Grass Trimmer
Grästrimmer
Gresstrimmer
Ruohotrimmeri
Important!
Read the entire instruction manual carefully
and make sure that you fully understand
it before you use the equipment. Keep the
manual for future reference.
Viktig information:
Läs hela bruksanvisningen noggrant och
försäkra dig om att du har förstått den
innan du använder utrustningen. Spara
bruksanvisningen för framtida bruk.
Viktig informasjon:
Les disse anvisningene nøye og forsikre deg
om at du forstår dem før du bruker enheten
og oppbevar dem for senere bruk.
Tärkeätä tietoa:
Lue nämä ohjeet huolellisesti ja varmista
että olet ymmärtänyt ne, ennen kuin alat
käyttää laitetta. Säilytä ohjeet myöhempää
tarvetta varten.
ENGLISH
SVENSK A
NORSKSUOMI
Art.no. Model
40-6002 YT9231
Ver. 200812
Grass Trimmer Cotech 1 hp/0.74 kW
Art.no.: 40-6002 Model: YT9231
Please read the entire instruction manual before using the product and save it for future reference. We reserve
the right for any errors in the text or images and any necessary changes made to technical data. If you have
any questions regarding technical problems please contact our Customer Services (see address on reverse).
Contents
Safety ...............................................3
Product Description ......................... 5
Assembly .........................................6
Fuel and Lubrication ........................ 9
Starting the Engine ....................... 10
Operation ....................................... 12
Care and Maintenance ................... 13
Storage............................................15
Troubleshooting Guide ..................15
Disposal ......................................... 16
Specifications ................................ 16
ENGLISH
Safety
Product safety symbols and their meaning
Wear protective head gear, protective eyewear/visor and ear defenders.
Wear protective gloves.
Wear safety footwear.
Read the entire instruction manual.
Stones and other debris can be ejected by the trimmer.
Do not permit anyone else to come close to the trimmer when it is in use. Children, pets and
bystanders should keep a distance of at least 15 metres away from the trimmer when it is being used.
The product is only intended for use with trimmer line. Never use a brush cutter blade
or other accessories.
Maximum shaft speed
Caution! Hot surface.
3
Safety Instructions
1. Wear protective footwear, tight-tting clothes and safety glasses/visor, ear defenders and a helmet.
2. Never use the grass trimmer if you are tired, sick, upset or under the inuence of medication which
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causes drowsiness. Do not use the trimmer whilst under the inuence of drugs, alcohol or medicine.
3. Fuel safety
- Always be careful when handling fuel. Open the fuel tank carefully and release any pressure which
might have built up in the tank. Wipe off any spilt fuel and move the grass trimmer at least 3 metres
away from the refuelling location before starting it.
- Remove any sources of ignition, sparks, open ames, lit cigarettes, etc. from the area where the fuel
is mixed, used or stored.
- Do not smoke while refuelling or using the grass trimmer.
4. Do not permit anyone other than the operator to come close to the grass trimmer when it is being started
or used. Children, pets and bystanders should keep a distance of at least 15 metres away from the grass
trimmer when it is being used.
5. Always hold both handles of the grass trimmer rmly with your ngers on one side of the handle and
thumb on the other side, once the engine is running.
6. Keep all body parts away from the trimmer line when the engine is running.
7. Make sure that the trimmer line is not in contact with any object before starting.
8. Only transport the trimmer with the engine switched off.
9. Always inspect the trimmer before starting it. Do not start it if there are worn, missing or damaged parts.
Never use the grass trimmer if it is damaged, incorrectly adjusted or incorrectly assembled.
10. All service other than that mentioned in this instruction manual should be carried out by qualied personnel.
11. Switch off the grass trimmer before laying it on the ground.
12. Be extra vigilant when cutting small bushes or thick grass. They can become stuck in the trimmer head.
13. Keep the handles clean, dry and free from oil or fuel.
14. Only use the trimmer outdoors or in well ventilated areas. Never start the trimmer in a closed room or
building. Exhaust fumes contain carbon monoxide and are dangerous to inhale.
