Husqvarna K 970 User Manual
Operator′s manual
K 970
K 970 Rescue
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
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KEY TO SYMBOLS
Symbols on the machine:
WARNING! The machine can be a
dangerous tool if used incorrectly or
carelessly, which can cause serious or
fatal injury to the operator or others.
Please read the operator’s manual
carefully and make sure you understand
the instructions before using the machine.
Wear personal protective equipment. See
instructions under the heading ”Personal
protective equipment”.
This product is in accordance with
applicable EC directives.
WARNING! Dust forms when cutting, this
can cause injuries if inhaled. Use an
approved breathing mask. Avoid inhaling
petrol fumes and exhaust fumes. Always
provide for good ventilation.
Explanation of warning levels
The warnings are graded in three levels.
WARNING!
WARNING! Used if there is a risk of serious
injury or death for the operator or damage to
!
the surroundings if the instructions in the
manual are not followed.
CAUTION!
CAUTION! Used if there is a risk of injury to
the operator or damage to the surroundings
!
if the instructions in the manual are not
followed.
NOTICE!
NOTICE! Used if there is a risk of damage to materials or
the machine if the instructions in the manual are not
followed.
WARNING! Kickbacks can be sudden,
rapid and violent and can cause life
threatening injuries. Read and understand
the instructions in the manual before using
the machine.
WARNING! Sparks from the cutting blade
can cause fire in combustible materials
such as: petrol (gas), wood, dry grass etc.
Noise emission to the environment
according to the European Community’s
Directive. The machine’s emission is
specified in chapter Technical data and on
label.
Other symbols/decals on the machine
refer to special certification requirements for certain
markets.
2 – English
CONTENTS
Contents
KEY TO SYMBOLS
Symbols on the machine: ............................................. 2
Explanation of warning levels ...................................... 2
CONTENTS
Contents ...................................................................... 3
PRESENTATION
Dear Customer, ............................................................ 4
Features ....................................................................... 4
PRESENTATION
What is what on the power cutter - K 970? .................. 5
PRESENTATION
What is what on the power cutter - K 970 Rescue? ..... 6
MACHINE´S SAFETY EQUIPMENT
General ........................................................................ 7
CUTTING BLADES
General ........................................................................ 9
Abrasive blades ........................................................... 9
Diamond blades ........................................................... 10
Toothed blades, carbide tipped blades and emergency
situations ...................................................................... 10
Transport and storage .................................................. 10
ASSEMBLING AND ADJUSTMENTS
General ........................................................................ 11
Checking the drive shaft and flange washers .............. 11
Fitting the cutting blade ................................................ 11
Guard for the blade ...................................................... 11
FUEL HANDLING
General ........................................................................ 12
Fuel .............................................................................. 12
Fuelling ........................................................................ 12
Transport and storage .................................................. 12
OPERATING
Protective equipment ................................................... 13
General safety precautions .......................................... 13
Transport and storage .................................................. 16
STARTING AND STOPPING
Before starting ............................................................. 17
Starting ........................................................................ 17
Stopping ....................................................................... 18
MAINTENANCE
General ........................................................................ 19
Maintenance schedule ................................................. 19
Cleaning ....................................................................... 20
Functional inspection ................................................... 20
TECHNICAL DATA
Technical data .............................................................. 24
Cutting equipment ........................................................ 24
EC-declaration of conformity ........................................ 25
English – 3
PRESENTATION
Dear Customer,
Thank you for choosing a Husqvarna product!
It is our wish that you will be satisfied with your product and
that it will be your companion for a long time. A purchase of
one of our products gives you access to professional help with
repairs and services. If the retailer who sells your machine is
not one of our authorised dealers, ask him for the address of
your nearest service workshop.
This operator’s manual is a valuable document. Make sure it
is always at hand at the work place. By following its´ content
(using, service, maintenance etc) the life span and the
second-hand value of the machine can be extended. If you
will sell this machine, make sure that the buyer will get the
operator´s manual.
More than 300 years of innovation
Husqvarna AB is a Swedish company based on a tradition
that dates back to 1689, when the Swedish King Charles XI
ordered the construction of a factory for production of
muskets. At that time, the foundation was already laid for the
engineering skills behind the development of some of the
world's leading products in areas such as hunting weapons,
bicycles, motorcycles, domestic appliances, sewing
machines and outdoor products.
Husqvarna is the global leader in outdoor power products for
forestry, park maintenance and lawn and garden care, as well
as cutting equipment and diamond tools for the construction
and stone industries.
