Switching On / Off; Restart Interlock; Rough Grinding; Care And Maintenance - Hilti AG 180-20 D Manual De Instrucciones

CAUTION
The insert tool may get hot during use. Wear protective
gloves when changing insert tools.
CAUTION
In accordance with the applications for which it is de-
signed, the power tool produces a high torque. Always
use the side handle and hold the power tool with both
hands. The user must be prepared for sudden sticking
and stalling of the insert tool.
CAUTION
Working on the material may cause it to splinter. Wear
eye protection and protective gloves. Wear breathing
protection if no dust removal system is used. Splin-
tering material presents a risk of injury to the eyes and
body.
WARNING
Reduce the load on the power tool by avoiding tilt-
ing the disc in the kerf when cutting. The disc may
otherwise break, or the power tool may kick back or stall.
CAUTION
Improve the blood circulation in your fingers by re-
laxing your hands and exercising your fingers during
breaks between working.
WARNING
Keep inflammable materials away from the working
area.
7.1 Cutting
When cutting, apply moderate feed pressure and do not
tilt the power tool or, respectively, the cutting disc (hold
at approx. 90° to the surface being cut). For best results,
start cutting at the smallest cross section when cutting
profiles and square tube.

7.2 Rough grinding

CAUTION
Never use abrasive cutting discs for grinding.

8 Care and maintenance

CAUTION
Disconnect the mains plug from the power outlet.
8.1 Care of the power tool
DANGER
When working on metal under extreme conditions, con-
ductive dust may accumulate inside the power tool. This
may negatively affect the power tool's protective in-
sulation. Under such conditions, the tool should be
plugged into a ground fault circuit interrupter (RCD)
and use of a stationary dust removal system and
frequent cleaning of the tool's cooling air slots is
recommended.
Best results are obtained when the disc maintains an
angle of 5° to 30° with the working surface when grinding.
Move the power tool to and fro while applying moderate
pressure. This will avoid overheating and discoloration of
the workpiece and ensure an even surface finish.

7.3 Switching on / off

WARNING
Test new cutting or grinding discs by allowing them
to run at maximum speed in a protected area for at
least 60 seconds.
7.3.1 Switching on (AG 180‑20D)
1. Plug the supply cord into the power outlet.
2. Press the safety interlock to unlock the on/off switch.
3. Press the on/off switch as far as it will go.
In this way, the hand is closed around the power
tool, which ensures optimum safety while working.
7.3.2 Switching off (AG 180‑20D)
Release the on / off switch.
7.3.3 Switching on and locking the switch
(AG 180‑20P) 7
1. Plug the supply cord into the power outlet.
2. Press the safety interlock to unlock the on/off switch.
3. Press the on/off switch and then push the safety
interlock into the engaged position.
7.3.4 Switching off after locking the switch
(AG 180‑20P)
Press the on / off switch (the lock releases).

7.4 Restart interlock

NOTE
If the power tool is unplugged from the electric sup-
ply while the on / off switch is pressed or locked and
subsequently plugged back into the electric supply, the
power tool will not restart. With the AG 180-20P the
switch lock must be released while the power tool is
disconnected from the electric supply before the supply
cord is again plugged into the power outlet.
The outer casing of the power tool is made from impact-
resistant plastic. Sections of the grip are made from a
synthetic rubber material.
Never operate the power tool when the air vents are
blocked. Regularly clean the power tool's air vents care-
fully with a dry brush. Do not permit foreign objects to
enter the interior of the tool. The motor's fan will draw
dust into the casing and an excessive accumulation of
conductive dust (e.g. metal, carbon fiber) may cause
electrical hazards. Clean the outside of the power tool at
regular intervals with a slightly damp cloth. Do not use
a spray, steam pressure cleaning equipment or running
water for cleaning. This may negatively affect the elec-
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