Poulan Pro PR48BT Instruction Manual
PR48BT
582615949 REV. A 2016-05-02
KEY T O SYMBOLS
2
– English
Symbols
W
ARNING! 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.
Keep all parts of your body away from hot
surfaces.
Always wear boots and other equipment
described under the heading Personal
protective equipment.
Always wear:
• Hearing protection
• Approved eye protection
A breathing mask should be used when
there is a risk of dust.
Wear protective hair covering to contain
long hair.
Never put hands or other objects into
blower housing to avoid serious injury
from the rotating impeller.
Never wear loose-fitting clothing, jewellery
or similar that can get caught in moving
parts.
Only use the machine for the purpose it
was intended for.
The blower can forcibly throw objects
that can bounce back. This can result
in serious eye injuries if the recommended safety equipment is not
used.
The blower operator must
make sure that no
bystanders or animals
come nearer than 15
metres. Whenever several
operators are working in the same work area, they should
maintain a safe distance of at least 15 metres from one
another.
Air purge
Other symbols/decals on the mac hine refer to special
certification requirements for certain markets.
Switch off the engine by moving the stop
switch to the STOP position before
carrying out any checks or maintenance.
Switch on the engine by moving the stop
switch to the ON position before starting.
Always wear protective gloves.
Regular cleaning is required.
Visual check.
Protective goggles or a visor must be
worn.
Refuelling.
Choke lever in ”open position”.
Choke lever in ”closed position”.
Z 87
I
CONTENTS
English
–
3
Contents
Note the f ollowing before
starting:
Please read the oper ator’s manual carefully.
This decal certifies that the product has been approved in
accordance with American exhaust emissions
requirements EPA Ph III and CARB Tier III. The
Emissions Compliance Period referred to on the
Emissions Compliance label indicates the numbers of
operating hours for which the engine has been shown to
meet Federal and California emission requirements.
NO
TE! The appearance of your product may vary from
the item shown in manual.
The machine is only designed f or blowing lawns,
pathways, asphalt roads and the like.
For customer assistance, contact us at our website
www.poulanpro.com
KEY TO SYMBOLS
Symbols ................................................................ 2
CONTENTS
Contents ............................................................... 3
Note the following before starting: ........................ 3
WHA T IS WHAT?
What is what on the b lower? ................................ 4
GENERAL SAFETY PRECA UTIONS
Gener al ................................................................. 5
SAFETY INSTR UCTIONS
P
ersonal protective equipment ............................. 7
Machine ′ s safety equipment ................................. 7
Checking, maintaining and servicing the
machine
′
s safety equipment ................................. 8
General working instructions ................................ 9
ASSEMBL Y
Assemb ling the blow pipe and control handle ...... 12
FUEL HANDLING
Fuel ...................................................................... 13
Fueling .................................................................. 14
ST
ARTING AND STOPPING
Star ting and stopping ........................................... 15
MAINTENANCE
Gener al ................................................................. 17
Carburetor ............................................................ 17
Muffler .................................................................. 17
Cooling system ..................................................... 17
Air intake screen ................................................... 17
Spark plug ............................................................ 17
Air filter ................................................................. 18
Shoulder strap ...................................................... 18
Maintenance schedule ......................................... 19
FEDERAL AND CALIFORNIA EMISSIONS
CONTROL WARRANTY STATEMENT
20
!
W
ARNING! Long-term exposure to noise
can result in permanent hearing
impairment. So always use approved
hearing protection.
!
W
ARNING! Under no circumstances may
the design of the machine be modified
without the permission of the
manufacturer. Always use genuine
accessories. Non-authorized
modifications and/or accessories can
result in serious personal injury or the
death of the operator or others.
Your warranty may not cover damage or
liability caused by the use of nonauthorized accessories or replacement
parts.
!
W
ARNING! A blower is a dangerous tool
if used carelessly or incorrectly and can
cause serious, even fatal injuries. It is
extremely important that you read and
understand the contents of this
Operator’s manual.
