GRAPHITE 58G548 Betriebsanleitung Seite 13

● Pos 0 = position for setting chisel in desired position (chisel symbol)
● Pos 1 = regular drilling/screwing (symbol of a drill)
● Pos 2 = impact drilling (symbol of a drill and a hammer)
● Pos 3 = chiselling (symbol of a chisel and a hammer)
Do not try to change position of the working mode switch when motor of the rotary hammer drill is operating. Such
action may cause serious damage of the rotary hammer drill or injury of the user.
Impact drilling and chiselling requires to slightly press the rotary hammer drill. Too great pressure would cause unneces-
sary, excessive load of the motor. Check technical condition of the working tools regularly. Sharpen or replace working
tools when necessary.
LEFT – RIGHT DIRECTION OF ROTATION
Choose direction of rotary hammer drill spindle rotation with the direction selector switch (5).
Clockwise rotation – set the direction selector switch (5) to the extreme left position (fig. B).
Counter-clockwise rotation – set the direction selector switch (5) to the extreme right position.
* The possibility is reserved that in certain cases position of the direction selector switch relating to rotation direction of spindle may be
different than specified. Please refer to graphic signs placed on the switch or tool body.
Do not change direction of rotation when the spindle of the rotary hammer drill is rotating. Check if the position of the
selector switch is correct before starting the tool. Do not use left direction of rotation when impact function is on.
VOLTAGE INDICATOR LAMP
When the rotary hammer drill is connected to power supply socket, the voltage indicator lamp lights up.
DRILLING HOLES
● When drilling a hole with large diameter, it is recommended to drill smaller hole and then ream it to desired diameter. It
prevents overloading the rotary hammer drill.
● When drilling deep holes drill gradually to smaller depths, then slide the drill out of the hole to remove chips and dust.
● If a drill jam occurs during drilling, the overload clutch will activate. Turn off the rotary hammer drill immediately to
prevent its damage. Remove jammed drill from the hole.
● Keep the rotary hammer drill in the axis of the hole. Keeping the drill perpendicular to the surface of the processed
material ensures the most effective operation. If a drill is not kept perpendicular to the surface during operation, it may
get jammed or broken in the hole, and even injure the user.
Long lasting drilling at low rotational speed of the spindle may cause motor overheating. Provide periodic breaks
during operation or let the tool operate at maximum speed with no load for approximately 3 minutes. Do not cover
holes for motor ventilation in the rotary hammer drill body.
DRILLING WITHOUT IMPACT
Materials like steel, wood and plastics can be drilled with rotary hammer drill with the use of three jaw drill chuck with in-
termediate adapter. Mount together three jaw drill chuck and intermediate adapter and then place it in the rotary hammer
drill chuck (proceed like with SDS Plus drills) (fig. D).
Do not use three jaw drill chuck when the rotary hammer drill is set to impact drilling. This drill chuck is designed
for regular drilling only (in wood or steel). Use drills of high speed steel or carbon steels (only for wood and wood-
like materials).
IMPACT DRILLING
● Set operation mode switch (4) in position for impact drilling.
● Insert appropriate SDS Plus drill into the chuck (
● To get the best results use high quality drills with solid carbide inserts.
● Press the drill against processed material.
● Switch on the rotary hammer drill by pressing the switch button (
ly and the working tool should not bounce on the processed material surface.
● Increase speed when necessary by pressing harder on the switch button (
1).
6), the power tool mechanism should operate smooth-
6).
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