DeWalt DCH213 Instruction Manual download pdf (Page 14)

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. 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 (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.

DRILLING IN WOOD

An SDS Plus® to round shank adaptor chuck is required for the

DCH213. 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

i_WARNING: To reduce the risk of serious personal injury,

turn tool off and disconnect tool from power source before

making any adjustments or removing/installing attachments or

accessories. An accidental start-up can cause injury.

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DeWalt DCH213 Instruction Manual Page 14

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