Stihl SP 81 Bedienungsanleitung

Instruction Manual

STIH)

STIHL SP 81

BA_SP81_01_U_C6.book Seite 0 Mittwoch, 15. März 2006

1SP 81

English

BA_SE_109_004_01_02.fmPrinted on chlorine-free paper.

Printing inks contain vegetable oils; paper can be recycled.

04584130121. M0. F6.

STIHl

Contents

Guide to Using this Manual .............. 2

Safety Precautions and

Working Techniques ......................... 3

Approved Power Tool

Attachments ...................................... 9

Using the Harvester ........................ 12

Assembling the Machine ................ 13

Adjusting the Throttle Cable ........... 14

Fuel ................................................ 15

Fueling ............................................ 16

Fitting the Harness ......................... 17

Starting / Stopping the Engine ........ 17

Operating Instructions .................... 20

Cleaning the Air Filter ..................... 21

Adjusting the Carburetor ................ 21

Spark Arresting Screen

in Muffler ......................................... 23

Checking the Spark Plug ................ 23

Replacing the Starter Rope

and Rewind Spring ......................... 24

Storing the Machine ........................ 27

Lubricating the Gearbox ................ 27

Maintenance ................................... 28

Maintenance Chart ......................... 30

Minimize Wear and

Avoid Damage ................................ 31

Main Parts and Controls ................. 32

Specifications ................................. 33

Special Accessories ....................... 34

Maintenance and Repairs ............... 34

Quality Certification ........................ 34

Dear Customer,

Thank you for choosing a quality

engineered STIHL product.

This machine has been built using

modern production techniques and

comprehensive quality assurance.

Every effort has been made to ensure

your satisfaction and troublefree use

of the machine.

Please contact your dealer or our

sales company if you have any

queries concerning your machine.

Hans Peter Stihl

English

SP 81

Pictograms

All the pictograms attached to the

machine are shown and explained in

this manual.

The operating and handling instructions

are supported by illustrations.

Symbols in text

The individual steps or procedures

described in the manual may be marked

in different ways:

:A bullet marks a step or procedure

without direct reference to an

illustration.

A description of a step or procedure that

refers directly to an illustration may

contain item numbers that appear in the

illustration.

Example:

Loosen the screw (1)

Lever (2) ...

In addition to the operating instructions,

this manual may contain paragraphs

that require your special attention. Such

paragraphs are marked with the

symbols described below:

Warning where there is a risk of an

accident or personal injury or

serious damage to property.

Caution where there is a risk of

damaging the machine or its

individual components.

Note or hint which is not essential

for using the machine, but may

improve the operator’s under-

standing of the situation and result

in better use of the machine.

Note or hint on correct procedure in

order to avoid damage to the

environment.

Equipment and features

This instruction manual may refer to

several models with different

features. Components that are not

installed on all models and related

applications are marked with an

asterisk (*). Such components may

be available as special accessories

from your STIHL dealer.

Engineering improvements

STIHL’s philosophy is to continually

improve all of its products. As a result,

engineering changes and improvements

are made from time to time. If the

operating characteristics or the

appearance of your machine differ from

those described in this manual, please

contact your STIHL dealer for

assistance.

Therefore some changes, modifications

and improvements may not be covered

in this manual.

Guide to Using this Manual

3SP 81

English

Special safety

precautions must be

observed when working

with this power tool

because the rakes move

at a high stroke rate.

It is important that you

read and understand the

instruction manual before

using the unit for the first

time. Keep the manual in

a safe place for future

reference. Non-observance of the safety

precautions in the instruction manual

may cause serious or even fatal injury.

Always observe local safety regulations,

standards and ordinances.

If you have not used this type of power

tool before: Have your dealer or other

experienced user show you how to

operate your power tool or attend a

special course of training in power tool

operation.

Minors should never be allowed to use a

power tool.

Bystanders, especially children, and

animals should not be allowed in the

area where a power tool is in use.

