Operation Manual

11
Bylooseningthewingbolt(13)thepositionof
theauxiliaryhandlecanbeadjustedinlength
direction.Alwayssetthelengthoftheauxiliary
handletothemaximum,ifpossible.
Applythepressurerequiredforwork
againstthehandle(7)onlyandnotagainst
theauxiliaryhandle(14).
Clamping a Drill
Ring gear chuck
Inserttoolandtightenequallyinall3holeswith
chuckkey.
Keyless chuck
Griprearcollarofkeylesschuck(24)androtate
frontcollaruntilchuckisopensufcientlyfortool
tobeinserted.
Griprearcollarandmanuallyrotatefrontcollar
untiltight.Anaudible“click”indicatesthatthe
chuckhasautomaticallylocked.
Switching on and off
Presstheon/offswitch(5)toswitchonthe
machine.Releaseagaintoswitchoff.
Continuous use
Switchingon:PressON‑OFFswitch(5)and
retainwithlockingbutton(6).
Switchingoff:PressandreleaseON‑OFFswitch
(5).
RPM Control
LightpressureontheON‑OFFswitch(5)results
inlowrotationalspeed,thusallowingdrillingto
begininasmooth,controlledmanner.
Furtherpressureontheswitchresultsinan
increaseinspeed.
RPM Preselection
Thedesiredrotationalspeedcanbepreselected
withthethumbwheel(8)(alsopossible
duringoperation).Therotationalspeedtobe
useddependsuponthematerialandcanbe
determinedinactualpractice.
Forhigherloadingofthemachine,alwayssetthe
control(8)tothemaximumspeed.
Afterlongperiodsatlowoperatingspeed,run
thedrillathighspeedandwithoutloadfor
approx.3minutes.
Speed selection
Tworpmrangescanbepreselectedwiththe
speedselectorswitch(11):
SpeedI:Lowerrpmrange
SpeedII:Higherrpmrange
Thespeedcanbeswitchedduringdrilloperation.
However,thisshouldnotbedonewhileoperating
atfullload.
Therotationspeedcanbeelectronicallyadjusted
withintheseranges.
Percussion drilling
Toswitchontheimpactmechanism,pressthe
switch(12)belowthespindlecollar(2).
Toswitchoff,pullouttheswitch(12).
Tungstencarbidedrillbitsarerequiredfordrilling
concrete,stoneandmasonry.
Changing rotational direction
Settherotationaldirectionswitch(4)tothe
right(lefthandrotation)ortotheleft(right‑hand
rotation).Thereversingoranticlockwise
operationenablesapplicationfortaskssuchas
looseningofscrews.
Rotationaldirectionselector(5)islockedwhen
ON‑OFFswitchisactivated.
Change rotational direction only when
machine is not running.
Changing the ring gear chuck (illustr.)
Useanopen‑endspanner(22‑SW22)on
spannersurface(21)toholdspindle.Placethe
chuckkey(19)inoneofthe3boresandloosen
thechuckbyturningittotheleftusingthekeyas
alever.Ifthechuckisfrozeninplace,atapon
thechuckkey(19)shouldloosenit.
Changing the keyless chuck (illustr.)
ClampanAllenkey(23)inthedrillchuck.Hold
thedrillspindleonthespannersurfaceswithan
open‑endedspanner(19‑SW22).Loosenthe
drillchuckwithalightblowontheAllenkey.
Thechuckissecuredagainstbeingloosened
fromthespindlewithsecuringscrew(20).To
removethedrillchuck,thisscrewmustbe
completelyscrewedout(left‑handthreads).