15. Avoid running the trimmer head near small objects which can be ejected. Check the work area is clear of
small stones, debris, etc. before beginning.
16. Always stand below the trimmer if you are using it on a slope. Never use the trimmer on a slope if there
is the slightest risk of you losing your footing, falling or sliding.
17. Keep the trimmer clear of grass cutting build-up and other deposits. Particularly the guard trimmer head
and engine.
18. The grass trimmer must only be used by adults who have read the instruction manual.
19. Use only two-stroke fuel mixed with 2.5% good quality two-stroke oil (40:1) designed for air-cooled two-stroke
engines. Using petrol without the addition of oil can lead to engine damage not covered by the guarantee.
20. Do not use the grass trimmer without the silencer or silencer cover.
21. Hold both handles of the grass trimmer rmly, with your ngers on one side of the handle and thumb
on the other.
22. The silencer becomes extremely hot. Keep your hands and other body parts out of the way.
23. The trimmer head should not be lifted up during work since the trimmer line can injure the user. Work as
close to the ground as possible.
24. The grass trimmer must not be used for any other purpose than for the trimming of lawns and gardens.
25. The grass trimmer must not be used if the guard is damaged or missing.
26. This product must not be altered or used for other tasks since the risk of accident will increase and the
guarantee will not be valid.
27. Do not use the grass trimmer close to ammable gases and liquids since this could cause a re or lead
to an explosion.
4
Product Description
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105
104
107
109
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10
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16
12
15
101
102 103
1. Trimmer head
2. Trimmer head locking knob
3. Trimmer guard
4. Upper shaft
5. Shaft coupler
6. Lower shaft
7. Loop handle
8. Throttle
9. ON/OFF Switch (1/0)
10. Safety lock
19
20 17
11. Spark plug
12. Fuel tank
13. Air lter cover
14. Pull start handle
15. Primer pump
16. Choke lever
17. Carry strap
18. Trimmer spanner
19. Allen key
20. Spark plug wrench
5
Assembly
Assembling the loop handle and the lower shaft
ENGLISH
1. Remove the protective rubber cap on the upper shaft.
2. Thread the loop handle (7) onto the shaft and tighten the locking screw.
107
3. Thread the shaft coupler (5) onto the upper shaft until the screw hole is lined up with the hole in the shaft.
105
6
4. Tighten the screws and fasten the coupler in place by tightening the clamp using an Allen key.
5. Remove the protective rubber cap on the end of the lower shaft.
6. Press and hold in the release catch on the coupler (5). Insert the lower shaft into the coupler and release
the catch into the desired hole. There are three holes to allow the trimmer head to be set at three
different angles.
ENGLISH
105
7. Lock the shafts together by tightening the locking knob on the coupler.
7
Mounting the trimmer guard
Warning! The trimmer guard must be mounted correctly in order to protect the user and so that the trimmer
line will be the correct length. The guard contains a blade which automatically cuts off the line to an appro-
ENGLISH
priate length when the trimmer head begins rotating.
1. The trimmer head must be taken off before the trimmer guard is mounted.
2. Hold the trimmer head and use your hand or the enclosed spanner to undo the trimmer head nut.
3. Remove the trimmer head from the spindle.
4. Slide the trimmer guard over the shaft and align the holes in the guard with holes in the bracket.
(See g above.)
5. Push in the bolt through the trimmer guard from the side with the hexagonal countersink. Tighten the bolt
using the washer and nut.
6. Reassemble the trimmer head onto the spindle.
8
Fuel and Lubrication
Caution! Petrol is highly ammable. Avoid smoking near any area where fuel will be handled. Do
not introduce open res, embers or sparks into the area. Switch off the grass trimmer and let it cool
before refuelling it. Refuel outdoors and always move at least 3 metres away from the refuelling site
before starting the trimmer.
Mix petrol (unleaded 95 octane without added ethanol) with a good quality 2-stroke oil intended for air-cooled
2-stroke engines.
Recommended mixture: Petrol/oil 40:1 (2.5 %)
• The engine is designed to be used with unleaded fuel.
• Use at least an 87 rated octane fuel.
