Hilti C7 User manual

C7/24,
C7/36-ACS
*378437*
378437
Hilti Corporation
FL-9494 Schaan
Tel.: +423 / 234 2111
Fax: +423 / 234 29 65
www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan W 2816 0803 1-Pos. 1 1 Printed in Liechtenstein © 2003
Right of technical and programme changes reserved S. E. & O.
378437/B
Bedienungsanleitung de
Operating instructions en
Mode d’emploi fr
Istruzioni d’uso it
Gebruiksaanwijzing nl
Manual de instruções pt
Manual de instrucciones es
Brugsanvisning da
Käyttöohje fi
Bruksanvisning no
Bruksanvisning sv
Οδηγιες χρησεως el
Kasutusjuhend et
Lietoßanas pamåcîba lv
Instrukcija lt

1
C 7/24
CA 7/36
5
6
32
1
7
C 7/36-ACS
5
32
1
4
4
2
5
6
4
3
C 7/24 C 7/36-ACS
Refresh
Auto Refresh
1x
2 sec.

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en
It is essential that the operating instructions
are read before the appliance is operated
for the first time.
Always keep these operating instructions
together with the appliance.
Ensure that the operating instructions are
with the appliance when it is given to other
persons.
C7/24 and C7/36-ACS chargers
1. General information
1.1 Signal words and their meaning
-CAUTION-
Used to draw attention to a potentially dangerous situa-
tion which could lead to minor personal injury or dam-
age to the equipment or other property.
-NOTE-
Used to draw attention to an instruction or other useful
information.
1.2 Pictograms
Contents Page
1. General information 9
2. Description 10
3. Accessories 10
4. Technical data 10
5. Safety precautions 11
6. Before use 12
7. Operation 12
8. Care and maintenance 13
9. Disposal 14
10. Warranty 14
11. Declaration of conformity 15
Operating controls and component parts 
C 7/24 and C 7/36-ACS chargers
Supply cord
Plug
Battery compartment
Indicator lamps
“Refresh” button (only C 7/24)
CA 7/36 adaptor for BP 12, BP 40, BP 72 and
RB 10*
* Only the charger is supplied.
Batteries and adaptors are available as accessories.
These 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 oper-
ating instructions.
In these operating instructions, the designation “appli-
ance” refers to the C 7/24 and C 7/36-ACS chargers.
Location of identification data on the appliance
The type designation and serial number can be found on
the rating plate on the appliance. 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.:
Warning signs
General
warning Warning: electricity Warning: caustic
substances
Alert sign
“Alert sign” in addition to CE mark.
Mandatory for all radio appliances to which special regulations or restrictions
apply somewhere in Europe.
Read the
operating
instructions
before use
Symbols
Do not dispose of batteries
with general refuse.

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3. Accessories
CA 7/36 adaptor for BP 12, BP 40, BP 72 and RB 10
Voltage Designation Battery type Charging time Charging time Examples of tools
with C7/24 with C7/36-ACS using this battery
9.6 V SFB 105 NiMH 45 min. 30 min. SF 100-A, SB 10, HIT-BD 2000
9.6 V SBP 10 NiCd 30 min. 20 min. SF 100-A, SB 10, HIT-BD 2000
9.6 V RB 10 NiCd 20 min. 15 min. FS 10 Ferroscan (with adaptor)
12 V SFB 125 NiMH 45 min. 30 min. SF 120-A, SB 12
12 V SBP 12 NiCd 30 min. 20 min. SF 120-A, SB 12
12 V SFB 121 NiCd 30 min. 20 min. SF 121-A
12 V SFB 126 NiMH 45 min. 30 min. SF 121-A
12 V BP 12 NiCd 20 min. 15 min. TCI 12 (with adaptor)
15.6 V SFB 150 NiCd 30 min. 20 min. SF 150-A
15.6 V SFB 155 NiMH 45 min. 45 min. SF 150-A
18 V SFB 180 NiCd 34 min. 20 min. SF 4000-A, SF 180-A
18 V SFB 185 NiMH 51 min. 45 min. SF 4000-A, SF 180-A
24 V B24/2.0 NiCd 48 min. 20 min. UH 240-A, TE 2-A, WSR 650-A
24 V B24/2.4 NiCd 48 min. 24 min. UH 240-A, TE 2-A, WSR 650 A
24 V B24/3.0 NiMH 72 min. 30 min. UH 240-A, TE 2-A, WSR 650-A
24 V BP 40,
BP 72 NiCd 41–72 min. 20–36 min. TE 5-A (with adaptor)
36 V BP 6-86 NiCd 34 min. TE 6-A (only C 7/36-ACS!)
2. Description
The charger is designed for charging Hilti batteries with
a nominal voltage of 7.2 – 36 volts (C 7/36-ACS charg-
er) or 7.2 – 24 volts (C 7/24 charger).
Items supplied
– C 7/24 standard charger
or
– C 7/36-ACS top charger
– Operating instructions
4. Technical data
Charger C 7/24 C 7/36-ACS
Refresh function Manual refresh function Automatic refresh function
(“Refresh” button)* (“Refresh” function)*
Cooling By convection Active cooling system
Mains voltage 100–127 V and 220–240 V 100–127 V and 220–240 V
Mains frequency 50/60 Hz 50/60 Hz
Battery types NiCd, NiMH NiCd, NiMH
Output voltage 7.2 – 24 V 7.2 – 36 V
Output power 90 W 200 W
Charging times See table in section 2.
Weight Approx. 1.0 kg approx. 1.0 kg
Supply cord length Approx. 2 m approx. 2 m
Dimensions (L×B×H) 170×165×88 mm 170×165×88 mm
Charging control Electronic charging control (microcontroller)
Protection class Electrical protection class II (double insulated) Z
Right of technical changes reserved * See section 7.3 for further information.

