CO/Tech YT4755-UK Operation instructions

ENGLISH
SVENSKANORSKSUOMI
DEUTSCH
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 manualen
för framtida bruk.
Viktig informasjon:
Les disse anvisningene nøye og forsikre deg
om at du forstår dem før du tar produktet i bruk.
Ta vare på anvisningene for seinere bruk.
Tärkeää tietoa:
Lue nämä ohjeet huolellisesti ja varmista
että olet ymmärtänyt ne, ennen kuin alat
käyttää laitetta. Säilytä ohjeet myöhempää
tarvetta varten.
Wichtiger Hinweis:
Vor Inbetriebnahme die komplette
Bedienungsanleitung durchlesen und
aufbewahren.
Art.no Model
18-3155 YT4755-UK
40-7936 YT4755
Chainsaw
Elkedjesåg
Elektrisk kjedesag
Ketjusaha
Elektro-Kettensäge
Ver. 20140116
Original instructions
Bruksanvisning i original
Original bruksanvisning
Alkuperäinen käyttöohje
Original Bedienungsanleitung

2
ENGLISH
Electric Chainsaw, 1800 W
Art.no 18-3155 ModelYT4755-UK
40-7936 YT4755
Read theentire instruction manual before using theproduct and keep it for future reference. We reserve theright
for any errors in text or images and any necessary changes made to technical data. If you have any questions
concerning technical problems please contact our Customer Services (see address on reverse.)
Warning! When you are using electric hand tools theincluded safety instructions should be followed
to avoid risk of fire, electric shock, and personal injury.
Always pull theplug out of thewall socket before servicing and adjusting theproduct.
1. Safety Requirements – Handheld power tools
General Safety Requirements – EN 60745-1
Warning! Read all theinstructions. Failure to adhere to thefollowing instructions may lead to electric shocks,
fires and/or serious injury. The term “power tools” in thewarning text below refers to your handheld mains
operated or battery operated tool.
SAVE THESE INSTRUCTIONS.
1) Work area
a) Keep thework area clean and well illuminated. Cluttered and poorly lit areas invite accidents.
b) Do not use power tools in explosive environments, e.g. near flammable liquids, gases or dust.
Power tools generate sparks that can easily ignite dust or fumes.
c) Keep children and other bystanders away from thearea where you are using thepower tool.
Distractions can cause you to lose your concentration and control.
2) Electrical safety
a) The power tool’s plug must fit correctly into thewall socket. Never modify theplug in any way. Never use
anadaptor together with earthed power tools. Unmodified plugs and suitable wall sockets decrease therisk
of electric shock.
b) Avoid physical contact with earthed objects, such as pipes, radiators, ovens or refrigerators.
There is anincreased risk of receiving anelectrical shock if your body is earthed.
c) Do not expose thepower tool to rain or other wet conditions. If water gets inside apower tool it increases
therisk of electric shock.
d) Do not abuse thelead. Never use thelead to carry thetool or pull theplug from thewall socket.
Keep thelead away from heat, oil, sharp edges and movable parts. Damaged or tangled leads increase
therisk of electric shock.
e) When using power tools outdoors, use anextension lead that is suitable for this purpose.
Use of anextension lead designed for outdoor use decreases therisk for electric shock.
f) If for some reason you must use apower tool in awet environment, always connect it to themains via
an earth-fault circuit breaker such as anRCD (residual current device). Using anRCD significantly reduces
thechances of you receiving anelectric shock.