User responsibility
It is the owner’s/employer’s responsibility that the operator
has sufficient knowledge about how to use the machine
safely. Supervisors and operators must have read and
understood the Operator’s Manual. They must be aware of:
• The machine’s safety instructions.
• The machine’s range of applications and limitations.
• How the machine is to be used and maintained.
National legislation could regulate the use of this machine.
Find out what legislation is applicable in the place where you
work before you start using the machine.
Features
Values such as high performance, reliability, innovative
technology, advanced technical solutions and environmental
considerations distinguish Husqvarna's products.
Some of the unique features of your product are described
below.
Active Air Filtration™
Centrifugal air cleaning in three steps for longer service life
and longer service intervals.
SmartCarb™
Built-in automatic filter compensation maintains high power
and reduces fuel consumption.
Dura Starter™
Dust sealed starter unit, where the return spring and the
pulley bearing are sealed which makes the starter virtually
maintenance free and even more reliable.
X-Torq®
The X-Torq® engine provides a more accessible torque for a
wider range of speeds which results in maximum cutting
capacity. X-Torq® reduces the fuel consumption with up to
20% and the emissions with up to 60%.
EasyStart
The engine and starter are designed to ensure quick and
easy starting of the machine. Reduces the pull resistance in
the starter cord with up to 40%. (Reduces the compression
during starting.)
Air purge
When you push the air purge diaphragm, fuel is pumped
through to the carburettor. Fewer pulls are required for
starting, meaning the machine becomes easier to start.
DEX
Low flushing wet cutting kit for effective dust handling.
The manufacturer’s reservation
All information and all data in the Operator’s Manual were
applicable at the time the Operator’s Manual was sent to print.
Husqvarna AB has a policy of continuous product
development and therefore reserves the right to modify the
design and appearance of products without prior notice.
4 – English
Efficient vibration damping system
Efficient vibration dampers spare arms and hands.
Specially designed starter handle (K 970 Rescue)
Specially designed starter handle, with room for heavy
gloves.
Adjustable carry strap (K 970 Rescue)
Adjustable carry strap for full freedom of movement.
Chromium-plated blade guard (K 970 Rescue)
Chromium-plated blade guard, visible in smoke and water
spray, enhances control of the cutter.
PRESENTATION
What is what on the power cutter - K 970?
1 Front handle
2 Water tap
3 Warning decal
4 Air filter cover
5 Cylinder cover
6 Choke
7 Throttle lockout
8 Throttle control
9 Air purge
10 Stop switch
11 Starter handle
12 Starter
13 Decompression valve
14 Muffler
15 Adjustment handle for guard
16 Guard for the blade
17 Fuel tank
18 Water connection with filter
19 Belt guard
20 Rating plate
21 Cutting arm
22 Belt tensioner
23 Cutting head
24 Cutting blade
25 Combination spanner
26 Operator′s manual
English – 5
PRESENTATION
What is what on the power cutter - K 970 Rescue?
1 Front handle
2 Water tap
3 Warning decal
4 Air filter cover
5 Cylinder cover
6 Choke
7 Throttle lockout
8 Throttle control
9 Air purge
10 Stop switch
11 Starter handle
12 Decompression valve
13 Starter
14 Muffler
15 Adjustment handle for guard
16 Guard for the blade
17 Fuel tank
18 Harness
19 Belt guard
20 Rating plate
21 Cutting arm
22 Belt tensioner
23 Cutting head
24 Cutting blade
25 Combination spanner
26 Operator′s manual
6 – English
MACHINE´S SAFETY EQUIPMENT
General
WARNING! Never use a machine that has
faulty safety equipment! If your machine
!
fails any of these checks contact your
service agent to get it repaired.
The engine should be switched off, and the
stop switch in STOP position.
This section describes the machine´s safety equipment, its
purpose, and how checks and maintenance should be carried
out to ensure that it operates correctly.
Throttle lockout
The throttle trigger lock is designed to prevent accidental
operation of the throttle. When the lock (A) is pressed in this
releases the throttle (B).
• Start the power cutter and apply full throttle. Release the
throttle control and check that the cutting blade stops and
remains stationary. If the cutting blade rotates when the
throttle is in the idle position you should check the
carburettor’s idle adjustment. See instructions in the
section "Maintenance".
Stop switch
Use the stop switch to switch off the engine.
The trigger lock remains pressed in as long as the throttle is
pressed. When the grip on the handle is released the throttle
trigger and the throttle trigger lock both return to their original
positions. This is controlled by two independent return spring
systems. This means that the throttle trigger is automatically
locked in the idle position.
