Black & Decker Thunder Volt 1801 - Manual (Page 6)

To operate the tool as a hammer drill,
rotate the selector knob so that the
pictured hammer is toward the front of
the tool, as shown in the figure.
SELECTOR
KNOB
FIG.
Operation
DRILLING
1 .
2 .
3.
4.
5.
6 .
Always unplug the Drill when
attaching or changing bits or
accessories.
Use sharp drill bits only. For
WOOD, use twist drill bits, spade
bits, power auger bits, or hole saws.
For METAL, use high speed steel
twist drill bits or hole saws. For
MASONRY, such as brick, cement,
cinder block, etc., use carbide-
tipped bits.
Be sure the material to be drilled is
anchored or clamped firmly. If
drilling thin material, use a wood
“back-up” block to prevent damage
to the material.
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.
Flold drill firmly to control the
twisting action of the drill.
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 OFF
AND ON IN AN ATTEMPT TO
START A STALLED DRILL —
THIS CAN DAMAGE THE DRILL.
7. To minimize stalling or breaking
through the material, reduce
pressure on drill and ease the bit
through the last fractional part of the
hole.
8. Keep the motor running when
pulling the bit back out of a drilled
hole. This will help prevent jamming.
9. 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.
Chuck
Open chuck jaws by turning collar
with fingers and insert shank of bit about
3/4" 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 ail three holes. To release bit, turn
chuck key counter clockwise in just one
hole, then loosen the chuck by hand.
Drilling In Metal
Use a cutting lubricant when drilling
metals. The exceptions are cast iron and
brass which should be drilled dry.
The cutting lubricants that work best are
sulphurized cutting oil or lard oil; bacon-
grease will also serve the purpose.
Drilling In Wood
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 Power Drill Wood Bits. Work
that is apt to splinter should be backed up
with a block of wood.