BKS 45-2 - Saw ATIKA - Free user manual and instructions

USER MANUAL BKS 45-2 ATIKA

Black-and-white photo of a pile of freshly cut tree logs with a tool in the foreground (no text or symbols visible)

Seite 2

Original instructions – Safety instructions – Spare parts

Carefully read operator's manual before handling the machine.

Page 31

EC Declaration of Conformity 17

Extent of delivery 17

Operating times 17

Symbols on the chain saw 18

Symbols Original instructions 18

Proper use 18

Residual risks 18

Safety instructions 19

– Personal protective clothing 19
– Before sawing 19
- Operating 19
- While sawing 20
– Saw backstroke 20
- General notes 20
– Safe handling with fuels 21

Vibrations

Work instructions (saw techniques)

Assembly

- Installing the guide bar and the saw chain 22

- Clamping of saw chain 23

Preparing for startup

• Chain lubrication 23
  – Filling up saw chain oil 23
• Checking the chain lubrication 23
  – Fuelling 23
• Mixing 24
  – Fuelling the chain saw 24

Inbetriebnahme

• Chain brake 24
• Checking the chain brake 24
• Before starting the chain saw 24
• Starting with cold engine 24
• Stopping the engine 25
• Starting with warm engine 25

Start-up

• Adjusting the chain lubrication 25
  — Saw chain and guide bar 25
• Sharpening of saw chain 25
• Cleaning the guide bar 26
  -Chain wheel 26
• Cleaning the air filter 26
• Replacing the fuel filter 26
• Checking/replacing the spark plug 26
• Checking the ignition spark 27
• Chain catcher 27
  – Silencer/exhaust outlet 27
• Adjusting the carburetor (idle speed) 27
• Care 27

Transport

Storage

Guarantee

Maintenance and cleaning schedule

Possible faults

Technical data

Description of device / spare parts

EC Declaration of Conformity

according to EC directive: 2006/42/EC

We,

ATIKA GmbH

Josef-Drexler-Str. 8, 89331 Burgau - Germany

herewith declare under our sole responsibility that the product

Benzinkettensäge (Petrol chain saw) Type BKS 45-2

Serial number: 000001-020000

is conform with the above mentioned EC directives as well as with the provisions of the guidelines below:

2014/108/EU and 2000/14/EC

Following harmonized standards have been applied:

EN ISO 11681-1:2011

Conformity Assessment Procedures: 2000/14 EC - Appendix V

Measured sound power level L_WA 110,07 dB (A).

Guaranteed sound power level L_WA 113 dB (A).

EC type examination carried out by:

TÜV Rheinland Product Safety GmbH

Certificate No.: BM 50262690

Duly authorised person for the compilation of technical documents:

Engineering design management

Extent of delivery

After unpacking, check the contents of the box

▶ That it is complete
▶ Check for possible transport damage

Report any damage or missing items to your dealer, supplier or the manufacturer immediately. Complaints made at a later date will not be acknowledged.

1 chain saw	1 original instructions
1 guide bar	1 assembly and operating instruction sheet
1 saw chain	1 warranty declaration
1 scabbard	assembling tools
1 fuel mixing can

Operating Times

Before initiating the device please observe the provisions pertaining to corresponding laws (regional provisions) for the noise control.

Symbols on the chain saw

Warning! This chain saw may cause serious injury.

Carefully read operator's manual before handling the machine.

Risk by kickback! Do not saw with the guide bar tip.

Petrol and oil are a fire hazard and can explode. Fire, open light and smoking are prohibited.

Always hold the chain saw with both hands when working with it.

Wear cut-proof protective clothing.

Wear hardhat, eye and ear protection.

Wear protective gloves.

Wear safety shoes.

Warning of hot surfaces.

Danger of burning!

Do not touch hot engine parts. Such parts may remain hot for a short time even after the machine has been stopped.

Fuel mixture 40:1

Stop the engine!

Saw chain oil

Fuel, fuel mixture

Mind the running direction of the chain links

Chain brake: ← released

Chain brake: → applied

Choke:

Choke lever pulled out: start position (cold engine)

Choke lever pressed in: operating position (warm engine)

Chain lubrication adjustment

Symbols Original instructions

	Threatened hazard or hazardous situation. Not observing this instruction can lead to injuries or cause damage to property.
	Important information on proper handling. Not observing this instruction can lead to faults.
	User information. This information helps you to use all the functions optimally.
	Assembly, operation and servicing. Here you are explained exactly what to do.
	Important notes for environmentally compatible conduct. Failure to observe these instructions may lead to environmental damage.
...	Please refer to the attached assembly and operating instruction sheet for references to figure numbers in the text.

Proper use

■ This chain saw is only suited for sawing wood in the open
■ Do not use the chain saw for sawing of building materials and synthetic materials.
■ The intended usage also includes compliance with the assembly, operating, servicing and repair conditions prescribed by the manufacturer and following the safety instructions included in the instructions.
■ Any other use is deemed not to be use as prescribed. The manufacturer is not liable for any type of damage resulting from this: the user bears the sole risk.

Residual risks

Even if used properly, residual risks can exist even if the relevant safety regulations are complied with due to the design determined by the intended purpose.

Residual risks can be minimised if the "Safety information" and the "Intended usage" as well as the whole of the original instructions are observed.

Observing these instructions, and taking proper care, will reduce the risk of personal injury or damage to the equipment.

■ Of kickback when touching the guide bar tip with a hard object.
■ Risk of injuries of fingers and hands by the tool (saw chain).
■ Injury from parts of the workpiece spinning off.
■ Impairment of hearing when working on the machine for longer periods of time without ear protection.
■ Burning when touching hot parts.
■ Carbon monoxide poisoning when using the device in closed or poorly ventilated rooms.

■ Fire danger.

In addition, in spite of all the precautionary measures taken, non-obvious residual risks can still exist.

