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OPERATION
Geared Chuck and tighten with the chuck key. Figure 3
illustrates the adapter, Geared Chuck, and various stan-
dard bits.
DRILL OPERATION
Operate the HD08 Hammer Drill as follows:
1. Observe all safety precautions.
2. Install the appropriate adapters and/or bits into the
hammer drill. Refer to the BIT INSTALLATION for
details.
3. Set the hammer drill controls, side handle, and depth
gauge. Refer to the CONTROLS section for details.
IMPORTANT
When operating the hammer drill in hammer mode,
always use drill bits and accessories designed for
impact type applications. DO NOT USE STANDARD
DRILL BITS OR ACCESSORIES. THESE CAN
CRACK OR FRACTURE DURING OPERATION.
4.
Move the hydraulic circuit control valve to the oN
position.
5. Squeeze the trigger to activate the drill.
6. Release the trigger to stop the drill.
MODES OF OPERATION
The hammer drill can operate in either drill only mode
(without percussion) or hammer drill mode (with percus-
sion).
In drill only mode, the hammer drill can be used for pe-
riodic light duty drilling. For extended use or heavy duty
drilling use the Stanley DLO7 Hydraulic Drill.
The following sections provide operational guide lines for
drilling, hammer drilling or chiselling.
DRILLING (NON-PERCUSSION)
Use the Drill Chuck/Screwdriver Bit Adapter and the
Geared Chuck for periodic, light-duty drilling applica-
tions.
With the Geared Chuck mounted on the tool, loosen the
chuck first with the chuck key, and then turn the chuck
sleeve counterclockwise (looking at the chuck end of the
tool) by hand. Loosen until the bit shank fits into the hole
for the shank. Insert the appropriate bit shank into the
chuck and tighten the chuck sleeve clockwise by hand.
Tighten further by applying the chuck key successively
to all three guide holes of the chuck.
12 ► HD08 user manual
The chuck key must not be attached to the tool with a
chain, cord, or similar means.
When drilling into small work pieces, secure the piece
(by clamping in a vise or otherwise securing it to the
work surface) so that the piece is not turned by the drill
bit during drilling.
IMPORTANT
When drilling into a structure that might contain
electrical wiring, be sure to know the location of the
wiring and avoid drilling into it. The housing can
carry electrical current from live electrical wires into
which the drill is accidently drilled resulting in injury
or death.
HAMMER DRILLING (PERCUSSION)
Press the hammer drill bit against the work surface be-
fore squeezing the trigger. Do not operate the drill before
contacting the work surface.
When hammer drilling, do not exert heavy pressure on
the tool. Applying heavy pressure does not increase the
drilling speed. You need only press lightly. When the drill
is withdrawn from the work surface, the percussion ac-
tion of the hammer drill stops.
CHISELLING
Use the Bull-point Chisel Bit for light-duty chiselling
work. Press the hammer drill chisel bit against the work
surface before squeezing the trigger. As with hammer
drilling, do not exert heavy pressure on the tool. Press
lightly.
The rotary motion of the hammer drill does not stop when
chiselling. The bull-point chisel turns during chiselling.
When the chisel is withdrawn from the work surface, the
percussion action of the hammer drill stops.
Bull-point chisels that become blunt can be sharp ened
on a grinding machine.
COLD WEATHER OPERATION
If the drill is to be used during cold weather, preheat
the hydraulic fluid at low engine speed. When using the
normally recommended fluids, fluid tempera ture should
be at or above 50 °F/10 °C (400 SSU/ 82 centistokes)
before use.
Damage to the hydraulic system or drill can result from
use with fluid that is too viscous or too thick.
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