Protool DRP13-2EQ Bedienungsanleitung Seite 11

After long periods at low operating speed, run the drill
at high speed and without load for approx. 3 minutes,
in order to cool the machine down.
Gear selection (Fig.)
Two speed ranges can be pre-selected with the gear
selector switch (11):
Gear I: Lower speed range
Gear II: Higher speed range
The final speed can be electronically pre-selected
within these speed ranges.
The gears can be switched when the machine is running
down or at a standstill, however not under full load.
After switching gears, run the machine up slowly.
Changing rotational direction
Set the rotational direction switch (10) to the right (left-
hand rotation) or to the left (right-hand rotation). Left-
hand rotation for example enables tapping and
unscrewing/loosening of screws or nuts.
The rotational direction switch is locked when the
ON/OFF switch (8) is activated.
Change the rotational direction only when the
machine is not running.
Normal and percussion drilling
(PDP 20-2EQ/PDP 20-2EAQ)
Selector switch (4) can be felt snapping into place, and
can be actuated while the machine is operating.
Drilling
Push selector switch (4) to the left.
Percussion drilling
Push selector switch (4) to the right.
Tungsten carbide drill bits are required for drilling con-
crete, stone and masonry. The rotational direction
switch (10) must be in the clockwise position.
Replacing the key-type drill chuck (Fig.)
The drill chuck is secured with the securing screw (16)
against loosening from the drill spindle. Open the drill
chuck fully and completely unscrew the securing screw
(Caution: leifthand thread!).
Set an open-end spanner (size 15 mm) onto the spanner
surface (2) of the drill spindle and hold tight. Insert the
chuck key (17) into one of the three holes of the drill
chuck. Use the chuck key as a lever to unscrew the drill
chuck from the spindle, by rotating in counterclock-
wise direction against the open-end spanner. A snug
drill chuck can be loosened by applying a light hammer
blow onto the drill chuck key (17).
Replacing the keyless chuck (Fig.)
The drill chuck is secured with the securing screw (16)
against loosening from the drill spindle. Open the drill
chuck fully and completely unscrew the securing screw
(Caution: lefthand thread!).
Clamp an Allen key (19) into the drill chuck. Set an
open-end spanner (size 15 mm) onto the spanner sur-
face (2) of the drill spindle and hold tight. Loosen the
drill chuck with a light blow on the Allen key.
Screw on the drill chuck in reverse order.
Before tightening the securing screw (16)
respectively, the quick clamping drill chuck
must be tightened securely (tightening torque
approx. 50 Nm).
Screwdriving (see Fig.)
The drill spindle (23) is equipped with an internal hex-
agon for use with screwdriver bits (21). After removing
the drill chuck, a screwdriver bit can be inserted
directly into the internal hexagon of the drill spindle.
Slide the safety cover (22) onto the spindle thread first,
as it will retain the screwdriver bit.
Operational Tips
Sharpening drill bits
Only HSS drill bits in perfect condition (HSS = high
speed steel) should be used for drilling metal.
Bench Stands
For jobs requiring high precision, the use of a bench
stand (accessories) is recommended.
Machine vice
Clamp work pieces tight for drilling, i.e.., using the
machine vice (see Accessories). This keeps the work
piece from turning and thus prevents resulting acci-
dents.
Drilling tiles
Set selector switch (4) to the drill symbol. Wait until
the tile has been completely penetrated before switch-
ing over to the hammer symbol and continuing with
percussion drilling.
Tapping
Clamp the tap drill carefully and very tight to prevent
slipping.
Storage
The unit should be stored in a dry place where it is pro-
tected against freezing.
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