Safety instructions

Before starting this device, read and keep to the following advice. Also observe the preventive regulations of your professional association and the safety provisions applicable in the respective country, in order to protect yourself and others from possible injury.

Keep these security advices always together with the chain saw.

Repair works on the device must be carried out by the manufacturer or by companies appointed by the manufacturer respectively.

■ Persons who work with the chain saw must exhibit on request a training certificate (chain saw training course) appropriate to the intended use and be familiar with the use of the chain saw and personal protective equipment.
■ Minors are not allowed to work with the chain saw.
■ Be attentive. Be careful what you do. Behave sensibly when working. Do not use the device when you are tired or under the influence of drugs, alcohol or medicaments. One moment of carelessness when using the device can result in serious injuries.
■ Make yourself familiar with the equipment before using it, by reading and understanding the original instructions.
- Do not use the machine for unsuitable purposes (see "Normal intended use").

Personal protective equipment

■ Never work without suited protective equipment.

• Do not wear loose-fitting clothes or jewellery, they could be caught by movable parts.
  — wear a hair-net if your hair is long
• certificated hardhat in situations where injuries to the head must be expected (e.g. when chopping or releasing trees).
• Visor
• ear protection
• Protective jacket with striking colour
  — Cut-proof trousers and gloves
• Anti-slipping cut-proof boots (safety shoes) with steel-toes
• Fire extinguisher and spade (sparks may occur during sawing)
• First-aid material
  — Mobile telephone if required

Safety instructions - before sawing

Carry out the following checks before the initiation and regularly during the sawing process. Observe the relevant sections in the operating instruction manual:

■ Is the chain saw assembled completely and properly?

■ Is the chain saw in good and safe condition?
- Only use a suited guide bar/saw chain combination as described under “Technical data”. Incorrect combinations increase the risk of kickbacks.
■ Is the oil tank filled (chain lubrication)?
Check the oil level on a regular basis. Top up saw chain oil without delay to prevent the saw chain from running dry.
■ Is saw chain clamped correctly?
Observe the points in paragraph „Clamping saw chain“.
■ Is saw chain sharpened correctly?
You only work well and safely with a sharpened saw chain.
■ Is chain brake released and works properly?
Observe the points in paragraph "Checking the chain brake".
- Are the handles clean and dry – free of oil and resin?
■ Before starting your work make sure that:
- no other persons, children or animals stay within the woring area,
- you can always step back without any barriers,
- your standing area is free from foreign objects, brushwood and branches,
– you have always a secure standing position.
- Is workplace free of risks to stumble? Keep your workplace in an orderly condition! Untidiness can result in accidents. Risk of stumbling.
■ Take into consideration environmental influences:
- Delay the work in case of disadvantageous weather (rain, snow, ice, wind) – increased risk of accidents!
- Do not work under insufficient light conditions (e.g. fog, rain, snow flurry or twilight). You can not see anymore details within the falling area – risk of accident.
- Do not use the chain saw near inflammable liquids or gases - Risk of fire.
■ The operator is responsible for accidents or risks which occur to other persons or their properties.
■ Did you read and understand all advices?

Safety instructions - operation

• 4 Never saw with only one hand. Hold the chain saw always firmly with both hands, left hand on the front handhold (4) and right hand on the rear handhold (29).
• 9 Hold the chain saw slightly on the right of the own body.
• Avoid abnormal posture. Provide a safe standing position and keep at any time the balance.

■ Never work

– with stretched arms
– on hardly accessible places
— above shoulder height
— standing on a ladder, a staging or a tree.

■ Activate the chain brake when moving to a tree.

■ Before leaving the chain saw (work break) bring it in a safe condition (cover the guide bar, apply the chain brake) and put it on a place where nobody is endangered. Secure the chain saw against unauthorized access.

Safety instructions - while sawing

■ Never work alone. Keep acoustic and visual contact to other persons at all times to allow immediate first aid in emergency cases.
- Immediately stop the engine at imminent danger or in emergency cases.
■ Never leave the saw running unattended.
■ This petrol chain saw produces harmful substances!

Never run the chain saw in closed or poorly ventilated rooms. Provide for a sufficient change of air when working in wells, trenches or confined spaces. There is the risk of carbon monoxide poisoning or death by suffocation.

■ Immediately stop working when you feel unwell (e.g. headache, dizziness, nausea, etc.). Otherwise there is an increased risk of accidents.
- 3 When switching on the chain saw must be supported and held safely. Chain and guide bar must stand free.
■ Start cutting only when the saw chain has reached the full number of revolutions.
- Do not overload the machine! You work better and safer in the given performance range.
■ Do not use the chain saw for lifting or moving of wood.
■ Make breaks when sawing so that the engine can cool down.
- Do not place a hot chain saw in dry grass or onto inflammable objects.
■ Never touch the silencer and the engine while the saw is running or shortly after it was stopped. Danger of burning!
■ Never get in contact with the running saw with metallic fences or the ground.
■ Make sure that the wood is free of foreign object (stones, nails etc).
■ Make sure that the wood can not turn when sawing.
■ Saw splintered wood with care. There is risk of injury by wood pieces carried away.
■ Avoid saw backstroke by a correct guiding of the saw.

[Non-Text]

Note: Safety instructions - saw backstroke

• 8 Use the claw stopper (31) for fixing the chain saw on the wood. Use the claw stopper when sawing as lever.
  ■ Do not use the chain saw for lifting or moving wood.
• Let the chain saw work by producing a light leverage pressure over the claw stopper. When sawing do not press with strength.
• When sawing thicker perches or trunks set back the claw stopper (31) on a deeper point. For setting back release the claw stopper from the wood and place it again in a deeper position. Do not remove the saw here out of the cut.
• Be careful at the end of a sawing cut. As far as the saw leaves the wood the force of weight changes. There is risk of accident for legs and feet.
  ■ Remove the chain saw only with running saw chain out of the cut.
  ■ If the saw chain gets jammed in the wood, stop it immediately. Use a wedge to free the guide bar.