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5. Safety precautions
5.1 Basic information concerning safety
In addition to the information relevant to safety given in
each of the sections of these operating instructions, the
following points must be strictly observed at all times.
Read all instructions! Failure to observe the following
instructions may lead to a risk of electric shock, fire
and/or serious personal injury.
5.2 Correct use
●The appliance is designed to charge Hilti batteries with
a nominal voltage of 7.2 – 36 volts (C 7/36-ACS charg-
er) or 7.2 – 24 volts (C 7/24 charger).
●Use the appliance to charge Hilti batteries listed in
these operating instructions only.
●The appliance must not be used in areas where there
is a risk of explosion.
●Manipulation or modification of the appliance is not
permissible.
●Do not render any safety devices ineffective and do
not remove any information or warning plates.
●Do not use the appliance if the plug pins are bent or
damaged (do not use force when plugging in).
●Follow the instructions concerning care and mainte-
nance.
●The appliance and its ancillary equipment may pre-
sent hazards when used incorrectly by untrained per-
sonnel or not as directed.
●The C 7/36-ACS features radio interference suppres-
sion and is thus intended for use worldwide and in EU
and EFTA countries in particular.
5.3 Take the necessary precautions to make the
workplace safe
●Ensure that the workplace is well lit.
●Keep the working area tidy. Objects which could cause
injury should be removed from the working area. Untidi-
ness at the workplace may lead to accidents.
●Keep children away from the appliance. Do not permit
other persons to touch the appliance or its extension
cord.
5.4 General safety precautions
●Use the correct appliance for the job. Do not use the
appliance for purposes for which it was not designed.
Use it only as directed and when in faultless condition.
●Take the surrounding conditions into account. Do not
expose the appliance to rain or snow and do not use
it in damp or wet areas. Do not use the appliance where
there is a risk of fire or explosion.
●Appliances should be stored in a secure place when
not in use. When not in use, the appliance should be
stored in a dry place, locked up or out of reach of chil-
dren.
5.4.1 Electrical hazards
●Protect yourself from electric shocks. Avoid body con-
tact with earthed objects, e.g. pipes and radiators.
●Check the condition of the supply cord at regular inter-
vals and have it replaced by a trained electrical spe-
cialist if found to be damaged. Check the condition of
extension cords at regular intervals and replace these
if damaged.
●Check the condition of the appliance including the sup-
ply cord and extension cord as well as the plug con-
nections. Do not operate the appliance if damage is
found, if the appliance is not complete or if its con-
trols cannot be operated faultlessly.
●Do not cover the appliance. Keep the ventilation slots
free.
●Do not touch the supply cord in the event of it suffer-
ing damage while working. Disconnect the supply cord
plug from the socket.
●The appliance should be repaired by a trained electri-
cal specialist (Hilti service center), using original Hilti
spare parts. Failure to observe this point may result
in a risk of accident to the user.
●Do not use the supply cord for purposes for which it
was not intended. Never carry the appliance by the
supply cord. Do not unplug the appliance by pulling
the supply cord.
●Do not expose the supply cord to heat, oil or sharp
edges.
●When working outdoors, use only extension cords
approved and correspondingly marked as suitable for
outdoor use.
●Avoid using extension cords with multiple sockets
and simultaneous operation of several tools or appli-
ances.
●Never operate the appliance when it is dirty or wet.
Dust or dampness on the surface of the appliance
make it difficult to hold and, under unfavorable condi-
tions, may lead to electric shocks.
●Ensure that the outer surface of the battery is clean
and dry before inserting the battery in the appropri-
ate charger for charging.
●Avoid short-circuiting the battery. A short circuit may
present a fire hazard.
●Avoid touching the contacts.
●Use only the batteries listed in these operating instructions.

