Manual DeWalt DCH334 (page 12 of 40) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

Performing an Application (Fig. A, I)



WARNING: TO REDUCE THE RISK OF PERSONAL

INJURY, ALWAYS ensure workpiece is anchored or

clamped firmly. If drilling thin material, use a wood

“back-up” block to prevent damage to thematerial.



WARNING: Always wait until the motor has come to

a complete standstill before changing the direction

ofrotation.

1. Choose and install the appropriate chuck, adapter, and/

or bit onto to the tool. Refer to Bit and Bit Holder.

2. Using the mode selector dial

6

, selectthe mode

appropriate to desired application. Refer to

OperationModes.

3. Adjust the side handle

3

asnecessary.

4. Select the direction ofrotation using the forward/

reverse button

4

. When changing the position of the

control button, be sure the trigger isreleased.

- To select forward rotation, press the for ward/re verse

control button on the right side of thetool.

- To select reverse, press the forward/reverse control

button on the left side of thetool.

NOTE: The center position of the control button

locks the tool in the off position.

Fig. K

5. Place the bit/chisel on the desired location.

6. Depress the trigger switch

5

. The farther you depress

the trigger switch, the faster the tool will operate. For

maximum tool life, use variable speed only for starting

holes orfasteners.

7. To stop the hammer, release the switch.

Recommendations for Tool Operation

• Large (5/16" to 1/2" [7.9 mm to 12.7 mm]) holes in steel

can be made easier if a pilot hole (5/32" to 3/16" [4 mm

to 4.8 mm]) is drilledfirst.

• When drilling, always apply pressure in a straight line

with the bit, but do not push hard enough to stall the

motor or deflect thebit. A smooth even flow of material

indicates the proper drilling rate.

• If drilling thin material or material that is prone to

splinter, use a wood “back-up” block to prevent damage

to thework piece.



WARNING:

• Do not use this tool to mix or pump easily

combustible or explosive fluids (benzine,

alcohol,etc.).

• Do not mix or stir inflammable liquids

labelledaccordingly.

MAINTENANCE



WARNING: To reduce the risk of serious personal

injury, turn unit off and remove the battery pack

before making any adjustments or removing/

installing attachments or accessories. An

accidental start-up can causeinjury.

Cleaning



WARNING: Blow dirt and dust out of all air vents with

clean, dry air at least once a week. To minimize the risk

of eye injury, always wear ANSI Z87.1 approved eye

protection when performingthis.



WARNING: Never use solvents or other harsh

chemicals for cleaning the non-metallic parts of

the tool. These chemicals may weaken the plastic

materials used in these parts. Use a cloth dampened

only with water and mild soap. Never let any liquid

get inside the tool; never immerse any part of the tool

into aliquid.

Accessories



WARNING: Since accessories, other than those

offered by

DeWALT

, have not been tested with this

product, use of such accessories with this tool could be

hazardous. To reduce the risk of injury, only

DeWALT

recommended accessories should be used with

thisproduct.

Various types of SDS Plus drill bits and chisels are available

as anoption. Accessories and attachments used must be

regularly lubricated around the SDS Plusfitment.

Recommended accessories for use with your tool

are available at extra cost from your local dealer or

authorized service center. If you need assistance in

locating any accessory, please contact

DeWALT

Industrial

Tool Co., 701East Joppa Road, Towson, MD 21286, call

1-800-4-

DeWALT

(1-800-433-9258) or visit our website:

www.dewalt.com.

Repairs

The charger and battery pack are notserviceable.



WARNING: To assure product SAFETY and

RELIABILITY, repairs, maintenance and adjustment

(including brush inspection and replacement) should

be performed by a

DeWALT

factory service center

or a

DeWALT

authorized service center. Always use

identical replacementparts.

Thank you for your purchase. Register your product nowfor:

• WARRANTY SERVICE: Registering your product will

help you obtain more efficient warranty service in case

there is a problem with yourproduct.

• CONFIRMATION OF OWNERSHIP: In case of

an insurance loss, such as fire, flood or theft, your

registration of ownership will serve as your proof

ofpurchase.

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DeWalt DCH334 Manual

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