Hilti TE 7-A User manual

*202925*
202925
Hilti Corporation
LI-9494 Schaan
Tel.: +423 / 234 21 11
Fax: +423 / 234 29 65
www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan W 3091 0706 10-Pos. 1 1 Printed in Liechtenstein © 2006
Right of technical and programme changes reserved S. E. & O. 202925 /A
Bedienungsanleitung de
Operating instructions en
Mode d’emploi fr
Manual de instrucciones es
Istruzioni d’uso it
Gebruiksaanwijzing nl
Brugsanvisning da
Bruksanvisning no
Bruksanvisning sv
Käyttöohje fi
Manual de instruções pt
Οδηγιες χρησεως el
Lietoßanas pamåcîba lv
Instrukcija lt
Kasutusjuhend et
TE 7-A
36 Volt Li-Ion
3.3 Ah
36 Volt Li-Ion
3.3 Ah
14
12 13

1
5678
234
1
5678
234
36 Volt Li-Ion
3.3 Ah
36 Volt
1
1
2
1
341
2/5
1/4
32
1
2
2
4
6
1
5
4
23
6
1
5
1
3
1
2
73
1
1
3
2
1
1
2
34
8
9
10 11

TE 7‑A cordless rotary hammer
It is essential that the operating instructions
are read before the power tool is operated
for the first time.
Always keep these operating instructions
together with the power tool.
Ensure that the operating instructions are
with the power tool when it is given to other
persons.
Contents Page
1. General information 17
2. Description 18
3. Insert tools, accessories 20
4. Technical data 20
5. Safety rules 21
6. Before use 24
7. Operation 25
8. Care and maintenance 28
9. Troubleshooting 29
10. Disposal 30
11. Manufacturer’s warranty - tools 30
12. EC declaration of conformity 31
Operating controls and parts 1
@Chuck
;Function selector switch
=Control switch
%Forward / reverse switch
&Side handle with depth gauge
(Interface for TE DRS‑M dust removal module
)Battery
+Release buttons
1. General information
1.1 Safety notices and their meaning
WARNING
Draws attention to a potentially dangerous situation
that could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation
that could lead to slight personal injury or damage to
the equipment or other property.
en
17

NOTE
Used to draw attention to an instruction or other
useful information.
1.2 Explanation of the pictograms and other
information
Warning signs
General
warning Warning: electricity Warning: caustic
substances
Obligation signs
Wear eye
protection Wear a hard hat Wear ear protection Wear protective
gloves
Wear
breathing
protection
Symbols
Read the
operating
instructions
before use.
Return waste
material for
recycling.
Drilling
without
hammering
Hammer
drilling
Chiseling Chisel position
adjustment Volts Direct current
Rated speed
under no load Revolutions per minute Diameter Forward / reverse
1These numbers refer to the corresponding illustra-
tions. The illustrations can be found on the fold-out
cover pages. Keep these pages open while studying
the operating instructions.
In these operating instructions, the designation “the
power tool” always refers to the TE 7-A cordless
rotary hammer.
Location of identification data on the power tool
The type designation can be found on the type iden-
tification plate and the serial number on the side of
the motor housing. Make a note of this data in your
operating instructions and always refer to it when
making an enquiry to your Hilti representative or
service department.
Type:
Serial no.:
2. Description
2.1 Use of the product as directed
The power tool is a cordless rotary hammer with pneumatic hammering mechanism.
The power tool is intended for drilling in concrete, masonry, metal and wood. The power tool can also be used
for light chiseling work on masonry and surface finishing on concrete.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
The power tool is designed for professional use and may be operated, serviced and maintained only by trained,
authorized personnel. This personnel must be informed of any special hazards that may be encountered. The
power tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or
when used not as directed.
en
18