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●Batteries must be disposed of correctly and safely on
reaching the end of their life.
5.4.2 Liquids
Caustic liquids may leak from defective batteries. Avoid
contact with these liquids. In the event of contact with
the skin, wash the area affected with soap and plenty of
water. Should the liquid come into contact with the eyes,
flush the eyes with water immediately and subsequent-
ly consult a doctor.
5.5 Requirements to be met by users
●The appliance is intended for professional use.
●The appliance may be operated, serviced and repaired
only by authorized, trained personnel. This personnel
must be informed of any special hazards that may be
encountered.
●Stay alert.
6. Before use
●The electric supply voltage must comply with the spec-
ification given on the rating plate.
6.1 Operate the charger only at a suitable place
●The charger should be operated only at a dry, clean,
cool place but where it is protected from frost.
●The charger must be able to give off heat during the
charging operation. Accordingly, ensure that the ven-
tilation slots remain unobstructed.
●Do not operate the charger inside a closed container.
6.2 Switching on the charger
●Plug the supply cord into the electric socket.
-NOTE-
All 3 indicator lamps light briefly while the self-test is
being carried out. Subsequently, only the green lamp
should light.
The green lamp blinks if the self-test was unsuccessful.
Should the green lamp continue to blink after the sup-
ply cord has been unplugged and then reconnected to
the mains supply, the charger should be returned to a
Hilti service center for repair.
7. Operation
7.1 Inserting the battery   
Insert the battery in the appropriate compartment or
interface, depending on the type of Hilti battery to be
charged.
Please use the Hilti CA 7/36 adaptor when charging
BP 40, BP 72, RB 10 and BP 12, batteries (not supplied
with the charger). Ensure that the shape of the battery
terminal section and the adaptor correspond.
The charging procedure starts automatically after the
battery has been fully inserted in the charger.
-NOTE-
The battery will not suffer damage even when left in the
charger for long periods (with the charger in operation).
-CAUTION-
The charger is designed for use with the Hilti batteries
listed. Charging other batteries is not permissible as this
may result in personal injury or serious damage to the
battery.
Corrosive liquids may leak from defective batteries. Avoid
contact with such liquids.
7.2 Indicators 
Green lamp lights constantly The charger is connect-
ed to the mains supply
and is ready for use.
blinks A malfunction in the
charger or battery was
detected during the self-
test.
Red lamp lights constantly The battery is being
charged.
blinks Battery charging is
complete.

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Yellow lights constantly The battery is being
lamp charged in refresh mode
(see section 7.3).
blinks The battery is too cold
(< 0°C) or too warm
(> 60°C). Charging does
not start. Charging be-
gins automatically (incl.
refresh mode, if applica-
ble) as soon as battery
temperature is within
the specified range.
7.3 Refresh mode
The individual cells of a battery are subject to self-dis-
charge. With older batteries, some of the cells may lose
their charge more quickly than others. As conventional
chargers switch off when the first cells have reached full
charge, the other partly-charged cells never receive the
full charge. The user becomes aware of this effect in the
form of inadequate battery capacity.
This effect can be eliminated by charging the battery in
refresh mode.
7.3.1 C 7/24 
Start charging in refresh mode by pressing and holding
your finger on the "Refresh” button as the battery is
inserted into the charger. Release the button when the
yellow lamp lights (constantly). The yellow lamp lights
as long as charging in refresh mode is taking place.
The battery should be conditioned by charging in refresh
mode at regular intervals, after approx. every 30–50
standard charging cycles, but not more than once a
month, as frequent refreshing may weaken the battery.
Conditioning the battery by charging in refresh mode is,
so to speak, a kind of "training” for the battery. Just as
excessive training can be harmful to the human body,
use of refresh mode too frequently may also weaken the
battery.
7.3.2 C 7/36-ACS
The function described above is controlled automatically
by the C 7/36-ACS charger. Charging in refresh mode
starts automatically, according to battery type, when nec-
essary. When a new battery is charged for the first time,
refresh mode is activated immediately in order to ensure
that the battery cells "form" correctly. If charging in refresh
mode is interrupted, the charger begins charging in
refresh mode when the next charging cycle is started.
-NOTE-
Regular charging in refresh mode ensures maximum
battery performance and long battery life.
The normal charging time may vary (increase) depend-
ing on the state of the battery.
7.4 Battery
A new battery must be charged in normal mode (with-
out refresh function) for at least 12–24 hours or charged
once in refresh mode before being used for the first time
in order to ensure that the cells can "form" optimally.
Never use a battery until it becomes fully discharged.
Recharge the battery as soon as its performance drops
noticeably. When a battery is drained until totally dis-
charged, the cells that become discharged first are dam-
aged by the current still being drawn from the other cells.
-NOTE-
●At low temperatures, battery performance drops.
Batteries should be stored at room temperature when
not in use.
●At high temperatures, batteries suffer damage. Nev-
er charge or store batteries where they are exposed
to the heat of the sun, e.g. at a window or behind a
motor vehicle windscreen, or on top of a radiator etc.
8. Care and maintenance
Unplug the supply cord from the mains socket.
8.1 Care of the appliance
The outer casing of the appliance is made from impact-
resistant plastic. Clean the ventilation slots carefully
using a dry brush. Do not permit foreign objects to enter
the interior of the appliance. Clean the outside of the
appliance at regular intervals using 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 appliance. Always keep the
grip surfaces of the appliance free from oil and grease.
Do not use cleaning agents which contain silicone.
8.2 Maintenance
●Check all external parts of the appliance for damage at
regular intervals and check that all controls operate
faultlessly. Do not operate the appliance if parts are
damaged or when the controls do not function fault-
lessly. If necessary, your electric appliance should be
repaired at a Hilti repair center.
●Repairs to the electrical section of the appliance may
be carried out only by trained electrical specialists.
8.3 Care of the battery
●Keep the electrical contacts free from dust, oil and
grease. If necessary, use a clean cloth to clean the
contact surfaces.
●In the event of battery capacity dropping below an
acceptable level after a long period of use, we rec-
ommend that the battery is returned to Hilti for a diag-
nostic check.

