Hilti WSR 18-A User manual

WSR 18-A
Operating instructions en
Mode d’emploi fr
Manual de instrucciones es
Manual de instruções pt
Printed: 08.07.2013 | Doc-Nr: PUB / 5071341 / 000 / 02

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This Product is Certified
Ce produit est certifié
Este producto esta certificado
Este produto está certificado
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ORIGINAL OPERATING INSTRUCTIONS
WSR 18‑A cordless reciprocating saw
It is essential that the operating instructions
are read before the power tool is operated for
the first time.
Always keep these operating instructions to-
gether 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 1
2Description 2
3 Spare parts 3
4 Accessories 3
5 Technical data 4
6 Safety instructions 4
7Beforeuse 7
8 Operation 8
9 Care and maintenance 9
10 Troubleshooting 10
11 Disposal 11
12 Manufacturer’s warranty - tools 11
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 oper-
ating instructions.
In these operating instructions, the designation “the
power tool” always refers to the WSR 18-A cordless
reciprocating saw.
Parts and operating controls 1
@Blade holder
;Control switch
=Transport lock
%Type identification plate
&Battery
(Forward gripping area (hand guard)
)AVR contact shoe
+Saw blade
1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
seriousbodilyinjuryorfatality.
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.
NOTE
Draws attention to an instruction or other useful informa-
tion.
1.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Warning:
electricity
Warning: hot
surface
Warning:
caustic
substances
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Obligation signs
Wear eye
protection
Wear a hard
hat
Wear ear
protection
Wear
protective
gloves
Wear
breathing
protection
Symbols
Volts Direct
current
Strokes per
minute
Read the
operating
instructions
before use
Return waste
material for
recycling.
Stroke rate Unlocked
Locked
Location of identification data on the power tool
The type designation and serial number can be found
on the type identification plate on the machine or tool.
Makeanoteofthisdatainyouroperatinginstructions
and always refer to it when making an enquiry to your
Hilti representative or service department.
Type:
Generation: 01
Serial no.:
2 Description
2.1 Use of the product as directed
The WSR 18-A is a cordless reciprocating saw for professional use. It is designed to be used for cutting wood,
wood-like materials, metals and plastics. The power tool is suitable for use by right or left-handed persons. An
ergonomically designed grip with synthetic rubber covering provides a comfortable, secure hold and makes the power
tool less tiring to use.
The power tool is designed for two-handed operation.
Possible fields of use: Rescue services, public authorities, agriculture and forestry, construction sites, workshops,
renovation, conversion and new construction, metal construction, timber construction, plumbing, heating and air
conditioning system installation in which the types of cutting work listed above are carried out.
Do not use the power tool to cut bricks, concrete, cellular concrete, natural stone or tiles.
Do not use the power tool to cut pipes which still contain liquids.
Do not saw into unknown materials.
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 incorrectlybyuntrainedpersonnelorwhenusednot
as directed.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
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Working on materials hazardous to the health (e.g. asbestos) is not permissible.
Nationally applicable industrial safety regulations must be observed.
Thepowertoolmaybeusedonlyinadryenvironment.
Do not use the power tool where there is a risk of fire or explosion.
Do not use the battery as a power source for other unspecified appliances.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
Modification of the power tool or tampering with its parts is not permissible.
2.2 Switches
Control switch
Safety lock
2.3 Grips
Vibration-absorbing grip
2.4 Items supplied as standard
1 Power tool
1 Operating instructions
1 Hilti toolbox
2.5 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%
-LED 1 Battery overheated
3 Spare parts
AVR contact shoe 1
)AVR contact shoe 408847
4 Accessories
Designation Short designation Description
Saw blades with ½" connection end
Charger for Li-ion batteries C 4/36, C 4/36‑ACS or
C 4/36‑ACS TPS
Charger for Li-ion batteries C 4/36‑90
Charger for Li-ion batteries C 4/36‑350
Battery B 18/3.3 Li‑Ion
Battery B 18/2.6 Li‑ion
Battery B 18/1.6 Li‑Ion
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5 Technical data
Right of technical changes reserved.