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
4
– English
WHA T IS WHA T?
What is what on the b lower?
1
Frame
2 Harness
3 Engine cover
4 Fan shell
5 Air intake screen
6Fan
7 Air cleaner
8 Starter handle
9 Fuel tank
10 Pad
11 Spark plug
12 Vibration damping system
13 Choke control
14 Operating handle
15 Stop switch
16 Throttle trigger
17 Elbow
18 Clamp
19 Flexible hose
20 Control pipe
21 Clamp for wire harness
22 Intermediate pipe
23 Blower nozzle
24 Operator’s manual
25 Combination spanner
26 Cruise control
GENERAL SAFETY PRECA UTIONS
English
–
5
General
Star ting
•
Never start the machine indoors. Exhaust fumes can
be dangerous if inhaled.
• Observe the surroundings and ensure that no people
or animals can come into contact with the blower.
• Place the machine on the ground, press the machine
body against the ground with your left hand (NOTE!
Not your foot). Now grasp the starter handle with your
right hand and then pull quickly and firmly.
IMPORTANT!
The machine is only designed for blowing lawns,
pathways, asphalt roads and the like.
Do an overall inspection of the machine before use, see
maintenance schedule.
Never use the machine if you are tired, if you have drunk
alcohol, or if you are taking medication that could affect
your vision, your judgement or your co-ordination.
Wear personal protective equipment. See instructions
under the heading ”Personal protective equipment”.
Never use a machine that has been modified in any way
from its original specification.
Never use a machine that is faulty. Carry out the safety
checks, maintenance and service instructions
described in this manual. Some maintenance and
service measures must be carried out by trained and
qualified specialists. See instructions under the heading
Maintenance.
All covers and guards must be fitted before starting.
Ensure that the spark plug cap and ignition lead are
undamaged to avoid the risk of electric shock.
The blower operator must make sure that no bystanders
or animals come nearer than 15 metres. Whenever
several operators are working in the same work area,
they should maintain a safe distance of at least 15
metres from one another.
Never allow children to use the machine.
Never allow anyone else to use the machine without first
ensuring that they have read and understood the
contents of the operator’s manual.
Always check for any objects that may block the air
intake screen before beginning work.
Never remove the air intake screen.
In case of emergency, release yourself from the
machine by opening the waist and chest belt and let the
machine fall backwards.
Always contact local authorities and make sure you are
following applicable directives.
Keep all parts of your body away from hot surfaces.
Never touch the spark plug or ignition cable while the
engine is running.
!
W
ARNING! This machine produces an
electromagnetic field during operation.
This field may under some
circumstances interfere with active or
passive medical implants. To reduce the
risk of serious or fatal injury, we
recommend persons with medical
implants consult their physician and the
medical implant manufacturer before
operating this machine.
!
Engine e xhaust fumes contain carbon
monoxide, which can cause carbon
monoxide poisoning. For this reason you
should not start or run the machine
indoors, or anywhere that is poorly
ventilated.
GENERAL SAFETY PRECA UTIONS
6
– English
Fuel saf ety
•
Always use a fuel container with an anti-spill valve.
• Never refuel the machine while the engine is running.
Always stop the engine and let it cool for a few minutes
before refueling.
• Make sure there is plenty of ventilation when refuelling
or mixing fuel (gasoline and 2-stroke oil).
• Avoid all skin contact with fuel. Fuel is a skin irritant
and may even cause skin changes.
• Move the machine at least 10 ft (3 m) from the
refuelling point before starting it.
• Never start the machine:
- If you have spilled fuel on it. Wipe off the spillage and
allow remaining fuel to evaporate.
- If you have spilled fuel on yourself or your clothes,
change your clothes. Wash any part of your body that has
come in contact with fuel. Use soap and water.
- If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines.
T
ransport and storage
•
Store and transport the machine and fuel so that there
is no risk of any leakage or fumes coming into contact
with sparks or open flames, for example, from
electrical machinery, electric motors, electrical relays/
switches or boilers.