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9. Disposal
-CAUTION-
The following may occur if the equipment is disposed of incorrectly:
●Toxic fumes, which may present a health hazard, are released when plastic parts are burned.
●Batteries may leak when damaged or heated significantly, resulting in poisoning, burns, acid burns or envi-
ronmental pollution.
●Incorrect disposal may permit unauthorized persons to use the equipment in ways other than as directed. In
doing so, they may injure themselves or third parties, or cause environmental pollution.
Most of the materials from which Hilti appliances are manufactured can be recycled. The materials must be cor-
rectly separated before they can be recycled. In many countries, Hilti has already made arrangements for taking
back your old appliances for recycling. Please ask your Hilti customer service department or Hilti sales repre-
sentative for further information. Should you wish to return the appliance yourself to a disposal facility for recy-
cling, proceed as follows: Dismantle the appliance as far as possible without the need for special tools.
Separate the individual parts as follows:
Parts / assembly Main material Recycling
Outer housing Plastic / synthetic rubber Plastics recycling
Electronics Various Electronics scrap
Supply cord Copper, synth. rubber sheathed Scrap metal
Battery Nickel metal-hydride *
Battery Nickel-cadmium *
Screws, small parts Steel Scrap metal
*Dispose of batteries in accordance with national regulations or return them
toHilti for disposal.
10. Warranty
Hilti warrants that the product supplied is free of defects
in material and workmanship. This warranty is valid as
long as the product is operated and handled correctly,
cleaned and serviced properly and in accordance with the
Hilti operating instructions, all warranty claims are made
within 12 months (unless other mandatory national reg-
ulations prescribe a longer minimum period) from the date
of 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 product.
This warranty provides the free-of-charge repair or replace-
ment of defective parts only. Parts requiring repair or
replacement as a result of normal wear and tear are not
covered by this warranty.
Additional claims are excluded, unless stringent
national rules prohibit such exclusion. In particular,
Hilti is not obligated for direct, indirect, incidental or
consequential damages, losses or expenses in con-
nection with, or by reason of, the use of, or inability to
use the product for any purpose. Implied warranties of
merchantability or fitness for a particular purpose are
specifically excluded.
Send the product and/or related parts immediately upon
discovery of a defect to the local Hilti marketing organi-
sation for repair or replacement.
This constitutes Hilti’s entire obligation with regard to
warranty and supersedes all prior or contemporaneous
comments and oral or written agreements concerning
warranties.

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11. EC declaration of conformity
We declare, on our sole responsibility, that this product
complies with the following standards or standardisation
documents: 73/23/EWG, 89/336/EWG, EN 60335-1,
EN 60335-2-29, EN 55014-1, EN 55014-2, EN 61000-
3-2, EN 61000-3-3.
The C 7/36-ACS also complies with the following stan-
dards or standardization documents: 1999/5/EG,
EN 300330, EN 301489.
Designation: Battery charger
Type: C 7/24 or C 7/36-ACS
Year of design: 2003
Hilti Corporation
Ronald Fehlmann Dr. Heinz-Joachim Schneider
BU Leiter Cutting and Sanding BA Leiter Light Duty Systems
April 2003 April 2003