909 CK14DD Instruction Manual page 19

2. Ensure the drill bit is fully inserted, so that the chuck
jaws grip the straight section of the bit.
3. Holding the rear section of the chuck firmly, rotate the
front section of the chuck clock-wise until the jaws tighten
on the drill bit. The front section of the chuck needs to be
tightened firmly to ensure the drill bit is held securely.
4. To remove the drill bit, hold the rear section of the chuck
firmly and rotate sharply the front section of the chuck in
a anti-clockwise direction, sufficiently enough to allow the
drill bit to be removed.
Drilling
Drilling metals
• Always clamp sheet metal.
• Support thin metal with a block of wood to avoid
distorting it.
• Use a punch to mark the centre of the hole.
• Use a suitable lubricant for the material you are
working on,
USE:
Oil
Turpentine or paraffin
Do not lubricate
Drilling plastics and plastic coated chipboard
• Use high speed drill bits
• See drilling wood below
Drilling masonry
• This drill is not designed for drilling masonry.
Purchase or hire a Hammer drill.
Drilling wood
• Clamp a piece of scrap wood to the back of your work to
prevent splintering.
All drilling operations
• Mark off the centre of the hole using a centre punch or nail.
• Don't force the drill, let it work at its own pace
FOR:
Steel
Aluminium
Brass, copper or cast iron
• Keep the drill bit sharp.
• Reduce pressure, as the drill is about to break through
the item being drilled.
Chuck replacement
The chucks of reversible drills are always fixed by a screw
with a left-hand thread. The screw, which is located in the
centre of the chuck, must be removed before the chuck can
be removed. To remove the screw, turn it in a clockwise
direction. The chuck can now be removed by unscrewing it
anti-clockwise. If you have trouble removing the chuck take
the drill to your nearest authorised service centre for chuck
replacement.
CAUTION. Always ensure that the drill is switched off
and the battery pack is removed before making any
adjustments.
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