Safety instructions - saw backstroke

■ What is saw backstroke? Saw backstroke is the sudden strike upwards or backwards of the running chain saw in direction of the operator.

This happens when

- 6 the guide bar tip gets in contact with the sawing

material (unintended) or other hard objects.

— the saw chain is jammed at the guide bar tip.

The chain saw reacts uncontrolled and causes frequently heavy injuries with the operator.

Carry out lateral cuts, diagonal cuts and longitudinal cuts increased attention because here the claw stopper (36) is put on.

How to avoid saw backstroke?

• 4 Always hold the chain saw firmly with both hands.
• 5 For better control saw with the lower edge of the guide bar. Hold the chain saw as close as possible to the horizontal position when contacting wood.
  ■ 6 Never saw with the guide bar tip.
• 7 Sawing with the upper guide bar edge may cause a saw backstroke if the saw gets jammed or hits a hard object in the wood.
  ■ Start cutting only with running saw chain.
  ■ Only work with sharp and correctly sharpened saw chain.
  ■ Only work with correctly clamped saw chain.
• 8 Use claw stopper (31) as lever.
  ■ Never work above height of shoulders.
  ■ Never cut through several perches at the same time. When releasing make sure that no other perch is touched.
  ■ 9 If possible use a sawhorse when cutting to length.
  ■ Stab cuts shall only be carried out by instructed personal.

General safety instructions

■ Stop the machine when:

- contact of chain saw with soil, stones, nails or other foreign substances

→ Check immediately chain and guide bar.

– carrying out repair works
- maintenance and cleaning
- removal of faults
- transport
— clamping again the chain
- chain change
- Leaving the machine (also during temporary interruption)

■ Maintain your chain saw with care:

• Comply with the maintenance instructions and the advices for lubrication and for the tool change.
• Keep your tools sharp and clean in order to be able to work better and safer.
• Keep the handholds dry and free from resin, oil and grease.

■ Check the machine for possible damage:

• Carefully check the machine, in particular after it has been dropped.
• Before continuing to use the machine, the protective devices must be inspected to ensure that they work perfectly and with their intended function. Only operate the machine with complete and correctly attached safety

equipment and do not alter anything on the machine that could impair the safety.

- Check whether the movable parts function perfectly and do not stick or whether the parts are damaged. All parts must be correctly installed and fulfil all conditions to ensure perfect operation of the saw

- Damaged guards and parts must be properly repaired or exchanged by a recognized, specialist workshop; insofar as nothing else is stated in the instructions for use.

— Damaged or illegible security labels have to be replaced.

■ Do not allow any tool key to be plugged in!

Before switching on, check always that all tools are removed.

■ Store unused equipment in a dry, locked place out of the reach of children.

Do not carry out repair operations on the machine other than those described in section "Maintenance" but contact the manufacturer or authorized customer service centre.

Repairs to other parts of the machine must be carried out by the manufacturer or one of his customer service points.

Use only original spare parts, accessories and special accessory parts. Accidents can arise for the user through the use of other spare parts. The manufacturer is not liable for any damage or injury resulting from such action.

Safety instructions - Safe handling with fuels

Fuels and fuel vapours are inflammable and may cause serious injury on the skin or when inhaled. Therefore be careful and provide sufficient ventilation when handling with fuels.

■ Do not smoke and avoid open flames when fuelling.
■ Wear gloves when fuelling.
■ Do not fuel in closed rooms.
■ Stop the chain saw and allow it to cool down.
■ Avoid spilling of fuel or oil. Clean the chain saw immediately when you have spilled fuel or oil. Change your clothes immediately when you have spilled fuel or oil on them.
■ Make sure that no fuel can come into the soil.
- Carefully close the tank cap after fuelling and check that it does not get loose during operation.
- Check that there is no leakage on the tank cap and fuel lines. If there are leaks this product may not be started.
■ Never use a saw with damaged ignition cable and spark plug connector. Risk of sparking.
■ Only transport and store fuels in containers approved and identified for this.
- Keep children away from fuels.
- Do not handle and store fuels close to combustible and highly inflammable materials as well as sparks and open flames.
- Go away at least three meters from the fuelling place to start the chain saw.

Vibrations

Hand arm vibration

Front handle: a_hv = 5,65 m/s^2

Rear handle: a_hv = 6,027 m/s^2

Measuring uncertainty K = 1,5 m/s²

The indicated vibration emission level has been measured according to a standardised test method and can be used to compare machines.

It can also be used for an initial estimate of the vibration exposure.

The actual vibration emission level during the use of the machine may differ from that indicated in the operating instructions or indicated by the manufacturer.

This may be caused by the following factors to be minded before and during the use:

– Proper use of the machine
– Correct cutting or machining of material
– Proper condition of the machine for use
– Use of the correct and sharp cutting tool
- Handles and optional anti-vibration handles properly mounted on the machine body

When you feel uncomfortable or notice discoloration of skin on your hands during the use of the machine, stop working immediately. Observe sufficient break times to rest. Failure to have sufficient break times may result in a hand-arm vibration syndrome.

The extent of exposure depending on the type of work or machine use should be estimated and appropriate breaks taken. In this way, the extent of exposure can be considerably reduced over the entire work time. Minimise the risk caused by vibrations. Maintain this machine according to the instructions in the manual. If you intend to use this machine frequently, contact your local authorised dealer and purchase anti-vibration accessories if required. Avoid the use of this machine at temperatures under 10^ C. Create a work schedule in order to minimise vibration exposure.

