Maintenance / Service - SKIL MASTERS 1790 Manual Del Usuario

• Activating rotation switch C 6
- press button D to unlock switch C
- turn switch C along the bottom side to position "1"
until it snap-locks
! do not turn switch C along the upper side
! start working only when switch C is locked
• Activating hammer switch E 7
- turn switch E along the upper side to position "1"
! do not turn switch E along the bottom side
• Operating the tool 8
! select operating mode only when tool is switched
off and plug is disconnected
- for chiseling see relevant paragraph
- for impact drilling set switch C in position "1" and
switch E in position "1"
- for normal drilling as well as for screwdriving set
switch C in position "1" and switch E in position "0"
and use adapter J 2
- the hammer mechanism is activated by applying a
slight pressure on the tool when the drill bit is in
contact with the workpiece
- best impact drilling results can be obtained by only a
slight pressure on the tool needed to keep the
automatic clutch engaged; drilling performance will
not improve by applying more pressure on the tool
• Chiseling 9
! select operating mode only when tool is switched
off and plug is disconnected
- fi rst set switch E as well as switch C in position "1"
- rotate chisel into desired position
- then maintain switch E in position "1", but set switch
C in position "0"
• Mounting adapter J 0
! clean and lightly lubricate the SDS+ adapter
before insertion
- pull back locking sleeve F and insert adapter in SDS+
chuck while turning and pushing it until it engages;
the adapter locks in position automatically
- pull adapter to check whether is it locked correctly
• Changing bits !
! clean and lightly lubricate the SDS+ accessory
before insertion
- pull back locking sleeve F and insert accessory in
SDS+ chuck while turning and pushing it until it
engages; the accessory locks in position
automatically
- pull accessory to check that it is locked correctly
- remove accessory by pulling back locking sleeve F
! the SDS+ accessory requires freedom of
movement which causes eccentricity when tool is
off-load; however, the accessory automatically
centres itself during operation without affecting
drilling precision
! only use sharp bits/chisels
! do not use bits/chisels with a damaged shank
• Safety clutch
If the accessory gets jammed, the drive to the spindle is
interrupted (causing a rattling noise)
- immediately switch off tool
- remove the jammed accessory
- switch on tool again
• Adjusting drilling depth @
• AUTO-STOP Carbon brushes
- this tool is equipped with carbon brushes which pop
up automatically when worn, thus preventing the
motor from being damaged
- when the tool stops unexpectedly, send it to your
dealer or the nearest SKIL service-station for having
the brushes replaced
• Holding and guiding the tool #
! while working, always hold the tool at the grey-
coloured grip area(s)
- always use auxiliary handle G 2 (can be adjusted
as illustrated)
- keep the ventilation slots uncovered
- do not apply too much pressure on the tool; let the
tool do the work for you
APPLICATION ADVICE
• When drilling ferrous metals
- pre-drill a smaller hole, when a large hole is required
- lubricate drill bit occasionally with oil
• When turning in a screw at/near the cross cut end or an
edge of wood, pre-drill a hole in order to avoid cracking
of the wood
• Vibration level
The vibration emission level stated at the back of this
instruction manual (indicated by an asterisk) has been
measured in accordance with a standardised test given
in EN 60745; it may be used to compare one tool with
another and as a preliminary assessment of exposure to
vibration when using the tool for the applications
mentioned
- using the tool for different applications, or with
different or poorly maintainted accessories, may
signifi cantly increase the exposure level
- the times when the tool is switched off or when it is
running but not actually doing the job, may
signifi cantly reduce the exposure level
! protect yourself against the effects of vibration by
maintaining the tool and its accessories, keeping
your hands warm, and organizing your work
patterns

MAINTENANCE / SERVICE

• After approximately 30 working hours refi ll grease
storage H with 30 grams of grease $
• Always keep tool and cord clean (especially the
ventilation slots)
! disconnect the plug before cleaning
8