• Use unleaded fuel to protect the environment and your health.
• Bad quality fuel or oil can damage seals, fuel pipes or the fuel tank.
Mixing the fuel
N.B. Be precise with the mixture.
1. Measure out the petrol and oil precisely before mixing.
2. Pour a small amount of the petrol into a clean approved fuel container.
3. Pour in all of the oil and agitate the fuel can.
ENGLISH
4. Pour in the rest of the petrol and agitate the fuel can for at least a minute. Some oils are difcult to mix. It
is therefore important to agitate the container in order for the oil and petrol to mix thoroughly. The engine
will last longer if the fuel is well mixed, if the fuel is not mixed properly the mixture will be too lean and the
engine may be damaged.
5. Label the fuel can clearly to avoid the risk of misidentication.
6. Fuel containing oil is only intended for 2-stroke engines. Pure petrol is for 4-stroke engines. It is therefore
very important to label fuel containers clearly.
N.B. Do not mix too much fuel; it should be used within 90 days.
Caution! Only use fuel containing oil for 2-stroke engines, using pure petrol without the addition of oil will
inevitably cause engine damage which is not covered by the guarantee.
Fueling the trimmer
1. Let the trimmer cool before refuelling it.
2. Unscrew and remove the fuel cap.
3. Fill with fuel until the tank is roughly 80% full.
4. Replace and tighten the fuel cap and wipe up any spilt fuel on or around the grass trimmer.
9
Starting the Engine
N.B. Pull the starter handle straight out. If you pull at an angle the starter cord will rub on the sleeve and
wear out prematurely. Keep hold of the starting handle after pulling it and allow it to return slowly. Never re-
ENGLISH
lease the starter handle completely at full length since it can become entangled and the backlash can break
something on the trimmer.
N.B. See the Troubleshooting section if the trimmer doesn’t start after several attempts.
Starting a cold engine
Cut the trimmer line to a length of 13 cm before starting to reduce the load while
the trimmer warms up.
1. Place the grass trimmer on a level surface.
2. Set the on/off switch to position
3. Set the choke lever (17) to cold start mode (upwards).
1.
13 cm
1016
4. Press the primer pump (15) 10 times.
5. Hold the upper handle rmly while simultaneously pressing and holding in the safety lock and throttle.
6. Pull the starter handle until you feel some resistance (approx. 100 mm) Pull the starter handle quickly
and smoothly until the engine starts or up to 4 times.
7. Set the choke lever to the open position (downwards) as soon as the engine starts.
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Starting a warm engine
1. Place the grass trimmer on a level surface.
2. Set the on/off switch to position
3. Hold the upper handle rmly while simultaneously pressing and holding in the safety lock and throttle.
4. Pull the starter handle until you feel some resistance (approx. 100 mm) Pull the starter handle quickly
and smoothly until the engine starts or up to 4 times.
5. If the engine doesn’t start repeat all steps in the
1.
Starting a cold engine section.
Shutting off the engine
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Release the throttle and let the engine idle. Set the on/off switch to the 0 position.
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Operation
Helpful Suggestions
ENGLISH
• Caution! Remove all objects like cans, bottles, stones, etc. from the ground
before using the trimmer. They can be thrown about by the trimmer and
cause injury or damage the trimmer.
Caution! Never raise the trimmer head above knee-height while it is spinning.
•
Caution! Never use metal or plastic coated metal trimmer line, this could
•
cause serious accidents.
Switch off the grass trimmer at once and check it for damage if you notice that
•
something is ejected or if the grass trimmer starts vibrating. Inspect the trimmer
for any damage. Do not use the grass trimmer if it has been damaged.
Allow the engine to come up to full speed before starting to cut the grass.
•
Never attempt to trim grass at low speed.
Hold the grass trimmer with both hands.
•
Hold the trimmer head parallel to the ground and sweep the grass trimmer
•
from side to side whilst slowly walking forwards. Reduce your forward
movement if the going gets heavy.
Do not move the trimmer head towards you, always work away from yourself.
