STIHL SP 452, 482
Instruction Manual
Translation of Original Instruction
Manual
Printed on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG 2019
0458-822-0121-A. VA0.E19.
0000008696_001_GB
0458-822-0121-A
English
1
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
Contents
1 Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
2 Guide to Using this Manual
. . . . . . . . . . . . . . . . . . . . . . . . . .
2
2.1 Symbols used with warnings in the text
. . . . . . . . . . . . . .
2
2.2 Symbols in Text
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3 Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3.1 Special harvester
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3.2 Shaft
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
3.3 Carrying System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
3.4 Symbols
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
4 Safety Precautions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
4.1 Warning Signs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
4.2 Intended Use
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
4.3 The Operator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
4.4 Clothing and Equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
4.5 Work Area and Surroundings
. . . . . . . . . . . . . . . . . . . . . . . .
7
4.6 Safe Condition
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
4.7 Fuel Mixture and Refueling
. . . . . . . . . . . . . . . . . . . . . . . . . .
8
4.8 Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
4.9 Transporting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
4.10 Storing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
4.11 Cleaning, Maintenance and Repairs
. . . . . . . . . . . . . . . .
10
5 Preparing Special Harvester for Operation
. . . . . . . . . .
10
5.1 Preparing Special Harvester for Operation
. . . . . . . . . .
10
6 Assembling the Special Harvester
. . . . . . . . . . . . . . . . . .
11
6.1 Mounting and Removing the Shaft
. . . . . . . . . . . . . . . . . .
11
7 Adjusting Special Harvester for User
. . . . . . . . . . . . . . .
12
7.1 Fitting and Adjusting the Carrying System
. . . . . . . . . .
12
8 Mixing Fuel and Refueling the Harvester
. . . . . . . . . . .
13
8.1 Mixing Fuel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
8.2 Fueling the Special Harvester
. . . . . . . . . . . . . . . . . . . . . .
13
9 Starting and Stopping the Engine
. . . . . . . . . . . . . . . . . . .
14
9.1 Selecting the Correct Starting Procedure
. . . . . . . . . . .
14
9.2 Preparing Engine for Start
. . . . . . . . . . . . . . . . . . . . . . . . . .
14
9.3 Starting the Engine
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
9.4 Stopping the Engine
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
10 Checking the Special Harvester
. . . . . . . . . . . . . . . . . . . .
15
10.1 Checking the Controls
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
11 Operating the Special Harvester
. . . . . . . . . . . . . . . . . . . .
16
11.1 Winter Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
11.2 Summer Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
11.3 Holding and Controlling the Special Harvester
. . . . . .
17
11.4 Harvesting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
12 After Finishing Work
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
12.1 After Finishing Work
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
13 Transporting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
13.1 Transporting the Special Harvester
. . . . . . . . . . . . . . . .
17
14 Storing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
14.1 Storing the Special Harvester
. . . . . . . . . . . . . . . . . . . . . .
17
15 Cleaning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
15.1 Cleaning the Special Harvester
. . . . . . . . . . . . . . . . . . . .
18
15.2 Cleaning the Spark Plug
. . . . . . . . . . . . . . . . . . . . . . . . . . .
18
16 Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
16.1 Maintenance Intervals
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
16.2 Lubricating the Pushrod
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
16.3 Adjusting the Throttle Cable
. . . . . . . . . . . . . . . . . . . . . . . .
19
17 Repairing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
17.1 Repairing Special Harvester
. . . . . . . . . . . . . . . . . . . . . . .
19
18 Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
18.1 Troubleshooting the Spezial Harvester
. . . . . . . . . . . . .
20
18.2 Replacing the Air Filter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
18.3 Replacing the Rubber Element on the Hook
. . . . . . . .
21
18.4 Adjusting Idle Speed
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
18.5 Clearing the Combustion Chamber
. . . . . . . . . . . . . . . . .