The working environment may be as follows: construction site, workshop, renovation, conversion or new
construction.
Changes or modifications to the power tool are not permissible.
Do not use the battery as a power source for other unspecified power tools.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
2.2 Chuck
TE‑C CLICK chuck
2.3 Switches
Speed control switch for smooth starting
Function selector switch
Forward / reverse switch
2.4 Grips
Vibration-absorbing, pivotable side handle with depth gauge
Vibration-absorbing grip
2.5 Protective feature
Mechanical slip clutch
2.6 Lubrication
Oil lubrication
2.7 Items supplied as standard
1 Power tool
1TE‑C CLICK chuck
1 Side handle with depth gauge
1 Operating instructions
1 Hilti toolbox or cardboard box
1 Cleaning cloth
1Grease
2.8 Additional items required for operating the tool
B 36/2.4 NiCd battery with C 7/36‑ACS charger or B 36/3.3 Li-ion battery with C 4/36‑ACS charger.
2.9 Li‑ion battery charge status
LEDs light constantly LEDs blink Charge status C
LED 1,2,3,4 -C≧75 %
LED 1,2,3 -50 % ≦C<75%
LED 1,2 -25 % ≦C<50%
LED 1 -10 % ≦C<25%
-LED 1 C<10%
en
19

NOTE
Indication of the charge status is not possible while the power tool is in operation or immediately after
operation. Indication is given (LED 1 blinks) only when the battery is fully discharged or when it is too hot
(temperature >80°).
3. Insert tools, accessories
Insert tools and accessories for the TE 7‑A
Hammer drill bits Ø5to28mm
Forming and installation drill bits Ø5to20mm
Lightweight percussion core bits Ø25 to 68 mm
Multipurpose hole saws Ø25 to 82 mm, hexagonal
Pointed chisels C-type connection end
Flat chisel C-type connection end
Shaped chisels C-type connection end
Anchor-setting tools C-type connection end
Quick-release chuck for wood and metal drill bits With smooth shank, hexagonal shank
Keyed chuck With smooth shank, hexagonal shank
Wood drill bits Ø3to20mm
Metal drill bits Ø3to13mm
Metal drill bits / stepped drill bits Ø5to22mm
Charger C7/36-ACS
Charger C4/36-ACS
Battery B36/2.4 NiCd
Battery B36/3.3 Li-ion
Dust module TE DRS-M
Belt adapter (for B36/2.4 NiCd battery only) BAP 36
Angular chuck C-type connection end
4. Technical data
Power tool TE 7‑A
Rated voltage (DC voltage) 36 V
Weight in accordance with EPTA procedure 01/2003 4.9 kg
Dimensions (L x W x H) with Li-ion 401 mm x 111 mm x 217 mm
Dimensions (L x W x H) with NiCd and belt adapter 387mmx107mmx217mm
Drilling speed without hammering 0 to 800 r.p.m.
Hammerdrillingspeed 740r.p.m.
Single impact energy 2.6 J
en
20

