Hilti SC 70W-A Original Operating Instructions

SC 70W-A

Operating instructions en

Manual de instrucciones es

Manual de instruções pt

Brugsanvisning da

Bruksanvisning sv

Bruksanvisning no

Käyttöohje 

Használati utasítás hu

Návod k obsluze cs

Návod na obsluhu sk

KulllanmaTalimatı tr

ar

Lietošanaspamācība lv

Instrukcija lt

Kasutusjuhend et

Пайдаланубойыншабасшылы

қ kk

ja

ko

zh

cn

Printed: 28.05.2015 | Doc-Nr: PUB / 5206198 / 000 / 02

Ꚁ ꚁ Ꚃ

ꙣ

Ꙥ

꙲ ꙱ ꙰ ꙯ ꙮ ꙭ Ꙭ

ꙫ

Ꙫ

ꙩ

Ꙩ

ꙧꙦ

ꙴ

ꙶ

ꙸ
ꙹ
ꙺ

ꙷ

ꙵ

꙳

ꙥ

ꙿ
꙾

꙾ Ꚅꚃ꙽꙼

ꙻ

1

Printed: 28.05.2015 | Doc-Nr: PUB / 5206198 / 000 / 02





















23

ꚅ



ꚈꚆ ꚇ

4







67

















5



















89



























w

v



10









11 12







13

w





v





w



v



14











ORIGINAL OPERATING INSTRUCTIONS

SC 70W‑A22 cordless 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 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 1
2 Safety instructions 2
3Description 5
4 Accessories, consumables 6
5 Technical data 6
6Beforeuse 7
7 Operation 8
8 Care and maintenance 9

9 Troubleshooting 10
10 Disposal 11
11 Manufacturer’s warranty - tools 11
12 EC declaration of conformity (original) 12

¡
Q
W
E
R
T

Z
U
I
O
P
Ü

1 These 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 70W-A22 cordless
circular saw.

[
]
Æ
º

•
A
S

Operating controls and indicators 1

Guide rail adapter 2

Auxiliary grip
On / off switch
Switch-on interlock
Grip
Charge status and fault display (Li-ion battery)
Release buttons with additional function (charge
status display activation)
Battery
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 (chip deflector)
Guard
Pivoting guard operating lever
Rear clamping lever for the parallel guide (only with
largebaseplate)
Pivoting guard
Drive spindle
Direction-of-rotation arrow
Twin-arm parallel guide (rip fence)
0°cutting line indicator
45°cutting line indicator
Cutting angle scale
Large base plate
Clamping screw
Clamping flange
Mounting flange
0°indicator on the base plate
1°- 50° indicator on the base plate

en

Single-arm parallel guide (rip fence)

@

Cutting angle presets (22.5°, 45°, 50°)

;

Drive spindle lockbutton

=

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.

Rear retaining lug

D

Front retaining lug

F

0° indicator

G

1°- 50° indicator

H

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 informa­tion.

1

1.2 Explanation of the pictograms and other
information

Warning signs

Symbols

en

General
warning

Obligation signs

Read the

operating
instructions
before use.

2 Safety instructions

NOTE

The safety rules in section 2.1 contain all general safety
rules for power tools which, in accordance with the
applicable standards, must be listed in the operating
instructions. Accordingly, some of the rules listed may
not be relevant to this tool.

2.1 General power tool safety warnings

a)

2.1.1Workareasafety

a) Keep work area clean and well lit. Cluttered or dark

b) Do not operate power tools in explosive atmo-

c) Keep children and bystanders away while operat-

2.1.2 Electrical safety

a) Power tool plugs must match the outlet. Never

WARNING

Read all safety warnings and all instructions. Fail-

ure to follow thewarnings and instructionsmay 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 battery­operated (cordless) power tool.

areas invite accidents.

spheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks

which may ignite the dust or fumes.

ing a power tool. Distractions can cause you to lose
control.

modify the plug in any way. Do not use any ad­apter plugs with earthed (grounded) power tools.

Warning:

caustic

substances

Rated speed

under no

load

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.:

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 orentangled cordsincrease

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

2

protection used forappropriateconditionswillreduce
personal injuries.

c) Prevent unintentional starting. Ensure the switch

is in the off‐position before connecting to power
source and/orbattery 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. Awrenchorakeyleftat­tached 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 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 acci­dentally occurs, flush with water. If liquid contacts
eyes, additionally seek medical help. Liquid ejec-

ted from the battery may cause irritation or burns.

2.1.6 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.