Power tool WSR 18‑A
Rated voltage (DC voltage) 21.6 V
Weight in accordance with EPTA procedure 01/2003 3.8 kg (8.38 lb)
Dimensions (L x W x H) 492 mm (19.37") x 96 mm (3.78") x 196 mm (7.72")
Stroke rate 0…3,000/min
Stroke 28 mm (1.1")
Blade holder Keyless, for ¹/₂" standard blades
Battery B 18/3.3 Li‑Ion B 18/2.6 Li‑Ion B 18/1.6 Li‑Ion
Rated voltage 21.6 V 21.6 V 21.6 V
Capacity 3.3 Ah 2.6 Ah 1.6 Ah
Energy capacity 71.28 Wh 56.16 Wh 34.56 Wh
Weight 0.78 kg (1.72 lb) 0.78 kg (1.72 lb) 0.48 kg (1.06 lb)
Type of cell Li‑Ion Li‑Ion Li‑Ion
Number of cells 12 12 6
Temperature monitoring
during charging
Yes Yes Yes
Temperature monitoring
during discharging
Yes Yes Yes
6 Safety instructions
NOTE
The safety rules in section 6.1 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.
6.1 General power tool safety warnings
a)
WARNING
Read all safety warnings and instructions. Failure
to follow the warnings and instructions may result
in electric shock, fire and/or serious injury. Save all
warnings and instructions for future reference.
The term “power tool” in the warnings refers to
your mains-operated (corded) power tool or battery-
operated (cordless) power tool.
6.1.1Workareasafety
a) Keep work area clean and well lit. Cluttered or 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.
c) Keep children and bystanders away while operat-
ing a power tool. Distractions can cause you to lose
control.
6.1.2 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. Un-
modified 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 condi-
tions. Water entering a power tool will increase the
risk of electric shock.
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
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a cord suitable for outdoor use reduces the risk of
electric shock.
f) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD reduces the risk
of electric shock.
6.1.3 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 personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personal injuries.
c) Prevent unintentional starting. Ensure the switch
is in the off‐position before connecting to power
source and/or battery pack, picking up or carrying
the tool. Carrying power tools with your finger on the
switch or energising power tools that have the switch
on invites accidents.
d) Remove any adjusting key or wrench before turn-
ing the power tool on. Awrenchorakeyleftat-
tached 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 dust
collection can reduce dust-related hazards.
6.1.4 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
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
d) Store idle power tools out of the reach of chil-
dren 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 main-
tained 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 taking into
account the working conditions and the work to
be performed. Use of the power tool for opera-
tions different from those intended could result in a
hazardous situation.
6.1.5 Battery tool use and care
a) Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used
with another battery pack.
b) Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
c) 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.
d) Under abusive conditions, liquid may be ejected
from the battery, avoid contact. If contact acci-
dentally occurs, flush with water. If liquid contacts
eyes, additionally seek medical help. Liquid ejected
from the battery may cause irritation or burns.
6.1.6 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.
6.2 Additional safety instructions
6.2.1 Personal safety
a) Hold power tool by insulated gripping surfaces,
when performing an operation where the cutting
accessory may contact hidden wiring. Cutting ac-
cessory contacting a "live" wire may make exposed
metal parts of the power tool "live" and could give
the operator an electric shock.
b) Use clamps or another practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against your body leaves
it unstable and may lead to loss of control.
c) Wear ear protectors. Exposure to noise can cause
hearing loss.
d) Always hold the power tool securely with both
hands on the grips provided. Keep the grips dry,
clean and free from oil and grease.
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e) Breathing protection must be worn if the power
tool is used without a dust removal system for
work that creates dust.
f) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
g) Operate the power tool only as intended and when
it is in faultless condition.
h) Wear protective gloves when changing insert
tools as the insert tools get hot during use.
i) Switch the power tool on only after bringing it into
the working position.
j) Engage the safety lock before storing or trans-
porting the tool.
k) Avoid unintentional starting. Never carry the
power tool with your finger on the control
switch. Remove the battery from the power
tool during work breaks, before carrying out
maintenance, before changing cutting tools and
before transporting the power tool.
l) Children must be instructed not to play with the
power tool.
m) The power tool is not intended for use by children,
by debilitated persons or those who have received
no instruction or training.
n) WARNING: Some dust created by grinding, sand-
ing, cutting and drilling contains chemicals known
to cause cancer, birth defects, infertility or other
reproductive harm; or serious and permanent res-
piratory or other injury. Some examples of these
chemicals are: lead from lead-based paints, crys-
talline silica from bricks, concrete and other masonry
products and natural stone, arsenic and chromium
from chemically-treated lumber. Your risk from these
exposures varies, depending on how often you do
this type of work. To reduce exposure to these
chemicals, the operator and bystanders should
work in a well-ventilated area, work with ap-
proved safety equipment, such as respiratory pro-
tection appropriate for the type of dust generated,
and designed to filter out microscopic particles
and direct dust away from the face and body.