22
19 Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
19.1 STIHL SP 452 Special Harvester
. . . . . . . . . . . . . . . . . . .
22
19.2 STIHL SP 482 Special Harvester
. . . . . . . . . . . . . . . . . . .
23
0458-822-0121-A
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English
1 Introduction
Dear Customer,
Thank you for choosing STIHL. We develop and
manufacture our quality products to meet our customers’
requirements. The products are designed for reliability even
under extreme conditions.
STIHL also stands for premium service quality. Our
specialist dealers guarantee competent advice and
instruction as well as comprehensive service support.
We thank you for your confidence in us and hope you will
enjoy working with your STIHL product.
Dr. Nikolas Stihl
IMPORTANT: READ BEFORE USE AND KEEP IN A SAFE
PLACE.
2.1 Symbols used with warnings in the text
WARNING
This symbol indicates dangers that can cause serious
injuries or death.
► The measures indicated can avoid serious injuries or
death.
19.3 Noise and Vibration Data
. . . . . . . . . . . . . . . . . . . . . . . . . . .
23
19.4 REACH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
19.5 Exhaust Emissions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
20 Spare Parts and Accessories
. . . . . . . . . . . . . . . . . . . . . . .
24
20.1 Spare Parts and Accessories
. . . . . . . . . . . . . . . . . . . . . . .
24
21 Disposal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
21.1 Disposing of Special Harvester
. . . . . . . . . . . . . . . . . . . . .
24
22 EC Declaration of Conformity
. . . . . . . . . . . . . . . . . . . . . . .
24
22.1 STIHL SP 452, 482 Special Harvester
. . . . . . . . . . . . . .
24
1 Introduction
2 Guide to Using this Manual
0458-822-0121-A
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English
3 Overview
NOTICE
This symbol indicates dangers that can cause damage to
property.
► The measures indicated can avoid damage to property.
2.2 Symbols in Text
3.1 Special harvester
This symbol refers to a chapter in this instruction
manual.
3Overview
1
3
4
14
12
#
21
20
11
10
15
7
13
19
8
9
5
6
2
16
17
18
0000-GXX-8702-A0
0458-822-0121-A
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English
3 Overview
1 Handlebar
For holding, controlling and carrying the special
harvester.
2 Carrying Hook
For attaching carrying system.
3 Stop Switch
Shuts off the engine.
4 Throttle Trigger Lockout
Unlocks the throttle trigger.
5 Throttle Trigger
Controls engine speed.
6 Carrying Ring
For attaching carrying system.
7Cover
Covers the spark plug.
8 Spark Plug Boot
Connects ignition lead to spark plug
9Spark Plug
Ignites fuel-air mixture in the engine.
10 Shutter
Serves to select summer or winter operating mode.
11 Fuel Tank Cap
Closes the fuel tank.
12 Air Filter
Filters the air entering the engine.
13 Filter Cover
Covers the air filter.
14 Machine Support
For resting special harvester on the ground.
15 Starter Grip
Serves to crank the engine.
16 Manual Fuel Pump
Eases engine starts.
17 Choke Control
Enriches mixture for engine starts.
18 Pushrod
Transmits reciprocating motion to shaft.
19 Grease Nipple
Feeds STIHL gear grease into gearbox.
20 Control Handle
For operating, holding and controlling the special
harvester.
21 Muffler
Reduces machine noise emissions.
# Rating Label with Serial Number
3.2 Shaft
1 Shaft
Transmits reciprocating motion to hook.
2 Handle Hose
For holding and controlling the shaft.
3 Coupling Sleeve
Connects shaft to pushrod.
4Hook
Transmits reciprocating motion to hook.
2
1
4
3
0000-GXX-8703-A0
0458-822-0121-A
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English
4 Safety Precautions
3.3 Carrying System
1 Carrying System
For carrying the special harvester.
2 Ring
Attaches to carrying hook on special harvester.