2.2 Safety instructions for all saws

2.2.1 Cutting procedures

a)

b) Donot reach underneath the workpiece. The guard

c) Adjust the cutting depth to the thickness of the

d) Neverhold piece being cut in your hands or across

e) Hold the power tool by insulated gripping surfaces

f) When ripping, always use a rip fence or straight

g) Always use blades with correct size and shape

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.

cannot protect you from the blade below the work­piece.

workpiece. Less than a full tooth of the blade teeth
should be visible below the workpiece.

your leg. Secure the workpiece to a stable plat­form. It is important to support the work properly to

minimize body exposure, blade binding, or loss of
control.

only, when performing an operation where the
cutting tool may contact hidden wiring. Contact

with a “live” wire will also make exposed metal parts
of the power tool “live” and could give the operator
an electric shock.

edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.

(diamond versus round) of arbour holes. Blades
that do not match the mounting hardware of the saw
will run eccentrically, causing loss of control.

en

3

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

en

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
notinlinewiththeblade.Kickback could cause the

saw to jump backwards, but kickback forces can be
controlled by the operator, if proper precautions are
taken.

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 re­move the saw from the work or pull the saw back­ward 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.
Raisethelowerguardwiththeretractinghandleand
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 “com­pound cuts.” Raise lower guard by retracting
handle and as soon as blade enters the mater­ial, the lower guard must be released. For all other

sawing, the lower guard should operate automatic­ally.

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. Be aware of the time it takes for the blade to
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) Remove the battery before storing or transporting

the tool.

h) Always guide the power tool away from your body

when working with it.

i) Do not work with the power tool overhead.
j) Do not attempt to brake the speed of the saw

blade by pressing it laterally against the work­piece or some other object.

k) Do not touch the clamping flange, the clamping

screw or the saw blade while the power tool is
running.

l) The kerf must be free of obstructions. Do not saw

into screws and nails etc.

m) Never press the drive spindle lockbutton while the

saw blade is rotating.

n) Never direct the power tool toward persons.

4

o) The appliance is not intended for use by debilit-

ated persons who have received no special train­ing. Keep the appliance out of reach of children.

p) Adjust the pressure applied to the saw blade and

the material being cut so that the blade does not
stall, possibly causing the power tool to kick back.

q) Avoid overheating the tips of the saw blade teeth.
r) When cutting plastics, melting of the plastic

should be avoided.

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) Beforebeginningthe 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 regula­tions.

u) Dust from materials, such as paint containing lead,

some wood species, concrete / masonry / stone con­taining silica, and minerals as well as metal, may be
harmful. Contact with or inhalation of the dust may
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
forwood 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 na­tional 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

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 seriousrisk of electricshock.

2.3.3 Careful handling and use of batteries

a) Observe the special guidelines applicable to the

transport, storage and use of Li-ion batteries.

b) Do not expose batteries to high temperatures and

keep them away from 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. This presents a risk of fire, explosion or injury

through contact with caustic substances.

d) 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).

e) If the battery gets hot while not in use, the battery or

the power tool/battery system may be defective. Put

the power tool/battery system in a suitable place
where it is an adequate distance from flammable
materials. Keep the system under observation
while it is cooling down and contact Hilti Service.

en

3 Description

3.1 Use of the product as directed

The power tool is a hand-held, cordless 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 70 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 incorrectlybyuntrainedpersonnelorwhenusednot
as directed.
Observe the national health and safety requirements.
Use of saw blades not in compliance with the given 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.
Do not use the battery as a power source for other unspecified appliances.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.

3.2 Standard equipment includes:

1 Power tool
1Sawblade
1 Operating instructions

5

1 Hexagon socket wrench
1 Rip fence (parallel guide)
1 Guide rail adapter (optional)

en

3.3 Additional items required for operating the tool:

A suitable battery of the specified type (see table in the Technical Data section) and a suitable battery charger from
the C 4⁄36 series. For further information about battery charging, please read the operating instructions for the battery
charger.

3.4 Lithium‑ion battery charge status

The Li-ion battery features a charge status display. The charge status is indicated by the LEDs on the battery during
charging (please refer to the operating instructions for the charger). When the battery is not in use, pressing one of the
battery release buttons or inserting the battery into the power tool causes the battery charge status to be displayed
by the four LEDs for three seconds.

LEDs light constantly LEDs blink

LED1,2,3,4
LED1,2,3
LED 1, 2
LED 1

-

NOTE

Indication of the charge status is not possible while the power tool is in operation or immediately after operation. If the
battery charge status LEDs flash, please refer to the information given in section 9. “Troubleshooting”.

