DeWalt DCH416, Instruction Manual

5

English

Additional Safety Instructions for 

Rotary Hammers

• 

Wear ear protectors.

 Exposure to noise can cause 

hearing loss.

• 

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

Loss 

of control can cause personal injury.

• 

Hold 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 

d ) 

Under abusive conditions, liquid may be ejected 

from the battery; avoid contact. If contact 

accidentally occurs, flush with water. If liquid 

contacts eyes, additionally seek medical help.

Liquid ejected from the battery may cause irritation 

or burns.

e ) 

Do not use a battery pack or tool that is damaged 

or modified.

 Damaged or modified batteries may 

exhibit unpredictable behavior resulting in fire, 

explosion or risk of injury.

f ) 

Do not expose a battery pack or tool to 

fire or excessive temperature.

 Exposure to 

fire or temperature above 265 °F (130 °C) may 

cause explosion.

g ) 

Follow all charging instructions and do not 

charge the battery pack or tool outside the 

temperature range specified in the instructions.

Charging improperly or at temperatures outside the 

specified range may damage the battery and increase 

the risk of fire. 

6) Service

a ) 

Have your power tool serviced by a qualified 

repair person using only identical replacement 

parts.

This will ensure that the safety of the power tool 

is maintained.

b ) 

Never service damaged battery packs.

 Service 

of battery packs should only be performed by the 
manufacturer or authorized service providers.

h ) 

Do not let familiarity gained from frequent use of 

tools allow you to become complacent and ignore 

tool safety principles.

 A careless action can cause 

severe injury within a fraction of a second.

4) Power Tool Use and Care

a ) 

Do not force the power tool. Use the correct power 

tool for your application. 

The correct power tool 

will do the job better and safer at the rate for which it 

was designed.

b ) 

Do not use the power tool if the switch does not 

turn it on and off. 

Any power tool that cannot be 

controlled with the switch is dangerous and must 

be repaired.

c ) 

Disconnect the plug from the power source and/

or remove the battery pack, if detachable, from 

the power tool before making any adjustments, 

changing accessories, or storing power tools. 

Such 

preventive safety measures reduce the risk of starting 

the power tool accidentally.

d ) 

Store idle power tools out of the reach of children 

and do not allow persons unfamiliar with the 

power tool or these instructions to operate the 

power tool. 

Power tools are dangerous in the hands of 

untrained users.

e ) 

Maintain power tools and accessories. Check 

for misalignment or binding of moving parts, 

breakage of parts and any other condition 

that may affect the power tool’s operation. If 

damaged, have the power tool repaired before 

use. 

Many accidents are caused by poorly maintained 

power tools.

f ) 

Keep cutting tools sharp and clean. 

Properly 

maintained cutting tools with sharp cutting edges are 

less likely to bind and are easier to control.

g ) 

Use the power tool, accessories and tool bits etc. 

in accordance with these instructions, taking 

into account the working conditions and the 

work to be performed. 

Use of the power tool for 

operations different from those intended could result in 

a hazardous situation.

h ) 

Keep handles and grasping surfaces dry, clean 

and free from oil and grease.

 Slippery handles and 

grasping surfaces do not allow for safe handling and 

control of the tool in unexpected situations.

5) Battery Tool Use and Care

a ) 

Recharge only with the charger specified by the 

manufacturer.

 A charger that is suitable for one type 

of battery pack may create a risk of fire when used with 

another battery pack.

b ) 

Use power tools only with specifically designated 

battery packs.

 Use of any other battery packs may 

create a risk of injury and fire.

c ) 

When battery pack is not in use, keep it away 

from other metal objects, like paper clips, coins, 

keys, nails, screws or other small metal objects, 

that can make a connection from one terminal to 

another.

 Shorting the battery terminals together may 

cause burns or a fire.