Noise and vibration information (measured in accordance with EN 60745):
Typical A-weighted sound power level 99 dB (A)
Typical A-weighted emission sound pressure level. 88 dB (A)
Uncertainty for the given sound level 3dB(A)
Triaxial vibration value (vibration vector sum) with
B36/2.4 NiCd Measured in accordance with EN 60745‑2‑1prAA: 2005
Drilling in metal, (ah, D)<2.5m/s²
Triaxial vibration value (vibration vector sum) with
B36/2.4 NiCd Measured in accordance with EN 60745‑2‑6prAB: 2005
Hammerdrillinginconcrete,(a
h, HD)10.5m/s²
Chiseling, (ah, Cheq)8.5 m/s²
Triaxial vibration value (vibration vector sum) with
B36/3.3 Li-ion Measured in accordance with EN 60745‑2‑1prAA: 2005
Drilling in metal, (ah, D)<2.5m/s²
Triaxial vibration value (vibration vector sum) with
B36/3.3 Li-ion Measured in accordance with EN 60745‑2‑6prAB: 2005
Hammerdrillinginconcrete,(a
h, HD)11m/s²
Chiseling, (ah, Cheq)9m/s²
Uncertainty (K) for triaxial vibration value 1.5 m/s²
Other information about the power tool
Chuck TE‑CClick
Battery B 36/2.4 NiCd B 36/3.3 Li-ion
Rated voltage 36 V 36 V
Capacity 2.4 Ah 3.3 Ah
Energy capacity 86.4 Wh 118.8 Wh
Weight 2.1 kg 1.6 kg
Type of cell Nickel-cadmium Li‑ion
Number of cells 30 30
Recommended working temper-
ature range ‑20 to 80°C ‑20 to 80°C
5. Safety rules
NOTE
The safety rules in section 5.1 contain all general
safety rules for power tools which, in accordance
with the applicable standards, require to be listed in
the operating instructions. Accordingly, some of the
rules listed may not be relevant to this tool.
5.1 General safety rules
WARNING! Read all instructions! Failure to follow all
instructions listed below may result in electric shock,
fire and/or serious injury. The term “power tool” in
all of the warnings listed below refers to your mains-
operated (corded) power tool or battery-operated
(cordless) power tool. SAVE THESE INSTRUCTIONS.
5.1.1 Work area safety
a) Keep work area clean and well lit. Cluttered and
dark areas invite accidents.
b) Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
en
21

c) Keep children and bystanders away while oper-
ating a power tool. Distractions can cause you to
lose control.
5.1.2 Electrical safety
a) Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
b) Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
c) Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
theriskofelectricshock.
d) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords
increase the risk of electric shock.
e) When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of
electric shock.
5.1.3 Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personal injury.
b) Use safety equipment. Always wear eye pro-
tection. Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing pro-
tection used for appropriate conditions will reduce
personal injuries.
c) Avoid accidental starting. Ensure the switch is
in the off-position before plugging in. Carrying
power tools with your finger on the switch or
plugging in power tools that have the switch on
invites accidents.
d) Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
e) Do not overreach. Keep proper footing and bal-
ance at all times. This enables better control of
the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewellery
or long hair can be caught in moving parts.
g) If devices are provided for the connection of dust
extraction and collection facilities, ensure these
are connected and properly used. Use of these
devices can reduce dust-related hazards.
5.1.4 Power tool use and care
a) Do not force the power tool. Use the correct
power tool for your application. The correct power
tool will do the job better and safer at the rate for
which it was designed.
b) Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must
be repaired.
c) Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing ac-
cessories, or storing power tools. Such prevent-
ive safety measures reduce the risk of starting the
power tool accidentally.
d) Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the
power tool or these instructions to operate the
power tool. Power tools are dangerous in the
hands of untrained users.
e) Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and
any other condition that may affect the power
tool’s operation. If damaged, have the power
tool repaired before use. Many accidents are
caused by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
g) Use the power tool, accessories and tool bits
etc., in accordance with these instructions and
in the manner intended for the particular type
of power tool, taking into account the working
conditions and the work to be performed. Use of
the power tool for operations different from those
intended could result in a hazardous situation.
5.1.5 Battery tool use and care
a) Ensure the switch is in the off position before
inserting battery pack. Inserting the battery pack
into power tools that have the switch on invites
accidents.
en
22

b) Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one
typeofbatterypackmaycreateariskoffirewhen
used with another battery pack.
c) Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
d) When battery pack is not in use, keep it away
from other metal objects like paper clips, coins,
keys, nails, screws, or other small metal objects
that can make a connection from one terminal to
another. Shorting the battery terminals together
may cause burns or a fire.
e) Under abusive conditions, liquid may be ejec-
ted from the battery; avoid contact. If contact
accidentally occurs, flush with water. If liquid
contacts eyes, additionally seek medical help.
Liquids ejected from the battery may cause irrita-
tion or burns.
5.1.6 Service
a) Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
5.2 Additional safety precautions
5.2.1 Personal safety
a) Wear ear protectors. Exposure to noise can cause
hearing loss.
b) Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
c) Always hold the power tool securely with both
hands on the grips provided. Keep the grips dry,
clean and free from oil and grease.
d) Breathingprotectionmustbewornifthepower
tool is used without a dust extraction system for
work that creates dust.
e) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
f) Avoid touching rotating parts. Switch the power
tool on only after bringing it into position at
the workpiece. Touching rotating parts, especially
rotating drill bits, discs or blades, etc. may lead to
injury.
g) Activate the safety lock (forward / reverse switch
in the middle position) before storing or trans-
porting the power tool.
5.2.2 Power tool use and care
a) Secure the workpiece. Use clamps or a vice
to secure the workpiece. The workpiece is thus
held more securely than by hand and both hands
remain free to operate the power tool.
b) Check that the insert tools used are compatible
with the chuck system and that they are secured
in the chuck correctly.
5.2.3 Cordless tool use and care
a) Observe the special instructions applicable to the
transport, storage and use of Li-ion batteries.
b) Do not expose batteries to high temperatures or
fire. This presents a risk of explosion.
c) Batteries must not be opened or dismantled,
squashed, heated to temperatures over 100°C
or incinerated. A risk of fire, explosion or in-
jury through contact with caustic substances may
otherwise result.
d) Do not use batteries other than those approved
for use with the applicable power tool or appli-
ance. Use of other batteries or use of the battery
for purposes for which it is not intended presents
a risk of fire and explosion.
e) Do not charge or continue to use damaged bat-
teries (e.g. batteries with cracks, broken parts,
bent or pushed-in and/or pulled-out contacts).
5.2.4 Electrical safety
Before beginning work, check the working area
(e.g. using a metal detector) to ensure that no
concealed electric cables or gas and water pipes
are present. External metal parts of the power tool
may become live, for example, when an electric cable
is damaged accidentally. This presents a serious risk
of electric shock.
en
23

5.2.5 Work area safety
a) Ensure that the workplace is well lit.
b) Ensure that the workplace is well ventilated.
Exposure to dust at a poorly ventilated workplace
may result in damage to the health.
5.2.6 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat, ear pro-
tection, protective gloves and breathing protection
while the power tool is in use.
5.3 Safety in conjunction with the belt adapter
(accessory)
a) Check that the belt adaptor is securely attached
to the belt before beginning work.
b) Take care to ensure that the cord hanging from
the belt adaptor does not catch on anything.
Disconnect the power tool from the belt adaptor
before laying it down.
6. Before use
6.1 Battery use and care
NOTE
Battery performance drops at low temperatures.
Never use the battery until the cells become fully
discharged. Change to the second battery as soon
as a drop in performance is noticed. Recharge the
battery immediately so that it is ready for reuse.
Store the battery in a cool, dry place. Never store
the battery where it is exposed to direct sunlight or
sources of heat, e.g. on heaters / radiators or behind a
motor vehicle windscreen. Batteries that have reached
the end of their life must be disposed of safely and
correctly to avoid environmental pollution.
6.2 Charging the battery
CAUTION
Use only Hilti B 36/2.4 NiCd or B 36/3.3 Li-ion
batteries.
6.2.1 Charging a new battery for the first time
A new battery must be charged correctly for the
first time before use. This will ensure that the cells
form correctly. Incorrect initial charging may have a
permanent, negative effect on battery capacity. Please
refer to the applicable battery charger’s operating
instructions for information about initial charging.
6.2.2 Recharging a battery
CAUTION
Use only the Hilti chargers listed under “Insert tools,
accessories”.
Ensure that the outer surfaces of the battery are
clean and dry before inserting it in the corresponding
charger.
Read the operating instructions for the charger for
further information about the charging procedure.
6.2.2.1 Recharging NiCd batteries
NiCd batteries should be allowed to reach full charge
each time they are charged.
6.2.2.2 Recharging Li-ion batteries
Li-ion batteries are ready for use at any time, even
when only partly charged. Charging progress is in-
dicated by the LED display (see charger operating
instructions).
6.3 Fitting the battery 2
CAUTION
Before fitting the battery, check that the power tool
is switched off and that the safety lock is engaged
(forward/reverse switch in the middle position). Use
en
24