Avoid prolonged contact with dust. Wear protec-
tive clothing and wash exposed areas with soap
and water. Allowing dust to get into your mouth,
eyes,ortoremainonyourskinmaypromoteabsorp-
tion of harmful chemicals.
6.2.2 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.
6.2.3 Special safety instructions for reciprocating
saws
a) Always guide the power tool away from your body
when working with it.
b) Neverpositionyourhandsaheadoforonthesaw
blade.
c) Never cut into unknown materials and keep the
line of cut above and below the workpiece free of
obstacles. If the saw blade strikes an object it may
cause the power tool to kick back.
d) Apply moderate pressure and set the power tool
to a suitable stroke rate when using the pipe-
cutting adapter (accessory), especially when cut-
ting large-diameter pipes. This will help to prevent
the power tool overheating.
e) The power tool must be pressed against the work-
piece until the AVR contact shoe makes firm con-
tact. This helps ensure maximum safety and good
performance.
f) Wear suitable protective clothing to protect you
from hot cuttings.
g) Never use the power tool without a fully functional
hand guard.
h) Before beginning the work, check the hazard clas-
sification of the dust that will be produced. Use
an industrial vacuum cleaner with an officially
approved protection classification in compliance
with locally applicable dust protection regula-
tions.
i) WARNING!When cutting through pipes, e.g. when
carrying out demolition or installation work, check
to ensure that the pipes no longer contain liq-
uids and empty them if necessary. When cutting
through pipes, hold the power tool above the level
of the pipe you are cutting through. The power
tool incorporates no protective measures to prevent
ingress of water or dampness. Liquids running out of
pipes may cause a short circuit in the power tool.
j) Do not use the power tool to cut bricks, concrete,
cellular concrete, natural stone or tiles.
k) Do not attempt to cut material thicker than the
specified max. thickness for which the saw is
designed and do not use unsuitable saw blades
(reciprocating saw blades of the wrong size or not
equipped with a ¹⁄₂" connection end).
l) The transport lock should always be engaged
when the power tool is not in use.
6.2.4 Battery 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) Do not disassemble, squash or incinerate batter-
ies and do not subject them to temperatures over
80°C. A risk of fire, explosion or injury through con-
tact 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).
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f) Use only the Hilti chargers listed under “Acces-
sories”.
g) Ensure that the outer surfaces of the battery are
clean and dry before inserting it in the corre-
sponding charger. Read the operating instruc-
tions for the charger for further information about
the charging procedure.
h) If the battery gets too hot to touch, this may indicate
that it is faulty. Place the tool in a location where
it can be kept under observation, well away from
flammable materials, and allow it to cool down.
Contact Hilti Service after the battery has been
allowed to cool.
6.2.5 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.
6.2.6 Work area safety
Ensure that the workplace is well ventilated. Exposure
to dust at a poorly ventilated workplace may result in
damage to the health.
6.2.7 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat, ear protec-
tion, protective gloves and breathing protection while
the tool is in use.
7Beforeuse
DANGER
Wear protective gloves when changing insert tools as
theinserttoolsgethotduringuse.
7.1 Changing the saw blade
CAUTION
Wear protective gloves. The cutting edges of the saw
blade teeth are sharp. The cutting edges may present a
risk of injury.
7.1.1 Fitting the saw blade 23
1. Engage the transport lock.
2. Pull the battery out of the power tool.
3. Check that the connection end of the blade is clean
and lightly greased. Clean it and grease it if neces-
sary.
NOTE Use only saw blades equipped with a ¹⁄₂"
connection end (fig. 3).
4. Turn the blade holder locking sleeve counterclock-
wiseandholditinthisposition.
