Hilti SC 55W User manual

*2092691*
2092691
SC 55W
Operating instructions en
ja
zh
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

꙾ ꙿ Ꚁ
ꙵ
ꙴ
ꙣ
Ꙥ
ꙥ
Ꙧ ꙧ
Ꙩ
ꙩ
Ꙫ
ꙫ
Ꙭ
꙯ꙮ꙰ ꙭ
ꙹ
ꙶ
꙳
꙲
ꙸ
ꙷ
꙱
꙼
꙽
ꚁꙻꙺ Ꚃ
1
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

ꚆꚄ ꚅ
ꚃ












PP PP























23
4
56
7
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02














w
v

v
 

w
v









w
v
v
 

w
w
w
v
v


















8
910
11
12
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

ORIGINAL OPERATING INSTRUCTIONS
SC 55W circular 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
2 Safety instructions 2
3Description 5
4 Accessories, consumables 5
5 Technical data 6
6 Operation 7
7 Care and maintenance 8
8 Troubleshooting 9
9Disposal 9
10 Manufacturer’s warranty - tools 10
11 EC declaration of conformity (original) 10
1These numbers refer to the illustrations. You can
find the illustrations at the beginning of the operating
instructions.
In these operating instructions, the designation “the
power tool” always refers to the SC 55W circular saw.
Components, operating controls and indicators 1
@Single-arm parallel guide (rip fence)
;Cutting angle presets (22.5°, 45°, 50°)
=Drive spindle lockbutton
%Auxiliary grip
&On / off switch
(Switch-on interlock
)Grip
+Supply cord
§Clamping lever for cutting depth adjustment
/Hexagon socket wrench
:Small base plate
·LED illumination
$Front clamping lever for the parallel guide
£Clamping lever for cutting angle adjustment
|Cutting depth scale
¡Hose connector (vacuum cleaner)
QGuard
WPivoting guard operating lever
ERear clamping lever for the parallel guide (only with
largebaseplate)
RPivoting guard
TDrive spindle
ZDirection-of-rotation arrow
UTwin-arm parallel guide (rip fence)
I0°cutting line indicator
O45°cutting line indicator
PCutting angle scale
ÜLarge base plate
[Clamping screw
]Clamping flange
ÆMounting flange
º0° indicator on the base plate
•1°- 50° indicator on the base plate
Guide rail adapter 2
ARear retaining lug
SFront retaining lug
D0° indicator
F1°- 50° indicator
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.
en
1
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

1.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Obligation signs
Read the
operating
instructions
before use.
Symbols
Rated speed
under no
load
Double
insulated
Saw blade
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 Safety instructions
2.1 General Power Tool Safety Warnings
a) WARNING
Read all safety warnings and all instructions. Fail-
ure 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.
2.1.1Workareasafety
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.
2.1.2 Electrical safety
a) Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any ad-
apter 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 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
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.
2.1.3 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
en
2
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