•
Trimming round trees and bushes
• Lean the trimmer head forward slightly and start trimming from left to right
whilst slowly walking around the tree.
Be careful, so the trimmer line doesn’t cut the bark of the tree or the plants
•
that you want to keep!
If you trim grass close to fences, foundations, rocks, etc; the trimmer line
•
will soon wear out.
Preparing the ground (removing all vegetation)
• Angle the trimmer head approx. 30 degrees to the left (it is easier if you
loosen the loop handle and adjust it) See gure.
Do not do this if there is the slightest risk of something being ung up and
•
injuring people or animals standing within a 30-metre radius.
Feeding out the line
Feed out the trimmer line like this:
1. Let the engine come up to top speed. Tap the trimmer head on
the ground and lift it up again. The line will feed automatically.
2. The line will be cut to the correct length by the cutter blade under
the trimmer guard.
3. Turn off the engine and use e.g. a screwdriver to remove any
grass or other deposits that may have built up between the guard
and trimmer head. Debris caught between the guard and trimmer
head can reduce the ability of the driveshaft to cool properly.
12
Care and Maintenance
Warning! Disconnect the sparkplug lead before carrying out any maintenance.
A. Locking cap
B. Spool
C. Spring
D. Spindle
E. Housing
F. Line slot
G. Line holes
H. Trimmer line
Changing the line
1. Turn the locking cap (A) anti-clockwise and remove it either by hand or using the supplied spanner.
2. Remove the spool (B) and the spring (C) from the spindle (D).
3. Remove the existing trimmer line (H).
4. First measure then cut an 8.6-metre
length of trimmer line (Ø 2 mm). Fold
it in the middle so that you have two
ends measuring 4.3 metres; place the
middle of the fold in one of the slots in
the disc dividing the spool.
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5. Wind both ends of the line around the
spool clockwise gure 21. Hold the
line with your ngers while winding,
keeping the line taut. Stop when about
15 cm of the line remains.
6. Press the ends of the line into the slots
(F) on opposite sides of the spool.
7. Push in the spring (C) on the bottom of
the spool (if not already secure), pull
the ends of the line through the holes
(G) in the side of the housing (E).
8. Push the spool (B) into the housing
whilst feeding the ends of the line
through the holes (G).
9. Press the spool (B) inwards so that the
spring becomes compressed. Tug the
line, freeing them from the line slots
(F) in the spool.
10. Push the assembled trimmer head
securely onto the spindle and hold it
in position. Tighten the locking cap (A)
clockwise (only nger-tight).
11. Cut the ends of the line so they are no
longer than 13 cm.
13
Inspecting and cleaning the air filter
Never use the grass trimmer without an air lter. Clean or replace the lter if it is damaged or dirty.
Clean the air lter like this:
ENGLISH
1. Unscrew the locking screw and remove the cover.
2. Remove the foam lter from the cover.
3. Wash the lter with soap and water. Do not use petrol!
4. Squeeze the lter and let it dry naturally.
5. Replace the lter and reattach the cover.
Carburettor settings
The carburettor has been factory adjusted for optimum power.
0,635 mm
Spark plug
Spark plug: TORCH L8RTC, Champion CJ7Y, NGK BPMR7A.
Recommended spark plug gap: 0.635 mm.
Tightening torque: 12 – 15 Nm.
Sharpening the cutter blade (on the guard)
1. Remove the cutter (E) from the trimmer guard (F).
2. Hold the cutter in a vice. Sharpen the blade using a at le, sharpening in one direction only and making
sure to maintain the original grinding angle.
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Storage
1. Clean the exterior of the grass trimmer.
2. Transfer any fuel remaining in the fuel tank to a petrol container.
3. Start the engine when the fuel tank has been emptied.
4. Allow the engine to idle until it cuts out to empty the carburettor of fuel.
5. Allow the engine to cool for 5 minutes.
6. Use a spark plug socket to remove the spark plug.
7. Pour one teaspoon of pure 2-stroke oil into the cylinder via the spark plug hole, pull the starter handle
slowly a few times to distribute the oil evenly over the inside of the engine. Replace the spark plug.