5. Push the saw blade into the blade holder from the
front end of the tool.
6. Release the locking sleeve and allow it to return to
its original position with a “click”.
7. Grip and pull the saw blade to check that it is locked
in position.
7.1.2 Removing the saw blade 4
1. Engage the transport lock.
2. Pull the battery out of the power tool.
3. Turn the blade holder locking sleeve counterclock-
wiseandholditinthisposition.
4. Pull the blade forward out of the blade holder.
5. Release the locking sleeve and allow it to move back
to its original position.
7.2 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 per-
formance 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.
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7.3 Charging the battery
DANGER
Use only the Hilti batteries and Hilti chargers listed
under “Accessories”.
7.3.1 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.
7.3.2 Recharging a battery
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.
Li-ion batteries are ready for use at any time, even when
only partly charged. Charging progress is indicated by
the LED display (see charger operating instructions).
7.4 Fitting the battery 5
DANGER
Use only the Hilti batteries and Hilti chargers listed
under “Accessories”.
CAUTION
Check that the terminals on the battery and in the
power tool are free from foreign objects before in-
serting the battery in the 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.
Check that the battery is seated securely in the
power tool.
7.5 Removing the battery 6
1. Press both battery release buttons.
2. Pull the battery out of the power tool toward the
rear.
7.6 Transport and storage of battery packs
Pull the battery pack out of the locked position (working
position) and move it into the first click-stop position
(transport position).
If you disconnect a battery pack from the power tool
for transport or storage, make sure that the contacts of
the battery pack are not short-circuited. Remove loose
metal parts such as screws, nails, clamps, loose screw
bits, wires or metal swarf from the case, toolbox or
transport container, or prevent these parts from coming
into contact with the battery packs.
Observe national and international transport regulations
when shipping battery packs (transportation by road, rail,
sea or air).
8Operation
NOTE
To ensure good cutting performance and minimize stress
on the power tool, use only saw blades that are in good
condition.
CAUTION
Do not overload the power tool. It will work more
efficiently and more safely within its intended perfor-
mance range.
CAUTION
Wear protective glasses and a dust mask. The sawing
operation swirls up dust and wood chips into the air. The
dust and wood chips may be harmful to the eyes and
respiratory system.
CAUTION
Dusts are hazardous to the health and can cause respi-
ratory or skin diseases and allergic reactions.
WARNING
Certain dusts are considered to be carcinogenic (cause
cancer). These include mineral dust as well as oak and/or
beech wood dust, particularly in conjunction with addi-
tional substances used for the treatment of wood (chro-
mate, wood preservatives).
CAUTION
Wear ear protectors. The power tool and the sawing
operation generate noise. Exposure to noise can cause
hearing loss.
CAUTION
Wear protective gloves. The cutting edges of the saw
blade teeth are sharp. The cutting edges may present a
risk of injury.
CAUTION
Always guide the power tool away from your body
when working with it.
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CAUTION
Do not lift the power tool away from the workpiece
until it has stopped completely.
CAUTION
Lay the power tool down only when it has come to a
complete stop.
CAUTION
Thesawbladegetshotduringintensiveuse.Wear pro-
tective gloves. Contact with the saw blade presents a
risk of burning injury.
8.1 Safe operation 789
DANGER
The power tool must be pressed against the work-
piece until the AVR contact shoe makes firm contact.
This helps ensure maximum safety and good perfor-
mance.
DANGER
Always use saw blades that project beyond the work-
piece over the entire length of the blade stroke. This
will help to avoid violent kickback.
WARNING
Always hold the power tool securely with both hands
on the grips provided. Never use the power tool with-
out a fully functional hand guard. The blade holder
presents a risk of injury.
8.2 Switching on
1. Disengage the transport lock.
2. Press the control switch.
8.3 Switching off
1. Release the control switch.
2. Engage the transport lock.
8.4 Plunge cutting 
CAUTION
Apply the appropriate safety measures at the rear of
the workpiece when plunge sawing. Use only suitable
saw blades (length as short as possible).
Use the plunge cutting technique only on soft materials.
It takes a little practice to start the cut, without previously
drilling a starting hole, by plunging the blade into the
surface while the power tool is running. This is possible
only with short saw blades. For plunge cutting, the power
tool may be used either in the normal position or in the
reversed position.
