Remember before starting
to work
When working with the machine, it must be
held two hands. Always make sure that you
have a safe stance / foothold.
1. The electric supply must be the same as
given on the TE25 nameplate.
2. The TE25 is double insulated and
must
not,
therefore,
be grounded
(earthed).
3. Applying excessive pressure will not in-
crease the TE25’s performance. Just posi-
tion the bit and guide it into the hole.
4. Check that you have set the right speed.
Please refer to the enclosed safety pre-
cautions.
Clean the drill bit:
The chucks is not incor-
porated in the lubricating system of the TE 25.
Drill bit connection ends must therefore be
cleaned regularly and sprayed sparingly with
Hilti lubricant.
Shorten the start-up time at low temper-
tures
by jolting the drill bit briefly against the
work surface when starting the TE 25.
Operation
Fig. 1: Insertion of TE-C-drill bit/tool
Insert connection end in any position, turn
it until the grooves engage and it can be in-
serted further.
Pull back sleeve (1) and push tool as far as
it will go. Release sleeve (1).
To remove tool, pull back sleeve (1) and take
out tool.
Fig. 2: Rotary hammer drilling
To hammer drill into concrete, masonry and
stone, shift setting lever to indicated rotary
hammer drilling position (symbol
).
Fig. 3: Rotary drilling only
Shift setting lever to indicated rotary drilling
only position (symbol
). At this set-
ting, only the rotary action is transmitted to
the drill bit.
Fig. 4: Changing the chuck
Turn sleeve (1) to right (symbol
( )
) and
take off complete chuck. When attaching
chuck, press on until it touches striker. Turn
sleeve (1) to left (symbol
( )
) and lock.
Always make sure the chuck is locked prop-
erly.
Fig. 5: Selecting the correct speed
If the wrong speed is selected, the life of the
TE25 and drill bit/tool will be shortened. Select
the correct speed, as shown in the follow-
ing table: 1 = low r.p.m., 2 = high r.p.m.
Don’t change speeds while the TE 25 is
under load.
Recommended
1
st
speed:
2
nd
speed:
speeds:
0–310 r.p.m.
0–640 r.p.m.
TE-CX/C Drill bit
22–38.5 mm dia.
5–20 mm dia.
TE-C-BK
Percussion core bit
66–90 mm dia.
Light-duty chiselling:
Using an additional chisel adaptor from Hilti,
the TE 25, can also be used for light chis-
elling work individual cases. Never use a
chisel in the TE-C chuck. The rotary action
could cause accidents and the life of the TE25
will be greatly reduced. Please refer to the
separate operating instructions for the chis-
el adaptor.
Rotary drilling:
The TE25 can also be used for rotary drilling
using an additonal quick-release chuck from
Hilti. Change procedure: a) put quick-release
chuck onto striker; b) turn chuck until it snaps
into the double spline; c) lock as shown by
photo 4.
Servicing:
Electric tools comply with respective safe-
ty regulations. Servicing must, therefore,
be carried out only by qualified electrical
specialists. For your safety, only use orig-
inal Hilti spare parts.
10
Disposal
Most of the materials from
which Hilti power tools are man-
ufactured can be recycled. The
materials must be correctly separated
before they can be recycled. In many
countries, Hilti has already made arrange-
ments for taking back your old electric
tools for recycling. Please ask your Hilti
customer service department or Hilti
sales representative for further informa-
tion.
Only for EU countries
Disposal of electric tools together with
household waste is not permissible!
In observance of European Directive
2002/96/EC on waste electrical and elec-
tronic equipment and its implementation
in accordance with national law, electric
tools that have reached the end of their
life must be collected separately and
returned to an environmentally compati-
ble recycling facility.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070807 / 000 / 00
