DeWalt DCH072, Original Instructions Manual

7

English

Chargers

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 chargers require no adjustment and are designed to be 

as easy as possible to operate.

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.

i

Your 

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 charger is double insulated in 

accordance with EN60335; therefore no earth wire 
is required.

If the supply cord is damaged, it must be replaced only by 

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 or an authorised 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.

Follow the fitting instructions supplied with good quality plugs. 
Recommended fuse: 3 A.

Using an Extension Cable

An extension cord should not be used unless absolutely 
necessary. Use an approved extension cable suitable for 
the power input of your charger (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.

Important Safety Instructions for All 
Battery Chargers

SAVE THESE INSTRUCTIONS:

 This manual contains important 

safety and operating instructions for compatible battery 
chargers (refer to 

Technical Data

).

•  Before using charger, read all instructions and cautionary 

markings on charger, battery pack, and product using 
battery pack.

WARNING: 

Shock hazard. Do not allow any liquid to get 

inside charger. Electric shock may result.

WARNING:

 We recommend the use of a residual current 

device with a residual current rating of 30mA or less.

CAUTION:

 Burn hazard. To reduce the risk of injury, 

charge only  

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 rechargeable batteries. Other 

•  Risk of squeezing fingers when changing the accessory.
•  Health hazards caused by breathing dust developed when 

working in concrete and/or masonry.

•  Risk of personal injury due to flying particles.
•  Risk of burns due to accessories becoming hot 

during operation.

•  Risk of personal injury due to prolonged use.

Residual Risks

The following risks are inherent to the use of rotary hammers:

•  Injuries caused by touching the rotating parts or hot parts of 

the tool.

In spite of the application of the relevant safety regulations 
and the implementation of safety devices, certain residual risks 
cannot be avoided. These are:

•  Impairment of hearing.

• 

Use auxiliary handle(s), if supplied with the tool. 

Loss of 

control can cause personal injury.

• 

Hold the power tool by insulated gripping surfaces, 
when performing an operation where the cutting 
accessory may contact hidden wiring. 

Cutting accessory 

contacting a "live" wire may make exposed metal parts of the 
power tool "live" and could give the operator an electric shock.

• 

Be certain that the material being drilled does not 
conceal electric or gas service and that their locations 
have been verified with the utility companies.

• 

Use clamps or other practical way to secure and support 
the workpiece to a stable platform.

 Holding the work by 

hand or against your body is unstable and may lead to loss 
of control.

• 

Wear safety goggles or other eye protection.

 Hammering 

operations cause chips to fly. Flying particles can cause 
permanent eye damage. Wear a dust mask or respirator 
for applications that generate dust. Ear protection may be 
required for most applications.

• 

Keep a firm grip on the tool at all times. Do not attempt 
to operate this tool without holding it with both hands. 

It is recommended that the side handle be used at all times. 
Operating this tool with one hand will result in loss of control. 
Breaking through or encountering hard materials such as 
re‑bar may be hazardous as well. Tighten the side handle 
securely before use.

• 

Do not operate this tool for long periods of time.

Vibration caused by hammer action may be harmful to your 
hands and arms. Use gloves to provide extra cushion and limit 
exposure by taking frequent rest periods.

• 

Do not recondition bits yourself. 

Chisel reconditioning 

should be done by an authorized specialist. Improperly 
reconditioned chisels could cause injury.

• 

Wear gloves when operating tool or changing bits.

Accessible metal parts on the tool and bits may get extremely 
hot during operation. Small bits of broken material may 
damage bare hands.

• 

Never lay the tool down until the bit has come to a 
complete stop.

 Moving bits could cause injury.

• 

Do not strike jammed bits with a hammer to dislodge 
them. 

Fragments of metal or material chips could dislodge 

and cause injury.

• 

Slightly worn chisels can be resharpened by grinding.

• 

Do not overheat the bit (discoloration) while grinding 
a new edge. 

Badly worn chisels require reforging. Do not 

reharden and temper the chisel.