Drill Operation - Black & Decker KTC12 User Manual

4. To remove the bit, proceed in reverse order.
SELECTING THE OPERATING MODE OR ADJUSTING
THE TORQUE (FIG. 5)
The collar of this tool has 15 positions for the adjustment of
the torque to suit the size of the screw and the workpiece
material. For torque adjustment, refer to
Screwdriving.Select the drilling mode or torque by aligning
the symbol or number on the collar (e) with the indicator (q)
on the housing.
FORWARD/REVERSE SLIDER (FIG. 6)
To select forward or reverse rotation, use the forward/
reverse slider (b) as shown (see arrows on tool).
WARNING: To reduce the risk of personal injury,
always wait until the motor has come to a complete
standstill before changing the direction of rotation.
WARNING: To reduce the risk of personal injury,
always wait until the motor has come to a complete
standstill before changing the direction of rotation.
TWO-GEAR SELECTOR (FIG. 7)
Your tool is fitted with a two-gear selector (f) to vary the
speed/torque ratio.
1. low speed/high torque (drilling large holes, driving
2. screws) high speed/low torque (drilling smaller holes)
For speed rates, refer to the technical data.
WARNING: To reduce the risk of personal injury:
Always push the two gear selector completely forward
•
or backward.
Do not change gears at full speed or during use.
•
Removing and Fitting the Chuck(fi g. 8, 9)
1. Open the chuck jaws as far as possible.
2. Insert a screwdriver into the chuck and remove the
chuck retaining screw by turning clockwise as shown
in figure 8.
3. Tighten an hex key into the chuck and strike it with a
hammer as shown in figure 9. This will loosen the
chuck so that it can be unscrewed by hand.
4. To refit the chuck, proceed in reverse order.
OPERATION
Instructions for Use
WARNING: To reduce the risk of personal injury:
Always observe the safety instructions and applicable
•
regulations.
Be aware of the location of pipework and wiring.
•
Apply only a gentle pressure to the tool. Excessive
•
force does not speed up drilling but decreases tool
To minimize break-through, progressively reduce the
•
drill point pressure towards the end of the operation.
• Keep the motor running when pulling the bit back out
of a drilled hole. This will help prevent jamming.
PRIOR TO OPERATION:
1. Make sure your battery pack is (fully) charged.
2. Insert the appropriate bit.
3. Mark the spot where the hole is to be drilled.
4. Select forward or reverse rotation.
SWITCHING ON AND OFF (FIG. 1, 6)
1. To run the tool, press the variable speed switch (a).
The pressure exerted on the variable speed switch
determines the tool speed.
2. To stop the tool, release the switch.
3. To lock the tool in the off position, move the
forward/reverse slider (b) to the central position.
WARNING: To reduce the risk of personal injury the
drill is equipped with a brake to stop the tool as soon as the
variable speed switch is fully released.

Drill Operation

1. Select the desired speed/torque range using the gear
shifter to match the speed and torque to the planned
operation.
2. For WOOD, use twist bits, spade bits, power auger bits
or hole saws. For METAL, use high-speed steel twist
drill bits or hole saws. Use a cutting lubricant when
drilling metals. The exceptions are cast iron and brass
which should be drilled dry.
3. Always apply pressure in a straight line with the bit. Use
enough pressure to keep the drill bit 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.
5. IF DRILL STALLS, it is usually because it is being
overloaded. 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.
6. Keep the motor running when pulling the bit back out
of a drilled hole. This will help prevent jamming.
SCREWDRIVING (FIG. 1)
1. Select forward or reverse rotation using the slider (b).
Match the speed and torque to the planned operation.
Insert the desired fastener accessory into the chuck as
you would any drill bit.
2. Set the collar (d) to position 1 and begin screwdriving
(low torque). Make a few practice runs in scrap or
unseen areas to determine the proper position of the
clutch collar.
ENGLISH
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