only the Hilti batteries intended for use with this
power tool.
1. Push the battery into the power tool from the rear
until it is heard to engage with a double click.
2. CAUTION A falling battery may present a risk of
injury to yourself or others.
Checkthatthebatteryisseatedsecurelyinthe
power tool.
6.4 Removing the battery 3
1. Press both battery release buttons.
2. Pull the battery out of the power tool toward the
rear.
6.5 Fitting the side handle 4
CAUTION
Remove the depth gauge from the side handle in
order to avoid injury.
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Release the side handle clamping band by turning
the handle counterclockwise.
3. Slide the side handle clamping band over the
chuck and onto the cylindrical section at the front
end of the power tool.
4. Pivot the side handle into the desired position.
5. Securethesidehandlebyturningthegripclock-
wise.
6.6 Use of the belt adapter
NOTE
The working weight of the power tool can be reduced
by fitting an accessory belt adapter. The battery cannot
be charged by way of the belt adapter.
NOTE
The belt adapter cannot be used in conjunction with
Li‑ion batteries.
Observe the instructions given in the section “Safety
rules” on safe use of the belt adapter.
7. Operation
CAUTION
In the event of the drill bit sticking, the power tool
will pivot about its own axis. Always use the power
tool with the side handle fitted and hold it securely
with both hands so that the resulting opposing force
causes the slip clutch to release in the event of the
drill bit sticking. Use clamps or a vice to hold the
workpiece securely.
7.1 Preparing for use
7.1.1 Fitting the insert tool 5
CAUTION
Wear protective gloves when changing the insert tool.
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Check that the connection end of the insert tool is
clean and lightly greased. Clean it and grease it if
necessary.
3. Check that the sealing lip of the dust shield is
clean and in good condition. Clean the dust shield
if necessary or replace it if the sealing lip is found
to be damaged (please refer to the “Care and
maintenance” section).
4. Push the insert tool into the chuck and rotate it
while applying slight pressure until it engages in
the guide grooves.
5. Push the insert tool further into the chuck until it
isheardtoengage.
6. Check that the insert tool has engaged correctly
by pulling it.
7.1.2 Adjusting the depth gauge 6
1. Release the side handle clamping band by turning
the handle counterclockwise.
2. Pivot the side handle into the desired position.
3. Adjust the depth gauge to the desired drilling
depth.
4. Tighten the side handle securely by turning the
grip section. This also clamps the depth gauge in
position.
en
25

7.1.3 Removing the insert tool 7
CAUTION
Wear protective gloves when changing insert tools as
the insert tool will get hot during use.
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Open the chuck by pulling back the chuck release
sleeve.
3. Pull the insert tool out of the chuck.
7.1.4 Removing the chuck 8
CAUTION
Remove the depth gauge from the side handle and
the insert tool from the chuck in order to avoid injury.
NOTE
Set the selector switch to the “Chiseling” position
before removing the chuck.
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Pull the chuck sleeve forward and hold it securely.
3. Removethechuckbypullingitawayfromthe
power tool.
7.1.5 Fitting the chuck 9
CAUTION
Remove the depth gauge from the side handle and
the insert tool from the chuck in order to avoid injury.
NOTE
Set the selector switch to the “Chiseling” position
before removing the chuck.
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Grip the chuck sleeve, pull it forward and hold it
securely in this position.
3. Slide the chuck onto the guide tube from the front
and then release the sleeve.
4. Rotate the chuck until it is heard to engage.
7.2 Operation
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. Splinteringmaterialpresentsariskofinjuryto
the eyes and body.
CAUTION
The work generates noise. Wear ear protectors.
Excessive noise may damage the hearing.
7.2.1 Working at low temperatures
NOTE
The hammering mechanism works only when the
power tool has reached a minimum operating tem-
perature.
Bring the drill bit into contact with the base material
and allow the power tool to run under no load until
the minimum operating temperature is reached. If
necessary, repeat this procedure until the hammering
mechanism begins to operate.
7.2.2 Drilling without hammering 
1. Turn the function selector switch until it engages
in the “Drilling without hammering” position. Do
not operate the function selector switch while the
motor is running.
2. Bring the side handle into the desired position
and check that it is fitted correctly and secured.
3. Fit the battery.
4. Position the power tool and drill bit at the point
where the hole is to be drilled.
5. Press the control switch slowly (drill at a low
speed until the drill bit centers itself in the hole).
6. Press the control switch fully to continue drilling
with full power.
7. Adjust the pressure applied to the power tool
according to the material you are working on. This
will ensure the optimum rate of drilling progress.
7.2.3 Hammer drilling 
1. Turn the function selector switch until it engages
in the “Hammer drilling” position. Do not operate
the function selector switch while the motor is
running.
2. Bring the side handle into the desired position
and check that it is fitted correctly and secured.
3. Fit the battery.
en
26