8. Store the grass trimmer in a dry and well ventilated place.
Using the trimmer after storage
1. Use a spark plug socket to remove the spark plug.
2. Pull the starter handle quickly and smoothly a few times to remove the surplus oil from the cylinder.
3. Clean the spark plug electrodes or replace the spark plug with one having the correct plug gap.
4. Tighten the spark plug using a spark plug socket.
5. Fill the fuel tank.
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6. Follow the instructions in the
Starting a cold engine section.
Troubleshooting Guide
Problem Possible Cause Solution
The engine won’t start or
only runs at low speed
The engine starts but with
loss of power
The engine doesn’t
respond to the throttle
Loss of power under load Incorrect spark plug gap Clean and check the gap or change the
Incorrect starting procedure Read the instruction manual
Dirt in the carburettor Allow a qualied technician to clean
the carburettor
Faulty spark plug Clean or change the spark plug
Clogged fuel lter Change the fuel lter (inside the fuel tank)
Wrong choke setting Set the choke to OPEN
Dirty air lter Clean or change the air lter
Dirt in the carburettor Allow a qualied technician to clean
the carburettor
The engine is not adequately
warmed up
Allow the engine to idle for a minute
spark plug.
The engine runs irregularly Dirt in the carburettor Allow a qualied technician to clean
the carburettor
The engine
produces smoke
N.B.
The grass trimmer conforms to current safety requirements. Repairs to the grass trimmer should always be
carried out using original spare parts and by a qualied technician, failure to do so may result in injury.
Incorrect fuel mixture Use petrol and 2-stroke oil with
a 40:1 (2.5%) ratio
15
Disposal
Follow local ordinances when disposing of this product. If you are unsure of how to dispose of this
product, please contact your municipality.
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Specifications
Model: YT9231
Dry weight: 5.5 kg
Motor: Air-cooled 2-stroke engine
Fuel: Mixture of petrol & oil 40:1 (2.5 %)
Cylinder volume: 25 cm³
Cutting width: 38 cm
Ignition: Electronic
Max engine output: 0.74 kW at 7500 rpm
Operating speed: 7000-8500 rpm
Max engine speed: 8500 rpm
Tickover speed: 3500 rpm
Spark plug: TORCH L8RTC, Champion CJ7Y, NGK BPMR7A
Tank capacity: 0.45 litres
Shaft length: 132 cm
Cutting line: Nylon line Ø 2 mm, double lines
Sound: LwA: 102 dB (A)
LpA: 88 dB (A)
Vibration: Front handle: 7.38 m/s²
Rear handle: 5.68 m/s²
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Grästrimmer Cotech 1 hk/0,74 kW
Art.nr: 40-6002 Modell: YT9231
Läs igenom hela bruksanvisningen före användning och spara den sedan för framtida bruk.
Vi reserverar oss för ev. text- och bildfel samt ändringar av tekniska data.
Vid tekniska problem eller andra frågor, kontakta vår kundtjänst (se adressuppgifter på baksidan).
Innehållsförteckning
Säkerhet .........................................17
Produktbeskrivning ....................... 19
Montering ......................................20
Bränsle och smörjning ................... 23
Start av motor ................................24
Användning ....................................26
Skötsel och underhåll ................... 27
Förvaring ........................................29
Felsökningsschema .......................29
SVENSK A
Avfallshantering ............................30
Specifikationer ..............................30
Säkerhet
Produktmärkning med säkerhetssymboler på maskinen
Använd skyddshjälm, skyddsglasögon/visir och hörselskydd.
Använd skyddshandskar.
Använd skyddsskor.
Läs hela bruksanvisningen.
Stenar och andra föremål kan kastas iväg av grästrimmern.
Tillåt ingen annan än användaren vara nära grästrimmern när den används. Barn, husdjur och
åskådare skall benna sig på ett avstånd av minst 15 meter från grästrimmern när den används.
Produkten är endast avsedd för att användas med trimmerlina. Använd aldrig sågklinga eller
andra tillbehör.
Maximalt varvtal för riggrör.
Varning! Het yta.