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.
2.1.4 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.
2.1.5 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.
2.2 Safety instructions for all saws
2.2.1 Cutting procedures
a) DANGER
Keep hands away from cutting area and the blade.
Keep your second hand on auxiliary handle, or
motor housing. If both hands are holding the saw,
they cannot be cut by the blade.
b) Do not reach underneath the workpiece. The guard
cannot protect you from the blade below the work-
piece.
c) Adjust the cutting depth to the thickness of the
workpiece. Less than a full tooth of the blade teeth
should be visible below the workpiece.
d) Never hold piece being cut in your hands or across
your leg. Secure the workpiece to a stable plat-
form. It is important to support the work properly to
minimize body exposure, blade binding, or loss of
control.
e) Hold the power tool by insulated gripping sur-
faces only, when performing an operation where
the cutting tool may contact hidden wiring or its
own cord. Contact with a “live” wire will also make
exposed metal parts of the power tool “live” and
could give the operator an electric shock.
f) When ripping, always use a rip fence or straight
edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.
g) Always use blades with correct size and shape
(diamond versus round) of arbour holes. Blades
that do not match the mounting hardware of the saw
will run eccentrically, causing loss of control.
h) Never use damaged or incorrect blade washers
or bolt. The blade washers and bolt were specially
designed for your saw, for optimum performance and
safety of operation.
2.2.2 Further safety instructions for all saws
Kickback causes and related warnings
kickback is a sudden reaction to a pinched, bound or
misaligned saw blade, causing an uncontrolled saw to lift
up and out of the workpiece toward the operator;
when the blade is pinched or bound tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
if the blade becomes twisted or misaligned in the cut, the
teeth at the back edge of the blade can dig into the top
surface of the wood causing the blade to climb out of the
kerf and jump back toward the operator.
Kickback is the result of saw misuse and/or incorrect
operating procedures or conditions and can be avoided
by taking proper precautions as given below.
a) Maintain a firm grip with both hands on the saw
and position your arms to resist kickback forces.
Position your body to either side of the blade, but
not in line with the blade. Kickback could cause the
saw to jump backwards, but kickback forces can be
controlled by the operator, if proper precautions are
taken.
en
3
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

b) When blade is binding, or when interrupting a
cut for any reason, release the trigger and hold
the saw motionless in the material until the blade
comes to a complete stop. Never attempt to re-
move the saw from the work or pull the saw back-
ward while the blade is in motion or kickback
may occur. Investigate and take corrective actions
to eliminate the cause of blade binding.
c) When restarting a saw in the workpiece, centre
the saw blade in the kerf and check that saw
teeth are not engaged into the material. If saw
blade is binding, it may walk up or kickback from the
workpiece as the saw is restarted.
d) Support large panels to minimise the risk of blade
pinching and kickback. Large panels tend to sag
under their own weight. Supports must be placed
under the panel on both sides, near the line of cut
and near the edge of the panel.
e) Do not use dull or damaged blades. Unsharpened
or improperly set blades produce narrow kerf causing
excessive friction, blade binding and kickback.
f) Blade depth and bevel adjusting locking levers
must be tight and secure before making cut. If
blade adjustment shifts while cutting, it may cause
binding and kickback.
g) Use extra caution when sawing into existing walls
or other blind areas. The protruding blade may cut
objects that can cause kickback.
2.2.3 Safety instructions for circular saws with
pendulum guard
Lower guard function
a) Check lower guard for proper closing before each
use. Do not operate the saw if lower guard does
not move freely and close instantly. Never clamp
or tie the lower guard into the open position. If saw
is accidentally dropped, lower guard may be bent.
Raise the lower guard with the retracting handle and
make sure it moves freely and does not touch the
blade or any other part, in all angles and depths of
cut.
b) Check the operation of the lower guard spring.
If the guard and the spring are not operating
properly, they must be serviced before use. Lower
guard may operate sluggishly due to damaged parts,
gummy deposits, or a build-up of debris.
c) Lower guard may be retracted manually only for
special cuts such as “plunge cuts” and “com-
pound cuts.” Raise lower guard by retracting
handle and as soon as blade enters the mater-
ial, the lower guard must be released. For all other
sawing, the lower guard should operate automatic-
ally.
d) Always observe that the lower guard is covering
the blade before placing saw down on bench or
floor. An unprotected, coasting blade will cause the
saw to walk backwards, cutting whatever is in its
path.Beawareofthetimeittakesforthebladeto
stop after switch is released.
2.3 Additional safety instructions
2.3.1 Personal safety
a) Modification of the machine or tampering with its
parts is not permissible.
b) Wear ear protectors. Exposure to noise can cause
hearing loss.
c) Breathing protection must be worn if the power
tool is used without a dust removal system for
work that creates dust.
d) Do not operate the power tool without the pro-
tective devices that belong to it.
e) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
f) Switch the power tool on only after bringing it into
position at the workpiece.
g) Always guide the power tool away from your body
when working with it.
h) Do not work with the power tool overhead.
i) Do not attempt to brake the tool by applying
lateral pressure to the saw blade as this may
cause kickback.
j) Do not touch the clamping flange, the clamping
screw or the saw blade while the power tool is
running.
k) The kerf must be free of obstructions. Do not saw
into screws and nails etc.
l) Never press the drive spindle lock button while
the saw blade is rotating.
m) Never direct the power tool toward persons.
n) The appliance is not intended for use by debilit-
ated persons who have received no special train-
ing. Keep the appliance out of reach of children.
o) Adjust the forward pressure applied to the tool
according to the saw blade used and the material
to be cut, so that the blade doesn’t stall.
p) Avoid overheating the tips of the saw blade teeth.
q) When cutting plastics, melting of the plastic
should be avoided.
r) In the event of any damage to the power tool or
blade, disconnect the supply cord plug from the
power outlet immediately. Do not operate the tool
when parts are damaged or when the controls do
not function correctly. If necessary, have the tool
repaired at an authorized Hilti service center.
s) 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. Splintering material presents a risk of injury to
the eyes and body.
t) 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.
u) Dust from materials, such as paint containing lead,
some wood species, concrete / masonry / stone con-
taining silica, and minerals as well as metal, may be
harmful. Contact with or inhalation of the dust may
en
4
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