• When storing and transporting fuel always use
approved containers intended for this purpose.
• When storing the machine for long periods the fuel
tank must be emptied. Contact your local gas station
to find out where to dispose of excess fuel. Empty the
fuel tank and press the primer until all fuel has been
emptied.
• Remove the spark plug and drop a spoon of 2-stroke
oil in the cylinder. Turn over the engine a few times and
then put the spark plug back in place.
• Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
• Secure the machine during transport.
• Store the machine in a dry, cool, well-aired and dustfree location. Store the machine out of reach of
children.
Adjusting the harness
A correctly adjusted har ness and machine significantly
facilitates the work. Adjust the harness to give the best
working position.
Tighten the side straps so that the pressure is evenly
distributed across the shoulders.
Lift the tabs of the sliding adjusters.
!
W
ARNING! Take care when handling fuel.
Bear in mind the risk of fire, explosion
and inhaling fumes.
!
W
ARNING! The harness must always be
worn when working with the machine.
Failure to do so means you will be unable
to manoeuvre safely and this can result
in injury to yourself or others.
SAFETY INSTR UCTIONS
English
–
7
P
ersonal protective equipment
•
Gloves should be worn when necessary.
• Wear hearing protection that provides adequate noise
reduction.
• Always wear approved eye protection. If you use a
visor then you must also wear approved protective
goggles. Approved protective goggles must comply
with standard ANSI Z87.1 in the USA or EN 166 in EU
countries. Blows from branches or objects that are
thrown can damage the eyes.
• Wear sturdy, non-slip boots.
• Always wear heavy, long pants, boots, gloves, and a
long-sleeve shirt. To reduce the risk of injury
associated with objects being drawn into rotating
parts, do not wear loose clothing, scarves, jewelry,
etc. Secure hair so it is above shoulder level.
• A breathing mask should be used when there is a risk
of dust.
• Always have a first aid kit nearby.
Mac hine
′′
′′
s safety equipment
This section descr ibes the machine ′ s safety equipment,
its purpose, and how checks and maintenance should be
carried out to ensure that it operates correctly. See the
”What is what?” section to locate where this equipment is
positioned on your machine.
Stop s witch
Use the stop s witch to switch off the engine.
Remove the ignition cable and the spark plug to carry out
inspection and maintenance.
!
W
ARNING! You must use approved
personal protective equipment whenever
you use the machine. Personal protective
equipment cannot eliminate the risk of
injury but it will reduce the degree of
injury if an accident does happen. Ask
your dealer for help in choosing the right
equipment. Please read the operator’s
manual carefully and make sure you
understand the instructions before using
the machine.
!
W
ARNING! Listen out for warning signals
or shouts when you are wearing hearing
protection. Always remove your hearing
protection as soon as the engine stops.
!
W
ARNING! Never use a machine that has
faulty safety equipment! Carry out the
inspection, maintenance and service
routines listed in this section.
SAFETY INSTR UCTIONS
8
– English
Vibration damping system
Y
our machine is equipped with a vibration damping
system that is designed to reduce vibration and make
operation easier.
Muffl er
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
In countries that have a warm and dry climate there is a
significant risk of fire. Consequently, we have equipped
the muffler with a spark arrestor screen mounted inside
the muffler.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine. See instructions under the heading Checking,
maintaining and servicing the machine’s safety
equipment.
Checking, maintaining and
servicing the machine
′′
′′
s safety
equipment
Stop switch
• Start the engine and make sure the engine stops
when you move the stop switch to the stop setting.
!
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. The risk
increases at low temperatures.
!
WARNING! The exhaust fumes from the
engine are hot and may contain sparks
which can start a fire. Never start the
machine indoors or near combustible
material!
!
WARNING! The inside of the muffler
contain chemicals that may be
carcinogenic. Avoid contact with these
elements in the event of a damaged
muffler.
!
WARNING! All servicing and repair work
on the machine requires special training.
