Stihl SP 92 T Instruction Manual

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STIHL SP 92 T

Instruction Manual

Contents

English

Guide to Using this Manual 2 Safety Precautions and Working

Techniques 2 Using the Unit 7 Assembling the Unit 9 Fuel 10 Fueling 11 Fitting the Harness 12

Original Instruction ManualPrinted on chlorine-free paper

Backpack Carrying System 13 Starting / Stopping the Engine 13 Transporting the Unit 16 Operating Instructions 17 Replacing the Air Filter 17 Adjusting the Carburetor 17 Spark Plug 18 Engine Running Behavior 19 Storing the Machine 19 Inspection and Maintenance by

User 19 Inspections and Maintenance by

Dealer 21 Maintenance and Care 22

Printing inks contain vegetable oils, paper can be recycled.

Minimize Wear and Avoid Damage 24 Main Parts 25 Specifications 26 Maintenance and Repairs 27 Disposal 27 EC Declaration of Conformity 27

Dear Customer,

Thank you for choosing a quality engineered STIHL product.

It has been built using modern production techniques and comprehensive quality assurance. Every effort has been made to ensure your satisfaction and trouble-free use of the product.

Please contact your dealer or our sales company if you have any queries concerning this product.

Your

Dr. Nikolas Stihl

0458-423-0121-C. VA1.A20.

0000008642_003_GB

SP 92 TC

English

Guide to Using this Manual

Pictograms

The meanings of the pictograms attached to the machine are explained in this manual.

Depending on the model concerned, the following pictograms may be attached to your machine.

Fuel tank; fuel mixture of gasoline and engine oil

Operate manual fuel pump

Symbols in text

WARNING

Warning where there is a risk of an accident or personal injury or serious damage to property.

NOTICE

Caution where there is a risk of damaging the machine or its individual components.

Engineering improvements

STIHL's philosophy is to continually improve all of its products. For this reason we may modify the design, engineering and appearance of our products periodically.

Therefore, some changes, modifications and improvements may not be covered in this manual.

Safety Precautions and Working Techniques

Special safety precau tions must be observed when working with this power tool because the rakes and tines move at a high stroke rate.

It is important that you read the instruction man ual before first use and keep it in a safe place for future reference. Nonobservance of the safety precautions may result in serious or even fatal injury.

Observe all applicable 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 it is operated or attend a special course in its operation.

Minors should never be allowed to use a power tool.

Keep bystanders, especially children, and animals away from the work area.

When the power tool is not in use, shut it off so that it does not endanger others. Secure it against unauthorized use.

The user is responsible for avoiding injury to third parties or damage to their property.

Do not lend or rent your power tool without the instruction manual. Be sure than anyone using your power tool understands the information contained in this manual.

SP 92 TC

English

002BA343 KN

The use of noise emitting power tools may be restricted to certain times by national or local regulations.

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 power tool produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers. STIHL recommends that persons with pacemakers consult their physician and the pacemaker manufacturer to reduce any health risk.

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 because of the increased risk of accidents and 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.

Operate the power tool only in a fully assembled condition.

Only mount tools and accessories that are explicitly approved for this power tool by STIHL or are technically identical. If you have any questions in this respect, consult a servicing dealer.

Use only high quality tools and accessories in order to avoid the risk of accidents and damage to the machine.

STIHL recommends the use of genuine STIHL tools and accessories. They are specifically designed to match the product and meet your performance requirements.

Clothing and Equipment

Wear proper protective clothing and equipment.

Clothing must be sturdy but allow complete free

dom of movement. Wear snug-fitting clothing, e.g. an overall and jacket combination, do not wear a work coat.

Avoid clothing that could get caught on branches or brush or moving parts of the machine. Do not wear a scarf, necktie or jewelry. Tie up and confine long hair (e.g. with a hair net, cap, hard hat, etc.).

Wear sturdy shoes with non-slip soles.

WARNING

To reduce the risk of eye injuries, wear close-fit

ting safety glasses in accordance with Euro

pean Standard EN 166. Make sure the safety glasses are a comforta

ble and snug fit.

Wear a face shield and make sure it is a good fit. A face shield alone does not provide adequate eye protection.

Wear hearing protection, e.g. earplugs or ear muffs.

Wear a safety hard hat with chin strap where there is a danger of head injuries from falling objects.

Wear heavy-duty work gloves made of durable material (e.g. leather).

STIHL offers a comprehensive range of personal protective clothing and equipment.

Transporting the Power Tool

Always stop the engine.

Carry the machine suspended from the shoulder strap or by the drive tube. Avoid touching hot parts of the machine, especially the muffler and gear housing – you could suffer serious burns.

Transporting by vehicle: Properly secure your power tool to prevent turnover, fuel spillage and damage.