cause allergic reactions and/or respiratory or other
diseases to the operator or bystanders. Certain kinds
of dust are classified as carcinogenic such as oak and
beech dust, especially in conjunction with additives
for wood conditioning (chromate, wood preservative).
Material containing asbestos must only be treated by
specialists. Wheretheuseofadust-extraction
device is possible it shall be used. To achieve a
high level of dust collection, use a suitable dust
extractor. When indicated wear a respirator ap-
propriate for the type of dust generated. Ensure
that the workplace is well ventilated. Follow na-
tional requirements for the materials you want to
work with.
v) The cutting depth set should always be approx.
5 to 10 mm greater than the thickness of the
material to be cut.
2.3.2 Electrical safety
a) Check the power tool’s supply cord at regular
intervals and have it replaced by a qualified spe-
cialist if found to be damaged. If the machine’s
supply cord is damaged it must be replaced with
a specially-prepared and approved supply cord
available from Hilti Customer Service. Check ex-
tension cords at regular intervals and replace
them if found to be damaged. Do not touch the
supply cord or extension cord if it is damaged
while working. Disconnect the mains plug from
the power outlet. Damaged supply cords or exten-
sion cords present a risk of electric shock.
b) 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.
3 Description
3.1 Use of the product as directed
The power tool is a hand-guided circular saw.
The power tool is designed for cutting flat-surfaced wood
or wood-like materials, plastics, gypsum plasterboard,
gypsum fiberboard and composites up to a cutting depth
of 55 mm and for making bevel cuts at angles between
0° and 50°.
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.
The power tool may be operated only when connected
to a power supply providing a voltage and frequency
in compliance with the information given on its type
identification plate.
Observe the national health and safety requirements.
Useofsawbladesnotincompliancewiththegiven
specification (e.g. diameter, speed of rotation, thickness)
or use of cutting and grinding discs or blades made from
high-alloy steel (HSS steel) is not permissible due to risk
of breakage.
Sawing metals is not permissible.
To avoid the risk of injury, use only genuine Hilti ac-
cessories and insert tools.
3.2 Standard equipment includes
1Powertool
1Sawblade
1 Operating instructions
1 Hexagon socket wrench
1 Parallel guide (rip fence)
1 Guide rail adapter (optional)
4 Accessories, consumables
NOTE
Accessories can be found at your Hilti Center or online at www.hilti.com.
Spare parts
Designation
Mounting flange
Clamping flange
Clamping screw
en
5
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