3 Carabiner
Attaches to carrying ring on special harvester.
3.4 Symbols
Meanings of symbols that may be on the special harvester:
4.1 Warning Signs
4.1.1 Warning Symbols
Meanings of warning signs on the special harvester:
4.2 Intended Use
The STIHL SP 452 and SP 482 special harvesters are
designed to harvest olives, nuts and other fruits.
This symbol marks the fuel tank.
This symbol denotes the manual fuel pump.
Shutter is in winter mode in this position.
Shutter is in summer mode in this position.
This symbol marks the stop switch.
1
2
3
0000-GXX-8704-A0
Engine is operated with the choke control in this
position.
Engine is started with the choke control in this
position.
Engine is made ready for start with the choke control
in this position.
This symbol marks the filler opening for STIHL
gear grease.
4 Safety Precautions
Observe safety notices and take the necessary
precautions.
Read, understand and save the instruction
manual.
Wear safety glasses, hearing protection and a
hard hat.
Observe safety notices on vibrations and take
the necessary precautions.
0458-822-0121-A
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English
4 Safety Precautions
WARNING
￭ Using a special harvester for purposes for which it is not
designed may result in serious or fatal injuries and
damage to property.
► Use the special harvester as described in this
instruction manual.
4.3 The Operator
WARNING
￭ Users who have had no instruction cannot recognize or
assess the risks involved in using the special harvester.
The user or other persons may sustain serious or fatal
injuries.
► If you lend the special harvester to another person:
Always give them the instruction manual.
► Make sure the user meets the following requirements:
– The user must be rested.
– The user must be in good physical condition and
mental health to operate and work with the special
harvester. If the user’s physical, sensory or mental
ability is restricted, he or she may work only under the
supervision of or as instructed by a responsible
person.
– The user is able to recognize and assess the risks
involved in using the special harvester.
– The user must be of legal age or is being trained in a
trade under supervision in accordance with national
rules and regulations.
– The user has received instruction from a STIHL
servicing dealer or other experienced user before
working with the special harvester for the first time.
– The user must not be under the influence of alcohol,
medication or drugs.
► If you have any queries: Contact a STIHL servicing
dealer for assistance.
￭ The special harvester’s ignition system produces an
electromagnetic field. This field may interfere with some
pacemakers. This can result in serious or fatal injuries.
► If the user has a pacemaker: Make sure the pacemaker
is not affected.
4.4 Clothing and Equipment
WARNING
￭ Long hair can be pulled into the special harvester during
operation. This can result in serious injuries.
► Tie up and confine long hair so that it cannot be
entangled in the special harvester.
￭ Objects can be thrown through the air at high speed
during operation. This can result in personal injury.
► Wear a face shield.
► Wear a long-sleeved, snug-fitting upper garment and
long trousers.
￭ Noise occurs during operation. Noise can harm your
hearing.
￭ Falling objects can cause head injuries.
► Read, understand and save the instruction
manual.
► Wear close-fitting safety glasses. Suitable
safety glasses that have been tested and
labeled in accordance with EN 166 or
national standards are available from
retailers.
► Wear hearing protection.
► If there is a danger of falling objects during
operation: Wear a safety hard hat.
0458-822-0121-A
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English
4 Safety Precautions
￭ Dust can be whipped up during operation: Whipped up
dust can damage the respiratory passages and cause
allergic reactions.
► If dust is generated: Wear a dust respirator mask.
￭ Unsuitable clothing can snag on wood, brush or the
special harvester. Not wearing personal protective
equipment may result in serious injury.
► Wear snug-fitting clothing.
► Do not wear a scarf or jewelry.
￭ Wearing unsuitable footwear may cause you to slip or
stumble. This can result in personal injury.
► Wear sturdy enclosed footwear with non-slip soles.
4.5 Work Area and Surroundings
WARNING
￭ Bystanders, children and animals cannot recognize or
assess the dangers of the special harvester or flying
debris. Bystanders, children and animals may be seriously
injured and damage to property may occur.
