HART HPDD50 - Maintenance and Care

7 – English
OPERATION
MAINTENANCE
Depresstheswitchtriggertostartthedrill.
Movethebitintotheworkpiece,applyingonlyenough
pressuretokeepthebitcuttingordrivingthescrew.Do
notforcethedrillorapplysidepressuretoelongatea
hole.Letthetooldothework.
WARNING:
Whendrilling,bepreparedforbindingatbitbreakthrough.
Whenthesesituationsoccur,drillhasatendencytograb
andkickoppositetothedirectionofrotationandcould
cause loss of control when breaking through material. If
notprepared,thislossofcontrolcanresultinpossible
seriousinjury.
Whendrillinghard,smoothsurfaces,useacenterpunch
tomarkthedesiredholelocation.Thiswillpreventthebit
fromslippingoff-centerastheholeisstarted.
Ifthebitjamsintheworkpieceorifthedrillstalls,stop
thetoolimmediately.Removethebitfromtheworkpiece
anddeterminethereasonforjamming.
NOTE: This drill has an electric brake. When the switch
triggerisreleased,thechuckstopsturning.Whenthebrake
isfunctioningproperly, sparkswillbevisiblethroughthe
ventslotsonthehousing.Thisisnormalandistheaction
of the brake.
NOTE:
 If operation creates considerable dust, frequent
vacuumingoftheworkareaisrecommended.
WOOD AND METAL DRILLING
Formaximumperformance,usehighspeedsteelbitsfor
woodormetaldrilling.Selectdrillingmode.Begindrilling
ataverylowspeedtopreventthebitfromslippingoffthe
startingpoint.
Wood Drilling
Increasethespeedasthedrillbitbitesintothematerial.
Whendrillingthroughholes,placeablockofwoodbehind
theworkpiecetopreventraggedorsplinterededgeson
thebacksideofthehole.
Metal and Steel Drilling
Usealightoilonthedrillbittokeepitfromoverheating.
Theoilwill prolong the lifeof the bit and increasethe
drillingaction.
Maintain a speed and pressure which allows cutting
withoutoverheatingthebit.Applyingtoomuchpressure
will:
 •Overheatthedrill;
 •Wearthebearings;
 •Bendorburnbits;and
 •Produceoff-centerorirregular-shapedholes.
Whendrillinglargeholesinmetal,startwithasmallbit,
then finish with a larger bit.
WARNING:
When servicing, useonlyidenticalreplacement parts.
Useofanyotherpart couldcreateahazardor cause
productdamage.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plasticsaresusceptibletodamagefromvarioustypesof
commercialsolventsandcanbedamagedbytheiruse.Use
cleanclothstoremovedirt,dust,oil,grease,etc.
NOTE: ILLUSTRATIONS START ON PAGE 9
AFTER FRENCH AND SPANISH LANGUAGE SECTIONS.