Jcb JCB-SDS780 Safety And Operating Manual - 3. Mounting of Bit In
JCB, SO53 3LE
www.JCBDIY.com
Customer Helpline 0333 0143092
Clean and lightly oil the bit before
inserting. Insert the dust-free bit into
the bit holder with a twisting motion
until it latches.
The bit locks itself. Check the
locking by pulling on the tool.
● REMOVING THE DRILL BIT.
Retract back the bit holder locking
sleeve (7) and pull out the bit.
WARNING! Your new Rotary
Hammer Drill generates
powerful forces to get your job done
quickly and effectively. These forces
may cause inferior quality SDS bits
to break and jam in the chuck. We
therefore recommend that only high
quality SDS bits be used with this
tool.
3. MOUNTING OF BIT IN
KEYED CHUCK
WARNING: Do not use
tools without SDS-plus for
hammer drilling or chiseling!
Before mounting the drill bit, attaching
the 13 mm keyed chuck, insert bit
between the chuck jaws as far as it
will go. Ensure drill bit is in the center
of the chuck jaws. Using the chuck
key provided, there are three holes
in which the chuck key should be
inserted. Tighten them equally in turn
at each of the three holes, not just at
one hole. Your drill bit is now locked in
the chuck. The bit can be removed by
reversing the above procedures.