► Keep bystanders, children and animals away from the
work area.
► Do not leave the special harvester unattended.
► Make sure that children cannot play with the special
harvester.
￭ Hot exhaust gas is emitted through the muffler while the
engine is running. Hot exhaust gas can ignite easily
flammable materials and cause a fire.
► Keep exhaust gas well away from easily flammable
materials.
4.6 Safe Condition
4.6.1 Special harvester
The special harvester is in a safe condition if the following
points are observed:
– The special harvester is not damaged.
– There is no fuel leaking from the machine.
– The fuel tank cap is closed.
– The special harvester is clean.
– The controls function properly and have not been
modified.
– Only original STIHL accessories designed for this special
harvester model are fitted.
– Accessories are properly mounted.
WARNING
￭ If components do not comply with safety requirements,
they will no longer function properly, safety devices may
be rendered inoperative and fuel leaks may occur. This
can result in serious or fatal injuries.
► Work only with an undamaged special harvester.
► If fuel is leaking from the machine: Do not use the
special harvester and contact a STIHL dealer for
assistance.
► Close the fuel tank cap.
► If the special harvester is dirty: Clean the harvester.
► Do not modify the special harvester.
► If the controls do not function properly: Do not work with
the special harvester.
► Check that the shaft and hook are correctly fitted.
► Only fit original STIHL accessories designed for this
special harvester model.
► Mount accessories as described in this instruction
manual or the instructions supplied with the accessory.
► Never insert objects in the special harvester’s openings.
► If you have any queries: Contact a STIHL servicing
dealer for assistance.
0458-822-0121-A
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4 Safety Precautions
4.7 Fuel Mixture and Refueling
WARNING
￭ This special harvester requires a fuel mixture of gasoline
and two-stroke engine oil. Fuel mixture and gasoline are
extremely flammable. If fuel mixture or gasoline make
contact with open fire or hot objects, they can cause a fire
or explosions. This can result in serious or fatal injuries
and damage to property.
► Protect fuel mixture and gasoline from heat and fire.
► Do not spill fuel mixture and gasoline.
► Do not smoke.
► Never refuel near a fire.
► Shut off the engine and allow it to cool down before
refueling.
► Start the engine at least 3 meters from the fueling spot,
outdoors only.
￭ Inhaling fuel fumes and gasoline fumes can have toxic
effects.
► Avoid inhaling fuel fumes or gasoline fumes.
► Refuel in a well-ventilated location.
￭ The special harvester becomes hot during operation. The
fuel expands and excess pressure can build up in the tank.
Fuel can escape as a spray when the fuel tank cap is
opened. The escaping fuel can ignite. This can result in
serious injuries.
► Allow the special harvester to cool down first and then
open the tank cap carefully.
￭ Clothing that has been in contact with fuel or gasoline is
more easily flammable. This can result in serious or fatal
injuries and damage to property.
► If your clothing comes into contact with fuel or gasoline:
Change your clothing.
￭ Fuel mix, gasoline and two-stroke engine oil can harm the
environment.
► Do not spill fuel, gasoline or two-stroke engine oil.
► Dispose of fuel mix, gasoline and two-stroke engine oil
in accordance with local regulations and environmental
requirements.
￭ Fuel, gasoline or two-stroke engine oil can cause irritation
if they come into direct contact with the skin or eyes.
► Avoid contact with fuel, gasoline and two-stroke engine
oil.
► In case of contact with the skin: Wash affected areas
with plenty of water and soap.
► In case of contact with the eyes: Rinse eyes with plenty
of water for at least 15 minutes and seek medical
advice.
￭ The special harvester’s ignition system produces sparks.
Unconfined sparks may cause a fire or an explosion in an
easily combustible or explosive environment. This can
result in serious or fatal injuries and damage to property.