Work instructions - saw techniques

Additional advices for sawing trunks

■ 9 Never put the trunk for sawing on the ground. Support the trunk in such manner that the cut does not close and the saw chain jams. Use a safe base (e.g. sawhorse). Avoid contact to ground with the guide bar tip or saw chain.
■ Adapt shorter trunks before sawing and clamp them firmly.
■ Avoid cutting of thin bosk and lumber. The chain saw is not suitable for those works.
- Carry out longitudinal cuts with special care as the claw stopper is not used. Avoid saw backstroke by guiding the saw with a small angle.
■ When working at a slope take always the position above or on the side of the trunk or the lying sawing material respectively. Pay attention to rolling trunks.

Notes on how to saw wood under tension

If perches, trees or wood under tension become free of tension by sawing extreme caution is demanded. The sawing material

can react completely uncontrolled and result in heavy injuries or death.

⚠️ Such work may only be carried out by instructed specialists.

11 / 12 / 13 / 14

⚠ For all works set always first of all on the pressure side ① the releasing cut and then the dividing cut ② - otherwise the chain saw can jam or strike back.

- 11 Upper side of wood under tensile stress

1 Place one cut (one third of the diameter of the trunk) from the bottom up.
② Then place a second cut on the same point from top which cuts through the trunk.
12 Underside of wood under tensile stress
1 Place one cut (one third of the diameter of the trunk) from top to bottom.
② Then place a second cut on the same point from bottom which cuts through the trunk.
13 Strong trunks and strong tension
1 Place one cut (one third of the diameter of the trunk) from bottom up.
② Then place a second cut with distance to the first cut from top which cuts through the trunk.

Advices on how to cut off branches

14 Step cut

① Make the first cut from the bottom up (one third of the branch diameter).
② Then, make the second cut from top to bottom opposite to the first cut. This cuts the branch through.
③ To remove the remaining piece from the trunk cut it through from top to bottom close to the trunk.

Advices for cutting down trees

⚠️ Such work may only be carried out by instructed specialists.

■ Pay attention to the length of the guide bar. Only those trees are allowed to be cut which have a trunk diameter which is smaller than the length of the guide bar.
■ 15 Safeguard the dangerous zone (D) before cutting. Make sure that there are no persons or animals in the fall area. Danger to life!
■ 16 The minimum distance to the next work place must be 2.5 tree lengths.
■ 17 Make sure that the working area around the trunk is free of risk to stumble and that you have an escape route (F) which is free of obstacles.
17 Before cutting the tree down decide on the felling direction (C). Before chopping the tree decide on the chopping direction. Consider in this case the balance point

of the treetop, neighbour trees, slope direction, state of health of the tree and the wind direction. On this side the kerf is cut in.

■ Remove interfering branches, scrub and obstacles from the working area at the trunk and make sure that you have a safe standing position.
■ Thoroughly clean the trunk foot – sand, stones and other foreign objects make the saw chain edgeless or may damage it.
- Consider the state of health of the tree – be careful with trunks with damages or deadwood (droughty, rotten or dead wood).

18 Tree felling technique:

⇒ Cut a kerf with the saw of approximately one third of the tree diameter into the trunk. First of all place the horizontal cut and then as secondly a cut from top in an angle of 45^ .
→ Shout the warning "Caution" or "Tree is falling" before starting the fell cut.
→ Now saw on the opposite side of the trunk a horizontal chopping cut. This cut should be placed a bit higher (appr. 4 cm) than the horizontal cut of the kerf.
⇒ By no means cut through the trunk. Appr. 1/10 of the trunk diameter must remain. If the tree starts falling ahead of time pull out the chain saw immediately out of the cut and step back or to the side.
→ Push a key into the horizontal chopping cut in order to make the tree falling.
⇒ Pay attention, when tree starts falling, to perches or twigs falling down.

Assembly

Installing the guide bar and the saw chain

Risk of injury!

Stop the engine and wear protective gloves whenever working on the guide bar and on the saw chain!

20 Place the chain saw on a level surface and release the chain brake. Press the front hand guard (3) against the front handle (4).
21 Remove the cover (13).
22 Place the guide bar.

Put the saw chain over the clutch (17) on the chain wheel (18) 38 and insert it in the circumferential guiding groove of the guide bar.

⚠️ Attend to the correct running direction of the chain links!
When assembling, pay attention that the chain are lying correctly within the guide slot and on the chain wheel.

23 Turn the chain stretching screw (15) anticlockwisely until the chain stretching pin (16) is in its end position.
21 Remount the cover (13) and tighten the nuts (14) hand-tight.

⚠ The chain stretching pin(16) must engage in the provided hole in the guide bar.

Clamping the saw chain as described in section „Clamping the saw chain”

Clamping of saw chain

Risk of injury!

Stop the engine and wear protective gloves whenever working on the guide bar and on the saw chain!

21 Loosen the retaining nuts (14) by max. 1 turn.
24 Slightly lift the guide bar tip and turn the chain stretching screw (15) clock wisely until the correct chain tension is reached.
25 The saw chain is correctly stretched when it can be lifted in the centre of the chain guide by appr. 3 – 4 mm.

Turn the chain stretching screw anti-clockwise when the saw chain is stretched too much.

Check that the chain links are positioned correctly in the guiding groove of the guide bar.

Re-tighten the locking nuts (14).

Check the saw chain tension:

→ before start of work
→ after the first steps
→ during sawing regularly all 10 minutes

Only with a correct clamped saw chain and a sufficient lubrication you can influence the durability.

i Please observe the following:

→ a new saw chain must be rest retched more frequently.
⇒ in case of heating of chain to operating temperature it expands and needs to be reclamped.

⚠️ After finishing the sawing works release tension of saw chain as in case of cooling too high tensions would emerge in the saw chain.

if chain flackers or comes out of the guide clamp it again immediately.

Preparing for commissioning

The chain saw is supplied without saw chain oil and fuel filling.

Fill the saw chain as described under "Chain lubrication" and "Fuelling".