4. Position the power tool and drill bit at the point
where the hole is to be drilled.
5. Press the control switch slowly (drill at a low
speed until the drill bit centers itself in the hole).
6. Press the control switch fully to continue drilling
with full power.
7. Adjust the pressure applied to the power tool
according to the material you are working on. This
will ensure the optimum rate of drilling progress.
8. Reduce drilling speed shortly before breaking
through in order to avoid spalling.
7.2.4 Chiseling
NOTE
The chisel can be adjusted to 18 different positions.
This ensures that flat chisels and shaped chisels can
always be set to the optimum working position.
NOTE
Check that the connection end of the insert tool is
clean and lightly greased. Clean it and grease it if
necessary.
7.2.4.1 Chisel position adjustment 
CAUTION
Do not operate the power tool when the selector
switch is set to “Chisel adjustment”.
1. Turn the function selector switch until it engages
in the “Chisel adjustment” position. Do not oper-
ate the function selector switch while the motor
is running.
2. Bring the side handle into the desired position
and check that it is fitted correctly and secured.
3. Rotate the chisel to the desired position.
7.2.4.2 Locking the chisel 
Turn the function selector switch until it engages in
the “Chiseling” position. Do not operate the function
selector switch while the motor is running.
7.2.4.3 Chiseling 
1. Fit the battery.
NOTE Do not operate the function selector switch
while the motor is running.
2. Position the tip of the chisel at the point where
chiseling is to begin.
3. Press the control switch.
7.2.5 Forward / reverse
NOTE
The forward / reverse switch is used to select the
direction of rotation of the drive spindle. An interlock
prevents switching while the motor is running. The
control switch is locked when the forward / reverse
switch is in the middle position.
For forward rotation, push the forward / reverse
switch on the side of the power tool toward the chuck
in the direction of the arrow.
For reverse rotation, push the forward / reverse switch
on the side of the power tool toward the grip in the
direction of the arrow.
Bring the forward / reverse switch into the desired
position.
7.2.6 Reading the charge status LED display on
Li‑ion batteries 
NOTE
Indication of the charge status is not possible while
the power tool is in operation or immediately after
operation. Indication is given (LED 1 blinks) only
when the battery is fully discharged or when it is too
hot (temperature >80°).
The Li-ion battery featuresachargestatusLEDdis-
play. During charging, charge status is indicated by
the display on the battery. This information is not
available for 3-4 seconds after using the power tool.
When the battery is at rest (not in use), its charge
status is indicated by the four LEDs on the battery
for a time of three seconds after pressing one of the
battery release buttons.
See section: 2.9 Li‑ion battery charge status
en
27