► Use the spark plugs described in this instruction
manual.
► Insert and tighten down the spark plug.
► Connect the spark plug boot and press it down firmly.
0458-822-0121-A
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4 Safety Precautions
￭ The special harvester can be damaged if it is run on a fuel
mixture consisting of unsuitable gasoline or an unsuitable
two-stroke engine oil or if an incorrect mix ratio of gasoline
and two-stroke engine oil is used.
► Mix the fuel as described in this instruction manual.
￭ The mixture of gasoline and two-stroke engine oil can
separate if it is stored for a long period. The special
harvester can be damaged if it is used with a fuel mix that
has separated.
► Before refueling the special harvester: Thoroughly mix
the fuel.
► Use a mixture of gasoline and two-stroke engine oil that
is not older than 30 days (STIHL MotoMix: 2 years).
4.8 Operation
WARNING
￭ If the engine is not started properly, the user may lose
control of the special harvester. This can result in serious
injuries.
► Start the engine as described in this instruction manual.
￭ The user cannot concentrate on the work in certain
situations. The user can lose control of the special
harvester, stumble or fall and be seriously injured.
► Work calmly and carefully.
► If light and visibility are poor: Do not work with the
special harvester.
► Operate the special harvester alone.
► Watch out for obstacles.
► Stand on the ground while working and keep a good
balance.
► If you begin to feel tired: Take a break.
￭ Exhaust gas is produced when the engine is running.
Breathing in exhaust gas can have toxic effects.
► Avoid inhaling exhaust gas.
► Operate the special harvester in a well ventilated
location.
► In the event of nausea, headache, visual disturbances,
problems with hearing or dizziness: Stop work and seek
medical advice.
￭ The user’s ability to hear and assess noises is restricted
when wearing hearing protection with the engine running.
► Work calmly and carefully.
￭ The user will not be able to control the harvester properly
if it is operated with the choke control in position . This
can result in serious injuries.
► Check that the choke control is in position during
operation.
► Start the engine as described in this instruction manual.
￭ If the moving hook makes contact with a hard object, the
special harvester may be pushed back toward the
operator. The reactive forces that occur can cause the
user to lose control of the special harvester and be
seriously injured.
► Hold the special harvester firmly with both hands.
￭ If the behavior of the special harvester changes during
operation or feels unusual, it may no longer be in a safe
condition. This can result in serious injuries and damage
to property.
► Stop work and contact your STIHL dealer for
assistance.
￭ Vibrations may occur while using the special harvester.
► Take regular breaks.
► If signs of circulation problems occur: Seek medical
advice.
► Wear gloves.
0458-822-0121-A
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5 Preparing Special Harvester for Operation
￭ Note that the hook continues to move for a short period
after you release the throttle trigger. This can result in
serious injuries.
► Wait for the hook to come to a standstill.
￭ In an emergency, the user may panic and not put the
carrying system down. This can result in serious injuries.
► Practice removing and putting down the carrying
system.
4.9 Transporting
WARNING
￭ The special harvester may turn over or shift during
transport. This may result in personal injuries and damage
to property.
► Shut off the engine.
► Secure the special harvester with lashing straps or a net
to prevent it turning over and moving.
￭ The muffler and engine may be hot after a period of
operation. There is a risk of burn injuries.
► Carry the special harvester by the control handle and
handlebar with the hook facing forward.
4.10 Storing
WARNING
￭ Children are not aware of and cannot assess the dangers
of the special harvester and can be seriously injured.
► Shut off the engine.
► Store the special harvester out of the reach of children.
￭ Dampness can corrode the electrical contacts on the
special harvester and other metal components. The
special harvester can be damaged.
► Store the special harvester in a clean and dry condition.
4.11 Cleaning, Maintenance and Repairs
WARNING
￭ The special harvester may start operating unintentionally
if the engine is running during cleaning, maintenance or
repair operations. This can result in serious injuries and
damage to property.