5 Technical data
Right of technical changes reserved.
NOTE
When powered by a generator or transformer, the generator or transformer’s power output must be at least twice the
rated input power shown on the rating plate of the power tool. The operating voltage of the transformer or generator
must always be within +5% and -15% of the rated voltage of the power tool.
Rated voltage 100 V 110 V 220‑240 V
Rated power input 1,100 W 1,100 W 1,200 W
Rated current input 11 A 10 A 5…5.5 A
Mains frequency 50…60 Hz 50…60 Hz 50…60 Hz
NOTE
The electric supply voltage may drop briefly when this power tool is started, especially if the electric supply network is
of poor quality. These voltage drops may affect other appliances (e.g. lighting may flicker). Disturbances of this kind
are not to be expected in supply networks with an impedance of less than 0.454 Ω. (If necessary, please contact your
local electricity supply company for further information).
Power tool SC 55W
Weight in accordance with EPTA procedure 01/2003,
with small base plate
4.5 kg
Weight in accordance with EPTA procedure 01/2003,
withlargebaseplate
4.7 kg
Specified blade diameter 160…165 mm
Saw blade disc thickness 1.1…1.5 mm
Saw blade arbor size 16 mm / 20 mm
Cutting depth Cutting angle 0°: 55 mm
Cutting angle 45°: 41 mm
Cutting angle 50°: 37 mm
Speed under no load 5,500/min
NOTE
The sound pressure and vibration values given in these instructions have been measured in accordance with a
standardized test and may be used to compare one electric tool with another. They may be used for a preliminary
assessment of exposure. The data given represents the main applications of the electric tool. However, if the electric
tool is used for different applications, with different accessories or is poorly maintained, the data may vary. This may
significantly increase exposure over the total working period. An accurate estimation of exposure should also take into
account the times when the tool is switched off, or when it is running but not actually being used for a job. This may
significantly reduce exposure over the total working period. Identify additional safety measures to protect the operator
from the effects of noise and/or vibration, for example: maintain the electric tool and accessories, keep the hands
warm, organization of work patterns.
Noise information for the SC 55W (measured in accordance with EN 60745-2-5):
Typical A-weighted sound power level, LWA 100 dB (A)
Typical A-weighted emission sound pressure level, LpA 89 dB (A)
Uncertainty for the given sound level, K 3 dB (A)
Total vibration (vector sum of three directions), measured in accordance with EN 60745
Sawing wood, ahW 2.2 m/s²
Uncertainty, K 1.5 m/s²
Other information about the power tool
Protection class Protection class II (double insulated), see rating plate
en
6
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