This is especially true of the machine
′′′′s
safety equipment. If your machine fails
any of the checks described below you
must contact your service agent. When
you buy any of our products we
guarantee the availability of professional
repairs and service. If the retailer who
sells your machine is not a servicing
dealer, ask him for the address of your
nearest service agent.
SAFETY INSTRUCTIONS
English – 9
Vibration damping system
• Check the vibration damping units regularly for cracks
or deformation. Replace them if damaged.
• Check that the vibration damping element is
undamaged and securely attached.
Muffler
• Never use a machine that has a faulty muffler.
• Regularly check that the muffler is securely attached
to the machine.
• The muffler on your machine is equipped with a spark
arrestor screen. NOTE: THE SPARK ARRESTOR
SCREEN ON THIS UNIT IS NOT SERVICEABLE. As
your unit is used, carbon deposits build up on the
muffler and spark arresting screen. For normal
homeowner use, however, the muffler and spark
arresting screen will not require any service. After 50
hours of use, we recommend that your muffler be
serviced or replaced by your authorized service
dealer. A blocked screen will cause the engine to
overheat and may lead to serious damage. Never use
a muffler with a defective spark arrestor screen. Never
use a muffler with a defective spark arrestor screen.
Air filter
Never use the leaf blower without an air filter or with a
damaged or deformed filter element as unfiltered, dusty
air can quickly destroy the engine.
General working instructions
Show consideration to persons in your surroundings by
avoiding using the machine at unsuitable times, such as
late in the evening or early in the morning. To reduce
sound levels, limit the number of pieces of equipment
used at any one time. Read through and follow the simple
directions so that you disturb your surroundings as little as
possible.
• Use the blower with the lowest possible throttle. It is
seldom necessary to use full throttle, and many work
procedures can be done at half throttle. A lower
throttle means less noise and less dust, and it is also
easier to keep control over the rubbish collected
together/moved.
• Use a rake or a brush to release rubbish stuck to the
ground.
• Hold the opening of the blower as close to the ground
as possible. Utilise the entire length of the blow pipe
to keep the air current close to the ground.
• Clean up afterwards. Make sure that you have not
blown rubbish into someone’s garden.
• Operate power equipment only at reasonable hours,
not early in the morning or late at night when people
might be disturbed. Comply with times listed in local
ordinances.
!
WARNING! Never use a machine with
faulty safety equipment. The machine’s
safety equipment must be checked and
maintained as described in this section.
If your machine fails any of these checks
contact your service agent to get it
repaired.
IMPORTANT! This section considers basic safety rules
when working with blowers. If you encounter a situation
where you are uncertain how to proceed you should ask
an expert. Contact your dealer or your service
workshop. Avoid all usage which you consider to be
beyond your capability.
!
WARNING! Be aware of your
surroundings. If anyone approaches your
work area, set the throttle control to the
lowest throttle until the person is at a
safe distance. Direct the blower away
from people, animals, play areas, open
windows and cars etc.
SAFETY INSTRUCTIONS
10 – English
Basic safety rules
• No unauthorised persons or animals may be present
in the working area, which is 15 metres.
• Allow the engine to cool before refueling.
• Keep all parts of your body away from hot surfaces.
• If the machine catches fire or other emergency occurs
which forces you to release yourself from the
machine, open the harness straps and let the
machine fall backwards.
• The powerful currents of air can move objects at such
a speed that they can bounce back and cause serious
eye injuries.
• Do not direct the air jet towards people or animals.
• Stop the engine before assembling or dismantling
accessories or other parts.
• Do not use the machine in bad weather, such as
dense fog, heavy rain, strong wind, intense cold, etc.
Working in bad weather is tiring and can lead to
dangerous conditions, e.g. slippery surfaces.
• Minimise the blowing time by lightly wetting dusty
areas or using spray equipment.
• Make sure you can move and stand safely. Check the
area around you for possible obstacles (roots, rocks,
branches, ditches, etc.) in case you have to move
suddenly. Take great care when working on sloping
ground.
• Never put the machine down with the engine running
unless you have it in clear sight.