3
ENGLISH
3) Personal safety
a) Pay attention to your actions and use common sense when using power tools. Never use power tools if
you are tired or under theinfluence of drugs, alcohol or medication. One moment of inattention while using
apower tool may result in serious injury.
b) Use protective equipment. Always wear safety glasses. Using protective clothing such as dust masks,
non-slip safety shoes, helmets and ear defenders when needed decreases therisk of injury.
c) Avoid accidental starts. Make sure that thepower switch is set to OFF before plugging thetool into awall
socket. Never carry apower tool with your finger on thetrigger and never connect thepower tool to awall
socket when theswitch is set to ON, since it may result in injury.
d) Remove all service tools/keys before switching on thepower tool. A service tool left on amoving part of
thepower tool may result in injury.
e) Do not overreach. Make sure you stand steady and well balanced at all times. This will allow you to have
more control in unexpected situations.
f) Wear suitable clothing. Do not wear loose-fitting clothing or jewellery. Keep hair, clothes and gloves away
from moving parts. Loose-fitting clothes, jewellery or long hair could become caught in moving parts.
g) If equipment for dust extraction or collection is available, make sure that it is connected and used properly.
Using technical aids may decrease dust related hazards.
4) Use and maintenance of power tools
a) Do not force thepower tool. Use apower tool suitable for thework you are about to perform. The proper
power tool will perform thetask better and safer if used at thecorrect feed rate.
b) Never use thepower tool if thepower switch does not switch thetool on and off properly. All power tools
that cannot be controlled by thepower switch are dangerous and must be repaired.
c) Unplug thelead from thewall socket before making any adjustments, changing accessories or storing
thepower tool. These precautions reduce therisk of thepower tool starting unexpectedly.
d) Store any power tools that are not being used out of children’s reach. Do not allow people who are
unfamiliar with thetool or its functions to operate thetool. Power tools can be dangerous if they fall into
thehands of inexperienced users.
e) Maintaining power tools. Check for any incorrect settings, parts that catch, broken parts or anything else
which may cause thepower tool to malfunction. If something is damaged it must be repaired before use.
Many accidents are caused by poorly maintained power tools.
f) Keep tools sharp and clean. Properly maintained cutting tools with sharp blades are less likely to jam and
are easier to control.
g) Use thepower tool, accessories and similar according to theinstructions and in anappropriate way suitable
for thetype of power tool used. Also take into consideration your work environment and thetype of work
to be done. Using thepower tool for apurpose other than that for which it is intended could result in
adangerous situation.
5) Service
a) Repairs and service should only be performed by qualified tradesmen, and only with original spare parts.
This guarantees that thesafety of thepower tool is maintained.

4
ENGLISH
Chainsaw warnings
• Keep all body parts away from thechainsaw when thechain is moving.
• Make sure that thesaw chain is not in contact with anything when thechainsaw is started.
• A moment’s carelessness whilst using thechainsaw can lead to thechain snagging on your clothing
or a part of your body.
• Always hold therear handle of thechainsaw in your right hand and thefront handle in your left hand.
Holding thechainsaw with thewrong hands increases therisk of injury and should be avoided.
• Use protective eyewear and hearing protection. In addition, it is recommended that personal protection
equipment for thehead, hands, legs and feet are also worn. Wearing thecorrect protective equipment
reduces therisk of injury from flying objects and accidental contact with thesaw chain.
• Do not use thechainsaw whilst up in atree. Using achainsaw whilst in atree can lead to personal injury.
• Make sure that you are steady and well-balanced and only use thechainsaw when standing on firm, level
ground, not steep gradients. Slippery or unstable working positions such as ladders can lead to loss of
balance and loss of control over thechainsaw.
• When felling trees or lopping off thick branches that are under tension or compression, you should always
be prepared for movement. The sudden release of tension in thefibres of thetree can spring back towards
thechainsaw and cause theuser to lose control.
• Be very careful when sawing shrubs and shoots. Thin twigs can get caught in thesawchain and be
projected towards you or cause you to lose your balance.
• Always carry thechainsaw by thefront handle with themotor switched off and theguide bar pointing away
from your body. Always fit thecover over theguide bar when transporting thechainsaw. Correct use and
handling of thechainsaw will minimize your chances of coming into contact with therotating sawchain.
• Always follow themanual’s recommendations regarding lubrication, chain tensioning and replacement of
accessories. An incorrectly tensioned or lubricated sawchain can snap or increase therisk of kickbacks.
• Always keep thehandles dry, clean and free of oil and grease. Oily and greasy handles are slippery and can
cause you to lose control of thechainsaw.
• Saw only wood. Do not use thechainsaw for any purpose other than that for which it was intended.
For example: Never saw plastic, brick or other building material not made of wood. Using thechainsaw
for another purpose than that for which it was intended can be dangerous.
Kickback – causes and preventive measures
• Kickback happens when theguide bar or its nose comes into contact with anobject or when thewood
being sawed closes together and pinches thechain.
• When theguide bar nose hits anobject it can cause sudden uncontrolled movement of theguide bar
upwards and backwards towards theuser.
• If thesawchain is pinched it can also cause theguide bar to kick back towards theuser.
• Any of theabove occurances can cause theuser to lose control and result in serious injury. Never rely
entirely on thesaw’s built-in safety features. As theuser of thechainsaw you are always responsible for
taking all possible precautionary measures to prevent accidents.
• Kickback is aresult of misuse and/or incorrect technique or poor working environment. It can be prevented
by taking thefollowing precations:
• Hold thehandles of thechainsaw firmly with both hands using all your fingers and thumbs. Keep your body
and arms in such aposition that you can keep your balance if akickback should occur. The force of akickback
can be controlled by theuser if theproper precautions have been taken. Do not let go off the handles.
• Do not over-reach and always keep thesaw below chest height. This helps prevent thenose of theguide bar
from coming into contact with obstructions unintentionally and gives you better control over thechainsaw if
anything untoward should happen.
• Use only replacement guide bars and chains of thetypes specified by themanufacturer. Use of incorrect
guide bars and/or chains can result in thechain coming off or kickback.
• Follow themanufacturer’s instructions regarding sharpening and maintenance. Grinding therakers too much
increases therisk of kickback.