8. Care and maintenance
CAUTION
Before beginning cleaning, remove the battery from
the power tool in order to prevent unintentional
starting.
8.1 Care of insert tools
Clean off dirt and dust deposits adhering to the insert
tools and protect them from corrosion by wiping the
insert tools from time to time with an oil-soaked rag.
Check that the connection end of the insert tool is
clean and lightly greased. Clean it and grease it if
necessary.
8.2 Care of the power tool
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 ventilation
slots are blocked. Clean the ventilation slots carefully
using a dry brush. Do not permit foreign objects to
enter the interior of the power tool. 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 electrical safety of the
power tool. Always keep the grip surfaces of the
power tool free from oil and grease. Do not use
cleaning agents which contain silicone.
8.3 Cleaning or replacing the dust shield
Clean the dust shield on the chuck with a dry, clean
cloth at regular intervals. Clean the sealing lip by
wiping it carefully and then grease it again lightly
with Hilti grease. It is essential that the dust shield
is replaced if the sealing lip is found to be damaged.
Push the tip of a screwdriver under the edge of the
dust shield and prise it out toward the front. Clean
the area of the chuck in contact with dust shield and
then fit a new dust shield. Press it in firmly until it
engages.
8.4 Care of the NiCd battery
Avoid entrance of moisture. Keep the electrical con-
tacts free from dust, oil and grease. If necessary, use
a clean cloth to clean the contact surfaces. Do not
continue to operate the power tool until the battery
is completely discharged as this may damage the
battery cells. Recharge the battery as soon as a drop
in performance is noticed.
NOTE
Please refer to the operating instructions for the
charger for further information about charging the
battery.
8.5 Care of the Li-ion battery
Avoid entrance of moisture.
Charge the battery fully before using it for the first
time.
In order to achieve maximum battery life, stop dis-
charging the battery as soon as a significant drop in
performance is noticed.
NOTE
If use of the power tool continues, further battery
discharge will be stopped automatically before the
battery cells suffer damage.
Charge the battery with the Hilti charger approved for
use with Li-ion batteries.
NOTE
- A conditioning charge (as is required with NiCd or
NiMH batteries) is not necessary.
- Interruption of the charging procedure has no neg-
ative effect on battery life.
- Charging can be started at any time with no negative
effect battery life. There is no memory effect (as with
NiCd or NiMH batteries).
- For best results, batteries should be stored fully
charged in a cool dry place. Avoid charging the battery
in places subject to high ambient temperatures (e.g.
at a window) as this has an adverse effect on battery
life and increases the rate of self-discharge.
- If the battery no longer reaches full charge, it may
have lost capacity due to aging or overstressing. It
is possible to continue working with a battery in this
condition but it should be replaced in good time.
8.6 Maintenance
WARNING
Repairs to the electrical section of the power tool
may be carried out only by trained electrical spe-
cialists.
en
28

Check all external parts of the power tool for damage
at regular intervals and check that all controls operate
faultlessly. Do not operate the power tool if parts
are damaged or when the controls do not function
faultlessly. If necessary, the power tool should be
repaired by Hilti Service.
8.7 Checking the power tool after care and
maintenance
After carrying out care and maintenance work on
the power tool, check that all protective and safety
devices are fitted and that they function faultlessly.
9. Troubleshooting
Fault Possible cause Remedy
The power tool doesn’t run. The battery is discharged or fitted
incorrectly.
Thebatteryneedstobechargedor,
respectively, it must be heard to
engage with a double click.
Electrical fault. Remove the battery from the power
tool and contact Hilti.
The battery is too hot or too cold. Bring the battery to the recommen-
ded working temperature.
No hammering action. The power tool is too cold. Allow the power tool to warm
up to the minimum operating
temperature.
See section: 6.1 Battery use and
care
The function selector switch is set
to “Drilling without hammering”. Set the function selector switch to “Hammer drilling”.
The forward/reverse switch is set to
reverse rotation. Set the forward/reverse switch to forward rotation.
The control switch can’t be
pressed, i.e. the switch is
locked.
The forward / reverse switch is in
the middle position (transport lock
engaged).
Push the forward / reverse switch
to the left or right.
Running speed suddenly
drops considerably. The battery is discharged. Change the battery and recharge the
discharged battery.
The battery runs down more
quickly than usual. Battery condition is not optimal. Have the battery condition checked by Hilti or replace the battery.
The battery doesn’t engage
with an audible double click. The retaining lugs on the battery are
dirty. Clean the retaining lugs and check
that the battery engages securely.
ContactHiltiServiceiftheproblem
persists.
The power tool or the battery
gets very warm. Electrical fault. Switch the power tool off imme-
diately, remove the battery and
contact Hilti Service.
The power tool has been overloaded
(application limits exceeded). Use the right power tool for the job
(don’t use a low-powered tool for
heavy work).
The drill bit doesn’t rotate. The function selector switch is not
engaged or is set to “Chiseling” or
“Chisel adjustment”.
When the motor has stopped, move
the function control switch to the
“Drilling without hammering” or
“Hammer drilling” position.
en
29