• Engine exhaust fumes contain carbon monoxide,
which can cause carbon monoxide poisoning. For this
reason you should not start or run the machine
indoors, or anywhere that is poorly ventilated.
• The operator’s manual should warn that work from
ladders or high places (such as roofs) is prohibited
and could result in severe injury.
• CAUTION! Do not use the machine unless you are
able to call for help in the event of an accident.
Basic working techniques
• This blower is a backpack type, and is carried using a
shoulder harness while operating. It is operated and
controlled with the handle on the tube using the right
hand.
• The speed of the air jet is regulated by means of the
throttle. Select the speed best suited for respective
tasks.
Z 87
!
WARNING! Watch out for thrown objects.
Always wear eye protection. Stones,
rubbish, etc. can be thrown up into the
eyes causing blindness or serious injury.
Keep unauthorised persons at a
distance. Children, animals, onlookers
and helpers should be kept outside the
safety zone of 15 m. Stop the machine
immediately if anyone approaches.
!
WARNING! Don’t operate the blower if
the exhaust gas outlet on the engine
cover is covered by a wall and/or some
other obstacles, the machine could get
damage. Make sure that the distance is
50 cm or more from the obstacles during
operation.
!
WARNING! Always stop the engine
before cleaning.
SAFETY INSTRUCTIONS
English – 11
To avoid holding your finger on the throttle all the time
when using the blower, the required throttle can be set
with the cruise control (D). Full throttle is obtained when
the throttle trigger is pushed in or the cruise control is
pushed down fully.
• Check that the air intake is not blocked, for example,
by leaves or rubbish. A clogged air intake reduces the
machine’s blowing capacity and increases the
engine’s working temperature, which can result in
engine failure. Stop the engine and remove the object.
• Be aware of the wind direction. Work with the wind to
make your work easier.
• Using the blower to move large piles is time
consuming and creates unnecessary noise.
• Keep a good balance and a firm foothold.
• When work is finished the machine should be stored
vertically.
D
ASSEMBLY
12 – English
Assembling the blow pipe and
control handle
• Connect the blower and control pipe with the flexible
hose. Clamp both ends of the flexible hose in place.
Use the accompanying hardware.
1 Flexible hose
2 Control pipe
3 Clamp
4 Clamp
Note! Lubricate the pipes a little to facilitate assembly.
• Position the operating handle over the control pipe.
• Rotate the operating handle so that the notch passes
over the tabs on the control pipe.
• Align the operating handle with the key of the control
pipe.
• The cabling of the operating handle must not be
twisted during assembly.
• Adjust the position to achieve a comfortable working
position. Tighten the throttle handle clamp.
• Secure the cabling at the center of the flexible hose
using supplied clamp.
Blower pipe
NOTE: Make sure the screws in the pipes are moved out
of the way so they do not cause obstructions during
assembly. Assemble the intermediate pipe and the blow
pipe. Align the screws with the threaded holes in the
pipes. Tighten screw upon completing assembly of blow
pipes. It is possible to add more intermediate pipes if
longer round blower pipe are required.
3
1
4
2
FUEL HANDLING
English – 13
Fuel
CAUTION! The machine is equipped with a two-stroke
engine and must always be run using a mixture of
gasoline and two-stroke engine oil. It is important to
accurately measure the amount of oil to be mixed to
ensure that the correct mixture is obtained. When mixing
small amounts of fuel, even small inaccuracies can
drastically affect the ratio of the mixture.
Gasoline
CAUTION! Always use high grade oil mixed gasoline
(minimum 87 RON).
• This engine is certified to operate on unleaded
gasoline.
• The lowest recommended octane rating is 87. If you
run the engine on lower octane rating than 87 socalled “knocking“ can occur. This leads to an
increased engine temperature, which can result in a
serious engine breakdown.
• When working at continuous high revs a higher octane
rating is recommended. Use good quality unleaded
gasoline.