6Operation
DANGER
Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing the tool. Such preventive safety measures
reduce the risk of starting the tool accidentally.
DANGER
Do not switch the power tool on if the saw blade,
the blade guard or the pivoting guard are not fitted
correctly.
CAUTION
Check all safety devices each time before using the
saw. Open the pivoting guard fully and check that the
guard automatically returns to the fully closed position
when released. Clean the pivoting guard if necessary
or have the power tool repaired by Hilti Service if it
malfunctions.
6.1 Changing the saw blade
CAUTION
Wear protective gloves when changing saw blades.
The saw blade, clamping flange and clamping screw get
hot and the cutting edges of the saw blade are sharp.
CAUTION
Checkthatthebladetobefittedcomplieswiththe
technical requirements and that it is well sharpened. A
sharp saw blade is an essential requirement for a perfect
cut.
6.1.1 Removing the saw blade 3
1. Insert the hex. socket wrench in the saw blade
clamping screw.
2. Press the drive spindle lockbutton and hold it in this
position.
3. Turn the saw blade clamping screw with the hex.
socket wrench until the spindle lockbutton engages
fully.
4. Release the clamping screw by turning the hex.
socket wrench further in the direction of the
direction-of-rotation arrow.
5. Remove the clamping screw from the outer clamping
flange.
6. Open the pivoting guard by swinging it to the side
and then remove the saw blade.
NOTE If necessary, the mounting flange can be
removed for cleaning.
6.1.2 Fitting the saw blade 4
1. Clean the mounting flange and the clamping flange.
2. Fit the outer clamping flange the right way round
(i.e. facing the right direction).
3. Open the pivoting guard.
4. CAUTION Observe the direction-of-rotation ar-
row on the saw blade and on the power tool.
They must correspond.
Fit the new saw blade.
5. Fit the outer clamping flange the right way round.
6. Insert the clamping screw.
7. Insertthehex.socketwrenchinthesawblade
clamping screw.
8. Press the drive spindle lockbutton.
9. Secure the clamping flange with the blade clamping
screw by turning the hex. socket wrench in the
direction opposite to that of the direction-of-rotation
arrow.
The spindle lockbutton engages as you do so.
10. Before using the power tool, check that the saw
blade is correctly seated and tightened securely.
6.2 Adjusting the cutting depth 5
NOTE
The cutting depth set should always be approx. 5 to 10
mm greater than the thickness of the material to be cut.
NOTE
The depth setting can be read from the scale and pointer
at the rear of the blade guard.
6.3 Adjusting the cutting angle 6
The cutting angle preset makes it easy to set the max-
imum angle (22.5°, 45°, 50°).
1. Release the cutting angle adjustment clamping
lever.
2. Pivot the base plate to the 0° position.
3. Set the preset angle pointer to the desired maximum
angle.
4. Pivot the base plate to the desired angle.
5. Tighten the cutting angle adjustment clamping lever.
6.4 Sawing along a line 7
NOTE
Secure the workpiece to prevent movement.
NOTE
Position the workpiece so that the saw blade is free to
rotate beneath it.
NOTE
Check to ensure that the on / off switch on the power
tool is in the “off” position.
NOTE
Position the forward section of the saw’s base plate on
the workpiece but do not bring the blade into contact
with the workpiece.
1. While pressing the switch-on interlock, switch the
power tool on by pressing the on/off button.
2. Guide the power tool along the cutting line on the
workpiece at a suitable speed.
en
7
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

6.5 Fitting and using the parallel guide (rip
fence) 8
The parallel guide (rip fence) can be used to make accur-
atecutsalongtheedgeofaworkpieceortocutstripsof
equal width.
The parallel guide (single-arm/twin-arm) can be fitted on
either side of the base plate. The twin-arm parallel guide
can be used only with the large base plate. When fitting
the parallel guide, check that it is fitted the right way
round (i.e. facing the right direction).
6.6 Using the saw on the guide rail
NOTE
When using a saw with a small base plate, please use a
guide rail adapter that fits the guide rail.
6.6.1 Fitting or removing the saw to/from the guide
rail adapter (small base plate) 9
The parallel guide (rip fence) must be removed before the
guide rail adapter can be used.
To remove the saw, pull the front retaining lug forward
slightly and lift the saw up out of the guide rail adapter.
6.6.2 Longitudinal cuts at 0° 
Place the saw on the guide rail with the groove marked
“0°” on the rib on the rail.
6.6.3 Longitudinal cuts at angles of 1° - 50° 
CAUTION
The saw must be engaged in the correct groove. If the
saw is engaged in the wrong groove, the saw blade will
collide with the guide rail.
Place the saw on the guide rail with the groove marked
“1°- 50°” on the rib on the rail.
6.6.4 Using the saw on the guide rail 
1. Secure the guide rail from below with two screw
clamps.
NOTE The saw must be placed on the guide rail in
theareabeforetheworkpiece.
2. CAUTIONTakecaretoensurethatthesawblade
is not in contact with the workpiece.
Place the saw on the guide rail in the saw mounting
area of the rail (a short distance before the starting
point of the cut). Open the pivoting guard manually
when making longitudinal cuts (ripping) at a cutting
angle of 20°-50°.
3. Switch the power tool on.
4. Push the saw steadily across the workpiece.
At a cutting angle of 0°-20° the pivoting guard opens
automatically when it makes contact with the lateral
actuating edge. It closes again automatically when
the saw leaves the end of the guide rail.
6.7 Using the saw with a dust and chip removal
system
The circular saw is equipped with a hose connector
suitable for use with common types of vacuum cleaner
hose. In order to connect the vacuum cleaner hose to the
saw, use of a suitable adapter may be necessary.
6.8 Using the saw without a dust and chip removal
system
Check that the sawdust is ejected without obstruction.
If necessary, the direction of ejection can be altered by
turning the hose connector.
6.9 Procedure when sawdust channel is blocked
1. Disconnect the supply cord plug from the power
outlet.
2. Clean the chip / dust channel.
NOTE Remove the saw blade if necessary.
3. Check for misalignment or binding of moving parts,
breakage of parts and any other condition that may
affect the power tool’s operation.
7 Care and maintenance
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.
7.1 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.
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.
7.2 Cleaning the safety devices
1. Remove the saw blade before cleaning the safety
devices.
2. Clean the safety devices carefully with a dry brush.
3. Useasuitabletooltoremovedepositsorwood
chips from the inside surfaces of the safety devices.
4. Fit the saw blade.
en
8
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