SP 92 TC

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Fueling

Gasoline is an extremely flammable fuel. Keep clear of naked flames. 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.

Fuel your power tool only in wellventilated areas. If you spill fuel, wipe the machine immediately – if fuel gets on your clothing, change immediately.

After fueling, tighten down the tank cap as securely as possible.

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 leak is found, do not start the engine.

Before Starting

Check that your power tool is properly assembled and in good condition – refer to appropriate chapters in the instruction manual:

– Check the fuel system for leaks,

paying special attention to visible parts such as the tank cap, hose connections and the manual fuel pump (on machines so equipped). If there are any leaks or damage, do not start the engine – risk of fire. Have your machine repaired by a servicing dealer before using it again.

– The power tool must be properly

assembled – see “Assembling the Unit”.

– The stop switch / slide control must

move freely.

– Smooth action of choke knob,

throttle trigger lockout, throttle set wheel and throttle trigger – the throttle trigger must return automatically to the idle position. The choke knob must spring back from the g position to the run position F when the throttle trigger lockout and throttle trigger are squeezed.

– Tines on rake: Securely mounted

and in good condition (clean, not bent or cracked).

– Check that the 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 the safety devices in any way.

– Keep the handles dry and clean,

free from oil and dirt, for safe control.

– Adjust the harness to suit your

height and reach. See chapter on "Fitting the Harness".

To reduce the risk of personal injury, do not operate your machine if it is not in a safe condition.

If you use a shoulder strap or full harness: Practice removing and putting down the machine as you would in an emergency. To avoid damage, do not throw the machine to the ground when practicing.

Starting the Engine

Start the engine at least 3 meters from the fueling spot, outdoors only.

Place the machine on firm ground in an open area. Make sure you have good balance and secure footing. Hold the machine securely. The rakes and tines must be clear of the ground and all other obstructions because they may begin to run when the engine starts – allow sufficient clearance for movement of the rakes and tines.

To reduce the risk of injury, avoid contact with the rakes and tines.

Your power tool a one-person unit. To reduce the risk of injury from fall falling branches or contact with the rakes and tines, do not allow other persons within a radius of 5meters of your own position – even when starting.

Do not drop start the power tool – start the engine as described in the instruction manual.

SP 92 TC

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002BA344 KN

002BA345 KN

Note that the rakes and tines continue to run for a short period after you let go of the throttle trigger (flywheel effect).

Check idle speed setting: The rakes and tines must not move when the engine is idling with the throttle trigger released.

To reduce the 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 Power Tool

Always hold the power tool 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 control handle, left hand on handle hose on drive tube, even if you are left-handed.

The machine can be carried on a shoulder strap to relieve the weight on the operator's arms.

During Operation

In the event of impending danger or in an emergency, switch off the engine immediately – move the stop switch / slide control in the direction of 0.

To reduce the risk of injury from falling objects, do not allow bystanders within a radius of 5 meters of your own position. To reduce the risk of damage to property, also maintain this distance from other objects (vehicles, windows).

Make sure the idle speed setting is correct. The rakes and tines must not move when the engine is idling with the throttle trigger released.

Check and correct the idle speed setting regularly. If the rakes and tines still run when the engine is idling, have your dealer check your machine and make proper adjustments or repairs. STIHL recommends a STIHL servicing dealer.

Take special care in slippery conditions on slopes and uneven ground.

Clear away fallen branches and scrub.

Watch out for obstacles: Roots and tree stumps which could cause you to trip or stumble.

Make sure you always have good balance and secure footing.

When working at heights:

– Always use a lift bucket

– Never work on a ladder

– Never work in a tree

– Never work on an insecure support

– Never operate your machine 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. Stay alert so as not to endanger others.

Your power tool produces toxic exhaust fumes as soon as the engine is running. These fumes may be colorless and odorless and contain unburned hydrocarbons and benzol. Never run the engine indoors or in poorly ventilated loca

tions, even if your model is equipped with a cata

lytic converter.

SP 92 TC

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To reduce the risk of serious or fatal injury from breathing toxic fumes, ensure proper ventilation when working in trenches, hollows or other confined locations.

To reduce the risk of accidents, stop work immediately in the event of nausea, headache, visual disturbances (e.g. reduced field of vision), problems with hearing, dizziness, deterioration in ability to concentrate. Apart from other possibilities, these symptoms may be caused by an excessively high concentration of exhaust gases in the work area.

Operate your power tool so that it produces a minimum of noise and emissions – do not run the engine unnecessarily, accelerate the engine only when working.

To reduce the 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.

The dusts, vapor and smoke produced during operation may be dangerous to health. If the work area is very dusty or smoky, wear a respirator.

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 the fuel system in particular for leaks and make sure the safety devices are working properly. Do not continue operating your power tool if it is damaged. In case of doubt, consult your servicing dealer.