► Shut off the engine.
￭ The muffler and engine may be hot after a period of
operation. This can result in burn injuries.
► Wait until the muffler and engine cool down.
￭ Aggressive cleaning agents, cleaning with a jet of water or
pointed objects can damage the special harvester. If the
special harvester is not cleaned correctly, components
may no longer function properly or safety devices may be
rendered inoperative. This can result in serious injuries.
► Clean the special harvester as described in this
instruction manual.
￭ If the special harvester and hook are not maintained or
repaired as described in this instruction manual,
components may no longer function properly or safety
devices may be rendered inoperative. This can result in
serious or fatal injuries.
► Service or repair the special harvester and hook as
described in this instruction manual.
5.1 Preparing Special Harvester for Operation
Perform the following steps before starting work:
► Make sure the special harvester is in a safe condition,
@ 4.6.1.
.
► Clean the special harvester, @ 15.1.
► Mount the shaft, @ 6.1.1.
► Refuel the special harvester, @ 8.2.
5 Preparing Special Harvester for
Operation
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6 Assembling the Special Harvester
► Fit and adjust the carrying system, @ 7.1.
► Check the controls, @ 10.1.
► If you cannot carry out these steps: Do not use your
special harvester and contact your STIHL servicing dealer
for assistance.
6.1 Mounting and Removing the Shaft
6.1.1 Mounting the Shaft
► Shut off the engine.
► Line up the shaft (3) and special harvester.
► Fit and tighten the coupling sleeve (2).
► Apply open end wrench (1) to the pushrod.
► Apply open end wrench (2) to the coupling sleeve.
► Tighten down the shaft firmly.
6.1.2 Removing the Shaft
► Shut off the engine.
► Apply open end wrench (1) to the pushrod.
► Apply open end wrench (2) to the coupling sleeve.
► Loosen and unscrew the shaft.
6 Assembling the Special Harvester
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7 Adjusting Special Harvester for User
7.1 Fitting and Adjusting the Carrying System
► Fit the carrying system on your left shoulder so that the
carabiner (2) is on the right side of your body and the ring
(3) is on your left side.
► Adjust the length of the straps so that the carabiner (2)
and ring (3) are at about the same height as your hip.
► Shut off the engine.
► Attach the carabiner (1) to the carrying ring (2).
► Attach the ring (3) to the carrying hook (4).
► Adjust the carrying system so that the shaft and hook are
inclined upward.
7 Adjusting Special Harvester for User
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8 Mixing Fuel and Refueling the Harvester
8.1 Mixing Fuel
This special harvester requires a fuel mixture of gasoline
and two-stroke engine oil in a ratio of 50:1.
STIHL recommends you use STIHL MotoMix.
If you mix the fuel yourself, use only STIHL two-stroke
engine oil or another high-performance engine oil in
accordance with JASO FB, JASO FC, JASO FD, ISO-L-
EGB, ISO-L-EGC or ISO-L-EGD.
STIHL specifies STIHL HP Ultra two-stroke engine oil or an
equivalent high-performance engine oil in order to maintain
emission limits over the machine’s service life.
► Make sure that the octane number of the gasoline is at
least 90 RON and the ethanol content is not more than
10%.
► Make sure the two-stroke engine oil you are using meets
the requirements.
► Depending on the required amount of fuel, determine the
correct amounts of two-stroke engine oil and gasoline in a
mix ratio of 50:1. Examples for fuel mixes:
– 1 liter gasoline, 20 ml two-stroke engine oil
– 3 liters gasoline, 60 ml two-stroke engine oil
– 5 liters gasoline, 100 ml two-stroke engine oil
► Pour two-stroke engine oil into a clean approved fuel
canister first and then add gasoline.
► Thoroughly mix the fuel.
8.2 Fueling the Special Harvester
► Shut off the engine.