When the power tool is not in use (work

break), shut it off so that it does not

endanger others and secure it against

unauthorized use.

The power tool user is responsible for

avoiding injury to third parties or damage

to their property.

Lend or rent your power tool only to

persons who are familiar with this model

and its operation and only with the

instruction manual.

To operate the power tool you must be

rested, in good physical condition and

mental health.

If you have any condition that might be

aggravated by strenuous work, check

with your doctor before operating a

power tool.

Persons with pacemakers only: The

ignition system of your unit produces an

electromagnetic field of a very low

intensity. This field may interfere with

some pacemakers. To reduce health

risks, STIHL recommends that persons

with pacemakers consult their physician

and the pacemaker manufacturer before

operating this tool.

Do not operate the power tool if you are

under the influence of any substance

(drugs, alcohol) which might impair

vision, dexterity or judgment.

Use your power tool only for harvesting

fruit about the size of coffee berries,

nuts, olives, sloes, etc.

It must not be used for any other

purpose since it may result in accidents

or damage to the machine. Never

attempt to modify your power tool in any

way since this may result in accidents or

damage to the machine.

Safety Precautions and

Working Techniques

English

SP 81

Only mount tools and accessories that

are explicitly approved for this power

tool model by STIHL or are technically

identical. If you have any questions in

this respect, consult a servicing dealer.

To reduce the risk of accidents or

damage to the machine, use only high

quality tools and replacement parts.

STIHL recommends the use of STIHL

original tools and accessories. The

characteristics of these components are

specifically designed to match your

machine and meet your performance

requirements.

Clothing and Equipment

Wear proper protective clothing and

equipment.

Clothing must be sturdy

and snug-fitting but allow

freedom of movement,

e.g. an overall and jacket

combination, do not wear

a coat.

Avoid scarves, neckties, jewellery or

anything that could get caught on

branches or brush or moving parts of the

machine. Tie up and confine long hair

(e.g. with a hair net, cap, hard hat, etc.)

Wear sturdy footwear with non-slip

soles.

Wearasafety hard hat

where there is a danger of

head injuries from falling

objects. To reduce the risk

of injury to your eyes from

swirled up or thrown

objects, always wear a face shield and

safety glasses.

Warning! A face shield alone does not

provide adequate eye protection.

Wear hearing protection, e.g. earplugs

or ear muffs.

Wear heavy-duty

gloves, preferably made

of leather.

STIHL offers a comprehensive range of

protective clothing and equipment.

Transporting the Unit

Always turn off the engine.

Carry the unit suspended from harness

or by the drive tube. Avoid touching hot

parts of the machine, especially the

muffler and gear housing – you could

suffer serious burns.

Transporting in a vehicle: Properly

secure your unit to prevent turnover, fuel

spillage and damage.

Fueling

Gasoline is an

extremely flammable

fuel. Keep clear of naked

flames and fire. Do not

spill any fuel – do not

smoke.

Always shut off the engine before

refueling.

Do not fuel a hot engine – fuel may spill

and cause a fire.

Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly and avoid fuel spillage.

5SP 81

English

Fuel your power tool in a well-ventilated

area, outdoors only. If you spill fuel, wipe

the machine immediately – if fuel gets on

your clothing, change immediately.

Your power tool comes standard with

either a screw-type or bayonet-type fuel

cap.

After fueling, tighten down

the screw-type fuel cap as

securely as possible.

Insert the fuel cap with

hinged grip (bayonet type

cap) correctly in the

opening, turn it clockwise

as far as stop and fold the

grip down.

This reduces the risk of unit vibrations

causing the fuel cap to loosen or come

off and spill quantities of fuel.

To reduce the risk of serious or fatal

burn injuries, check for fuel leakage. If

fuel leakage is found, do not start or run

the engine until leak is fixed.

Before Starting

Check that your power tool is properly

assembled and in good condition – refer

to appropriate chapters in the instruction

manual:

– Slide control / stop switch must

move easily to STOP or 0

– Smooth action of throttle trigger

interlock (if fitted) and throttle trigger

– throttle trigger must return

automatically to idle position.

