Narex EV 13 G-2 Instrucciones De Uso Originales página 19

7.3 Switching on and off
By pressing the switch button [7] the machine activates and releas‑
ing the button stops it.
7.4 Permanent run
By pressing the switch button [7] to the stop and simultaneous
pressing the latching pin [6] permanent run is achieved.
Repeated pressing the switch button [7] and its release the perma‑
nent run is discontinued.
7.5 Speed control
By light and gradual pressing the controller button [7] you will
achieve low speed and controlled continuous run‑up.
By further gradual pressing the button the speed increases to the
pre‑selected speed.
7.6 Electronic speed pre-selection
Using the pre‑selection wheel [8] the required pre‑selected speed
is set–even if the machine runs. The necessary speed depends on
the type of the material drilled, and a practical test is recommend‑
ed to verify it.
If the machine is loaded considerably, adjust the pre‑selection
wheel [8] to the marginal position in the + direction (max speed
– control disconnected).
After a longer work at low speed leave the machine run idle
for 3 minutes at maximum speed to cool the engine down.
7.7 Gear shiftiDobng
Use the speed lever [10] to adjust the 2nd speed gear:
1st Speed – lower speed gear – higher torque
2nd Speed – higher speed gear – lower torque
In any speed gear you can adjust the final speed by means of the
electronic pre‑selection. However, firstly select the mechanical
speed gear.
Changing the gears can be done at slowing the machine down or
in idle run but never when the machine is fully loaded. Once the
gear is changed, leave the machine start up slowly
7.8 Change in rotation
Adjust the rotation direction switch [9] to the right (left run) or to
the left (right run). The left run allows e.g. cutting the threads and
unscrewing of bolts or nuts.
Changing is blocked if the controller button is pressed. The rotation
direction has to be changed when the machine is idle.
WARNING! If the left run is used, the chuck has to be
screwed on very firmly.
7.9 Removing the chuck with ring gear
Hold the spindle on the surface [2] using an open wrench (13 mm).
Insert the chuck hook [13] into a single opening on the chuck and
by turning left screw the chuck out. Release the firmly clamped
chuck by impacts of the hammer on the chuck hook [13].
7.10 Removing the quick-tightening
chuck
Clamp the hexagonal wrench [15] into the chuck. Hold the spindle
on the surface [2] using a spanner (13 mm). By turning the chuck
to the left using the hexagonal wrench screw the chuck together.
Release the firmly clamped chuck by impacts of the hammer on
the hexagonal wrench.
Proceed in reverse sequence to screw the chuck on.
7.11 Power Plug
WARNING!
Risk of injury if the power tool is used with
incorrect mains power supply.
The power tool may only be used with single‑phase alternating
current with rated voltage of 220–240 V / 50–60 Hz. The power tool
has double insulation against injury by electric current in line with
standard EN 62841 and features integrated interference elimina‑
tion in line with standard EN 55014.
Before turning the tool on, check that the information on the pro‑
duction plate matches the real voltage in the socket.
The power cable can be extended if needed as follows:
– 20 m length, conductor cross section: 3 × 1.5 mm
– 50 m length, conductor cross section: 3 × 2.5 mm
Only use extension cables designed for outdoor use and bearing
the appropriate markings.
Operation with an Electric Generator (EG) with a Combustion
Engine
The manufacturer of the tool cannot guarantee faultless operation
with all EGs.
The tool can be used with an EG if the following conditions are met:
» The output voltage of the EG must always be in 230 VAC ±10 %
range. The EG should be fitted with automatic voltage regula‑
tion (AVR). Without AVR, the tool may not work correctly and
may even get damaged!
» The power of the EG must be at least 2.5 times higher than the
input power of the tool.
» Using the power tool with an EG with insufficient power may
result in speed fluctuations and reduced output of the tool.
8 Work instructions
Drill bits
For steel use perfect and sharpened drill bits made of good‑quality
high‑speed steel.
Drilling stands
For precise drilling on smaller parts, use of a drilling stand is
recommended.
Clamping device
Clamp the worked pieces properly into the screw‑type clamping
unit. Thus turning of the piece is avoided, as well as a potential
accident.
Thread cutting
Clamp the screw tap properly in the chuck using a considerable
power, otherwise it will slide through.
9 Maintenance and service
ATTENTION!
Risk of el. shock. Prior to start any oper-
ation, pull the plug out of the socket!
The vents [5] on the motor housing must not be covered or
clogged.
After about 200 hours of operation the following works need
to be done:
– Check of the brushes length Brushes shorter than 5 mm must
be replaced with new ones.
– Exchange of lubricating grease in the gearbox and bearings.
When the carbon brushes are worn down, the tool switches off
automatically. The tool must be brought to a service centre for
maintenance.
It is recommended to clean the tool regularly. Using cleaning
agents that contain solvents may erode or damage painted surfac‑
es and plastic parts. If you use such cleaning agents, it is recom‑
mended to try them out first on a small area that is not very visible.
The vents on the motor housing must not be covered or clogged!
Leave the replacement of any parts, e.g., carbon brushes, power
cable etc., to an authorised service centre. Should the tool fall or
suffer a hard impact, have it checked by an authorised service cen‑
tre to ensure the tool is mechanically and electrically safe to use.
ATTENTION!
With respect to protection from el. shock
and preservation of the class of protection, all mainte-
nance and service operations requesting jig saw case
removal must be performed by the authorized service centre
only!
The current list of authorized service centres can be found at our
website www.narex.cz.
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