► Place your special harvester on a level surface so that the
fuel tank cap faces up.
► Use a damp cloth to clean the tank cap and the area
around it.
► Turn the tank cap counterclockwise until it can be
removed.
► Remove the tank cap.
NOTICE
Bright light, sunlight and extreme temperatures can cause
the fuel mix to separate much faster. The special harvester
can be damaged if it is used with a fuel mix that has become
separated.
► Thoroughly mix the fuel.
► Do not use fuel mix that has been stored for more than 30
days.
► Fill the tank to within no more than 15 mm of the brim,
taking care not to spill any fuel.
8 Mixing Fuel and Refueling the
Harvester
A video is available for this chapter
www.stihl.com/sxpweh
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9 Starting and Stopping the Engine
► Fit the tank cap on the tank opening.
► Turn the tank cap clockwise and tighten it down firmly by
hand.
The fuel tank is closed.
9.1 Selecting the Correct Starting Procedure
When must the engine be prepared for starting?
The engine must be prepared for starting if one of the
following conditions apply:
– The engine is at ambient temperature.
– The engine stopped when accelerated for the first time.
– The engine stopped because the fuel tank was empty.
► Prepare engine for start and then start the engine.
When can the engine be started without preparation?
The engine can be started without preparation if it has been
running for at least 1 minute and only shut down for a short
work break.
► Start the engine.
9.2 Preparing Engine for Start
► Select the correct starting procedure.
► Place the special harvester on a level surface and make
sure the hook is not touching the ground or other objects.
► Press the manual fuel pump bulb (1) at least five times.
► Move the choke control (2) to position .
► Hold the special harvester with your left hand on the
engine and press it against the ground.
► Pull the starter grip slowly with your right hand until you
feel it engage.
► Pull the starter grip quickly and allow the starter rope to
rewind several times until the engine fires and stops.
9.3 Starting the Engine
► Select the correct starting procedure.
9 Starting and Stopping the Engine
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10 Checking the Special Harvester
► Place the special harvester on a level surface and make
sure the hook is not touching the ground or other objects.
► Move the choke control (1) to position .
► Press the special harvester against the ground with your
left hand.
► Pull the starter grip slowly with your right hand until you
feel it engage.
► Pull the starter grip quickly and allow the starter rope to
rewind several times until the engine runs.
► Depress the throttle trigger lockout (3) and hold it there.
► Blip the throttle trigger (2).
The choke control (1) springs to position . The engine
runs at idling speed.
► If the engine does not start: Prepare the engine for the
start and then try again to start the engine.
9.4 Stopping the Engine
► Release the throttle trigger (1).
The engine runs at idling speed.
► Depress the stop switch (2).
The engine stops.
► If the engine does not stop:
► Move the choke control to position .
The engine stops.
► Do not use your special harvester and contact your
STIHL servicing dealer for assistance.
The stop switch is defective.
10.1 Checking the Controls
Throttle trigger lockout and throttle trigger
► Shut off the engine.
► Attempt to pull the trigger without depressing the lockout
lever.
► If the trigger can be pulled: Do not use your special
harvester and contact your STIHL servicing dealer for
assistance.
The throttle trigger lockout is defective.
► Press down the throttle trigger lockout and hold it there.
► Depress the throttle trigger.
► Release the throttle trigger and throttle trigger lockout.
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11 Operating the Special Harvester
► If the trigger or trigger lockout is stiff or does not spring
back to the idle position: Do not use your special harvester
and contact your STIHL servicing dealer for assistance.
Trigger or trigger lockout is faulty.
Throttle cable adjustment
► Start the engine.
► Attempt to pull the trigger without depressing the lockout
lever.
► If the engine accelerates: Adjust the throttle cable.
Throttle cable adjustment is not correct.
Stopping the engine
► Start the engine.
► Depress the stop switch.
The engine stops.
► If the engine does not stop:
► Move the choke control to position .
The engine stops.
