Warranty
Hilti warrants that the tool supplied is free
of defects in material and workmanship.
This warranty is valid as long as the tool is
operated and handled correctly, cleaned
and serviced properly and in accordance
with the Hilti Operating Instructions, all
warranty claims are made within 12
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 lubricated with Hilti
grease.
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 ro-
tary hammer drilling position (symbol ).
Fig. 3: Rotary drilling only
Shift setting lever to indicated rotary drilling
only position (symbol ). At this setting,
only the rotary action is transmitted to the drill
bit.
Fig. 4: Chaning 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 properly.
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 following
table: 1 = low r.p.m., 2 = high r.p.m.
Don’t change speeds while the TE25 is
under load.
Recommended 1st speed: 2nd 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 TE25, can also be used for light chiselling
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 chisel 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.
months from the date of the
sale (invoice date), and the
technical system is main-
tained. This means that only
original Hilti consumables,
components and spare parts
may be used in the tool.
This warranty provides the
free-of-charge repair or
replacement of defective parts
only. Parts requiring repair or
replacement as a result of nor-
mal wear and tear are not cov-
ered by this warranty.
Additional claims are exclud-
ed, unless stringent national
rules prohibit such exclu-
sion. In particular, Hilti is not
obligated for direct, indirect,
incidental or consequential
damages, losses or expens-
es in connection with, or by
reason of, the use of, or
inability to use the tool for
any purpose. Implied war-
ranties of merchantability or
fitness for a particular pur-
pose are specifically exclud-
ed.
For repair or replacement,
send tool and/or related parts
immediately upon discovery of
the defect to the address of the
local Hilti marketing organiza-
tion provided.
This constitutes Hilti’s entire
obligation with regard to war-
ranty and supersedes all prior
or contemporaneous com-
ments and oral or written
agreements concerning war-
ranties.