Chain lubrication

Never operate the chain saw without lubrication. Any use without chain saw oil may result in damage of the chain saw and guide bar.

The durability and cutting power of the chain depends on the optimal lubrication. During operation the saw chain is automatically wetted with oil.

Filling up saw chain oil

Stop the engine and wear protective gloves. Avoid eye and skin contact.

2 Put the chain saw on a suitable base and unscrew the oil tank lock (11).

Fill the oil tank with bio-degradable chain saw adhering oil (order no. 400144). For easier filling use a funnel.
⚠ When filling observe that no dirt reaches the oil tank. Screw on the oil tank lock again.

Never use recycled oil or used oil. The guarantee expires when using oil which is not allowed for chain saws.

Checking the chain lubrication

⚠️ Never operate the chain saw without functioning chain lubrication.

Check the function of the automatic chain lubrication by switching on the chain saw and holding it with the pike in direction of a carton or paper on the ground.

⚠ Do not get in contact with the ground with the chain. Keep a safe distance of 20 cm.

If an increasing oil track is caused when checking it the oil automatic works faultless. If there is no oil track despite full oil tank:

33 Clean the oil flow channel (19).

→ If this is not successful please contact the customer service.

27 Adjust the chain lubrication:

See also the instructions under "Maintenance / cleaning: Adjusting the chain lubrication".

Fuelling

Utmost care is required when handling fuel and oil. Do not smoke. Keep away open flames (risk of explosion).

This product is operated by a mixture from regular petrol (unleaded) and two-stroke engine oil.

Petrol: Octane number at least 91 ROZ unleaded

■ Do not fill in leaded petrol, diesel or other non-approved fuels.
■ Do not use petrol having a smaller octance number than 91 ROZ. This may lead to severe engine damages due to increased engine temperatures.
■ If you frequently operate the product at high speeds, you should use petrol with a higher octane number.

The use of unleaded petrol is recommended for environment protection reasons.

Two-stroke engine oil:

acc. to JASO FC or ISO EGD specifications

■ Do only use two-stroke engine oil for air-cooled engines.

Mixing

Ratio of mixture 40:1

Petrol Two-stroke engine oil
1 litre 0,025 litres
2 litres 0,050 litres
5 litres 0,125 litres
10 litres 0,250 litres

■ Measure the oil quantity accurately as a small deviation of it has a large effect on the ratio of mixture in particular for small fuel quantities.
■ Do not change the ratio of mixture. This will lead to more residues of combustion, a higher fuel consumption, a decrease of output or damages to the engine.

⚠️ Mix petrol and oil in the supplied fuel mixing can (36).

1 Fill first petrol up to the mark ↑ petrol Then, fill oil up to the mark ↓ oil. Shake the fuel mixture.

• Fuels have only a limited shelf-life. Outdated fuels and fuel mixtures may result in starting problems. Therefore, mix only that quantity of fuel which you can use.
• Only store fuels in containers approved and identified for this. Keep fuel containers in a dry and safe area.
• Make sure that fuel containers are kept out of the reach for children.
  Make sure to dispose of fuel remainders and liquids used for cleaning according to relevant regulations and in an environmentally compatible manner.

Fuelling the chain saw

• Stop the engine and allow it to cool down.
• Wear protective gloves.
• Avoid eye and skin contact.

• Strictly follow the instructions under "Safe handling with fuels".

• Clean the area around the filler neck. Contamination in the tank may result in malfunction.

• 26 Carefully open the tank cap (9) to allow possible overpressure to relax.
• Shake the container once more before pouring the fuel into the tank.
• Carefully fill the fuel mixture up to the lower edge of the filler neck. Avoid spilling of fuel or oil. Clean the chain saw immediately when you have spilled fuel or oil.

Make sure that no fuel can come into the soil.

1. Carefully close the tank cap after fuelling and check that it does not get loose during operation.
2. Check that there is no leakage on the tank cap and fuel lines. If there are leaks this product may not be started.
3. Clean the tank cap and the area around it. ⚠️ Go away at least three metres from the fuelling place to start the chain saw.

Commissioning

You may not start to operate the machine until you have read these original instructions, observed all the instructions given and installed the machine as described!

■ Check for every use:

• there is no damages at the machine.
• loose fastenings

■ Make sure that the ON/OFF switch, the throttle lock-out switch, the throttle trigger and the chain brake properly work.

Observe the safety instruction in any case.

Chain brake

The chain brake is a protective mechanism that is triggered when the chain saw strikes backwards or automatically by the front hand guard (3). The saw chain stops immediately (< 0,1 sec.).

Checking of chain brake

Check the chain brake's proper function before each work start.

• Start the engine, see "Starting the chain saw".
• Hold the chain saw with both hands and allow the engine to run.
  → 19 Use the back of your hand to press against the front hand guard ○.
  The chain saw must stop immediately.

It is not allowed to use this chain saw without properly working chain brake. Please contact the manufacturer or the customer service point

Before starting the chain saw

19 Apply the chain brake. Push the front hand guard forward. Have a safe standing position.
3 Place the chain saw on the ground in front of you, with the guide bar and chain showing to the left. ⚠️ Chain and guide bar must stand free.

Put the right foot tip in the rear handle (29) and hold the front handle (4) with your left hand.

Starting with cold engine

2 Press "I" of the ON/OFF switch (8).

Pull the choke lever (7) fully out.

The extent of choke lever pulling depends on the outdoor temperature. Colder outdoor temperature: Pull the choke lever fully out. Warmer outdoor temperature: Pull the choke lever halfway out.

3 Grasp the cranking handle and slowly pull the cranking rope until a resistance is felt. Then, pull quickly and firmly. While doing so, press the front handle (4) down.

Do not fully pull out the cranking rope and slowly guide the cranking handle back to make sure that the cranking rope is correctly wound up.

i Repeat this operation until the chain saw starts for the first time. Press in the choke lever and repeat the pulling until the chain saw starts. The engine will idle.

