Operating/Servicing; Care Of Electric Tool; Insert Tool Reconditioning - Hilti TE 805 Operating Instructions Manual

Sound and vibration information (according to EN60745):
A-weighted sound power level:
A-weighted emission sound pressure level:
For the given sound power level as per EN 60745, the tolerance is 3 dB.
Ear protection must be worn
Triaxial vibration value (vibration vector sum)
measured in accordance with EN 60745-2-6
Chiselling, (a ):
h, Cheq
Uncertainty (K) for triaxial vibration value:
Right of technical modifications reserved!
Operating the TE805 breaker
Before starting work
Read the safety precautions.
The machine should be used only for the
applications for which it is intended, i.e.
chiselling, bushing, packing, cutting and
driving in mineral materials such as con-
crete, masonry and asphalt etc. It is not
suitable for use on metal surfaces.
The breaker must be in good working order
and used as directed (side handle firmly
tightened in the correct position and chis-
el secured properly in the chuck).
The electric mains supply must correspond
to the information printed on the rating
plate.
The machine is double insulated. Earthing/
grounded of this machine is not permit-
ted.
Fig. 1: Cleaning chisel connection ends
The chuck is not incorporated in the
machine's lubrication system. The con-
10
Printed: 07.07.2013 | Doc-Nr: PUB / 5136358 / 000 / 00
101 dB (A)
90 dB (A)
15.0 m/s 2
1.5 m/s 2
nection ends of chisels and other tools
must therefore be cleaned regularly and
lubricated with Hilti grease. Use a dust
shield on the chisel.
Starting time at low temperatures
The starting time (until the hammering
action begins to operate) can be reduced
by jolting the chisel against the working
surface as the machine is switched on.
Operation
While working, hold the machine secure-
ly with both hands, using the grip and side
handle. Check the security of the stance or
position from which you are working at
regular intervals (ladders do not provide a
secure stance and present an accident haz-
ard).
Do not apply excessive pressure - this will
not increase the machine's performance.
Simply position and guide the chisel.
Fig. 2: Inserting a chisel
Insert the chisel by pushing it into the
chuck in the desired position, against
spring pressure, until it locks automatical-
ly. To remove the chisel, pull back the lock-
ing sleeve and pull out the chisel.
Fig. 3: Side handle
Move the side handle to the desired posi-
tion and clamp it securely by tightening the
knob.
Fig. 4: Beginning work
Switch on the breaker and bring the blade
of the chisel into contact with the work sur-
face. It is not necessary to apply constant
finger pressure to the switch as it remains
in the ON position for sustained operation.
Servicing
The TE 805 is equipped with automatic cut-
out carbon brushes which break the pow-
er circuit after a predetermined period of
operation, indicating that the machine
requires to be serviced. Failure to observe
this point could result in expensive conse-
quential damage to the machine.
Electric tools must comply with the applic-
able safety regulations. Servicing, there-
fore, may be carried out only by recognised
electrical specialists. The use of original
Hilti parts ensures optimum safety.
Care of the electric tool
-CAUTION-
Keep the power tool, especially its grip
surfaces, clean and free from oil and
grease. Do not use cleaning agents which
contain silicone.
The outer casing of the tool is made from
impactresistant plastic. Sections of the grip
are made from a synthetic rubber materi-
al. Never operate the tool when the venti-
lation slots are blocked. Clean the ventila-
tion slots carefully using a dry brush. Do
not permit foreign objects to enter the inte-
rior of the tool. Clean the outside of the 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
electrical safety of the tool.

Insert tool reconditioning

Insert tool reconditioning should be car-
ried out only by authorised specialists.
If the blade of a pointed, flat or wide-flat
chisel is only slightly worn, it can be
resharpened by grinding. Note: Ensure
that the surface of the chisel does not over-
heat when grinding (no discoloration).
If the blade of a pointed or flat chisel is
badly worn, it requires to be reforged.
Heat the tip of the chisel (approx. 80 mm)
to approx. 1000–1100° C (bright yellow-
red to yellow) and forge to shape. Allow the
chisel to cool slowly to room temperature
(avoid draughts!). Do not reharden and
temper the chisle.