LAWN STAR LSPS 5850 Manuale utente

PROFESSIONAL

PETROL CHAIN SAW

OPERATING INSTRUCTIONS

MODEL: LSPS 5850

Thank you for purchasing the Lawn Star Petrol Chain Saw which is one of the finest and

most advanced chain saws today’s technology can produce. Before you begin using it,

please read this manual carefully and familiarise yourself with the control and the proper

use of this product to ensure you get the best possible performance from it.

IMPORTANT INSTRUCTIONS FOR YOUR PERSONAL SAFETY

Before using the chain saw, read the operating instructions and act accordingly.

ATTENTION: You run the risk of injury if you use the chain saw incorrectly. It is

imperative that you read these Operating Instructions and follow the instructions given.

A) General safety instructions

Do not allow children less than 18 years of age, nor anyone who is not familiar with

these instructions to use the petrol chain saw.

The chain saw should be used by trained and experienced persons only.

Keep the operating instructions for future reference.

Do not operate this equipment when tired, ill, or under the influence of alcohol, drugs

or medication.

Only operate the chain saw if physically fit and alert.

Obey all safety instructions and warnings.

B) Instructions on the proper use of personal protective clothing

Working with a chain saw requires special measures with regard to protective

equipment and clothing suitable for protecting your head, hands, feet, legs, eyes and

ears.

Keep body parts away from the chain.

Wear close fitting clothing which cannot get caught in moving parts.

Always wear an approved safety helmet when felling trees and removing branches.

Always wear safety goggles and/or a face guard.

Always wear suitable heavy-duty protective gloves.

Wear ear protection to avoid damage to your hearing.

Wear safety clothing including sturdy, non-slip footwear.

Wear leg guards.

C) Instructions on the safe use of the chain saw

ATTENTION: Read the operating instructions carefully and familiarise yourself in the

correct use of the chain saw before using it for the first time.

Before storage allow the engine to cool. When not in use, store the chain saw in a

dry and locked place, out of reach of children.

Use only genuine Lawn Star (Pty) Ltd. replacement parts when servicing or repairing

the unit. These parts are available from your supplying dealer or service agent.

Repairs may only be performed by authorised service agents.

Avoid dangerous environments. Do not use the unit in poor light or in damp or wet

locations. Do not use in the rain. Do not over-reach. Ensure good footing and balance

are maintained.

Inspect your petrol chain saw before each operation. Pay special attention to the

chain-bar and chain. If any part is damaged or worn, repair or replace before

operation.

Always hold the chain saw firmly with both hands while working with it.

No other person may be within the working range of the chain saw.

When not in use put the chain saw down in such a manner that there is no risk of

injury.

Switch the device off, wait for the chain to come to a complete standstill and

disconnect the spark plug before setting, servicing, cleaning, transportation or

storage.

Always use the chain cover when transporting the chain saw.

Hold the chain saw firmly when starting. The chain and bar must be free.

Before starting work ensure that you are standing firmly.

Never cut with the tip of the bar –the chain saw may recoil (“kick-back”)

Do not use the chain saw near combustible gases or dust –danger of explosion.

Always ensure all handles and guards are fitted when using the chain saw. Ensure all

screws and nuts are properly tightened before use.

Only operate this chain saw once correctly and fully assembled.

Switch the chain saw off immediately if you notice any changes in the machine.

Always have a first-aid kit at hand in case of accidents.

If the chain comes into contact with soil, stones, nails or other foreign objects, stop

the chain saw immediately and check the chain as well as the bar.

Never leave the chain saw unsupervised.

Ensure that no chain oil penetrates into the soil or sewage. Always place the chain

saw on something that will absorb any oil dripping from the bar or chain.

Stop the engine and disconnect the spark plug if the chain saw becomes blocked.

Never remove any of its components and never use a damaged or incomplete

machine. Never modify any of the machine components.

Do not use your petrol chain saw for any jobs other than those for which it was

intended.

WARNING: Petrol and its vapours are highly flammable. Always stop the engine

before refuelling. Do not smoke or light any flames while refuelling. Wipe off any fuel

that may have spilled. Refuel in a well ventilated area and never in closed

environments. Start the engine away from the place where it was refuelled. Ensure

the tank cap is tightened properly. Return the chain saw to its normal operating

position before starting.

CAUTION: Exhaust fumes are toxic and asphyxiating. Inhalation may be lethal. Do

not start the engine in closed or poorly ventilated environments.