20 Release the chain brake. Push the front hand guard towards the front handle (3) 📋. The chain saw is ready for operation.

Only operate the throttle trigger (6) with the chain brake released. A blocked saw chain may result in damages to the chain drive.

To saw simultaneously operate the throttle lock-out switch (5) and the throttle trigger (6).

If you release the throttle trigger, the saw chain will stop and the engine will idle. If the saw chain runs in spite of non-pressed throttle trigger, you have to adjust the idle speed. (➤ “Maintenance”)

Stopping the engine

2 Release the throttle trigger (6) Press "O" of the ON/OFF switch (8).

Starting with warm engine

Start the chain saw as described under “Starting with cold engine”, but leave the choke lever in its operating position.

Before each maintenance and cleaning work

• Stop the engine.
• wait for stop of chain saw
• Remove the spark plug connector.

- Wear protective gloves in order to avoid injury to the hands.

- Do not carry out maintenance work close to open flames. Risk of fire.

Maintenance and repair work other than those described in this chapter is only allowed to be carried out by service staff.

Use only original parts. Other parts can result in unexpected damages and injuries.

For maintaining and cleaning, removed security devices must unconditionally be mounted properly and proved again.

Maintenance

To guarantee a long and reliable usage of the chain saws carry out the following maintenance works regularly. ➕ Maintenance and cleaning schedule.

Check the chain saw for obvious defects such as:

• loose or damaged saw chain
• loose fastenings
  — wear, especially chain, guide bar and chain wheel
• worn or damaged components
  — leaks from the fuel/oil tank cap or fuel lines
• correctly assembled and faultless covers and protective devices.

Necessary repair works or maintenance works have to be carried out before the usage of the chain saw.

Adjusting the chain lubrication

Stop the engine!

The chain lubrication is factory-set. Depending on the type of wood and working techniques the amount of oil may vary and has to be corrected.

27

Adjust the chain lubrication using the adjusting screw (12) which is located below the product.

Anticlockwise turning small amount of oil (MIN)

Clockwise turning → large amount of oil (MAX)

The chain lubrication is correctly adjusted when the saw chain throws off small amounts of oil during operation.

Saw chain and guide bar

Saw chain and guide bar are exposed to a great extent of wearing. Replace the chain saw and the guide bar without any delay if their proper function is no longer ensured. ➞ "Installing the guide bar and the chain saw".

Sharpening of saw chain

You can only work safely and well with a sharp and clean saw chain. Damaged or incorrectly sharpened saw chains increase the risk of kickbacks.

The saw chain has to be sharpened if

→ only wood dust is thrown out instead of shavings
you have to press the chain saw through the wood during cutting

Inexperienced users: Have the saw chain sharpened by a specialist/service workshop.

If you sharpen the saw chain by yourself, note the values below and use a round file. (Additional accessories are available from specialist shops.)

Saw chain type Oregon 21LPX072X
Round file 3/16" (∅ 4,8 mm)
Depth gauge distance T .025"	(0,65 mm)
Schärfwinkel α	25°
Breast angle β	60°
Planing tooth length a min. 3 mm

19 Firmly clamp the chain saw's guide bar in a vice and block the saw chain. Apply the chain brake
20 To advance the saw chain release the chain brake.
29 Use a round file to file all sharpening angles ( =25^ ).

Do only apply 2-3 strokes with the file.

The sharpening angles must be identical. Unequal sharpening angles result in an erratic chain run or chain breaking.

30 While sharpening keep the file at an angle of 10^ to the guide bar.
31 Using the round file and the correct sharpening angle the correct breast angle will result.
32 The planing tooth lengths (a) must be equal. Unequal lengths may lead to erratic chain run or chain breaking.
32 Once all sharpening angles are filed your saw chain is sharp, but it will possibly not cut. There must be always a depth gauge distance (T = distance between depth gauge and cutting edge).

i Use a flat file to file the depth gauge distance.

⚠ Be sure to chamfer the leading edge of your depth limiter with a file. The original shape of the cutting link must be preserved.

① Only remove a little amount of material when sharpening.

You can also sharpen your saw chain yourself by using our electric sharpener KSG 220 A (article-no.: 302360).

Cleaning of guide bar

33 / 34

• Check and clean the oil outlets (A) of the guide bar and the guiding groove (B) on a regular basis.
  ■ Remove any burr using a flat file.
• Turn round the guide bar after each chain exchange / sharpening to avoid single-side wearing.

i Immediately replace a damaged guide bar.

Chain wheel

The demand of the chain wheel is particularly great. Check regularly the teeth of the chain wheel for wear or damages.

38 Clean the chain wheel (18) and the guide bar fixing device using a brush.

A worn or damaged chain wheel reduces the durability of the saw chain and should therefore immediately be exchanged by the customer service.

Cleaning the air filter

Clean the air filter from dust and dirt on a regular basis to prevent

• starting problems,
• loss of output,
• too high fuel consumption.

Clean the air filter every 8 operating hours, or more frequently in dusty environments.

35

1. Open the air filter cover (21).
2. Remove the air filter (22).
3. Cover the intake opening with a clean cloth to prevent dirt from coming into the carburettor.
4. Pull apart the both parts of the air filter.
5. Wash the air filter in a luke warm soapy solution.

Do not puff/blow out dirt particles, otherwise there is a risk of eye injury.

1. Allow the air filter to dry well and reinsert it.

① Damaged air filters must be replaced without delay.

Checking / Replacing the fuel filter

28

The chain saw is equipped with a fuel filter. Check it regularly and clean or replace it if required.

For this open the tank cap (9) and pull out the fuel filter (10).

If the filter is only slightly contaminated, carefully pull it from the oil line and clean it using petroleum ether.

① If it shows a great extent of contamination, replace the fuel filter.

