Husqvarna 375KEPA, 371K EPA Owner’s Manual
Operator's manual (EPA) ____
371K 375K
Please read these instructions carefully and make
sure you understand them before using the machine. English
SYMBOL EXPLANATION
Symbols on the power cutter:
WARNING! The power cutter can be
dangerous! Careless and incorrect use can
result in serious or fatal injury to the
operator or others.
Please read the instructions carefully and
make sure you understand them before
using the power cutter.
Always wear:
• Approved protective helmet
Q
A
• Approved hearing protection
• Protective glasses or visor
Warning
Cutting creates a lots of dust which can
cause inhalation damages. Use
appropriate dust mask or respirator
protection. Avoid breathing petrol fumes
and exhaust gases. Provide for good
ventilation.
Warning
Sparks from the cutting blade can cause
Ak
Symbols in the Operator's Manual:
fire in combustible materials such as: petrol
(gas), wood, dry grass etc.
Switch off the engine by moving the stop
switch to the STOP position before carrying
out any checks or maintenance.
Always wear approved protective gloves.
Regular cleaning is required.
_l Protective glasses or a visor must be worn.
2 - English
CONTENTS
Before using your new Power cutter
• Read the Operator's Manual carefully.
• Check the assembly and adjustment of the cutting blade, see
chapter "Assembly'.
• Start the engine and check the carburettor settings. See
chapter "Maintenance", section "Carburetor'. When adjusted
correctly the cutting blade should not rotate when idling.
Setting the idling speed is described in the Operator's
Manual. Adjust the speed according to these instructions. Do
not use the power cutter if the idling speed is not correctly
adjusted!
• Let your Husqvarna dealer check the power cutter and carry
out essential adjustments and repairs.
Maintenance, replacement, or repair of the emission
control devices and systems may be performed by any
nonroad engine repair establishment or individual.
WARNING
The engine exhaust from this product
contains chemicals known totheState
of California to cause cancer, birth
defects or other reproductive harm.
You will find the following label on your power cutter:
List of Contents
Symbol explanation .....................................................2
Safety instructions
Personal protective equipment ....................................... 4
The power cutter's safety equipment ...................... 4
Control, maintenance and service of the machine's safety
equipment ............................................................................ 5
General safety instructions .............................................. 6
Transport and storage ......................................................... 6
Fuel safety ........................................................................... 7
General working instructions ........................................... 7
Cutting ................................................................................. 7
Kickback .............................................................................. 8
Care and storage ................................................................. 9
Cutting blades ....................................................................lO
Abrasive discs ................................................................... 10
Cutting blades ................................................................... 11
Diamond blades ................................................................ 11
What is what?
What is what on a power cutter? ....................................... 12
Assembly
Fitting the cutting head ...................................................... 13
Checking the drive shaft and flanges ................................ 13
Fitting the cutting blade ..................................................... 13
Fuel handling
Fuel mixture ....................................................................... 14
Fuelling .............................................................................. 14
Start and stop
Start and stop .................................................................... 15
Maintenance
Adjusting the drive belt ...................................................... 16
Changing the drive belt ..................................................... 16
Carburettor ........................................................................ 17
Fuel filter ............................................................................ 18
Air filter .............................................................................. 18
Starter ................................................................................ 19
Spark plug ......................................................................... 20
Muffler ................................................................................ 20
Cooling system .................................................................. 20
Daily maintenance ............................................................. 21
Weekly maintenance ......................................................... 21
Monthly maintenance ........................................................ 21
Technical Data
371K .................................................................................. 22
375K .................................................................................. 22
Emission Control Warranty Statement
Your warranty rights and obligations ................................. 23
A WARNING A
Cutters can be dangerous !
For safe operation follow all safety
precautions in operator's manual.
IMPORTANT ENGINE INFORMATION
BHusqw_a 371K 71 cc 3HVXSJ71ERC
HUSQVARNAABHUSKVARNASWEDEN
THISENGINECONFORMS3"01097U_. EPAEMISSION
REGULATIONFORSMALLNONROADENGINES.
REFERTO OPERATOR'SMANUALFORMAINTENANCE
SPECIFICATIONSANDADJUSTMENTS.
375K 75 cc 3HV)(S_765RB
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.
