. Always check that the battery pack
voltage corresponds to the voltage on the rating
plate. Also make sure that the voltage of your
charger corresponds to that of your mains.
Your D
EWALT charger is double insulated
in accordance with EN 60335; therefore
no earth wire is required.
If the supply cord is damaged, it must be replaced
by a specially prepared cord available through the
D
EWALT service organisation.
Mains Plug Replacement
(U.K. & Ireland Only)
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.
Charge DEWALT battery packs only with
designated D
EWALT chargers. Charging
battery packs other than the designated
DEWALT batteries with a DEWALT
charger may make them burst or lead to
other dangerous situations.
Do not incinerate the battery pack.
Package Contents
The package contains:
1 Angle grinder
1 125 mm Guard (Type 27)
1 Side handle
1 Flange set
1 Two-pin spanner
1 Charger
2 Li-Ion battery packs (L2, M2, P2 models)
1 Instruction manual
NOTE: Battery packs, chargers and kitboxes are
not included with N-models.
• Check for damage to the tool, parts or
accessories which may have occurred during
transport.
• Take the time to thoroughly read and
understand this manual prior to operation.
Description (fi g. 1–3)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. Trigger switch
b. Lock-off button
c. Spindle lock button
d. Spindle
e. Side handle
f. Abrasive wheel
g. Backing flange
h. Threaded clamp nut
i. Guard
j. Battery pack
k. Guard catch
l. Lugs
m. Gear case slots
n. Adjusting screw
12