Checking / Replacing the spark plug

• Do not touch the spark plug or the spark plug connector while the engine is running. High voltage!
• Risk of burning on the hot engine.
• Wear protective gloves.

Check the spark plug and the spark gap on a regular basis.

For this proceed as follows:

35 Open the air filter cover (21).
36 Pull the spark plug connector (23) from the spark plug (24). Remove the spark plug using the supplied wrench (35).
37 The spark gap must be 0.6 to 0.7 mm. Clean the spark plug when it is contaminated. Install the spark plug in reverse order.

Do not overtighten the spark plug.

Replace the spark plug:

• every 100 hours or once in a year (whichever case comes first)
• when the insulating body is damaged,
• when the electrodes show excessive erosion,
• when the electrodes show excessive dirt or oil.

Use the following spark plug type:

L8RTF/NHSP LD, BPMR7A/NGK, BM6ATorch, L7T/NHSP LD

Comparable with reference types:

BOSCH WSR6F, OREGON OPR15Y

Checking the ignition spark

1. Remove the spark plug (24).
2. Firmly connect the spark plug connector (23).
3. Use an insulated pair of tongs to press the spark plug against the engine body (away from the spark plug hole).
4. Put the toggle switch to its top position.
5. Pull the cranking rope.

If there is no spark visible between the electrodes, the spark plug may be defective.

Chain catcher

1

The chain catcher (30) prevents a broken or jumped off saw chain from hitting the operator during sawing.

Check the chain catcher on a regular basis and replace it if it is damaged.

Silencer / exhaust outlet

1

• Check the tight seat of the screws on the silencer (25) on a regular basis
  → If they are loose, tighten them hand-tight with the engine in cold condition.

!

Do not retighten the silencer screws when the engine is hot.

i

Clean the exhaust outlet on a regular basis

Adjusting the carburetor (idle speed)

The carburetor is factory-set to the correct idle speed so that the correct fuel-air mixture is fed to the engine.

!

An incorrect carburetor adjustment results in severe engine damages. Do not continue working with the chain saw in such a condition.

In the cases below the carburetor (idle speed) has to be corrected:

• Speed too high (saw chain continues to move in idle speed)
• Erratic running or lack of acceleration (idle speed too low)
• Adjustment to weather conditions and temperatures

Contact a specialist workshop and have the carburetor adjustment done.

Cleaning

Clean the chain saw thoroughly after each application so that the faultless function is kept.

→ Clean the case with a soft brush or a dry cloth.
⚠️ Water, solvents and polishing agents shall not be applied.
→ 38 Make sure that the vent slots (32) of the cover and the engine's cooling fins (33) for engine cooling are free and clean (risk of overheating).

⇒ If heavily contaminated, clean the chain saw using a commercial chain cleaner.
→ 33 Clean the oil flow canal (19) with a clean cloth or a brush.
→ ➞ 38 Clean the brake strap (20) at the cover (13) using a brush.

Transport

Before each transport:

• switch off device
• wait for stop of chain saw
• attach the scabbard on the guide bar

- 10 Carry the product with the front handle. The guide bar shall show to the rear side.

- When transporting the product within a car put it in the boot or on a separate loading area. Secure the chain saw against tipping over, damages and fuel spillage.

Storage

■ Store unused equipment in a dry, locked place out of the reach of children.
■ Always re-attach the guide bar guard (chain guard) when storing the unit to prevent any injury by accidental contact.
■ To extend the service life of the saw and guarantee smooth operation, before storing for a longer period:

→ Operate the engine until the carburetor is empty.
→ thoroughly clean the device.
→ Empty the fuel tank completely.
→ Empty the oil tank completely.
→ ✿ Dispose of remainders of fuel/saw chain oil according to relevant regulations (environmentally compatible).

Tipp:

Some chain oils tend to encrustations after a longer period. For this reason the oil system should be flushed before a longer storing with a commercial chain saw cleaner. Fill the cleaner up to the middle (appr. 50 ml) into the empty oil tank. Close the tank. Operate the chain saw without installed guide bar and chain until all of the cleaner came out of the oil outlet of the chain saw.

⇒ After cleaning, immerse the saw chain in an oil bath for a short time and wrap it then with oiled paper.

Guarantee

Please observe the enclosed terms of guarantee.

Maintenance and cleaning schedule

Maintenance work		Before each use	After each use	Weekly	Monthly	Yearly	Every 100 hours	If required/damaged	At decommissioning
Chain brake	Functional test	★
	Functional test Servicing							★
Guide bar	Check		★						★
	Clean/turn round		★						★
	Replace							★
Chain wheel Check				★
	Have it replaced							★
Saw chain tension Check		★
Saw chain Check		★
	Have it sharpened							★
	Replace							★
Throttle trigger / throttle lock-out switch / ON/OFF switch	Functional test	★
	Have it replaced							★
Cranking rope / return spring Functional test		★
		Replace						★
Chain lubrication Check			★
Oil tank Clean						★			★
Fuel and oil tank caps	Check	★
	Replace							★
Fuel tank	Clean					★			★
Fuel filter	Clean					★
	Replace							★
Air filter Clean			★						★
		Replace						★
Spark plug	Check				★				★
	Replace					★	★	★
Silencer	Clean			★					★
	Replace							★
Carburetor at idling	Check (chain must not move)	★							★
	Have this adjusted							★
Complete machine	Check	★							★
	Clean		★						★
Chain catcher	Check	★							★
	Replace							★
Claw cover	Check	★							★
	Replace							★
Safety label	Replace							★

Possible faults

Before each fault clearance

• switch off device
• wait for stop of chain saw
• apply the chain brake
  – pull off the spark plug connector
• wear gloves

After each fault clearance, put into operation and recheck all security installations.