► Do not use your special harvester and contact your
STIHL servicing dealer for assistance.
The stop switch is defective.
11.1 Winter Operation
The carburetor may ice up if the engine is operated at
temperatures below +10°C. The shutter must be set to the
winter mode so that carburetor is additionally heated by
warm air from around the engine.
NOTICE
The engine may overheat if is operated in the winter mode
at temperatures above +10°C.
► Change setting to summer mode.
► Shut off the engine.
► Take out the screw (1).
► Pull out the shutter (2).
► Hold the shutter (2) so the snowflake points to the mark
(3).
► Fit the shutter.
► Fit the screw (1).
11.2 Summer Operation
The shutter must be set to summer mode when working at
temperatures above +10°C.
► Shut off the engine.
► Take out the screw (1).
► Pull out the shutter (2).
► Hold the shutter (2) so the sun points to the mark (3).
► Fit the shutter.
11 Operating the Special Harvester
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12 After Finishing Work
► Fit the screw (1).
11.3 Holding and Controlling the Special Harvester
► Attach the carrying system.
► Hold the special harvester firmly with your right hand on
the control handle – wrap your thumb around the handle.
► Hold the special harvester with your left hand on the
handlebar – wrap your thumb around the handlebar.
11.4 Harvesting
► Attach hook to a branch.
► Harvest slowly and calmly.
12.1 After Finishing Work
► Shut off the engine.
► Allow the special harvester to cool down.
► If the special harvester is wet: Allow the special harvester
to dry.
► Clean the harvester.
► Clean the air filter.
► Clean the hook.
13.1 Transporting the Special Harvester
► Shut off the engine.
► Carry the special harvester by the control handle and
handlebar with the hook facing forward.
► Transporting the special harvester in a vehicle: Secure the
special harvester so that it cannot turn over or move.
14.1 Storing the Special Harvester
► Shut off the engine.
► Check the following points when storing the special
harvester:
– Special harvester is out of the reach of children.
– Special harvester is clean and dry.
If you store the special harvester for more than 3 months:
► Remove the shaft.
► Open the fuel tank cap.
► Drain the fuel tank.
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13 Transporting
14 Storing
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15 Cleaning
► Close the fuel tank.
► Have fuel tank cleaned by a STIHL servicing dealer.
► Start the engine and run it at idling speed until it stops.
15.1 Cleaning the Special Harvester
► Shut off the engine.
► Allow the special harvester to cool down.
► Clean the special harvester with a damp cloth or STIHL
resin solvent.
► Clean cooling air slots with a soft brush.
15.2 Cleaning the Spark Plug
► Shut off the engine.
► Allow the special harvester to cool down.
► Take out the screw (1).
► Remove the cover (2).
► Pull off the spark plug boot (3).
► If area around the spark plug (4) is dirty: Clean it with a
damp cloth.
► Unscrew the spark plug (4).
► Clean the spark plug with a damp cloth.
► If the spark plug is corroded: Install a new spark plug.
► Fit the spark plug and tighten it down firmly.
► Connect the spark plug boot (3) and press it down firmly.
► Fit the cover (2) in position.
► Insert and tighten down the screw (1) firmly.
16.1 Maintenance Intervals
The maintenance intervals are dependent on the
environmental and operating conditions. STIHL
recommends the following maintenance intervals:
After every 100 hours of operation
► Install a new spark plug.
► Have rubber buffer on handlebar replaced by a STIHL
servicing dealer.
► Have screw joints checked by a STIHL servicing dealer.
After every 150 hours of operation
► Lubricate the pushrod.
Monthly
► Have fuel tank cleaned by a STIHL servicing dealer.
► Have pickup body (filter) in fuel tank cleaned by a STIHL
servicing dealer.
Every 12 months
► Have pickup body (filter) in fuel tank replaced by a STIHL
servicing dealer.
15 Cleaning
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16 Maintenance
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