Ethanol blended fuel, E10 may be used (max 10%
ethanol blend). Using ethanol blends higher than E10 will
create lean running condition which can cause engine
damage.
Two-stroke oil
• For best results and performance, use a good quality
fully sythetic air cooled two stroke oil at a mixture of
1:50 (2%)
• Never use two-stroke oil intended for water-cooled
outboard engines, sometimes referred to as outboard
oil.
• Never use oil intended for four-stroke engines.
Mixing
• Always mix the gasoline and oil in a clean container
intended for fuel.
• Always start by filling half the amount of the gasoline
to be used. Then add the entire amount of oil. Mix
(shake) the fuel mixture. Add the remaining amount of
gasoline.
• Mix (shake) the fuel mixture thoroughly before filling
the machine’s fuel tank.
• Do not mix more than one month’s supply of fuel at a
time.
• If the machine is not used for some time the fuel tank
should be emptied and cleaned.
• This engine is certified to operate on unleaded
gasoline.
!
WARNING! Always ensure there is
adequate ventilation when handling fuel.
Gasoline, litre Two-stroke oil, litre
2% (50:1)
5 0,10
10 0.42/0,20
15 0,6/0,30
20 0,40
US gallon US fl. oz.
1 2 1/2
2 1/2 6 1/4
5 12 1/2
FUEL HANDLING
14 – English
Fueling
• Move the machine at least 10 ft (3 m) from the
refuelling point before starting it.
• Clean the area around the fuel cap. Contamination in
the tank can cause operating problems.
• Ensure that the fuel is well mixed by shaking the
container before filling the tank.
• Check the fuel level before each use and leave space
for the fuel to expand, because the heat from the
engine and the sun may otherwise cause the fuel to
expand and overflow.
!
WARNING! Taking the following
precautions, will lessen the risk of fire:
Refuel in a well ventilated area. Never
fuel the machine indoors.
Do not smoke or place hot objects near
fuel.
Always shut off the engine before
refueling.
Always stop the engine and let it cool for
a few minutes before refueling.
When refuelling, open the fuel cap slowly
so that any excess pressure is released
gently.
Tighten the fuel cap carefully after
refueling.
If you have spilled fuel on it. Wipe off the
spillage and allow remaining fuel to
evaporate.
Always move the machine away from the
refueling area and source before
starting.
STARTING AND STOPPING
English – 15
Starting and stopping
Cold engine
Choke: Set the choke control to maximum choke
position.
Air purge: Press the air purge repeatedly for a minimum
of 10 times and fuel begins to fill the bulb. The bulb need
not be completely filled.
Ignition: Set the stop switch to the start position.
Fast idle position: Set cruise control lever to fast idle
position using guidemarks on cruise control lever and
operating handle.
Starting
Hold the body of the machine on the ground using your
left hand (CAUTION! Not with your foot!). Grip the starter
handle, slowly pull out the cord with your right hand until
you feel some resistance (the starter pawls grip), now
quickly and powerfully pull the cord.
Never wrap the
starter cord around your hand
Repeat pulling the cord until the engine attempts to start.
Place choke lever to full open position. Pull starter rope
sharply until engine starts. Allow engine to run at fast idle
for 30 seconds.
CAUTION! Do not pull the starter cord all the way out and
do not let go of the starter handle when the cord is fully
extended. This can damage the machine.
Warm engine
Use the same starting procedure as for a cold engine but
without setting the choke control in the choke position.
!
WARNING! Always move the machine
away from the refueling area and source
before starting. Place the machine on a
flat surface.
Make sure no unauthorised persons are
in the working area, otherwise there is a
risk of serious personal injury. The safety
distance is 15 meters (50 ft.).
The machine may only be started in its
complete design. If the machine is
started without all the guards fitted there
is a risk of personal injuries.
Z 87
I
STARTING AND STOPPING
16 – English
Air is released as soon as the engine is started, even
when idling. Do not allow anyone to stand close to the
blower or the blower tube.
1 Full throttle
2 Idle speed
3 Stop switch
Stopping
The engine is stopped by moving the stop switch to the
stop position.