If the chain becomes jammed or blocked by obstacles, switch the engine off

immediately and visually inspect the chain saw for damage. Note, if the chain saw is

damaged, repairs and servicing must only be performed by authorised dealers and

service agents.

D) Warning: Danger of recoil (“kickback”)

WARNING: While the engine is running, kickback may occur when the nose or tip of

the guide bar touches an object, or when the wood closes in and pinches the saw

chain in the cut. Top contact in some cases may cause a lightning fast reverse

reaction, kicking the guide bar up and back towards the operator. Pinching the saw

chain along the top of the guide bar may push the guide bar rapidly back towards the

operator. Either of these reactions may cause the operator to lose control of the saw

which could result in the chain saw being flung upwards at high speed towards the

person holding the chain saw and causing serious personal injury.

Do not rely exclusively on the safety devices built into your saw. As a chain saw user

you should take several steps to keep cutting jobs free from accident or injury:

With a basic understanding of kickback you can reduce or eliminate the element of

surprise. Sudden surprise contributes to accidents.

Keep a good grip on the saw with both hands, the right hand on the rear handle, and

the left hand on the front handle, when the engine is running. Use a firm grip with

thumbs and fingers encircling the chain saw handles. A firm grip will help you reduce

kickback and maintain control of the saw.

Make certain that the area in which you are cutting is free from obstructions. Do not

let the nose of the guide bar contact a log, branch, or any other obstruction which

could be hit while you are operating the saw.

Do not overreach or cut above shoulder height.

Follow manufacturers sharpening and maintenance instructions for saw chain.

Only use replacement bars and chains specified by the manufacturer or the

equivalent.

If possible, use a log stand for cutting loose logs.

Always keep aware of the bar tip relative to other objects.

Cut at high engine speeds. Never start the machine while the chain rests on an

object.

Piercing cuts with the bar tip may only be performed by trained and experienced

operators.

E) Instructions on safe working techniques

Always maintain a normal body posture when operating the device. Always keep your

balance.

Do not work with your body bent forwards.

Do not work on ladders, scaffolding, walls or trees.

Do not use the chain saw above shoulder height.

Do not cut plastic or other material. This chain saw is only intended for cutting wood.

Ensure that the wood cannot twist while it is being cut.

Never climb in a tree to cut branches.

Watch out for splintering wood. While you are sawing you may be injured by flying

wood chips.

Do not use the chain saw to lever or move the wood.

Only cut with the lower section of the saw. The saw will be repulsed towards you if

you try and cut with the upper section of the saw.

Ensure that the wood is free from of stones, nails and other foreign objects.

First-time users must obtain practical training in the correct use of the chain saw and

the required safety equipment from an experienced operator.

Keep the running chain saw from touching the ground or wire fences. Do not cut thin

wood or timber that is already sawn into small pieces.

Do not use the chainsaw as a lever for lifting or moving objects.

DO NOT fasten tools or accessories to the chainsaw that are not specified by the

chainsaw manufacturer.

ATTENTION: SAFETY FEATURES

Safety features are designed to protect you against injuries and must not be altered or

circumvented.

Warning Symbols

Read operating instructions

before operating this machine

Warning: Kick-back

Wear heavy-duty safety

gloves

Wear head, eye and ear

protection

Keep bystanders away from

chain saw when it is in use

Do not use in rain

Hold the chain saw with

both hands when operating.

Avoid running the engine indoors.

The exhaust gases contain

harmful carbon monoxide.

The following symbols appear on the chain saw. For safe operation and

maintenance, please know what the symbols mean:

Fuel tank cap

Chain oil tank cap

On/Off switch

Choke

Indication regarding the chain oil adjuster nut:

“MIN” direction-the oil flow decrease

“MAX” direction-the oil flow increase

Carburettor adjustment symbols:

The position of H-needle

The position of L-needle

The position of idle adjustment screw

Chain Brake Symbol:

Arrows show which direction to engage or disengage chain

brake. Push the guard all the way forward to engage, and

pull back to disengage.

STOP

PULL

CHAIN OIL

MIN

MAX

ASSEMBLY OF CHAIN SAW

CAUTION: The saw chain has very sharp edges. Always use safety gloves when assembling

the chain.

Your chain saw package contains the following items as illustrated in figure 1.