-

-

-

­LED 1

Charge status C

C≧75%
50 % ≦ C < 75 %
25 % ≦ C < 50 %
10 % ≦ C < 25 %
C<10%

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

5 Technical data

Right of technical changes reserved.

Power tool

Rated voltage (DC voltage) 21.6 V
Weight in accordance with EPTA procedure 01/2003,

withlargebaseplate
Weight in accordance with EPTA procedure 01/2003,

with small base plate
Specified blade diameter 190 mm

Saw blade disc thickness 0.7…1.5 mm
Saw blade arbor size 30 mm

SC 70W‑A22

4.7 kg

4.5 kg

6

Power tool

SC 70W‑A22

Cutting depth with scale setting Bracket 0°: 70 mm

Bracket 45°: 51 mm
Bracket 50°: 45 mm

Speed under no load 3,500/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, organisation of work patterns.

Noise and vibration information for the SC 70W-A22 (measured in accordance with EN 60745-2-5):

Typical A-weighted sound power level, L

WA

Typical A-weighted emission sound pressure level., L

pA

92 dB (A)
81 dB (A)

Uncertainty for the given sound level, K 3 dB (A)

Triaxial vibration values (vibration vector sum)

Sawing in wood, a

hW

1.3 m/s²

Uncertainty (K) 1.5 m/s²

en

Battery B 22/5.2 Li‑Ion (01) B 22/3.3 Li‑Ion B 22/2.6 Li‑Ion (02)

Rated voltage 21.6 V 21.6 V 21.6 V
Capacity 5.2 Ah 3.3 Ah 2.6 Ah
Weight 0.78 kg 0.78 kg 0.48 kg

6Beforeuse

NOTE

The system switches itself off automatically when the
battery voltage is low.

NOTE

Read the operating instructions for the charger for further
information about the charging procedure.

6.1 Inserting the battery 3

CAUTION
Check that the power tool is switched off and the
switch interlock activated before fitting the battery.

CAUTION
Before inserting the battery in the power tool, check
to ensure that the battery terminals and the contacts
in the power tool are free from foreign objects.

CAUTION
A falling battery may present a risk of injury to yourself
and others.

NOTE

Check that the battery is securely seated in the tool.

6.2 Removing the battery from the power tool 4

6.3 Transport and storage of batteries

CAUTION

Fire hazard. Never transport batteries in loose, bulk form.
There is a risk of short circuiting.

Pull the battery out of the locked position (working posi­tion) and move it into the first latching position (transport
position).
Observe national and international transport regulations
when shipping batteries (transportation by road, rail, sea
or air).

7

7Operation

NOTE

If the blade has jammed, the tool will not restart by itself
whenthe pressure applied to it is removed. The switch-on
interlock and the on/off button must be pressed again.

en

DANGER
Remove the battery from the power tool before mak­ing any adjustments, before changing accessories
and before storing the power 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.

7.1 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.

7.1.1 Removing the saw blade 5

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. Removethe clamping screw from the outerclamping
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.

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 clamping screw
by turning the hex. socket wrench in the opposite
direction to 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.

7.2 Adjusting the cutting depth 7

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.

7.3 Adjusting the cutting angle 8

The cutting angle preset makes it easy to set the max­imum 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. Tightenthe cutting angle adjustment clamping lever.

7.4 Sawing along a line 9

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.

7.1.2 Fitting the saw blade 6

1. Clean the mounting flange and the clamping flange.

2. Fit the mounting flange onto the drive spindle the
right way round.

8

1. Fit the battery into the power tool.

2. If the switch-on interlock has been pressed, switch
the power tool on by pressing the on/off button.

3. Guide the saw along the cutting line on the work­piece at a suitable speed.

7.5 Fitting and using the parallel guide (rip
fence) 

The rip fence (parallel guide) can be used to make accur­atecutsalongtheedgeofaworkpieceortocutstripsof
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.

7.6 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.

Place the saw on the guide rail with the groove marked
“1°- 50°” on the rib on the rail.

7.7 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).

3. Switch the power tool on.

4. Push the saw steadily across the workpiece.
The pivoting guard opens as it contacts the actu­atingedgeatthesideoftheguiderailandsub­sequently closes at the end of the rail as the cut is
completed.

en

7.6.1 Fitting or removing the saw from the guide
rail adapter (small base plate) 

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.

7.6.2 Longitudinal cuts at 0° 

Place the saw on the guide rail with the groove marked
“0°” on the rib on the rail.

