DeWalt DW515K, DW505 instruction manual Chuck, Operation, Drilling

For straight drilling, align selector with drill bit symbol.

For hammering, align selector with the hammer symbol, as shown in the figure.

NOTE: The selector must be in either drill or hammer/drill mode at all times. There are no operable positions between the two.

FIG. 4

Chuck

To insert the bit, open chuck jaws by turning collar with fingers counterclockwise (when viewed from the chuck end) and insert shank of bit about 3/4" (19 mm) into chuck. Tighten chuck collar by hand. Place chuck key in each of the three holes and tighten in clockwise direction. It’s important to tighten chuck with all three holes.

To release the bit, turn collar key counterclockwise in just one hole, then loosen the chuck by hand turning collar counterclockwise (when viewed from the chuck end).

OPERATION

WARNING: To reduce the risk of injury, turn unit off and disconnect tool from power source before installing and removing accessories, before making any adjustments or removing/installing attachments or accessories. An accidental start-up can cause injury.

Drilling

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.

1.Use sharp drill bits only. For WOOD, use twist drill bits, spade bits, power auger bits, or hole saws. For METAL, use steel twist drill bits or hole saws. For MASONRY, such as brick, cement, cinder block, etc., use carbide-tipped bits rated for percussion drilling.

2.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.

3.Hold tool firmly with both hands to control the twisting action of the drill.

4.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

CLICK TRIGGER ON AND OFF IN AN ATTEMPT TO START A STALLED DRILL — THIS CAN DAMAGE THE DRILL.

5.To minimize stalling or breaking through the material, reduce pressure on drill and ease the bit through the last fractional part of the hole.

6.Keep the motor running when pulling the bit back out of a drilled hole. This will help prevent jamming.

7.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.

English