– Rakes: Securely mounted and in

good condition (clean, move freely,

not warped or cracked).

– Check that spark plug boot is secure

– a loose boot may cause arcing

that could ignite combustible fumes

and cause a fire.

– Never attempt to modify the controls

or safety devices.

– Keep the handles dry and clean,

free from oil and dirt, for safe

control.

– Adjust harness to suit your height

and reach. See chapter on "Fitting

the Harness“.

To avoid the risk of accidents and

personal injury, do not operate your unit

if it is not in a safe operating condition.

Be prepared for an emergency when

wearing a harness: Practise quickly

setting down the unit. To avoid damage,

do not throw the machine to the ground

when practising.

Starting the Engine

Start the engine at least 3 meters from

the fueling spot, outdoors only.

Place the unit on firm ground in an open

area. Make sure you have good balance

and secure footing. Hold the unit

securely – be sure the rakes are clear of

the ground and all other obstructions

because they may begin to run when the

engine starts – also allow space for

movement of the rakes.

English

SP 81

Your power tool is a one-person unit. To

reduce the risk of injury from thrown

objects or contact with the rakes, do not

allow other persons within a radius of 5

meters of your own position – even

when starting.

To reduce the risk of injury, avoid contact

with the rakes.

Do not drop start the power tool. The

correct starting procedure is described

in your instruction manual. Note that the

rakes continue to run for a short period

after you let go of the throttle trigger

(flywheel effect).

Check the idle speed setting. The rakes

must not move when the engine is idling

with the throttle trigger released.

To reduce risk of fire, keep hot exhaust

gases and hot muffler away from easily

combustible materials (e.g. wood chips,

bark, dry grass, fuel).

Holding and Controlling the

Machine

Always hold the unit firmly with both

hands on the handles. Make sure you

always have good balance and secure

footing.

Wrap your fingers and thumbs around

the handles. Right hand on the control

handle, left hand on the handle on the

drive tube. Left handers should follow

these instructions too.

The machine can be carried on a

harness to relieve the load on the

operator’s arms.

During Operation

In the event of imminent danger or in an

emergency, switch off the engine

immediately – move the slide control /

stop switch to STOP or 0.

To reduce the risk of injury from falling

objects, do not allow bystanders within

5 meters of your own position.

Make sure the idle speed setting is

correct. The rakes must not move when

the engine is idling with the throttle

trigger released.

Check and correct the idle speed setting

at regular intervals. If the rakes still

move, have your dealer check your

machine and make proper adjustments

or repairs.

Take special care in slippery conditions

– damp, snow, ice, on slopes, uneven

ground, etc.

Watch out for obstacles: Roots, tree

stumps or holes which could cause you

to trip or stumble.

Make sure you always have firm and

secure footing.

413BA002 KN413BA001 KN

7SP 81

English

When working at heights:

– Use a lift bucket

– Never work on a ladder

– Never work in the tree

– Never work on an insecure support

– Never operate your unit with one

hand

Be particularly alert and cautious when

wearing hearing protection because

your ability to hear warnings (shouts,

alarms, etc.) is restricted.

To reduce the risk of accidents, take a

break in good time to avoid tiredness or

exhaustion.

Work calmly and carefully – in daylight

conditions and only when visibility is

good – ensure you do not endanger

others – stay alert at all times.

Your power tool produces

toxic exhaust fumes as

soon as the engine is

running. These fumes

may be colorless and

odorless. Never run the

engine indoors or in poorly ventilated

locations, even if your model is equipped

with a catalytic converter.

To reduce risk of fire, do not smoke

while operating or standing near your

power tool. Note that combustible fuel

vapor may escape from the fuel system.

If your power tool is subjected to

unusually high loads for which it was not

designed (e.g. heavy impact or a fall),

always check that it is in good condition

before continuing work – see also

“Before Starting”.