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Säkerhetsinstruktioner
1. Använd skyddsskor, åtsittande kläder och skyddsglasögon/visir, hörselskydd och hjälm.
2. Använd aldrig grästrimmern om du är trött, sjuk, upprörd eller under påverkan av mediciner som gör dig
trött. Använd den inte heller om du är påverkad av alkohol eller droger.
3. Bränslesäkerhet
- Var alltid aktsam vid hantering av bränsle. Öppna tanklocket försiktigt och släpp ut trycket som
kan ha uppkommit i tanken. Torka upp allt spill och ytta sedan grästrimmern minst 3 meter från
tankningsplatsen innan den startas.
- Avlägsna alla antändningskällor, gnistor, öppen låga, tobaksrökning etc. från platser där bränsle
blandas, hanteras eller förvaras.
- Rök inte under tankning eller under arbete med grästrimmern.
SVENSK A
4. Tillåt ingen annan än användaren vara nära grästrimmern vid start eller arbete med den. Barn, djur och
åskådare skall vara på ett avstånd av minst 15 meter från grästrimmern när den används.
5. Håll alltid grästrimmern stadigt i båda handtagen med ngrarna på en sida av handtaget och tummen på
andra sidan när motorn är startad.
6. Håll undan alla kroppsdelar från trimmerlinan när motorn går.
7. Kontrollera före start att trimmerlinan inte har kontakt med något föremål.
8. Transportera endast grästrimmern med motorn avstängd.
9. Inspektera alltid grästrimmern före start. Starta den inte om det nns utslitna, saknade eller skadade
delar. Använd aldrig en grästrimmer som är skadad, feljusterad eller som inte är monterad på rätt sätt.
10. All annan service på grästrimmern än de som nämns i bruksanvisningen ska utföras av kvalicerad personal.
11. Stäng av grästrimmern innan den läggs ner på marken.
12. Var extra uppmärksam när du kapar små buskar eller tjockt gräs som kan fastna i trimmerhuvudet.
13. Håll handtagen rena, torra och fria från olja eller bränsle.
14. Använd grästrimmern endast utomhus eller i väl ventilerade lokaler. Starta den aldrig i ett stängt rum
eller byggnad. Avgaserna innehåller koloxid och är farliga att andas in.
15. Undvik att föra trimmerhuvudet nära små föremål som kan kastas iväg. Kontrollera innan arbetet
påbörjas ifall det nns småstenar etc. på ytan som ska trimmas.
16. Stå alltid nedanför trimmern om du använder den på lutande mark. Använd aldrig trimmern på lutande
mark om det nns den minsta risk att du tappar fotfästet, ramlar eller glider ner.
17. Håll grästrimmern ren från gräsrester och andra beläggningar. Var särskilt noga med skydd,
trimmerhuvud och motor.
18. Grästrimmern får endast användas av vuxna personer som har läst bruksanvisningen.
19. Använd endast tvåtaktsbränsle med inblandning av 2,5 % tvåtaktsolja (40:1) avsedd för luftkylda
tvåtaktsmotorer av god kvalitet. Användning av bensin utan oljeinblandning leder snabbt till motorskador
som inte omfattas av garantin.
20. Använd inte grästrimmern utan ljuddämpare eller ljuddämparkåpa.
21. Håll i grästrimmerns båda handtag på ett säkert sätt med ngrarna på en sida av handtaget och tummen
på andra sidan.
22. Ljuddämparen blir mycket het. Håll undan händer och andra kroppsdelar.
23. Trimmerhuvudet får inte lyftas upp under arbetet eftersom trimmerlinan kan skada användaren.
Arbeta så nära marken som möjligt.
24. Grästrimmern får inte användas till något annat ändamål än trimning av gräsmattor och trädgårdar.
25. Grästrimmern får inte användas om skyddet saknas eller är skadat.
26. Produkten får inte ändras och/eller användas för andra arbetsmoment eftersom risken för olycksfall ökar
och garantin inte gäller.
27. Använd inte grästrimmern i närheten av brännbara gaser och vätskor eftersom det kan leda till brand
eller explosion.
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