DeWalt DCH213 Manual de Instruções descarregar pdf (Página 12)

a cutting lubricant when drilling metals. The exceptions are cast iron and brass

which should be drilled dry. For MASONRY, such as brick, cement, cinder block,

etc., use carbide-tipped bits rated for percussion drilling.

3. Always apply pressure in a straight line with the bit. Use enough pressure to keep

drill biting, but do not push hard enough to stall the motor or deflect the bit.

4. Hold tool firmly with both hands to control the twisting action of the drill. If model

is not equipped with side handle, grip drill with one hand on the handle and one

hand on the battery pack.

WARNING: Drill may stall if overloaded causing a sudden twist. Always expect

the stall. Grip the drill firmly to control the twisting action and avoid injury.

5. IF DRILL STALLS, it is usually because it is being overloaded or improperly used.

RELEASE TRIGGER IMMEDIATELY, remove drill bit from work, and determine

cause of stalling. DO NOT depress TRIGGER ON AND OFF IN AN ATTEMPT TO

START A STALLED DRILL — THIS CAN DAMAGE THE DRILL.

6. To minimize stalling or breaking through the material, reduce pressure on drill and

ease the bit through the last fractional part of the hole.

7. Keep the motor running when pulling the bit back out of a drilled hole. This will

help prevent jamming.

8. With variable speed drills there is no need to center punch the point to be drilled.

Use a slow speed to start the hole and accelerate by squeezing the trigger harder

when the hole is deep enough to drill without the bit skipping out.

DRILLING IN METAL

An SDS Plus

to round shank adaptor chuck is required for the DCH213-XE. Ensure

that tool is in drill-only mode. Start drilling with slow speed and increase to full power

while applying firm pressure on the tool. A smooth even flow of metal chips indicates

the proper drilling rate. Use a cutting lubricant when drilling metals. The exceptions

are cast iron and brass which should be drilled dry.

NOTE: Large (7.9 mm to 12.7 mm [5/16" to 1/2"]) holes in steel can be made easier

if a pilot hole (4 mm to 4.8 mm [5/32" to 3/16"]) is drilled first.

DRILLING IN WOOD

An SDS Plus

to round shank adaptor chuck is required for the DCH213-XE. Ensure

that tool is in drill-only mode. Start drilling with slow speed and increase to full power

while applying firm pressure on the tool. Holes in wood can be made with the same

twist drills used for metal. These bits may overheat unless pulled out frequently to

clear chips from the flutes. For larger holes, use spade bits, power auger bits, or hole

saws. Work that is apt to splinter should be backed up with a block of wood.

DRILLING IN MASONRY

When drilling in masonry, use carbide-tipped bits rated for percussion drilling and be

certain that the bits are sharp. Use a constant and firm force on the tool to drill most

effectively. A smooth, even flow of dust indicates the proper drilling rate.

HAMMERDRILL OPERATION

1. When drilling, use just enough force on the hammer to keep it from bouncing

excessively or “rising” off the bit. Too much force will cause slower drilling

speeds, overheating, and a lower drilling rate.

2. Drill straight, keeping the bit at a right angle to the work. Do not exert side

pressure on the bit when drilling as this will cause clogging of the bit flutes and a

slower drilling speed.

3. When drilling deep holes, if the hammer speed starts to drop off, pull the bit

partially out of the hole with the tool still running to help clear debris from the

hole.

4. For masonry, use carbide-tipped bits or masonry bits. A smooth even flow of

dust indicates the proper drilling rate.

Chipping and Chiselling (Fig. 2)

1. Set the mode selector switch (D) to the chipping symbol (K).

2. Insert the appropriate chisel and rotate it by hand to lock it into one of

51 positions.

3. Adjust the side handle (A) as required.

4. Switch on the tool and start working.

5. Always switch off the tool when work is finished and before unplugging.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury, place the forward/

reverse button in the lock-off position or turn tool off and disconnect battery pack

before making any adjustments or removing/installing attachments or accessories.

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DeWalt DCH213 Manual de Instruções Página 12

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