Do not operate your power tool in the starting throttle position – engine speed cannot be controlled in this position.

Before leaving the power tool unattended: Shut off the engine.

If the rakes and tines become blocked: Let go of throttle trigger – shut off the engine – clear the blockage.

Opening the throttle while the rakes and tines 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 and tines moving while the engine is idling.

Keep the rakes and tines clear of foreign objects – such objects may be caught and thrown and damage the rakes and tines.

Check the rakes and their tines at regular short intervals or immediately if there is a noticeable change in the tool's behavior:

– Shut off the engine, hold the

machine securely.

– 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 the tines or rake with tines.

Never continue using or attempt to repair damaged or cracked rakes or tines.

Vibrations

Prolonged use of the power tool may result in vibration-induced circulation problems in the hands (whitefinger disease).

No general recommendation can be given for the length of usage because it depends on several factors.

The period of usage is prolonged by:

– Hand protection (wearing warm

gloves)

– Work breaks

The period of usage is shortened by:

– Any personal tendency to suffer

from poor circulation (symptoms: frequently cold fingers, tingling sensations).

– Low outside temperatures.

– The force with which the handles

are held (a tight grip restricts circulation).

Continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear (e.g. tingling sensation in fingers), seek medical advice.

SP 92 TC

English

414BA002 KN

Maintenance and Repairs

Service the machine regularly. Do not attempt any maintenance or repair work not described in the instruction manual. Have all other work performed by a servicing dealer.

STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.

Only use high-quality replacement parts in order to avoid the risk of accidents and damage to the machine. If you have any questions in this respect, consult a servicing dealer.

STIHL recommends the use of genuine STIHL replacement parts. They are specifically designed to match your model and meet your performance requirements.

To reduce the risk of injury, always shut off the engine before carrying out any maintenance or repairs or cleaning the machine. – Exception: Carburetor and idle speed adjustments.

Do not turn the engine over on the starter with the spark plug boot or spark plug removed unless the slide control / stop switch is on STOP or 0 since there is otherwise a risk of fire from uncontained sparking.

To reduce the risk of fire, do not service or store your machine near open flames.

Check the fuel filler cap for leaks at regular intervals.

Use only a spark plug of the type approved by STIHL and make sure it is in good condition – see "Specifications".

Inspect the ignition lead (insulation in good condition, secure connection).

Check the condition of the muffler.

To reduce the risk of fire and damage to hearing, do not operate your machine if the muffler is damaged or missing.

Do not touch a hot muffler since burn injury will result.

Vibration behavior is influenced by the condition of the AV elements – check the AV elements at regular intervals.

Using the Unit

This power tool is used for harvesting nuts and fruits.

The influences of ripeness, variety and size of fruits or nuts determines whether this power tool is suitable for harvesting. The performance of this special harvester is affected by the abovementioned factors.

This unit is not recommended for harvesting dessert fruit, e.g. apples, pears, plums, etc.

WARNING

Do not operate the unit if one of the tines (1) is missing or broken. Operating the unit with broken and/or missing tines (1) may result in the operator being exposed to high loads caused by increased vibration – see "Vibrations".

SP 92 TC

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414BA003 KN

414BA004 KN

414BA005 KN

NOTICE

The forkhead (2) performs rapid reciprocating movements during operation. Take care not to damage branches with the forkhead. Do not force branches between the rakes (3).

Working Technique

Use the following working technique to obtain best results and good performance from the harvester:

N Accelerate the engine and comb the

branches with the rakes. Use the throttle trigger to obtain the optimum rake stroke rate.

N Keep the throttle open only as long

as the rakes are engaged in the branches.

N Do not accelerate the engine when

the rakes are not engaged in the branches.

N Reposition the rakes in the next

section of the tree.

N Repeat this process for all sections

of the tree.

N Pay attention to the tree's limb

structure during operation:

– Comb the lower section (A) from the

top downwards, this also applies for drooping branches at the outer extremities of the tree.

– Comb the upper section (B) from

the bottom upwards.

– Comb the tree from the inside

outwards, towards the tips of the branches.

N While combing the branches, turn

the rakes to and fro around the shaft's axis (C) if necessary.

N Have the whole tree even if there is

very little fruit left on it.

N Do not hold the unit in one spot for

too long so as not to damage leaves and branches unnecessarily.

N Always shut off the engine before

leaving the unit unattended.

NOTICE

Operating the unit with broken and/or missing tines (1) may result in damage to gearbox components or overload them. Therefore, do not continue using a unit with broken and/or missing tines.

Operating the unit with broken and/or missing tines reduces the unit's harvesting performance.

N Always replace damaged tines –

see chapter on "Inspection and Maintenance by User".