7.3 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.
To check the pivoting guard, open the guard fully by
moving the guard operating lever.
The pivoting guard must close quickly and completely
when the guard operating lever is released.
8 Troubleshooting
Fault Possible cause Remedy
The power tool doesn’t achieve
full power.
The extension cord is too long or its
gauge is inadequate.
Use an extension cord of an
approved length and / or of adequate
gauge.
The voltage provided by the electric
supply is too low.
Connect the power tool to a different
power source.
The tool doesn’t work. Interruption in the electric supply. Plug in another electric appliance and
check whether it works.
Electrical fault. Switch the tool off immediately and
contact Hilti Service.
The carbon brushes are worn. Have it checked by a trained electrical
specialist and replaced if necessary.
The on/off button cannot be
pressed, i.e. the button is
locked.
Not a fault (safety function). Press the switch-on interlock.
No / reduced suction power. Chip ejector channel blocked. Clean out the chip ejector channel.
The pivoting guard doesn’t
close.
Dirt or dust. Clean the parts and contact Hilti Ser-
vice if the problem persists.
The power tool vibrates
strongly.
The saw blade is fitted incorrectly. Fit the saw blade correctly.
See section: 6.1.2 Fitting the saw
blade 4
9 Disposal
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.
For EC countries only
Disposal of electric tools together with household waste is not permissible.
In observance of the European Directive on waste electrical and electronic equipment and its imple-
mentation in accordance with national law, electrical appliances that have reached the end of their life
must be collected separately and returned to an environmentally compatible recycling facility.
en
9
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

10 Manufacturer’s warranty - tools
Please contact your local Hilti representative if you have
questions about the warranty conditions.
11 EC declaration of conformity (original)
Designation: Circular saw
Type: SC 55W
Generation: 01
Year of design: 2015
We declare, on our sole responsibility, that this product
complies with the following directives and standards:
until 19th April 2016: 2004/108/EC, from 20th April 2016:
2014/30/EU, 2006/42/EC, 2011/65/EU, EN 60745‑1,
EN 60745‑2‑5, EN ISO 12100.
Hilti Corporation, Feldkircherstrasse 100,
FL‑9494 Schaan
Paolo Luccini Tassilo Deinzer
Head of BA Quality and Process Man-
agement
Executive Vice President
Business Area Electric Tools & Ac-
cessories
Business Unit Power
Tools & Accessories
03/2015 03/2015
Technical documentation filed at:
Hilti Entwicklungsgesellschaft mbH
Zulassung Elektrowerkzeuge
Hiltistrasse 6
86916 Kaufering
Deutschland
en
10
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02

*2092691*
2092691
Hilti Corporation
LI-9494 Schaan
Tel.: [phone]
Fax: [phone]
www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan
Pos. 8 | 20150511
Printed: 21.05.2015 | Doc-Nr: PUB / 5223412 / 000 / 02