5
ENGLISH
1.1 Product Safety symbols
Warning!
Do not saw using thenose of theguide bar as this can cause thebar
to kickback suddenly towards theuser.
Always hold thesaw in both hands, theright hand on therear handle
and theleft hand on thefront handle. Under no circumstances must
the chainsaw be used with one hand.
Pull out theplug immediately if theextension lead is damaged, do not touch thelead,
only the plug itself.
Wear protective headgear, protective eyewear/visor and ear defenders.
Read theinstruction manual, follow thesafety rules and observe thewarnings.
Do not expose themachine to rain or moisture.
Warning!
Sound power (Lwa).

6
ENGLISH
101
106107
104105
102103
108 109 10
17 18
11
13
12
14 15
16
Fig. 1
Fig. 2 19
2. Description
1. Rear handle
2. Power trigger lockout button
3. Power trigger
4. Front handle
5. Combined kickback guard/chain brake
6. Saw chain
7. Guide bar
8. Spiked bumper
9. Oil cap
10. Oil tank/level display
11. Cable hanger
12. Mains lead
13. Rear hand guard/chain catcher
14. Sprocket
15. Guide bar bolt
16. Chain tensioner
17. Sprocket cover
18. Guide bar locking knob
19. Chain tensioning knob

7
ENGLISH
A
B
16
3. Pre-use checks
Check that thechainsaw’s power supply marked on therating plate conforms to your local mains power supply.
Check that thechainsaw is undamaged and safe to use. Make sure that thelubrication system is working and
that there is plenty of oil in thetank (see fig. 9). Top up thechain oil before it falls to the“MIN” mark. When theoil
level is above this mark thelubrication system will be work well. Check thechain lubrication as follows: Start
thechainsaw and hold thebar roughly 20 cm above atree stump or other light background. If thelubrication
system is working properly, some oil will fly off thechain and show up on thelight object. If no traces of oil
appear, you should clean theoutlet hole (fig. 6, C) and theupper hole in theguide bar (fig. 6, B), or contact your
retailer or service centre. (Read the“Topping up thechain oil and lubrication” section). Make sure that thechain
is properly tensioned (read the“Chain tensioning” section). Make sure that thekickback guard/chain brake
works properly (read Resetting thekickback guard/chain brake).
3.1 Fitting the guide bar and saw chain
The chainsaw must be unplugged.
Important: The kickback guard/chain brake (5) must be in theupright position (see fig. 3, 4).
A. A combined tensioning/locking knob on theside plate
The tensioning/locking knob consists of two parts: A centre knob (18) for locking theguide bar (and for locking
thetensioning knob) and anouter knob (19) for tensioning thechain (see fig. 5).
B. A tensioning wheel for thechain tension, mounted on theguide bar.
The chain tensioner (16) is fixed to theguide bar by ascrew (A) through thelower hole and aguide pin in
the upper hole (B) of theguide bar (see fig. 6).
18
19
C
The guide bar and chain are not fitted when thesaw is sold. This chainsaw has anew type
of system for chain tensioning and guide bar locking that consists of two parts:
Upright position Forward/Engaged
position
Fig. 3 Fig. 4
Fig. 5 Fig. 6
55

8
ENGLISH
1018
Assembling theguide bar and saw chain:
1. Turn thecentre locking knob (18) anticlockwise to loosen it and
remove thesprocket cover (19).
2. The guide bar has atensioning wheel (16) fixed to it. Turn
theguide bar so that thetensioning wheel is on theoutside
of thebar, fit thebar in such away that thebolt (15) sticks
through thehole in thetensioning wheel (see fig.8).
3. Turn thetensioning wheel (16) anticlockwise as far as it will turn.
4. Turn thesaw chain so that theedges of thecutting links on
thetop of thebar are pointing forwards toward thenose of
thebar (the saw chain pulls along thebottom of thebar and
pushes along thetop of thebar).
5. Fit thesaw chain so that it passes over thedrive sprocket and in theguide track all theway round
theguide bar. (See fig. 8)
6. Turn thetensioning wheel clockwise and carefully tension thechain, making sure that it sits properly
on thebar and sprocket.
7. Attach thesprocket cover (17) by lining up thepeg (C) on theback of thecover with thehole (D) in thesaw
and then folding down thecover so that thebolt of thelocking knob (18) is against theguide bar bolt (15).
Turn thelocking knob (18) clockwise so that it screws on to theguide bar bolt (15). The chain can now be
tensioned by turning theouter, tensioning knob (19) clockwise.
(The centre knob (18) is only for locking theguide bar and theouter knob (19) is for tensioning.)
8. Checking thechain tension: The saw chain should be able to be lifted approximately 5 mm in themiddle of
theguide bar when thetension is correct. Adjust as necessary: Undo thelocking knob (18) alittle, adjust
thechain tension by turning theouter knob (19), then tighten thelocking knob (18) to keep theset tension.
Fig. 7
1019
D
C
17
Fig. 8
1014 15
16