SP 92 TC

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414BA006 KN

414BA007 KN

413BA014 KN

002BA248 KN

413BA015 KN

414BA008 KN

414BA009 KN

Assembling the Unit

Mounting the Gearbox

N Place the power tool on the ground

so that it rests on the machine support (arrow).

Alternative check: The drive tube is correctly positioned when it completely closes the slot in the gearbox’s clamp (short arrows).

The plug may come out of the drive tube when you pull off the cap. Push it back into the drive tube as far as stop.

N Line up the gearbox parallel to the

machine support or the ground.

N Tighten down the clamp screws on

the gearbox firmly.

N Apply a mark (with pencil or colored

pen) at distance A (40 mm) from the end of the drive tube.

N Loosen the clamp screws (1) on the

gearbox – do not remove them.

N Push the gearbox (2) onto the drive

tube (3) as far as stop – turn it back and forth at the same time – until it reaches or covers the mark on the drive tube.

N Pull the protective cap off the end of

the drive tube.

SP 92 TC

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414BA025 KN

414BA026 KN

16 mm

414BA024 KN

Fitting the Tines

N Screw the tines (1) into the two

rakes (2) by hand as far as stop – fit all eight tines on the rakes.

N Tighten down the tines by hand.

N Engage the combination wrench (3)

on the hexagon (4) at the base of tine (1) and screw down as far as stop.

Fuel

Your engine requires a mixture of gasoline and engine oil.

WARNING

For health reasons, avoid direct skin contact with gasoline and avoid inhaling gasoline vapor.

STIHL MotoMix

STIHL recommends the use of STIHL MotoMix. This ready-to-use fuel mix contains no benzol or lead, has a high octane rating and ensures that you always use the right mix ratio.

STIHL MotoMix uses STIHL HP Ultra two-stroke engine oil for an extra long engine life.

MotoMix is not available in all markets.

Mixing Fuel

NOTICE

Unsuitable fuels or lubricants or mix ratios other than those specified may

N Use the combination wrench (3) to

tighten down the tine (1) firmly by turning it another 30° to 40°.

N Remove the combination wrench

from the tine.

result in serious damage to the engine. Poor quality gasoline or engine oil may damage the engine, sealing rings, hoses and the fuel tank.

Gasoline

Use only high-quality brand-name gasoline with a minimum octane rating of 90 – leaded or unleaded.

SP 92 TC

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0208BA019 KN

Gasoline with an ethanol content of more than 10% can cause running problems in engines with a manually adjustable carburetor and should not be used in such engines.

Engines equipped with M-Tronic deliver full power when run on gasoline with an ethanol content of up to 25% (E25).

Engine Oil

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 twostroke engine oil or an equivalent highperformance engine oil in order to maintain emission limits over the machine’s service life.

Mix Ratio

STIHL 50:1 two-stroke engine oil: 50 parts gasoline to 1 part oil

Examples

Gasoline STIHL engine oil 50:1 Liters Liters (ml)

10.02(20) 5 0.10 (100) 10 0.20 (200) 15 0.30 (300) 20 0.40 (400) 25 0.50 (500)

N Use a canister approved for storing

fuel. Pour oil into canister first, then add gasoline and mix thoroughly.

Storing Fuel

Store fuel only in approved safety-type fuel canisters in a dry, cool and safe location protected from light and the sun.

Fuel mix ages – only mix sufficient fuel for a few weeks work. Do not store fuel mix for longer than 30 days. Exposure to light, the sun, low or high temperatures can quickly make the fuel mix unusable.

STIHL MotoMix may be stored for up to 2 years without any problems.

N Thoroughly shake the mixture in the

canister before fueling your machine.

WARNING

Pressure may build up in the canister – open it carefully.

N Clean the fuel tank and canister

from time to time.

Dispose of remaining fuel and cleaning fluid properly in accordance with local regulations and environmental requirements.

Fueling

Fuel filler cap

WARNING

When fueling on a slope, always position the machine with the filler cap facing uphill.

N Place the machine on level ground

so that the filler cap is facing up.

N Before fueling, clean the filler cap

and the area around it to ensure that no dirt falls into the tank.

SP 92 TC

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0208BA020 KN

0208BA021 KN

002BA319 KN

002BA320 KN

Open the tank cap.

N Turn the cap counterclockwise until

it can be removed from the tank opening.

N Remove the cap.

Filling up with fuel

Take care not to spill fuel while fueling and do not overfill the tank.

STIHL recommends you use the STIHL filler nozzle for fuel (special accessory).

N Fill up with fuel.

Fitting the Harness

The type of harness is market-specific.

Shoulder strap

Attaching unit to harness

N Attach the carabiner (1) to the

carrying ring (2) on the drive tube.

Detaching unit from harness

Close the tank cap.

N Place the cap in the opening. N Turn the cap clockwise as far as

stop and tighten it down as firmly as possible by hand.