English - 3
SAFETY INSTRUCTIONS
PERSONAL PROTECTIVE EQUIPMENT
• PROTECTIVE HELMET
• EAR PROTECTION
• PROTECTIVE GLASSES
OR FULL FACE
PROTECTION
• BREATHING MASK
THE POWER CUTTER'S SAFETY
EQUIPMENT
This section describes the power cutter's safety equipment, its
function and how checks and maintenance are carried out to
ensure that it operates correctly. (See the chapter "What is
what" to locate where this equipment is positioned on your
power cutter.)
1 Anti-vibration
system
Your power cutter is equipped
with an anti-vibration system.
This is designed to give as low
vibration levels and
comfortable usage as possible.
• HEAVY-DUTY, FIRM GRIP
GLOVES
• SNUG-FITTING, HEAVY-
DUTY, COMFORTABLE
CLOTHING THAT ALLOWS
FULL FREEDOM OF
MOVEMENT
• LEG PROTECTION(TO
PROTECT AGAINST
SPARKSAND CUTTING
FRAGMENTS)
• ANTI-SLIP BOOTS WITH
STEEL TOE CAPS
The power cutter's anti-
vibration system reduces the
transfer of vibration between
the engine/cutting equipment
and the cutting trolley. The
engine body including the
cutting equipment is
suspended in a handle system
via anti-vibration elements.
2 Stop switch
The stop switch should be
used to stop the engine.
• FIRST AID KIT SHOULD
ALWAYS BE ON HAND
4 = English
SAFETY INSTRUCTIONS
3 Muffler
The muffler is designed to
give the lowest possible noise
level and to direct the engine's
exhaust fumes away from the
user. The engine's exhaust
fumes are hot and can contain
sparks, which can lead to the
outbreak of fire.
MPORTANT INFORMATION! It is extremely important that
the instructions for checking, maintaining and servicing
the muffler are followed. (see the section "Control,
maintenance and service of the machine's safety
equipment'S.
Control, maintenance and service of
the machine's safety equipment
1 Anti-vibration system
Check the anti-vibration
elements regularly for material
cracks and deformation.
4 Throttle lock
The throttle lock is designed
to prevent accidental opera-
tion of the throttle control.
When you press the lock (A)
(i.e. when you grasp the
handle) it releases the throttle
trigger (B). When you release
the handle the throttle trigger
and the throttle lock both
move back to their original
positions. This movement is
controlled by two independent
return springs. This arrange-
ment means that the throttle
control is automatically locked
at the idle setting when you
release the handle.
A
B
5 Blade guard for the cutting blade
The blade guard is mounted
above the cutting blade and
prevents cutting fragments
from being thrown towards the
user.
Check that the anti-vibration
elements are securely
mounted between the engine
unit and the handle system.
2 Stop switch
Start the engine and make
sure that the engine stops
when the stop switch is
moved to the stop position.
English = 5
3
Muffler
SAFETY INSTRUCTIONS
5 Blade guard for the cutting blade
Never use a machine that
has a defective muffler.
Check regularly that the
muffler is secured to the
engine body.
4
Throttle lock
1
Make sure the throttle
control is locked at the
idle setting when you
release the throttle lock.
Never use a defective blade
guard or a blade guard that is
not fitted correctly.
_ _er_i__6_ks_ .....................
Press the throttle lock and
make sure it returns to its
original position when you
release it.
3
Check that the throttle
control and throttle lock
move freely and that the
return springs work
properly.
4
Start the power cutter and
apply full throttle. Release
the throttle control and
check that the blade stops
and remains stationary. If
the blade rotates when
the throttle is on idle
setting you should check
the carburettor idle
adjustment. See the
section on "Maintenance".
GENERAL SAFETY INSTRUCTIONS
IMPORTANT INFORMATION!
Do not use the power cutter until you have read the
entire contents of this Operator's Manual.
All servicing, in addition to the points listed in the
section "Control, maintenance and service of the
power cutter's safety equipment', should be carried
out by trained service specialists.
• Use the equipment recommended in the chapter "Personal
safety equipment",
• Never use the machine when you are tired, under the
influence of medicines/drugs or alcohol.
• Do not lend the power cutter to anyone without providing this
Operator's Manual. Ensure the person using the power cutter
understands the information in this Operator's Manual.
Transport and storage
• Store the power cutter under lock and key so that it's out of
reach for children and unauthorised persons.
• Do not store or transport the power cutter with the cutting
blade fitted.
6 = English
SAFETY INSTRUCTIONS
Fuel safety
(Filling/Fuel mixture/Storage)
• Never fill the machine while
the engine is running.
• Provide good ventilation
when filling or mixing fuel
(petrol and 2-stroke oil).
