English
14
Simple and Percussion Drilling
For simple drilling or screwing swivel the operating mode
switch (7) towards the symbol
.
For percussion drilling swivel the operating mode switch (7) to-
wards the symbol
.
Change the operating modes preferably in the OFF state. Swivel
the switch simply to the requested position.
Device gearbox will be adjusted to the chosen position after the
switch (5) is depressed, i.e. after the device is started.
Attention:
When drilling with percussion, never change the rota-
tions to the left, otherwise the drill will be damaged. Revolutions
to the left may be chosen only if the drill is jammed and you want
to facilitate its taking it out of the hole. When drilling with percu-
ssion, use only and exclusively the recommended drills with the
SDS-plus shank. You cannot use directly the percussion drills with
the cylindrical shank intended for standard chucks (quick-acting or
toothed chucks with a key) with this electro-pneumatic hammer. If
you want to use the diamond-point bit, switch the percussion off.
Chiselling
For chiselling swivel the operating mode switch (7) towards the
symbol
.
If you want to set the chisel to the position suitable for work, swivel
the operating mode switch (7) towards the symbol and then ro-
tate the chisel in the requested direction.
As soon as the requested chisel position is reached, swivel the ope-
rating mode switch (7) back towards the symbol
.
The chisel will be clamped automatically when the radial pressure
is applied to it during the work (chiselling).
Changing Direction of Rotation
Use the rotation direction switch (8) only if the drilling ham-
mer is at rest.
Hold the rotation direction switch (8) from both sides.
Right rotation: Switch the rotation direction switch (8) to
„R“
.
Left rotation:
Switch the rotation direction switch (8) to
„L“
.
Important! Rotate the rotation direction switch (8) always as far as
the stop on the motor bonnet until a light click is heard.
If the rotation direction switch is in the position between
„R“
and
„L“
, the drilling hammer cannot be started.
Tool Clamping and Removal
No key/wrench is needed for clamping the drilling and chiselling
tools in the clamping head (1).
Tool Clamping
Prior to commencing any intervention into the device, at first dis-
connect the power cable from the socket.
Clean the tool shank and lubricate it moderately.
When inserting the tool into the clamping head, rotate the tool
slowly until it is clamped. Then check whether the tool is fixed reli-
ably and cannot fall out of the clamping head.
Pay attention not to damage the cap protecting the clamping
head from dust (2).
Replace the damaged cap for a new one immediately!
Tool Removal
Move the fixing collar (3) towards the device casing and remove
the tool.
Chisel Setting
Set the operating mode switch (7) to the position .
By hand rotation the chisel can be set to optional requested work
position.
Then swivel the operating mode switch (7) back to the position
.
The chisel will be clamped automatically when the radial pressure
is applied to it during the work (chiselling).
Mounting of the chuck with the adapter
Prior to commencing any intervention into the device, at first dis-
connect the power cable from the socket.
Clean the tool shank and lubricate it moderately.
When mounting the adapter (10) with the chuck (11) into the
clamping head (1), rotate the adapter slowly until the adapter
shank is clamped. Then check whether the chuck with the adapter
is fixed reliably and cannot fall out of the clamping head.
Removal of the chuck with the adapter
Move the fixing collar (3) towards the device casing and remove
the adapter (10) with the chuck (11).
Tips for practice
Do not drill on the places of possibly laid (underplaster) gas or wa-
ter pipes or el. wiring.
Check the place subject to drilling at first, e.g. by using a metal
detector.
Use perfectly sharpened drills for metal drilling and adequate drills
with tungsten carbide bits for stone and concrete drilling.
Adapt the revolutions to the drilled material and to diameter of the
used drill.
Percussion drilling and chiselling
Use protective goggles and ear protectors.
Do not apply excessive force on the drilling hammer, its output will
not be increased this way anyhow.
The best result of chiselling will be reached when the material is
removed by small pieces.
When chiselling, always wear protective goggles and work
with the additional handle (9).
Check prior to starting the device, whether the operating mode
switch (7) is set and fixed in the requested position .
Drilling into tiles
Drill the tile at first slowly by applying the simple drilling. Percu-
ssion drilling can be switched only after the tile is drilled through.
Screwing
The screwing bits can be clamped into the chuck (11) (accessories)
or directly into the adapter (9) (accessories).
Maintenance
Prior to commencing any intervention into the device, at first dis-
connect the power cable from the socket.
Keep the vent holes (4) clean continuously.
Clean the plastic parts accessible from outside regularly by a clean
rag without using any detergents.
After long-time use in severe conditions the device should be
brought to the authorized service centre of the NAREX company
for inspection and thorough cleaning.
The device is equipped by self-detachable carbon brushes. If the
carbon brushes are worn, the motor will be switched off automati-
cally. Rotor damage is thus prevented. The carbon brushes must be
replaced by the authorized service centre.
After each ca 100 hours of work the device must be brought to the
service centre for regular maintenance guaranteeing permanently
adequate performance and high service life.
During regular maintenance the following operations shall be ca-
rried out:
• Cleaning of motor bonnet, removal of deposits, impurities and
dust.
• Clamping hub cleaning.
• Check of piston rings for wear.
• Check of the carbon brushes for wear.
• Replacement of lubricants.
• Check of safety clutch for correct functioning.
Содержание EKK 26 E
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