Fault Possible cause Remedy
The insert tool can’t be
released. The chuck is not pulled back fully. Pull the chuck back as far as it will
go and remove the insert tool.
The tool makes no progress. The forward/reverse switch is set to
reverse rotation. Set the forward/reverse switch to forward rotation.
10. Disposal
CAUTION
Improper disposal of the equipment may have serious consequences: The burning of plastic components
generates toxic fumes which may present a health hazard. Batteries may explode if damaged or exposed to
very high temperatures, causing poisoning, burns, acid burns or environmental pollution. Careless disposal
may permit unauthorized and improper use of the equipment. This may result in serious personal injury, injury
to third parties and pollution of the environment.
CAUTION
Dispose of defective batteries without delay. Keep them out of reach of children. Do not attempt to open or
dismantle batteries and do not dispose of them by incineration.
CAUTION
Dispose of the batteries in accordance with national regulations or return them to Hilti.
Most of the materials from which Hilti tools or machines are manufactured can be recycled. The materials must
be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements
for taking back your old tools for recycling. Please ask your Hilti customer service department or Hilti
representative for further information.
For EC countries only
Disposal of electric tools together with household waste is not permissible.
In observance of European Directive 2002/96/EC on waste electrical and electronic 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 compatible recycling
facility.
11. Manufacturer’s warranty - tools
Hilti warrants that the tool supplied is free of defects
in material and workmanship. This warranty is valid
so long as the tool is operated and handled correctly,
cleaned and serviced properly and in accordance with
the Hilti Operating Instructions, and the technical
system is maintained. 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 over the entire
lifespan of the tool. Parts requiring repair or replace-
ment as a result of normal wear and tear are not
covered by this warranty.
Additional claims are excluded, unless stringent na-
tional rules prohibit such exclusion. In particular,
en
30

Hilti is not obligated for direct, indirect, incidental
or consequential damages, losses or expenses in
connection with, or by reason of, the use of, or
inability to use the tool for any purpose. Implied
warranties of merchantability or fitness for a par-
ticular purpose are specifically excluded.
For repair or replacement, send the tool or related
parts immediately upon discovery of the defect to
the address of the local Hilti marketing organization
provided.
This constitutes Hilti's entire obligation with regard
to warranty and supersedes all prior or contempor-
aneous comments and oral or written agreements
concerning warranties.
12. EC declaration of conformity
Designation: Cordless rotary hammer
Type: TE 7‑A
Year of design: 2006
We declare, on our sole responsibility, that this
product complies with the following directives and
standards: 89/336/EEC, 98/37/EC, 91/157/EEC,
93/86/EEC, EN 60745‑1, EN 60745‑2‑6, EN 55014‑1,
EN 55014‑2.
Hilti Corporation
Peter Cavada Matthias Gillner
Leiter Prozess‑und Qualitätsman-
agement Head BU Power Tools
BA Electric Tools & Accessories BU Power Tools
07 2006 07 2006
en
31

en
32