N Put on the shoulder strap (1). N Adjus t the len g th of t h e strap so that

the carabiner (2) is about a hand’s width below your right hip.

N Press down the bar on the

carabiner (1) and pull the carrying ring (2) out of the carabiner.

SP 92 TC

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2 3

414BA029 KN

414BA031 KN

0208BA028 KN

Backpack Carrying System

Starting / Stopping the Engine

Controls

N Adjust the hip belt (4), the two

harness straps (5) and the support strap (6).

The backpack carrying system distributes the load evenly over the shoulders, back and hips.

N Put the backpack carrying system

(1) on your back and adjust it as described in the instruction sheet provided.

N With the engine running, attach the

power tool to the backpack carrying system, i.e. hook the carabiner (2) to the ring (3) on the drive tube.

1 Throttle trigger lockout 2 Throttle trigger 3 Stop switch with Run and Stop

positions. Depress the stop switch (…) to switch off the ignition – see "Function of Stop Switch and Ignition System".

4 Throttle set wheel – limits travel of

throttle trigger – see "Function of Throttle Set Wheel".

Function of Stop Switch and Ignition System

The stop switch is normally in the Run position, i.e. when it is not depressed: The ignition is switched on – the engine is ready to start. Operate the stop switch

SP 92 TC

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0000-GXX-5475-A0

414BA013 KN

414BA014 KN

414BA015 KN

to switch off the ignition. The ignition is switched on again automatically after the engine stops.

Function of Throttle Set Wheel

Travel of throttle trigger can be limited with the set wheel:

– Turn throttle set wheel in direction of

– as far as stop to limit travel to idle speed.

– Turn throttle set wheel in direction of

+ as far as stop to allow travel to full throttle.

– The preset limit can be temporarily

overridden by squeezing the throttle trigger firmly.

Starting the Engine

N Press the manual fuel pump

bulb (5) at least five times – even if the bulb is already filled with fuel.

Cold engine (cold start)

N Turn choke knob (6) and then push

it in at g

Also use this setting if the engine has been running but is still cold.

– Turn throttle set wheel in direction of

+ as far as stop.

Hot engine (hot start) N Choke knob (6) remains in F

position.

Cranking

0000-GXX-5224-A0

N Place the powerhead on the

ground: It must rest securely on the engine support. Rest the gearbox on a raised support (high mound) or position the drive tube in the fork of a branch. Check that the rakes are not touching the ground or any other obstacles.

Alternative method of starting:

N Hold the unit securely with your left

hand on the fan housing – your thumb should be under the fan housing – rest the drive tube in the fork of a branch – check that the rakes and tines are not touching the ground or any other obstacles.

N Make sure you have a firm footing. N When starting from the kneeling

position, hold the unit with your left hand and press it down firmly – your thumb should be under the fan housing.

NOTICE

Do not stand or kneel on the drive tube since it will otherwise be permanently bent and damaged.

SP 92 TC

N Hold the starter grip in your right

414BA016 KN

hand and pull it out slowly and steadily.

NOTICE

Do not pull out the starter rope all the way – it might otherwise break.

N Do not let the starter grip snap back.

Guide it slowly back into the housing so that the starter rope can rewind properly.

N Continue cranking until the engine

runs.

As soon as the engine runs

At temperatures below +10°C

Warm up the engine for at least 10 seconds in position g.

At temperatures above +10°C

Warm up the engine for at least 5 seconds in position g.

N Depress throttle trigger lockout and

pull the throttle trigger – the choke knob moves to the run position F.

Warm up a cold engineat varying speeds.

WARNING

Make sure the carburetor is correctly adjusted. The working tool must not move when the engine is idling.

Your machine is now ready for operation.

Stopping the Engine

N Depress the momentary contact

stop switch – the engine stops – release the stop switch – it springs back to the run position.

Other Hints on Starting

Engine stalls in cold start position g. N Depress throttle trigger lockout and

pull the throttle trigger – the choke knob moves to the run position F.

N Continue cranking in position F until

the engine runs.

English

Running engine stalls in cold start position g or under acceleration.

N Continue cranking in cold start

position g until the engine runs.

If the engine does not start

N Check that all settings are correct. N Check that there is fuel in the tank

and refuel if necessary.

N Check that the spark plug boot is

properly connected.

N Repeat the starting procedure.

Fuel tank run until completely dry N After refueling, depress the manual

fuel pump bulb at least 5 times – even if the bulb is already filled with fuel.

N Set the choke knob according to

engine temperature.

N Now start the engine.

SP 92 TC

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4904BA000 KN

470BA008 KN

470BA009 KN

470BA010 KN

470BA011 KN

Transporting the Unit

STIHL power tool models with the letter T in their designations have a split drive shaft for compact transportation.