• Move the machine at least 3
m from the filling position
before starting.
Min3m j
• Never start the machine:
a) If you have spilt fuel
on it. Wipe up all
spillage.
b) If you have spilt fuel
on yourself or your
clothes. Change your
clothes.
c) If there is a fuel leak.
Make regular checks for
leakage from the fuel
cap and the fuel supply
pipes.
• Store the power cutter and fuel so that any leakage or fumes
do not risk coming into contact with sparks or naked flames.
For example, electric machines, electric motors, electrical
switches/power switches, heaters or the like.
• When storing fuel, approved containers intended for this
purpose must be used.
• When storing the power cutter for long periods the fuel tank
must be emptied. Contact your local petrol station to find out
how to dispose of excess fuel.
(lOft)
GENERAL WORKING INSTRUCTIONS
This section takes up the basic safety precautions for working
with the power cutter. Follow these general working instructions,
but never use a machine without the possibility of calling for
help in the event of an accident.
Basic safety precautions
IMPORTANT INFORMATION! Never work with a power
cutter that is defective or incorrectly adjusted. Do not
work with a power cutter that is incomplete or where
assembly has not been carried out in a satisfactory
manner. Check that the cutting blade stops rotating
when the throttle is released. If you encounter a situation
where you are uncertain how to proceed you should ask
an expert.
Avoid all usage which you consider to be beyond your
capability.
• Check that no one is in the immediate vicinity when the
machine is started or while working with the machine to
ensure that people, animals or other things cannot affect your
control of the power cutter.
• Avoid usage in unfavourable weather conditions, for example,
thick fog, heavy rain, strong winds or extreme cold, etc. To
work in bad weather conditions is tiring and can create
dangerous circumstances, e.g. slippery surfaces.
• Never start to work with the power cutter before the working
area is clear and you have a firm foothold. Look out for any
obstacles with unexpected movement. Ensure when cutting
that no material can become loose and fall, causing operating
injury.Take great care when working on sloping ground.
• Make sure clothing and parts of the body do not come into
contact with the cutting blade when the engine is started.
• Maintain a safe distance from the cutting blade when the
engine is running.
• The blade guard should always be fitted when the engine is
running.
• Ensure that the working area is sufficiently illuminated to
create a safe working environment.
• Check the cutting area for buried cables and wires.
• Use a Husqvarna fuel can with an anti-spill device.
Cutting
i_
• Start cutting with the engine at full throttle.
• Always hold the power cutter firmly, with both hands. Hold
the machine so that the thumb and fingers grip around the
handle.
English = 7
SAFETY INSTRUCTIONS
Cutting technique
The technique described below is of a general character. Check
information for each blade regarding individual cutting characte-
ristics. (For example, a diamond blade requires less feeding
pressure than a abrasive blade
1.Support the work piece in
such away that you can
predict what will happen
and so it will not pinch.
2. Always cut at full throttle.
3.Start cutting gently, do
not force or squeeze the
blade in.
\
Water cooling
increases
blades');i
Sharpening diamond blades
Blades can become dull when the wrong feeding pressure is
used or when cutting some materials such as heavily reinforced
concrete. To force a dull blade results in overheating and finally
the loss of segments (part of the blade).
Sharpen against a soft material such as sandstone or haydite
brick.
Blade vibration
The blade can become out of shape (not round) and vibrate if a
too high feeding pressure is used or if the blade is pressed into
the work piece.
A lower feeding pressure ought to stop the vibration. Otherwise
replace the cutting blade.
Kickback
4. Use a high blade speed.
5. Move the blade slowly
backwards and forwards.
6. Use a small part of the
blade's cutting edge.
7.Only use the blade's
cutting edge when
cutting.
8.Cut with the blade fully
vertical - at right angles
to the work piece.
If the sector of the blade illustrated below is used for cutting the
blade can start to climbing and kickback the power cutter
upwards and backwards towards the user with immense force.
How to avoid kickback
i i
1.Never cut with the
segment illustrated in the
diagram.
2. Keep a good balance and
a firm foothold.
3. Use both hands and take
a firm grip with the thumb
and fingers around the
handle.
4. Keep the work piece at a
comfortable distance.
5. Use the cutter at full
throttle.
8 = English
6.Take care when inserting
the blade in an existing
cut.
7.Never cut above shoulder
height.
8. Be alert to movement of
the work piece or anything
else that can occur, which
could cause the cut to
close and pinch the blade.
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