9
ENGLISH
3.2 Chain tension
Always pull theplug out of thewall socket before servicing and adjusting theproduct.
Wear protective gloves.
Adjusting thechain tension
1. First check thechain tension: The saw chain should be able to be lifted approximately 5 mm in themiddle of
theguide bar when thetension is correct.
2. Adjust it if necessary: Undo theblack locking knob (18) alittle, adjust thechain tension by turning theouter
knob (19).
3. Tighten thelocking knob (18) to keep theset tension. Always check that thechain is sitting properly on
the sprocket and in theguide track all theway around thebar before tightening thelocking knob.
3.3 Topping up the chain oil
Wipe theoil cap (9) before taking it off to prevent dirt from falling into thetank. Unscrew thecap and refill with oil.
The oil level in thetank (10) can be seen by looking through theglass under thefilling hole. Fill thetank to
the top and screw thecap on tightly. Wipe off any spilt oil. (see fig. 9).
3.4 Attaching the extension lead to the chainsaw
Use only extension leads intended for outdoor use and which are capable of carrying sufficient current (core
area of at least 1.5 mm², max 80 yards long), fix theextension lead to therear handle as shown in thefigure.
If you use anextension lead longer than 30 yards, you might get some voltage drop and notice that thesaw
loses power. (see fig. 10).
3.5 Chain lubrication
The saw chain and guide bar must be lubricated constantly when thesaw is running to prevent excessive wear.
The chainsaw lubricates itself automatically. Never use thechainsaw if thelubrication system is not working,
otherwise both thechain and theguide bar will be soon wear out. It is therefore important that you check
thelubrication and oil level at every oppurtunity. (Fig. 9) Never use thechainsaw if theoil level is below “MIN”.
Min: When theoil level falls below “MIN” or 5 mm below thebottom of the“window” in theoil tank (10),
top up theoil.
Max: Fill theoil tank up to thetop of the“window”.
9
10
Max.
Min.
Fig. 9 Fig. 10

10
ENGLISH
Checking the chain lubrication
Check thechain lubrication as follows: Start thechainsaw and hold thebar roughly 20 cm above atree stump
or other light background. If thelubrication system is working properly, some oil will fly off thechain and show
up on thelight object. If no traces of oil appear, you should clean theoutlet hole (C) and theupper hole (B)
in theguide bar (fig. 6 ), or contact your retailer or service centre. Be careful not to let thesaw chain come in
contact with theground.
Chain oil
The useful life of theguide bar and saw chain depend on which chain oil is used. Use only chain oil and never
waste oil, etc. Use environmentally friendly oil and keep it in asealed container specially reserved for chain oil.
3.6 Guide bar
The guide bar (7) wears out more at thenose and along thebottom edge, turn thebar over when you remove it
to sharpen thechain so that it wears evenly on both edges. File off any unevenness in thebar using aflat file.
Sprocket
The sprocket (14) also becomes worn, check it regularly for signs of wear or deformity and change it if
necessary. A worn sprocket will wear out anew saw chain more quickly. Contact your retailer or service centre
for replacement sprockets.
Blade cover
Put theblade cover on theblade as soon as you have finished sawing and whenever storing or
transporting thesaw.
3.7 Kickback guard/chain brake
In theevent of kickback, thechain brake wil be activated by thefront handle guard (5) being pushed forward by
your hand. The chain will stop immediately (fig. 11).
Testing the kickback guard
Warning! Always check thechain brake before using thechainsaw.
Hold thechainsaw firmly in both hands,
start it and push thekickback guard
forward (towards “0”) with your wrist.
The saw chain should stop immediately.
Resetting the kickback guard/chain brake
The chain brake must be reset before thesaw can be started again: Switch off thechainsaw (release thepower
switch), push thekickback guard (5) back until it returns to theupright position I (fig. 11), thekickback guard is
now reset.
0
I
Fig. 11