Hilti TE 104 Bedienungsanleitung Seite 10

Please note before starting
to work
1. The electric supply must be the same as
given on the TE 104 nameplate.
2. The TE 104 is double insulated and must
not be grounded (earthed).
3. Applying excessive pressure will not in-
crease the TE104's performance. Just posi-
tion the bit and guide it into the hole.
Wear protective goggles and gloves.
Please read the enclosed safety precau-
tions before starting to work.
When working with the machine, it must
be held with two hands. Always make sure
that you have a safe stance/foothold.
Fig. 1: Cleaning of connection ends
The chuck is not incorporated in the lubri-
cating system of the TE104. The connec-
tion ends of chisels, etc. must, therefore,
be cleaned regularly and lubricated spar-
ingly with Hilti grease.
Holding the front section:
The cylinder section has been insulated
against heat and designed for a good hold.
Operators, however, should wear suitable
gloves.
Start-up in cold surroundings
The TE 104 will start up quicker if its jolted
once briefly against the work surface just
after switching on.
10
Printed: 07.07.2013 | Doc-Nr: PUB / 5070788 / 000 / 00
Operating when chiselling
Fig. 2: Attach the chisel chuck (change
the needle chuck.)
Pull forward locking ring against spring
pressure and mount chuck on spindle.
Release locking ring and turn slightly until
locking balls engage.
Note: The chisel chuck can only be
attached when the chuck is open.
Fig. 3: Insert/change a chisel.
Turn chuck counter-clockwise (symbol
). Insert chisel as far as it will go. Turn
( )
chuck in opposite direction and lock chisel
(symbol ).
( )
Position the chisel blade. Press forward
locking sleeve, turn chuck with inserted
chisel more or less to desired position,
release locking ring, and continue turning
until locking ring engages.
Select the hammering power. Regulate
hammering power from 0 to 100 %, as
required, using electronic switch. The
TE104 runs continuously without maintain-
ing pressure on the switch. Press switch
again to switch off.
Operation when needle
scaling
Attach the needle chuck (change the
chisel chuck.)
Proceed as for chisel chuck, fig. 3.
Fig.4: Select/adjust needle protector.
Select a round or oval needle protector
depending on the scaling job i.e. a flat, cor-
ner or edge surface. Adjust needle protru-
sion and secure (open) protector using
wing nut.
Fig. 5: Change the needle set. Press nee-
dle holder towards locking ring and then
turn. Spring tension separates needle hold-
er from locking sleeve. Needles can be
replaced separately or as a set. Apply only
moderate pressure when working.
Caution! Insufficient pressure will
shorten the life. (Make sure the tool is
always in contact with the base materi-
al.)
Servicing
Electric tools must comply with the respec-
tive safety regulations. Servicing must,
therefore, be carried out only by qualified
electrians/electrical specialists. The use of
original Hilti parts ensures an optimum of
safety.
Chisel maintenance
Resharpening
When resharpening wide-flat, narrow-
flat and pointed chisels which are not
badly worn at the cutting edge, take care
to avoid overheating the surface (no dis-
coloration!).
Resharpening limit: to remaining length
of 130 mm from connection end.
Pointed and narrow-flat chisels
Reforge the chisel at about 900°C to
1000°C (bright yellowish red–yellow).
Afterwards, cool down to room tempera-
ture in air.
Forging and quenching the chisel in this
way is all that is required.
No further hardening and tempering is
necessary.
Wide-flat chisel
As the cross-section of a worn wide-flat
chisel is not sufficient for reforging,
these chisels should not be reforged
but only resharpened (ground). The
blade is long enough to be resharpened
several times.
Resharpening:
Pointed chisel
Narrow flat chisel
Wide flat chisel