Disconnecting the Drive Tube

N Unhook the shoulder strap from the

carrying ring.

N Place the machine on the ground so

that it rests on the machine support and gearbox or the tines,

N Loosen the wing screw (1) – do not

remove it.

N Pull t he f ront dri v e tube (2 ) ou t of the

coupling sleeve (3).

N Fit the cap (4) on the end of the front

drive tube.

NOTICE

Make sure the ends of the drive tube are clean.

Connecting the Drive Tube

N Pull the cap off the front drive tube

and keep it in a safe place.

N Put the powerhead on the ground so

that it rests on the machine support.

N Examine ends of drive tube for dirt

and clean them if necessary.

N Push the lug (5) on the front drive

tube (2) into the slot (6) in the coupling sleeve as far as stop.

When correctly installed, the red line (7) (arrow point) must be flush with the end of the coupling sleeve.

N Tighten down the wing screw (1)

firmly.

N Attach shoulder strap to the carrying

ring.

SP 92 TC

English

Operating Instructions Replacing the Air Filter

During break-in period

A factory-new machine should not be run at high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings.

Do not remove the filter cover or replace the air filter as long as there is no noticeable loss of power.

If there is a noticeable loss of engine power

During Operation

After a long period of full throttle operation, allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This protects enginemounted components (ignition, carburetor) from thermal overload.

After Finishing Work

Storing for a short period: Wait for the engine to cool down. Empty the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again. For longer out-ofservice periods – see "Storing the Machine".

N Turn the choke knob to g. N Take out the screws (1). N Remove the filter cover (2). N Clean away loose dirt from around

the filter.

N Remove the filter element (3). N Replace dirty or damaged filters. N Replace any damaged parts. N Fit the new air filter in the filter

housing (4).

N Fit the filter cover. N Fit the screws and tighten them

down firmly.

Adjusting the Carburetor

0208BA036 KN

The carburetor has been set at the

factory to provide an optimum fuel-air mixture under most operating conditions.

Adjusting Idle Speed

6162BA007 AM

Engine stops while idling N Turn the idle speed screw (LA)

slowly clockwise until the engine runs smoothly.

Attachment runs when engine is idling N Turn the idle speed screw (LA)

slowly counterclockwise until the attachment stops running.

SP 92 TC

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000BA039 KN

000BA045 KN

Spark Plug

N If the engine is down on power,

difficult to start or runs poorly at idle speed, first check the spark plug.

N Fit a new spark plug after about 100

operating hours – or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL – see "Specifications".

Removing the spark plug

N Turn screw (1) in cap (2) until cap

can be removed

N Lay down cap

Checking the Spark Plug

N Clean dirty spark plug. N Check electrode gap (A) and

readjust if necessary – see "Specifications".

N Rectify the problems which have

caused fouling of the spark plug.

Possible causes are:

– Too much oil in fuel mix.

– Dirty air filter.

– Unfavorable running conditions.

0208BA037 KN

N Use resistor type spark plugs with a

properly tightened adapter nut.

Installing the Spark Plug

N Fit the spark plug and tighten it

down firmly.

N Press the boot firmly onto the spark

plug.

0208BA039 KN

N Fit the cap (1), insert the screw (2)

and tighten it down firmly.

N Pull off the spark plug boot (3) N Unscrew spark plug,

WARNING

Arcing may occur if the adapter nut (1) is

0208BA038 KN

loose or missing. Working in an easily combustible or explosive atmosphere may cause a fire or an explosion. This can result result in serious injuries or damage to property.

SP 92 TC

English

0208BA042 KN

Engine Running Behavior Storing the Machine Inspection and Maintenance

by User

If engine running behavior is still unsatisfactory after the air filter has been serviced and the carburetor and throttle cable have been adjusted correctly, the cause may also be in the muffler.

Have the muffler checked for contamination (coking) by a servicing dealer!

STIHL recommends that maintenance and repair work be carried out only by authorized STIHL dealers.

For periods of about 3 months or longer N Drain and clean the fuel tank in a

well ventilated area.

N Dispose of fuel properly in

accordance with local environmental requirements.

N Run the engine until the carburetor

is dry – this helps prevent the carburetor diaphragms sticking together.

N Clean the rakes and tines and check

them for damage

N If the unit is stored with the drive

tube disassembled: Fit the protective cap to avoid dirt getting into the coupling.

N Thoroughly clean the machine – pay

special attention to the cylinder fins and air filter.

N Store the machine in a dry and

secure location out of the reach of children and other unauthorized persons.

Adjusting the Throttle Cable

The throttle cable can be adjusted only when the machine is properly assembled. The control handle must be in the normal operating position.

If the following adjustments do not produce the required result, have your servicing dealer repair the machine. STIHL recommends an authorized STIHL servicing dealer.