3
2
1
MAINTENANCE
English – 17
General
Remove the ignition cable and the spark plug to carry out
inspection and maintenance. Keep all parts of your body
away from hot surfaces.
Carburetor
Adjustment of the idle speed
Before any adjustments are made, make sure that the air
filter is clean and the air filter cover is fitted.
The factory idle speed setting is: 2500 rpm
Use the adjustment screw at the upper edge of the
carburettor if the idle speed has to be adjusted.
Muffler
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
cause fire if directed against dry and combustible
material.
The muffler on your machine is equipped with a spark
arrestor screen. NOTE: THE SPARK ARRESTOR
SCREEN ON THIS UNIT IS NOT SERVICEABLE. As
your unit is used, carbon deposits build up on the muffler
and spark arresting screen. For normal homeowner use,
however, the muffler and spark arresting screen will not
require any service. After 50 hours of use, we recommend
that your muffler be serviced or replaced by your
authorized service dealer.
CAUTION! Never use a machine with a defective muffler.
Check regularly that the muffler is complete and secured
correctly.
Make sure that the spark arrester and the exhaust duct
are screwed in place correctly.
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
• Cooling fins on the cylinder.
• Air intake screen
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder. Check that the nozzles
are not blocked.
Air intake screen
Check that the air intake is not blocked on all sides
including the underside, for example, by leaves or
rubbish. A clogged air intake reduces the machine’s
blowing capacity and increases the engine’s working
temperature, which can result in engine failure. Stop the
engine and remove the object.
Spark plug
The spark plug condition is influenced by:
• Incorrect carburetor adjustment.
• An incorrect fuel mixture (too much or incorrect type
of oil).
• A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
!
WARNING! The muffler gets very hot
during use and remain so for some time
after stopping. This also applies at idle
speed. Contact can result in burns to the
skin. Remember the risk of fire!
!
WARNING! Never use the blower if the
screen is not in place. Before use, check
that the screen is in place and
undamaged.
MAINTENANCE
18 – English
Clean the outside of the spark plug. Remove it and check
the electrode gap. Adjust the gap to 0,6-0,7 mm, or
replace the spark plug. Check that the spark plug is fitted
with a suppressor.
CAUTION! Always use the recommended spark plug
type! Use of the wrong spark plug can damage the piston/
cylinder.
Always use the recommended spark plug type (NGK
BPMR7A)! Use of the wrong spark plug can damage the
piston/cylinder.
Air filter
The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
• Carburettor malfunctions.
• Starting problems.
• Loss of engine power.
• Unnecessary wear to engine parts
• Excessive fuel consumption.
Check the airfilter and clean it when it´s necessary.
Avoid contact with hot surfaces on muffler, cylinder etc.
Contact can result in burns to the skin.
Cleaning the air filter
• Remove the air filter cover and take out the filter. Wash
it clean in warm, soapy water.
• Refit the air filter and air filter cover. Do not forget to
put the air screen back in place. If the grill is missing,
the air cleaner is not properly sealed, and dust can get
into the cylinder.
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
If the machine is used in dusty conditions the air filter
should be soaked in oil. See instructions under the
heading Oiling the air filter.
Oiling the air filter
Always use special filter oil. Filter oil contains a solvent to
make it spread evenly through the filter. You should
therefore avoid skin contact.
Put the filter in a plastic bag and pour the filter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the filter inside the plastic bag and pour
off the excess before fitting the filter to the machine. Never
use common engine oil. This would drain through the filter
quite quickly and collect in the bottom.
Shoulder strap
If the shoulder strap is damaged, it may break while in use
and the machine may fall causing personal injury. Follow
the instructions below to replace the shoulder strap.
1 Remove the clamp from the strap.
2 Run the end of the strap through the hanger.
3 Refit the clamp to the strap.
0,6-0,7
!
WARNING! Check that the thick round
pin in the clamp is inserted in the strap. If
it is inserted incorrectly it may lead to
personal injury.
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