7.6.3 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.

8 Care and maintenance

WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.

7.8 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.

7.9 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.

7.10 Procedure when sawdust channel is blocked

1. Remove the battery from the power tool.

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.

not use a spray, steam pressure cleaning equipment or
running water for cleaning. This may negatively affect the
electrical safety of the power tool.

8.1 Care of the power tool

CAUTION
Keep the power tool, especially its grip surfaces,
clean and free from oil and grease. Do not use clean­ing 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

8.2 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.

9

8.3 Care of the Li‑ion battery

NOTE

Battery performance drops at low temperatures.

NOTE

Store the battery in a cool and dry place.

en

In order to achieve maximum battery life, stop using the
battery as soon as a significant drop in battery perform­ance is noticed.

9 Troubleshooting

Fault Possible cause Remedy

The power tool doesn’t run. The battery is discharged or is not

pushed all the way in.

Electrical fault. Remove the battery from the tool and

The power tool doesn’t run. The
LED blinks.

The on/off button cannot be
pressed, i.e. the button is
locked.

Running speed suddenly drops
considerably.

The battery runs down more
quickly than usual.

The power tool does not restart
by itself after the saw blade has
stalled.

The battery doesn’t engage with
an audible double click.

The power tool or the battery
becomes very warm.

No / reduced suction power. Chip ejector channel blocked. Clean out the chip ejector channel.
The power tool switches itself

off.

The pivoting guard doesn’t
close.

The battery is discharged. Charge the battery.
The battery is hot. Insert the battery in the charger or

Not a fault (safety function). Press the switch-on interlock.

The battery is discharged or the cut­ting pressure applied to the power
tool is too high.

Very low ambient temperature. Allow the battery to warm up slowly

The overload cut-out has been activ­ated.

The retaining lugs on the battery are
dirty.

Electrical fault. Switch the power tool off immedi-

The power tool has been overloaded
(application limits exceeded).

The overload/overheating cut-out has
been activated.

Dirt or dust. Clean the parts and contact Hilti Ser-

NOTE

- If use continues, further battery discharge will be

stopped automatically before the battery cells suffer
damage.

- Charge the batteries using the specified and approved

Hilti battery chargers for Li‑ion batteries.

8.4 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.

The battery must be heard to engage
with a double click or, respectively,
needs to be charged.

contact Hilti Service.

allow it to cool down.

Change the battery and charge the
empty battery. Reduce the feed pres­sure applied to the power tool.

to room temperature.
Press the switch-on interlock and the

on/off button again.

Clean the retaining lugs and push the
battery in until it engages. Contact
Hilti Service if the problem persists.

ately, remove the battery from the
tool and allow it to cool down while
keeping an eye on it, contact Hilti
Service.

Use the right power tool for the job
(don’t use a low-powered tool for
heavy work).

Release the on/off switch and then
press it again. Allow the system to
cool down if necessary.

vice if the problem persists.

10

Fault Possible cause Remedy

The power tool vibrates
strongly.

The saw blade is fitted incorrectly. Fit the saw blade correctly.

See section: 7.1.2 Fitting the saw
blade 6

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 right away. Keep them out of reach of children. Do not disassemble or incinerate the
batteries.

CAUTION

Batteries that have reached the end of their life must be disposed of in accordance with national regulations or returned
to Hilti.

en

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.

11 Manufacturer’s warranty - tools

Please contact your local Hilti representative if you have
questions about the warranty conditions.

11

12 EC declaration of conformity (original)

Designation: Cordless circular saw
Type: SC 70W‑A22
Generation: 01

en

Year of design: 2014

We declare, on our sole responsibility, that this product
complies with the following directives and standards:
2006/42/EC, until 19th April 2016: 2004/108/EC, from
20th April 2016: 2014/30/EU, 2006/66/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 Man­agement

Business Area Electric Tools & Ac­cessories

09/2015 09/2015

Executive Vice President

Business Unit Power

Tools & Accessories

Technical documentation filed at:

Hilti Entwicklungsgesellschaft mbH
Zulassung Elektrowerkzeuge
Hiltistrasse 6
86916 Kaufering
Deutschland

12

*2092403*

2092403

Hilti Corporation

LI-9494 Schaan
Tel.: [phone]
Fax: [phone]
www.hilti.com

Hilti = registered trademark of Hilti Corp., Schaan
Pos. 2 | 20150515

Printed: 28.05.2015 | Doc-Nr: PUB / 5206198 / 000 / 02