Assemble the guide bar and the saw chain on the power unit as follows:

1. Ensure the spark plug wire is disconnected and keep it away from spark plug.

2. Place the chain saw on a stable surface.

3. Pull the guard towards the front handle to check that the chain brake is not on (Fig.2).

4. Loosen the nuts (Fig.3a) and remove the chain cover (Fig.3b).

5. Install the included claw to the power unit (Fig.4) if it is not pre-fitted.

6. Gear the chain to the sprocket (Fig.5) and, while fitting the saw chain around the guide bar,

mount the guide bar to the power unit (Fig.6). NOTE: Pay attention to the correct direction of

the saw chain. The cutting teeth on the upper side of the bar must point in the forward

direction (Fig.7)

7. Adjust the position of chain tensioner screw on the chain cover to the lower hole of guide

bar (Fig.3b) If necessary, adjust the tensioner screw until the tensioner bolt is seated in the

lower hole in the bar.

8. Fit the chain cover to the power unit and fasten the nuts (Fig.3a) to finger tightness.

9. Check that all chain links are seated correctly in the bar’s groove and that the chain is fitted

around the driving sprocket correctly.

10. While holding up the chain bar, adjust the chain tension by turning the tensioner screw until

the chain links just touch the bottom side of the bar rail (Fig.8). The chain should be

tensioned such that it can be lifted about 3 mm in the middle of the bar (Fig.8).

11. Tighten the chain cover nuts securely (12-15N.m). Check the chain for smooth rotation and

proper tension while moving it by hand.

12. If necessary, readjust the tension of the chain by first loosening the chain cover nuts slightly,

then again adjusting the chain tension by turning the tensioner screw. Securely retighten the

chain cover nuts.

NOTE:

A new chain will expand its length in the beginning of use. Check and readjust the tension

frequently as a loose chain can easily derail or cause rapid wear of itself and the guide bar.

The chain tension has a significant effect on the life of the chain saw, and must therefore be

checked regularly. When the chain warms up to operating temperature it will expand a little and

might need to be re-tensioned.

1. Engine

2. Bar protector

3. Chain bar

4. Saw chain

5. Chain file

6. Universal tool

7. Screwdriver for carburettor

adjustment

Figure 1

Sprocket

1. Loosen

2. Tighten

Figure 8

Figure 5

Figure 6

Figure 7

Figure 3b

Tensioner

bolt

Lower

hole

Chain

cover

Figure 4

claw

Chain

catch

bolt

Chain

brake OFF

(operating

position)

Chain

brake ON

Guard

Figure 2

Oiling

port

Figure 9

Bar

groove

Oiling

port

Sprocket

Grease

port

Nuts

Chain

cover

Figure 3a

Tensioner screw

3 mm

clearance

FUELLING

This product is equipped with a 2-stroke engine which requires 2-stroke lubricating oil to be

pre-mixed with petrol. Mix both thoroughly (as per fuel-mix ratio) in a separate container.

Always prepare the fuel-mixture and refuel the chainsaw outside in a well ventilated

environment.

Use Lawn Star high performance 2-stroke oil (stock code 90-20000) and lead-free petrol

(Octane 95).

Oil/Fuel mix ratio for normal 2-stroke engine oil - 1:25 (4%) e.g. 40 ml of oil per 1 litre of

petrol

Always stop the engine before refuelling. Do not smoke or light any flames while refuelling.

Wipe off any fuel that may have spilled. Start the engine away from the place where it was

refuelled. Ensure the tank cap is tightened properly. Return chainsaw to its normal operating

position before starting.

CHAIN OIL

The chain saw must never be operated without chain oil as this will cause damage to the

chain, bar, and engine. No claims under warranty can be accepted if damage occurs due to

the chain saw being operated without chain oil.

Use Lawn Star chain lube (stock code 90-30000). Alternatively motor oil grade SAE 10W-30

can be used.

NOTE: Do not use waste or recycled oil that can cause damage to the oil pump.

Fill approximately 260ml oil into the tank using a funnel and replace the cap securely.

Remove the chain oil from the oil tank if the chain saw is not used for a long period.

The oil tank should be emptied before the chain saw is transported.

After use, lay the chain saw horizontally on an absorbent surface.

BEFORE USING THE CHAINSAW

Before proceeding to your job, read “IMPORTANT INSTRUCTIONS FOR YOUR

PERSONAL SAFETY” section.

Always follow the safety procedures and guidelines.

Check chain saw for damage before starting work.