Checking the throttle lockout
• Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
• Press the throttle lockout and make sure it returns to its
original position when you release it.
Checking the stop switch
• Start the engine and make sure the engine stops when
you move the stop switch to the stop setting.
Guard for the blade
WARNING! Always check that the guard is
correctly fitted before starting the machine.
!
This guard is fitted above the cutting blade and is designed to
prevent parts of the blade or cutting fragments from being
thrown towards the user.
• Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
Checking the blade guard
• Check that the guard over the cutting blade is not cracked
or damaged in any other way. Replace when damaged.
• Check that the cutting blade is fitted correctly and does
not show signs of damage. A damaged cutting blade can
cause personal injury.
English – 7
MACHINE´S SAFETY EQUIPMENT
Vibration damping system
WARNING! Overexposure to vibration can
lead to circulatory damage or nerve damage
!
in people who have impaired circulation.
Contact your doctor if you experience
symptoms of overexposure to vibration.
Such symptoms include numbness, loss of
feeling, tingling, pricking, pain, loss of
strength, changes in skin colour or
condition. These symptoms normally appear
in the fingers, hands or wrists. These
symptoms may be increased in cold
temperatures.
• Your machine is equipped with a vibration damping
system that is designed to minimize vibration and make
operation easier.
• The machine′s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine′s handle unit. The engine
body, including the cutting equipment, is insulated from
the handles by vibration damping units.
Muffler
WARNING! Never use a machine without a
muffler, or with a faulty muffler. A damaged
!
muffler may substantially increase the noise
level and the fire hazard. Keep fire fighting
equipment handy.
The muffler gets very hot during and after
use. This also applies during idling. Be
aware of the fire hazard, especially when
working near flammable substances and/or
vapours.
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
Checking the vibration damping system
WARNING! The engine should be switched
off, and the stop switch in STOP position.
!
• Check the vibration damping units regularly for cracks or
deformation. Replace them if damaged.
• Check that the vibration damping element is securely
attached between the engine unit and handle unit.
Inspecting the muffler
Check regularly that the muffler is complete and secured
correctly.
8 – English
CUTTING BLADES
General
WARNING! A cutting blade may burst and
cause injury to the operator.
!
• Cutting blades are available in two basic designs;
abrasive baldes and diamond blades.
• High-quality blades are often most economical. Lower
quality blades often have inferior cutting capacity and a
shorter service life, which results in a higher cost in
relation to the quantity of material that is cut.
• Make sure that the right bushing is used for the cutting
blade to be fitted on the machine. See the instructions
under the heading Assembling the cutting blade.
Suitable cutting blades
Cutting blades K 970 K 970 Rescue
Abrasive blades Yes* Yes*
Diamond blades Ye s Ye s
Toothed blads No Yes**
*Without water
**See instructions under the heading "Toothed blades,
carbide tipped blades and emergency situations".
Cutting blades for different materials
WARNING! Never use a cutting blade for any
other materials than that it was intended for.
!
Hand-held, high-speed machines
WARNING! Never use a cutting blade at a
lower speed rating than that of the power
!
cutter. Only use cutting blades intended for
high speed handheld power cutters.
• Our cutting blades are manufactured for high-speed,
portable power cutters.
• Check that the blade is approved for the same or higher
speed according to the aproval plate of the engine. Never
use a cutting blade with a lower speed rating than that of
the power cutter.
Blade vibration
• The blade can become out-of-round and vibrate if an
excessive feed pressure is used.
• A lower feed pressure can stop the vibration. Otherwise
replace the blade.
Abrasive blades
• The cutting material on abrasive blades consists of grit
bonded using an organic binder. ”Reinforced blades” are
made up of a fabric or fibre base that prevents total
breakage at maximum working speed if the blade should
be cracked or damaged.
• A cutting blade’s performance is determined by the type
and size of abrasive corn, and the type and hardness of
the bonding agent.
• Ensure the blade it not cracked or damaged in any other
way.
Cutting plastics with a diamond blade can
cause kickback when the material melts due
to the heat produced when cutting and
sticks to the blade. Never cut plastic
materials with a diamond blade!
Follow the instructions supplied with the cutting blade
concerning the suitability of the blade for various applications,
or consult your dealer in case of doubts.
Concrete Metal Plastic Cast iron
Abrasive
blades
Diamond
blades
* CAUTION! Only specialty blades.
X X X X
X X* X*
• Test the abrasive blade by hanging it on your finger and
tapping it lightly with a screwdriver or the like. If the blade
does not produce a resonant, ringing sound it is damaged.
English – 9
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