Check in particular that the fuel system

is properly sealed (no leaks) and the

safety devices are working properly. Do

not continue operating your power tool if

it is damaged. In case of doubt, have the

machine checked by your servicing

dealer.

Do not operate your power tool with the

starting throttle lock engaged as you do

not have control of the engine speed in

this position.

Shut off the engine before leaving the

machine unattended.

If the rakes become blocked: Release

the throttle trigger – shut off the engine –

clear the blockage.

Opening the throttle while the rakes are

blocked increases the load and reduces

engine speed. The clutch then slips

continuously and this causes

overheating and damage to important

components (e.g. clutch, polymer

housing components) – and this can

increase the risk of injury from the rakes

moving while the engine is idling.

Keep the rakes clear of foreign objects –

such objects may be caught and thrown

and damage the rakes.

English

SP 81

Check the rakes and drive shaft at

regular short intervals during operation

or immediately if there is a noticeable

change in the tool’s behavior:

– Turn off the engine and hold the unit

firmly.

– Check condition and tightness, look

for cracks.

– Replace damaged parts

immediately, even if they have only

superficial cracks.

– To reduce the risk of injury, always

shut off the engine and remove the

spark plug boot before replacing

rake components.

Never continue using or attempt to

repair a damaged or cracked rake.

Vibrations

The function of this

harvester causes

vibrations. Some of these

vibrations are transmitted

to the handles. Therefore,

the permissible period of

daily use for one operator is restricted.

It is not possible to give a general

recommendation for the period of use

because it is influenced by a number of

factors.

The period of use is extended by:

– Protecting your hands (warm

gloves).

– Taking regular work breaks.

The period of use is shortened by:

– Personal disposition to poor

circulation – symptoms: frequent

cold fingers, tingling sensations.

– Low outside temperatures

– The force with which the handles

are held. Gripping the handles with

excessive pressure restricts blood

circulation.

STIHL recommends that one and the

same operator uses the unit for only a

short period per workday. Operators in

a work group should share the work by

rotating at regular intervals.

Seek medical advice immediately if any

of the following symptoms appear:

– Fingers turning white – especially in

cold weather.

– Tingling sensations and numbness

in fingers.

– Constant pains in muscles or joints.

– Difficulty gripping or holding small

objects, such as screws, nails, etc.

Operators with the above symptoms

should not use the machine until further

notice.

9SP 81

English

Maintenance and repairs

The machine must be serviced regularly.

Do not attempt any maintenance or

repair work not described in your

Owner’s Manual. All other work should

be carried out by a servicing dealer.

STIHL recommends that maintenance

and repair work be carried out only by

authorized STIHL dealers. STIHL

dealers receive regular training and are

supplied with technical information.

Use only high-quality replacement parts,

in order to avoid the risk of accidents or

damage to the machine. Contact a

dealer if in doubt.

STIHL recommends the use of genuine

STIHL spare parts. Such parts have

been optimized for the machine and the

user's requirements.

Before starting any maintenance or

repair work and before cleaning the

machine, always stop the engine and

disconnect the spark plug boot to

avoid all risk of injury if the engine

starts up inadvertently. – Exception:

adjustment of carburetor and idle speed.

Do not service or store the machine near

a naked light – risk of fire due to the

fuel.

Check fuel cap regularly for tightness.

Use only the spark plugs approved by

STIHL – see Specifications.

Inspect ignition lead (insulation in good

condition, secure connection).

To reduce the risk of fire due to ignition

outside the cylinder, move the slide

control / stop switch to STOP or 0before

turning the engine over on the starter

with the spark plug boot removed or the

spark plug unscrewed.

Check that the muffler is in perfect

working condition.

Do not use the machine if the muffler is

damaged or missing – risk of fire! –

Hearing damage!

Do not touch the hot muffler – risk of

burns!

The condition of the anti-vibration

buffers influences the machine's

vibrations – they must be examined

regularly.

STIHL power tool attachments are

available for converting the single

purpose unit into other power tool

combinations.

Approved Power Tool

Attachments

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