1. Bring the forward edge of the AVR contact shoe into
contact with the surface of the material to be cut.
2. Disengage the transport lock.
3. Press the control switch.
4. Press the forward edge of the contact shoe against
the surface and begin the plunge action by slowly
increasing the angle of attack. To prevent stalling, it
is important that the power tool is running before the
saw blade is brought into contact with the surface.
5. Once the saw blade has penetrated right through
the material, bring the power tool into the normal
working position (AVR contact shoe flush with the
workpiece) and then continue sawing along the cut-
ting line.
9 Care and maintenance
CAUTION
Before beginning cleaning, remove the battery from
the power tool in order to prevent unintentional start-
ing.
9.1 Care and maintenance
Keep the blades clean, especially their connection ends,
in order to ensure trouble-free operation of the blade
holder.
Keep the blade holder clean.
The power tool has been adequately lubricated during
assembly. After a long period of heavy use it is recom-
mended that the power tool is inspected by Hilti. This
will help to extend the life of the power tool and avoid
unnecessary repair costs.
9.2 Care of the power tool
CAUTION
Keep the power tool, especially its grip surfaces,
clean and free from oil and grease. Do not use clean-
ing agents which contain silicone.
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
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running water for cleaning. This may negatively affect the
electrical safety of the power tool.
9.3 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 discharging
the battery as soon as a significant drop in performance
is noticed.
NOTE
If use of the power tool continues, further battery dis-
charge 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 negative
effect on battery life.
- Charging can be started at any time with no negative
effect on 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.
9.4 Maintenance
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.
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.
9.5 Changing the AVR contact shoe 
The AVR contact shoe can be changed when required.
Before changing the contact shoe, engage the transport
lock and remove the battery from the power tool.
1. Engage the transport lock.
2. Remove the battery.
3. Remove the saw blade.
4. Pull the rectangular plastic pin forward. It is located
between the two AVR contact shoe guide pins.
5. Pull the AVR contact shoe out.
6. Push the rectangular plastic part back into its original
position.
7. Grease the AVR contact shoe lightly and insert it
fully in the guides.
8. Check to ensure that the contact shoe engages
correctly.
9.6 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.
10 Troubleshooting
Fault Possible cause Remedy
The power tool doesn’t start. The control switch is defective. Have it checked by a trained electrical
specialist and replaced if necessary.
The battery is discharged or fitted
incorrectly.
The battery must be heard to engage
with a double click or, respectively,
needs to be charged.
The transport lock is engaged. Disengage the transport lock.
The power tool doesn’t achieve
full power.
The control switch is not pressed
fully.
Press the control switch as far as it
will go.
The battery is discharged. Change the battery and recharge the
discharged battery.
The saw blade can’t be re-
moved from the blade holder.
The locking sleeve is not turned as far
as it will go.
Turn the locking sleeve as far as it will
go and remove the saw blade.
en
10
Printed: 08.07.2013 | Doc-Nr: PUB / 5071341 / 000 / 02

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2
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11 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 power tools or appliances 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 power tools or appliances for recycling. Please ask your Hilti customer service department or
Hilti representative for further information.
Batteries
Hilti Li-ion batteries contain lithium-ion cells.
Both you and Hilti bear responsibility for the recycling of worn-out batteries in keeping with
environmental protection requirements.
Do not throw worn-out batteries into household waste, a fire or water.
12 Manufacturer’s warranty - tools
Hilti warrants that the tool supplied is free of defects in
materialandworkmanship.Thiswarrantyisvalidsolong
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 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 re-
placement of defective parts only over the entire lifespan
of the tool. 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 na-
tional rules prohibit such exclusion. In particular, Hilti
is not obligated for direct, indirect, incidental or con-
sequential damages, losses or expenses in connec-
tion 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 particular 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 contemporaneous
comments and oral or written agreements concerning
warranties.
en
11
Printed: 08.07.2013 | Doc-Nr: PUB / 5071341 / 000 / 02

*408058*
408058
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 3671 | 0613 | 00-Pos. 3 | 1
Printed in China © 2013
Right of technical and programme changes reserved S. E. & O.408058 / A3
Printed: 08.07.2013 | Doc-Nr: PUB / 5071341 / 000 / 02