Ensure that the chain tension is correct. If the chain is too loose, it may come off during use

and lead to injuries. The chain must be replaced immediately if it is damaged. The cutting

teeth must be at least 4 mm long.

Check the sharpness of the chain every time before using the chain saw. Sharpening a

chain requires experience and specialised knowledge, therefore it is recommended that

sharpening be carried out by a specialised workshop, or a new chain be used.

It is recommended to first practice sawing on smaller easier-to-cut logs. This helps to get

accustomed to the chainsaw.

SAFETY DEVICES ON THE CHAIN SAW

CHAIN BRAKE

This machine is equipped with a mechanical chain brake. In the event of kickback, the chain

brake guard (Fig.10-No.1) will be activated by the back of the operators hand and saw chain

rotation will be stopped. The engine will continue to run until switched off.

Immediately release the throttle lever as soon as the chain brake is activated.

Switch the engine off as soon as possible if the chain brake is engaged to prevent the clutch

from overheating.

The brake will only be activated if operating the chain saw correctly.

Always insure that the chain brake guard is locked into the operating position (Fig.2)

before starting the chain saw.

CAUTION: The engine must be switched off before the chain brake is released.

To release brake, pull up the front guard toward the front handle till “click” sound is heard.

Check the chain brake operation before each usage by running the saw at full throttle for 1-2

seconds and pushing the front hand guard forward. The chain should stop immediately with

the engine at full speed. If the chain is slow to stop or does not stop, have the brake band

and clutch drum replaced or serviced before using the chain saw.

It is extremely important that the chain brake be checked for proper operation before each

use and that the chain is sharp. Removal of the safety devices, inadequate maintenance, or

incorrect replacement of the bar or chain may increase the risk of serious personal injury due

to kickback.

CHAIN CATCH BOLT

The chain saw is fitted with a chain catch bolt (Fig.4). Should the chain break when the saw is in

use, the chain bolt will catch the loose chain end and thus prevent injury to the operator’s hand.

Key:

1. Brake guard

2. Front handle

3. Pull starter

4. Air filter knob

5. Air filter cover

6. Choke knob

7. Throttle interlock

8. Rear handle

9. Throttle trigger

10.Primer bulb

11.On/Off switch

12.Fuel cap

13.Chain oil cap

14.Saw chain

15.Guide bar

16.Universal tool

Figure 10

OPERATING INSTRUCTIONS

BEFORE STARTING ENGINE

Check the working area, the wood to be cut and cutting direction. If there is an obstacle,

remove it.

Ensure you have a clear working area, secure footing and a planned retreat path from falling

timber

Inspect the machine for worn, loose, or damaged parts. Never operate the machine that is

damaged, improperly adjusted, or is not completely and securely assembled.

WHEN STARTING THE ENGINE

Ensure the saw chain is not in contact with anything.

Always hold the machine firmly with both hands when the engine is running. Use a firm grip

with thumb and fingers encircling the handles.

Keep all parts of your body away from the machine when the engine is running.

OPERATION

Keep the handles dry, clean and free of oil or fuel mixture.

Never touch the muffler, spark plug or other metallic parts of the engine while the engine is

on or immediately after stopping the engine. Doing so could result in serious burns or

electrical shock.

Use extreme caution when cutting small size brush and saplings because slender material

may catch the saw chain and be whipped toward you or pull you off balance.

When cutting a limb that is under tension, be alert for spring back so that you will not be

struck when the tension in the wood fibres is released.

Check the tree for dead branches that could fall during the felling operation.

Always shut off the engine before setting the chain saw down.

GENERAL INSTRUCTIONS ON WORKING WITH A CHAIN SAW

WARNING: Always ensure your foothold. Do not use an unstable foothold, such as a ladder

or log.

Be alert to the rolling over of a cut log.

Stand on the uphill side of a cut log when working on a slope.

Do not force the chain saw when cutting wood. Apply only light pressure while running the

engine at full throttle. If the chain is sharp, it will cut through the wood with ease.

Never try to continue cutting with a blunt chain. Always have a replacement chain at hand.

When the saw chain is caught in a cut, do not attempt to pull it out by force, but use a wedge

or a lever to open the cut.

WARNING: Do not overreach.

WARNING: Do not cut above shoulder height.

WARNING: Always use your both hands to grip the saw.

Take regular breaks.

After use always place the chain saw horizontally to avoid oil dripping from the chain oil

reservoir.

Always use the chain cover when transporting the chain saw.

Prevent the chain from contacting soil.

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