Checking Adjustment of Throttle Cable

Error: Engine speed increases when only the throttle trigger is pulled.

SP 92 TC

N Start the engine. N Pull the throttle trigger (1) – do not

press down the throttle trigger lockout (2).

If the engine speed increases or if the attachment runs, the throttle cable has to be adjusted.

N Shut down the engine.

English

0208BA043 KN

414BA010 KN

414BA020 KN

16 mm

4 4

414BA027 KN

414BA028 KN

Adjusting the Throttle Cable

N Depress the throttle trigger

lockout (1) and the throttle trigger (2) as far as stop and hold them in that position.

Apply only sufficient pressure to hold the levers against their stops.

N Rotate screw in throttle trigger

1/2 turn counterclockwise.

N Release the throttle trigger and

throttle trigger lockout.

N Start the engine and check the

adjustment.

N Shut down the engine and repeat

adjustment if necessary.

Replacing Tines

N Broken, badly worn and missing

tines must be replaced immediately with new tines.

N Engage the combination wrench (2)

on the hexagon (3) at the base of the tine (1).

N Use the combination wrench to

loosen the tine.

N Unscrew the tine from the rake (4).

N Screw the tine (1) into the rake (4)

as far as possible by hand.

N Engage the combination wrench (2)

on the hexagon (3) at the base of the tine (1) and screw down as far as stop.

A set of 4 tines is available as a special accessory – see "Special Accessories” for part number.

N Use the combination wrench (2) to

tighten down the tine firmly by turning it another 30° to 40°.

SP 92 TC

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0208BA044 KN

0208BA045 KN

Inspections and Maintenance by Dealer

Maintenance Work

STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.

Fuel Pickup Body in Tank

N Check the pickup body in the fuel

tank every year and have it replaced if necessary.

The pickup body should be positioned in the area of the tank shown in the illustration.

Antivibration Element

A vibration-absorbing rubber element is installed between the powerhead and the shaft. Have it checked if there are signs of wear or a noticeable increase in vibration levels.

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Maintenance and Care

The following intervals apply to normal operating conditions only. If your daily work ing time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly.

Visual inspection (condition, leaks) XX

Complete machine

Control handle Check operation XX

Air filter

Fuel tank Clean XXX

Manual fuel pump (if fitted)

Pickup body (filter) in fuel tank

Carburetor

Spark plug

Cooling air inlet

Cylinder fins Clean

All accessible screws and nuts (not adjust ing screws)

Antivibration elements

Clean X

Replace any damaged parts X

Visual inspection XX

Replace

Check X

Have repaired by servicing dealer

Check

Replace

Check idle adjustment – the attachment must not run

Readjust idle speed X

Readjust electrode gap X

Replace after every 100 operating hours

Visual inspection X

Clean X

Re-tighten X

Visual inspection

Replace

before starting work

after finishing work or daily

after each refueling stop

weekly

monthly

every 12 months

if problem

if damaged

as required

XXX

SP 92 TC

English

Visual inspection XX

Tines

Safety labels Replace X

Only if there is a noticeable loss of engine power

STIHL recommends an authorized STIHL servicing dealer.

see chapter "Inspections and Maintenance by Dealer", section "Antivibration Elements"

Replace X

Check tightness XX

before starting work

after finishing work or daily

after each refueling stop

weekly

monthly

every 12 months

if problem

if damaged

as required

SP 92 TC

English

Minimize Wear and Avoid Damage

Observing the instructions in this manual helps reduce the risk of unnecessary wear and damage to the power tool.

The power tool must be operated, maintained and stored with the due care and attention described in this owner's manual.

The user is responsible for all damage caused by non-observance of the safety precautions, operating and maintenance instructions in this manual. This includes in particular:

– Alterations or modifications to the

product not approved by STIHL.

– Using tools or accessories which

are neither approved or suitable for the product or are of a poor quality.

– Using the product for purposes for

which it was not designed.

– Using the product for sports or

competitive events.

– Consequential damage caused by

continuing to use the product with defective components.

Maintenance Work

All the operations described in the "Maintenance Chart" must be performed on a regular basis. If these maintenance operations cannot be performed by the owner, they should be performed by a servicing dealer.

STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL

servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.

If these maintenance operations are not carried out as specified, the user assumes responsibility for any damage that may occur. Among other parts, this includes:

– Damage to the engine due to

neglect or deficient maintenance (e.g. air and fuel filters), incorrect carburetor adjustment or inadequate cleaning of cooling air inlets (intake ports, cylinder fins).

– Corrosion and other consequential

damage resulting from improper storage.

– Damage to the machine resulting

from the use of poor quality replacement parts.