Fault Possible cause Removal
Motor does not start	Incorrect starting sequenceAir filter contaminatedFuel filter fouledSpark plug fouledNo fuel supplyFault in the fuel lineCranking mechanism defectiveEngine flooded.Carburettor defective	Observe the correct starting sequenceClean or replace the air filterClean or replace the fuel filterClean or replace the spark plugFill the fuel tank. Bring the choke to the correct starting position. Clean or replace the fuel filterCheck the fuel line for kinks or damagesReplace the cranking rope: Replace the recuperating springScrew off, clean and dry the spark plug.Then pull the cranking rope several times and reinstall the spark plug.Contact the customer service
Engine starts and is stalled immediately	Incorrect idle adjustment	Contact the customer service
Chain saw does not work with full power	Machine overloaded.Chain edgeless/damagedAir filter contaminatedCarburretor incorrectly adjustedSilencer blocked	Do not excessively press during sawingChain must be regrinded or exchangedClean or replace the air filterContact the customer serviceClean the outlet of the silencer
Chain saw works with interruptions (sputters)	Carburretor incorrectly adjustedSpark plug fouled	Contact the customer serviceClean or replace the spark plug. Check the spark plug connector
Chain does not run	Chain brake applied	Release chain brake
Chain saw picks, vibrates or does not saw correctly	Chain edgeless/damagedChain tensionChain not assembled correctly (teeth face to wrong direction)	Chain must be regrinded or exchangedCheck and adjust chain tensionAssemble chain again
Saw chain is hot	no oil in the tankoil flow canal blockedchain tension too highChain edgelessIncorrect chain lubrication	Refill oilClean oil flow canalAdjust chain tensionChain must be regrinded or exchangedAdjust the chain lubrication
no saw chain lubrication	no oil in the tankoil flow canal blockedIncorrect chain lubrication	Refill oilClean oil flow canalAdjust the chain lubrication
Smoke Incorrect fuel mixture	Carburretor incorrectly adjusted	Use two-stroke oil, ratio of mixture 40:1Contact the customer service

Technical Data

Type BKS 45-2
Model	BKS
Year of construction see last page
Max. engine output at a certain speed	1.8 kW
Cubic capacity 45.1 m3
No-load speed n0 2700 – 3400 min	-1
Max. engine speed with cutting tool 10500 min	-1 ± 500 min -1
Chain wheel (number of teeth/pitch)	7/ .325"
Cutting length 430 mm
Max. saw chain speed 21.2 m/s
Ignition system electronic ignition
Spark plug	BPMR7A/NGK or equivalent (● "Maintenance")
Spark gap	0.6 – 0.7 mm
Fuel tank capacity	0.5 l
Fuel consumption at max. output (acc. to ISO 7293)	1.030 kg/h
Specific fuel consumption at max. output (acc. to ISO 7293)	570 g/kWh
Ratio of mixture (fuel/two-stroke oil)	40:1
Chain oil tank capacity	0.24 l
Oil pump	automatic
Guide bar (sword)	BE18-72-5810P (Kangxin)
Saw chain type	21LPX072X (Oregon)
Pitch / drive link thickness	.325" (8,255 mm)/ .058" (1,5 mm)
Hand arm vibration front handle	5.65 m/s 2 (Vibration emission acc. to ISO 22867)
Hand arm vibration rear handle	6.027 m/s 2 (Vibration emission acc. to ISO 22867)
Measuring uncertainty K	1.5 m/s2
Weight (tank empty, without guide bar and chain)	approx. 5.6 kg
Sound levels LPA at the workplace	102.7 dB (A) (according to ISO 22868)
Measuring uncertainty KPA	2.5 dB (A)
Measured sound power level LWA	110.07 dB (A) (according to 2000/14/EG)
Guaranteed sound power level LWA	113 dB (A) (according to 2000/14/EG)
Measuring uncertainty KWA	2.5 dB (A)

Description of device / spare parts

Pos.	Order-No.	Denomination
1	364808	Guide bar (sword)
2	364582	Saw chain (Oregon 21LPX072X)
3	-	Front hand guard (chain brake)
4	364568	Front handle
5	-	Throttle lock-out switch
6	-	Throttle trigger
7	-	Choke lever
8	-	On/Off switch
9	364503	Fuel tank cap
10	364504	Fuel filter
11	364505	Oil tank cap for chain lubrication
12	-	Chain lubrication adjusting screw
13	-	Cover
14	364507	Fixing nut
15	-	Chain clamping screw
16	-	Chain stretching pin
17	-	Clutch
18	-	Chain wheel
19	-	Oil flow canal
20	-	Brake strap

Pos.	Order-No.	Denomination
21	364807	Air filter cover
22	364811	Air filter
23	-	Spark plug connector
24	364551	Spark plug
25	364805	Silencer
26	364809	Cover with cranking device
27	364810	Cranking handle
28	364812	upper cover
29	-	rear handle
30	364813	Chain catcher
31	364515	Claw stopper
32	-	Ventilation apertures
33	-	Cooling fins
34	362921	Guide bar cover (scabbard)
35	364518	Installation wrench
36	364520	Fuel mixing can
37	364804	Safety label
38	400144	Saw chain oil 1 l
	364806	Front hand guard cpl. (Pos. 3, 13)

Table des matières

Vibrations main-bras

Inden hver transport

Kedjebroms: ← lossad

Close-up of a pile of freshly cut tree logs, showing natural grain patterns and root veins (no text or symbols)

D Baujahr
GB Year of construction
F Année de construction
DK Produktionsår
E Año de fabricación
FIN Valmistusvuosi
Anno di costruzione
N Byggeår
NL Bouvwjaar
s Tillverkningsår

ATIKA GmbH

Josef-Drexler-Str. 8, 89331 Burgau • Germany

Tel.: [phone] / 41 47 08 - 0

Fax: [phone] / 41 47 08 - 10

E-mail: [e-mail] • Internet: www.atika.de