Parts Subject to Wear and Tear

Some parts of the power tool are subject to normal wear and tear even during regular operation in accordance with instructions and, depending on the type and duration of use, have to be replaced in good time. Among other parts, this includes:

– Rakes and tines

– Drive and mounting components of

rakes and tines

– Clutch

– Filters (air, fuel)

– Rewind starter

– Spark plug

– Components of antivibration system

SP 92 TC

0000-GXX-5500-A0

Main Parts

English

1 Rakes 2 Tines 3 Forkhead 4 Gearbox 5 Front Drive Tube 6 Handle Hoses 7 Cap 8 Coupling Sleeve 9 Wing screw 10 Rear Drive Tube 11 Carrying Ring 12 Throttle Trigger 13 Set Wheel 14 Stop Switch 15 Throttle Trigger Lockout 16 Spark Plug Boot 17 Air Filter Cover 18 Machine Support 19 Manual Fuel Pump 20 Choke Knob 21 Carburetor Adjusting Screw 22 Tank Cap 23 Fuel Tank 24 Starter Grip 25 Muffler # Serial Number

SP 92 TC

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Specifications

Engine

Single cylinder two-stroke engine

Displacement: 24.1 cc Bore: 35 mm Stroke: 25 mm Engine power to

ISO 8893: Idle speed: 2,800 rpm Cut-off speed (rated): 9,800 rpm

Ignition System

Electronic magneto ignition

Spark plug (resistor type): NGK CMR6H

Electrode gap: 0.5 mm

Gearbox

Gear ratio: 11:1 Forkhead stroke: 20 mm Strokes per minute

at n = 9,800 rpm

Movement of rake in one direction is 1 stroke. The back and forth movement of the rake counts as two strokes (= 2 working strokes).

0.9 kW (1.2 bhp) at 8,500 rpm

1,820 strokes/min

Fuel System

All position rotary valve carburetor with integral fuel pump

Fuel tank capacity: 540 cc (0.54 l)

Weight

Complete machine, dry: 5.6 kg

Overall length

Complete machine: 2310 mm

Features

C Convenience features T Split boom (drive tube)

Noise and Vibration Data

Noise and vibration data are measured at idling and maximum rated speed in a ratio of 1:6.

For further details on compliance with Vibration Directive 2002/44/EC visit www.stihl.com/vib.

Attachment: Rake with tines

Sound pressure level L

to ISO 11201

90 dB(A)

Sound power level Lw to ISO 3744

105 dB(A)

Vibration level a

Left handle: 6.6 m/s Right handle: 6.1 m/s

to ISO 20643

hv,eq

The K-factor in accordance with Directive 2006/42/EC is 2.0 dB(A) for the sound pressure level and sound power level; the K-factor in accordance with Directive 2006/42/EC is 2.0 m/s

for the vibration level.

REACH

REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances.

For information on compliance with the REACH regulation (EC) No. 1907/2006 see www.stihl.com/reach.

Exhaust Emissions

The CO

value measured in the EU type

approval procedure is specified at www.stihl.com/co2.

The measured CO

value was

determined on a representative engine in accordance with a standardized test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine.

The applicable exhaust emission requirements are fulfilled by the intended usage and maintenance described in this instruction manual. The type approval expires if the engine is modified in any way.

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000BA073 KN

Maintenance and Repairs Disposal

Users of this machine may only carry out the maintenance and service work described in this user manual. All other repairs must be carried out by a servicing dealer.

When repairing the machine, only use replacement parts which have been approved by STIHL for this power tool or are technically identical. Only use highquality replacement parts in order to avoid the risk of accidents and damage to the machine.

STIHL recommends the use of original STIHL replacement parts.

Original STIHL parts can be identified by the STIHL part number, the { logo and the STIHL parts symbol K (the symbol may appear alone on small parts).

Observe all country-specific waste disposal rules and regulations.

STIHL products must not be thrown in the garbage can. Take the product, accessories and packaging to an approved disposal site for environmentfriendly recycling.

Contact your STIHL servicing dealer for the latest information on waste disposal.

EC Declaration of Conformity

ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen

Germany

declare in exclusive responsibility that

Designation: Special

Harvester Make: STIHL Model: SP 92 T Serial identification: 4259 Displacement: 24.1 cc

conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC and 2014/30/EU and has been developed and manufactured in compliance with the following standards in the versions valid on the date of production:

EN ISO 12100, EN 55012, EN 61000-6-1

Technical documents deposited at:

ANDREAS STIHL AG & Co. KG Produktzulassung (Product Licensing)

The year of manufacture and serial number are applied to the product.

SP 92 TC

English

Done at Waiblingen, 03.12.2018

ANDREAS STIHL AG & Co. KG

Thomas Elsner

Director Product Management and Services

SP 92 TC

0458-423-0121-C

englisch

www.stihl.com

*04584230121C*

0458-423-0121-C

Stihl SP 92 T Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual