1
CHAINSAW
BRUZCS4210
OPERATOR’S MANUAL
2
TABLE OF CONTENTS
This manual shows rules of safe operation, proper use, servicing, and maintenance of your CS4210 chain saw. Follow
these instructions in order to maintain good operating condition and a long service life. Misuse of the chain saw can
cause serious bodily injury.
It is important for you to understand all safety precautions correctly before using your CS4210 chain saw. This chain
saw is designed for cutting wood or wood products. Do not cut solid metal, sheet metal, plastic or any non-wood
materials. If there is any clause in this manual that is hard to understand, please contact your Bushranger® dealer.
INTRODUCTION
Safety Markings and Symbols
GENERAL PRECAUTIONS OWNERS MANUAL
• Read the operator’s manual for your chain saw carefully.
• Be thoroughly familiar with the chain saw’s controls and how to use the chain saw properly
• Failure to follow instructions could lead to personal injury.
• If you have any questions or troubles, please contact your Bushranger™ dealer.
Safety Rules & Precautions
Personal Equipment
Fuel
Starting Engine
Transportation
Kickback Safety
Repetitive Stress Injuries
Maintenance
Service Guide / Trouble Shooting
Maintenance Of Carburettor / Air Filter
General Saw Maintenance
Storage
17
18 - 19
Using The Product
Installing Guide Bar And Saw Chain
Starting / Stopping The Engine
Break / Lubricant
Product Use Explanation
10
11 - 12
12 - 13
14 - 16
Warranty
Specifications
Warranty
24
03 - 04
04
04 - 05
20 - 22
23
05
05 - 06
06
Description
08 - 09
Parts Location
24
3
INTRODUCTION
CONTENTS
DECALS AND SYMBOLS
Symbol form/shape
Symbol description/application
Symbol form/shape
Symbol description/application
Carefully read the operator’s
Manual
Petrol and oil mixture
This symbol accompanied by the
words WARNING and DANGER
Calls attentions to an act or a
Condition which can lead to
Serious personal injury or death.
Chain oil fill / oil pump
Circle and slash symbol means
Whatever is shown is prohibited.
Chain oiler adjustment
“-”direction-the oil flow decrease
“
+”direction-the oil flow decrease
CAUTION indicates a potentially
hazardous situation, if not
avoided, may result in minor or
moderate injury.
Carburettor adjustment
-Low speed mixture
Carburettor adjustment
-High speed mixture
Wear eyes, ears and head
protection
Carburettor adjustment
-Idle speed mixture
Warning!
Kickback may occur!
Recommended maximum speed
Emergency stop
Guaranteed sound power level
Chain brake operation
This enclosed message provides
tips for use, care and
maintenance of the unit.
This manual shows rules of safe operation, proper use,
servicing, and maintenance of your chain saw.
Follow these instructions in order to maintain good
operating condition and a long service life. Misuse of
the chain saw can cause serious bodily injury.
It is important for you to understand all safety
precautions correctly before using your chain saw. This
chain saw is designed for cutting wood or wood
products. Do not cut solid metal, sheet metal, plastic or
any non-wood materials.
If there is any clause in this Manual that is hard to be
understood, please contact your dealer.
INTRODUCTION ……………………………………………2
DECALS AND SYMBOLS …………………………………2
RULES FOR SAFE OPERATION …………………………3
DESCRIPTION ………………………………………………8
ASSEMBLY …………………………………………………. 10
OPERATION ……………………………...…………………10
CORRECT USE OF CHAIN BRAKE …….……………….12
CUTTING INSTRUCTION ……………………………….…13
SERVICE MAINTENANCE GUIDE ……..…………………17
TROUBLE SHOOTING ….……….…………………………17
SERVICE ………………………….…………………………18
SAW CHAIN MAINTENANCE ……………..………………20
STORAGE... ……………………………………………… ….21
SPECIFICATIONS ………………………...…………………22
NOTE
2
2
3
8
10
10
13
14
17
17
18
19
21
22
22
PHYSICAL CONDITION
• Stay alert, watch what you are doing and use common sense when operating a chainsaw. Do not use a chainsaw
while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating
chainsaws may result in serious personal injury
• You should be in good physical and mental health in order to handle your chain saw safely. Errors in judgement or
execution can be serious or fatal.
• If you have any physical condition which strenuous work could worsen, check with your physician before using a
chain saw.
• Do not operate when ill or fatigued, or under the influence of any substance or medication which could affect your
vision, dexterity or judgement.
saw carefully.
controls and how to use the chain saw
properly.
personal injury.
please contact your Bushranger™ dealer.
PHYSICAL CONDITION
• Do not operate a chain saw when you are
fatigued or under the inuence of alcohol
or drugs.
• You should be in good physical and mental
health in order to handle your chain saw
safely. Errors in judgement or execution
can be serious or fatal.
• If you have any physical condition which
strenuous work could worsen, check with
your physician before using a chain saw.
• Do not operate when ill or fatigued, or
under the inuence of any substance or
medication which could affect your vision,
dexterity or judgement.
RULES FOR SAFE OPERATION
1. GENERAL PRECAUTIONS
OP ERATOR’S MANUAL PHYSICAL CONDITION
• Read the operator’s manual for your chain saw
carefully.
Be thoroughly familiar with the chain saw’s controls
and how to use the chain saw properly.
Failure to follow instructions could lead to personal
injury.
• If you have any questions or troubles, please contact
your dealer.
• Do not operate a chain saw when you are fatigued or
under the influence of alcohol or drugs.
• You should be in good physical and mental health in
order to handle your chain saw safely. Errors in
judgement or execution can be serious or fatal.
If you have any physical condition which strenuous
work could worsen, check with your physician before
using a chain saw.
Do not operate when ill or fatigued, or under the
influence of any substance or medication which could
affect your vision, dexterity or judgement.
PERSONAL EQUIPMENT
• Always wear approved goggles to protect your eyes. Wood chips, dust, snapping branches and other debris can be
tossed by the cutting chain into the operator’s facial area.
• Goggles may also offer limited protection in the event of the cutting chain hitting the operator in the eye area. If
conditions warrant that a ventilate face shield be worn, goggles must be worn underneath it.
• We recommend wearing hearing protection at all times. If not followed, hearing loss can occur. You should reduce the
risk of hearing damage by wearing either “headset” type protectors or ear plugs that comply with Australian safety
standards.
CAUTION
• Stuffing ears with cotton is not recommended.
• All persons who make part of their living using
chain saws should be tested periodically for hearing
deterioration.
• A safety hard hat is highly recommended to be worn at
all times.
• Always wear safety chaps or trousers.
• Wear heavy duty, non-slip gloves for improved grip, and
also for protection against cold and vibration.
• Safety tip shoes or boots (steel cap) with non-slip sole
should be worn.
• Never wear loose clothing, unbuttoned jackets, flared
sleeves and cuffs, scarfs, tie-strings, neck-ties, cords,
chains, jewellery, etc. which could snag the saw chain or
under brush.
INTRODUCTION
7
7
4
PERSONAL EQUIPMENT (continued)
• Clothing should be of sturdy, protective material. It should be snug-fitting to resist
snagging, but roomy enough for freedom of movement.
FUEL
WARNING DANGER
Petrol and Fuel are extremely flammable. IF spilled or ignited by source, it can cause fire and serious injury or property
damage. Extreme caution is required, when handling Petrol or Fuel.
• Use an appropriate type fuel container that comply with Australian standards.
• Do not smoke or bring flame or sparks near fuel supplies.
• The fuel tank may be under pressure. Always loosen the fuel cap and wait for pressure to be equalized before removing
the cap.
• Fill the fuel tank outdoors over bare ground and install the fuel cap securely. Do not pour fuel indoors.
STARTING ENGINE
• Move the chain saw at least 3m from the fuelling point before starting the engine.
• Do not allow other persons to be near the chain saw when you are starting or cutting with the chain saw. Keep
bystanders and animals 15m out of the work area. Do not let anyone hold wood for you to cut.
• Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.
• Australian certified chainsaw chaps or trousers should be worn at all times while using a chainsaw.
• Safety vests, leg chaps and logger’s pants of ballistic material are available. It is the operator’s responsibility to wear
such additional protection if conditions warrant it.
• Never operate a chain saw when you are alone. Arrange to have someone remain within calling distance in case you
need help.
• Wipe any spilled fuel off the unit.
• Never refuel while the engine is still hot, because a fuel leak could start a fire.
• Do not store the unit with fuel in its tank, because a fuel leak could start a fire.
• Bring an extinguisher or shovel in case of fire. Despite the precautions which can be taken,operating a chain saw, or
just working in the forest, presents dangers.
• After refuelling tighten fuel cap firmly and check for leakage. In case of fuel leakage repair before starting operation
since there is a danger of fire.
• Before you start the engine, make sure that the saw chain is not contacting anything
SAFETY RULES & PRECAUTIONS
5
STARTING ENGINE
• Keep the handles dry, clean, and free of oil or fuel mixture.
• Operate the chain saw only in well-ventilated areas. Exhaust gas, oil mist (from chain saw lubrication) or saw dust saw
is harmful to health.
TRANSPORTATION
• When transporting your chain saw, use the appropriate guide bar cover. Fig 1
• Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the silencer away from your
body.
KICKBACK SAFETY
• 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. Fig. 2.
• Tip contact in some cases may cause a lightning-fast reverse reaction, kicking the guide bar up and back toward the
operator (this is called a rotational kickback). Pinching the saw chain along the top of the guide bar may push the guide
bar rapidly back toward the operator (this is called a linear kickback).
• Either or these reactions may cause you to lose control of the saw and come in contact with the moving chain, which
could result in serious personal injury. As a chain saw user, you should take several steps to keep your 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. Understand that rotational kickback is preventable by keeping an unshielded bar nose from
touching an object or the ground.
• Do not operate a chain saw with one hand! Serious injury to the operator, helpers or bystanders may result from onehanded operation. For proper control, always use two hands when operating a chain saw, one hand which operates the
trigger. This can result in the chain saw “skating” or skidding, which can result in personal injury due to loss of control.
• Keep a good firm 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 enriching the chain saw handles. A firm
grip will help you reduce kickback and maintain control of the saw. Two hands must be used to control the saw at all
times.
• Do not overreach or cut above chest height. Make sure that the area in which you are cutting is free from obstructions.
Do not let the bar nose contact a log, branch, or any other obstruction
which could be hit while you are operating the saw. Fig. 3.
• Cutting at high engine speeds may reduce the likelihood of kickback.
But cutting at part-throttle or low engine speed may be preferable to
control the chain saw in tight situations and may also reduce the likelihood of kickback.
• Follow manufacturer’s sharpening and maintenance instructions for the saw chain.
presents dangers.
•After refueling tighten fuel cap firmly and check for
leakage. In case of fuel leakage repair before starting
operation since there is a danger of fire.
•Fill the fuel tank outdoors over bare ground and install
the fuel cap securely. Do not pour fuel indoors.
•Wipe any spilled fuel off the unit.
•Never refuel while the engine is still hot, because a
fuel leak could start a fire.
•Do not store the unit with fuel in its tank, because a
fuel leak could start a fire.
•Bring an extinguisher or shovel in case of fire.
Despite the precautions which can be taken,
operating a chain saw, or just working in the forest,
presents dangers.
•After refueling tighten fuel cap firmly and check for
leakage. In case of fuel leakage repair before starting
operation since there is a danger of fire.
TRANSPORTATION
• When transporting your chain saw, use the
appropriate guide bar cover.
• Carry the chain saw with the engine stopped,
the guide bar and saw chain to the rear, and
the silencer away from your body.
KICKBACK SAFETY PRECAUTIONS
WARNING DANGER
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.
• Keep a good rm 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 rm grip with
thumbs and ngers enriching the chain saw
handles. A rm grip will help you reduce
kickback and maintain control of the saw.
Two hands must be used to control the saw
at all times.
WARNING ▲ DANGER
KICKBACK SAFETY PRECAUTION FOR CHAIN
SAW USERS JICKBACK 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.
•Tip contact in some case may cause a lightning-fast
•Either or these reactions may cause you to lose
control of the saw and come in contact with the
moving chain, which could result in serious personal
injury. As a chain saw user, you should take several
steps to keep your cutting jobs free from accident or
injury.
•With a basic understanding of kickback, you can
•Either or these reactions may cause you to lose
control of the saw and come in contact with the
moving chain, which could result in serious personal
injury. As a chain saw user, you should take several
steps to keep your 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. Understand
•Fill the fuel tank outdoors over bare ground and install
the fuel cap securely. Do not pour fuel indoors.
•Wipe any spilled fuel off the unit.
•Never refuel while the engine is still hot, because a
fuel leak could start a fire.
•Do not store the unit with fuel in its tank, because a
fuel leak could start a fire.
•Bring an extinguisher or shovel in case of fire.
Despite the precautions which can be taken,
operating a chain saw, or just working in the forest,
presents dangers.
•After refueling tighten fuel cap firmly and check for
leakage. In case of fuel leakage repair before starting
operation since there is a danger of fire.
• Keep a good rm 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 rm grip with
thumbs and ngers enriching the chain saw
handles. A rm grip will help you reduce
kickback and maintain control of the saw.
Two hands must be used to control the saw
at all times.
• Do not overreach or cut above chest height.
Make sure that the area in which you are
cutting is free from obstructions. Do not let
the bar nose contact a log, branch, or any
other obstruction which could be hit while you
are operating the saw.
•Either or these reactions may cause you to lose
control of the saw and come in contact with the
moving chain, which could result in serious personal
injury. As a chain saw user, you should take several
steps to keep your 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. Understand
that rotational kickback is preventable by keeping an
unshielded bar nose from touching an object or the
ground.
SAFETY RULES & PRECAUTIONS
Fig. 1
Fig. 2
Fig. 3
6
KICKBACK SAFETY (continued)
• Use only replacement guide bars and chains specified by the manufacturer, or the acceptable equivalent of these guide
bars and chains.
OTHER SAFETY PRECAUTIONS - VIBRATION AND COLD
• It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be
brought about by exposure to cold and vibration. Accordingly, your chain saw has shock mount designed to reduce
the intensity of vibration received through the handles. Exposure to cold and vibration may cause tingling and burning
followed by loss of colour and numbness in the fingers. We strongly recommend you taking the following precautions
because the minimum exposure which might trigger the ailment is unknown.
• Keep your body warm, especially the head and neck, feet and ankles, and hands and wrists.
• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks and also by not
smoking.
• Limit the number of hours of chain saw operation. Try to fill a part of each work day with jobs other than chain sawing.
• If you experience discomfort, redness and swelling of the fingers, followed by whitening and loss of feeling, consult your
physician before further exposing yourself to cold and vibration.
MACHINE CONDITIONS
• Do not modify a chain saw in any way.
• Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled.
• Do not operate the chain saw with a loose or defective silencer. Be sure that the saw chain stops moving when the
throttle control trigger is released.
REPETITIVE STRESS INJURIES
• It is believed that overusing the muscles and tendons of the fingers, hands, arms and shoulders may cause soreness,
swelling, numbness, weakness and extreme pain to the areas just mentioned. To reduce the risk of repetitive stress
injury, do the following:
• Avoid using your wrist in a bent, extended or twisted position. Instead, try to maintain a straight wrist position. Also,
when grasping, use your whole hand, not just the thumb and index finger.
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force in which you do the repetitive movement. Do exercises to strengthen the hand and arm
muscles. See a doctor if you feel tingling, numbness or pain in the fingers, hands, wrists or arms.
CUTTING
• Do not operate a chain saw in a tree unless you have been specifically trained to do so.
• Keep all parts of your body away from the saw chain when the engine is running.
SAFETY RULES & PRECAUTIONS
7
CUTTING
• 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 by the limb or chain
saw when the tension in the wood fibres is released.
• Cutting while on a ladder is extremely dangerous because the ladder can slip and your control of the chain saw is
limited. Working aloft should be left to professionals.
• Stop the engine before setting the chain saw down.
WOOD PRACTICES
• Operating a chain saw safely requires a chain saw in proper working order, sound judgment, and knowledge of the
methods which should be applied in each cutting situation.
• Do not let any person use your saw unless they have read this owner’s manual and fully understands its instructions.
• Never let children operate the saw.
• Use your saw only to cut wood or wood products. Do not cut solid metal, sheet metal, plastics or any non-wood
materials.
• Stay on the uphill side when bucking or limbing logs which might roll when cut.
• Keep both feet on the ground. Do not work from off-the-ground positions.
CHAIN BRAKE
• The chain brake’s function is to stop chain rotation after a kickback.
It neither prevents nor reduces kickback. Do not depend on the chain
brake for protection against kickback. Even with a chain brake, depend
on your own good sense and proper cutting methods just as though
there were no chain brake. Fig. 4.
• Even with normal use and proper maintenance, the response time of the brake may lengthen. The following may
interfere with the brake’s ability to protect the operator.
• Saw wrongly held too close to operator’s body. Kickback time may be too fast even for a perfectly maintained brake to
work in time. Fig. 4.
• The operator’s hand may not be in position to contact the hand guard. Brake will not be tripped.
• Lack of proper malignance lengthens the brake’s stopping time, making it less effective.
• Dirt, grease, oil, pitches, etc. getting into the working parts of the mechanism may lengthen the stopping time.
SAFETY RULES & PRECAUTIONS
Fig. 4
8
15
16
17
18
14
21
20
19
22
23
4
3
2
13
12
11
10
9
8
7
6
5
1
DESCRIPTION
9
1. OPERATOR’S MANUAL – Included with unit. Read before operation and keep for future reference to learn proper, safe operating
techniques.
2. FRONT HAND GUARD / CHAIN BRAKE LEVER – Guard between the front handle and the saw chain for protecting the hand from
injuries and aiding in control of the chain saw if the hand slips off the handle. This guard is used to activate the chain brake which is
to stop the saw chain rotation.
3. REAR HANDLE (FOR THE RIGHT HAND) – Support handle located towards the rear of the engine housing.
4. THROTTLE TRIGGER LOCKOUT – A safety lever which must be depressed before the throttle trigger can be activated in order to
prevent the accidental operation of the throttle trigger.
5. REAR HAND GUARD – Extension on the lower part of the rear handle for protecting the hand from the chain if it breaks or
degrooves.
6. THROTTLE TRIGGER – Device activated by the operator’s finger, for controlling the engine speed.
7. CHOKE CONTROL KNOB – Device for enriching the fuel/air mixture in the carburettor to aid cold starting.
8. CLUTCH COVER – Protective cover to the guide bar, saw chain, clutch and sprocket when the chain saw in use.
9. CHAIN TENSION ADJUSTER – This is device to adjust chain tension.
10. CHAIN CATCHER – A projection designed to reduce the risk of the operator’s right hand from being hit by a chain which has
broken or derailed from the guide bar during cutting.
11. SPIKED BUMPER – Devise, fitted in front of the guide bar mounting point, acting as a pivot when in contact with
a tree or log.
12. GUIDE BAR – The part that supports and guide the saw chain.
13. CHAIN – Chain, serving as a cutting tool.
14. CYLINDER COVER – The cooling air flow grill. It covers the cylinder, spark plug, silencer and air cleaner.
15. FRONT HANDLE (FOR THE LEFT HAND) – Support handle located at the front of the engine housing.
16. OIL TANK CAP – For closing the oil tank.
17. STARTER HANDLE – The grip of the starter, for starting the engine.
18. FUEL TANK CAP – For closing the fuel tank.
19. IGNITION SWITCH – Device for connecting and disconnecting the ignition system and thus allowing the engine to be started or
stopped.
20. AIR CLEANER COVER – Covers air filter.
21. CLEANER COVER KNOB – Device for installing the air cleaner cover.
22. GUIDE BAR COVER – Remove device for covering the guide bar and saw chain during transport and other times
when the chain saw is not in use
23. PRIMER BUBBLE – The primer will pump a small amount of fuel into the carburetor.
DESCRIPTION
10
WARNING
For your own safety, always stop the engine before performing any of the following operations; wear gloves before
operating saw.
MOUNTING THE GUIDE BAR AND CHAIN
• Unscrew two nuts and remove clutch cover.
• Mount bar and side it toward clutch to make saw chain installation easier.
• Install saw chain as shown. Put the chain behind clutch drum, then pull the chain in order to
guide teeth suitable to the guide groove of guide bar. (Ensure cutters are pointing in the correct
direction). Fig. 5. (Direction of chain is also marked on sprocket cover).
• Install the clutch cover and put the tensioner pin into bar hole (adjust the chain tension adjuster to move the tensioner
pin for adapting to the bar hole) then mount spiked bumper, tighten nuts by finger. Never tighten nuts too tight in order
to glide the bar freely.
• Adjust chain tension adjuster until it reaches the appropriate degree.
The method for judging tightness degree of chain: hold the chain up
from the middle section of the bar. The space between guide tooth and
bar should be level to the bottom of the guide bar. Fig. 6.
• Hold up bar nose and tighten both nuts (15-17N.M).
• Pull the chain around the bar by hand. It should round normally and no situation exists that the chain cannot be rounded
or out of guide bar without external force influenced. If the tightness degree is not appropriate, unscrew nuts and
readjust chain tension adjuster.
• Start the engine and run at low speed. Stop and adjust chain tension adjuster again if necessary.
CAUTION
• All adjustments should be made cold.
• Always wear gloves when working on chain.
• Do not operate with a loose chain.
FUEL AND LUBRICATION
• Fuel is a mixture of regular grade petrol and an air cooled 2-stroke engine oil of reputable brand name. Mixture ratio is
Petrol 40 parts: Oil 1 part.
CHAIN LUBRICATION
Proper lubrication of the chain while in operation reduces the friction between the chain and the guide bar or a minimum
and assure a longer life time. Use only special chain oil of high quality for this purpose. Do not use any waste or reclaimed
oil to avoid various problems with the oil pump. In case of emergency it is allowed to use motor oil for a short time.
• Pull the chain around the bar by hand. It
should round normally and no situation
exists that the chain cannot be rounded
or out of guide bar without external force
inuenced. If the tightness degree is not
appropriate, unscrew nuts and readjust
chain tension adjuster.
• Start the engine and run at low speed. Stop
and adjust chain tension adjuster again if
necessary.
CAUTION
• All adjustments should be made cold.
• Always wear gloves when working on chain.
• Do not operate with a loose chain.
WARNING ▲ DANGER
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Start the engine and run at low speed. Stop and adjust
chain tension adjuster again if necessary.
CAUTION
1. All adjustments should be made cold.
2. Always wear gloves when working on chain.
3. Do not operate with a loose chain.
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
• Pull the chain around the bar by hand. It
should round normally and no situation
exists that the chain cannot be rounded
or out of guide bar without external force
inuenced. If the tightness degree is not
appropriate, unscrew nuts and readjust
chain tension adjuster.
• Start the engine and run at low speed. Stop
and adjust chain tension adjuster again if
necessary.
CAUTION
• All adjustments should be made cold.
• Always wear gloves when working on chain.
• Do not operate with a loose chain.
WARNING ▲ DANGER
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Start the engine and run at low speed. Stop and adjust
chain tension adjuster again if necessary.
CAUTION
1. All adjustments should be made cold.
2. Always wear gloves when working on chain.
3. Do not operate with a loose chain.
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
should round normally and no situation
exists that the chain cannot be rounded
or out of guide bar without external force
inuenced. If the tightness degree is not
appropriate, unscrew nuts and readjust
chain tension adjuster.
WARNING ▲ DANGER
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Start the engine and run at low speed. Stop and adjust
chain tension adjuster again if necessary.
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
USING THE PRODUCT
Fuel Mix Chart 40:1
•Pull the chain around the bar by hand. It should round
normally and no situation exist that chain cannot be
rounded or out of guide bar without external force
influenced. If the tightness degree is not appropriate,
unscrew nuts and readjust chain tension adjuster as
step e,f.
•Start the engine and run at low speed. Stop and adjust
chain tension adjuster again if necessary.
CAUTION
1. All adjustments should be made cold.
2. Always wear gloves when working on chain.
3. Do not operate with a loose chain.
Petrol Oil
L mL
2 50
5 125
10 250
Fig. 5
Fig. 6
40
11
STARTING THE COLD ENGINE
• Fill the fuel tank with 2 stroke fuel. Fig. 7 - A.
• Fill the chain oil tank with bar and chain lubricant. Fig. 7 - B.
• Press hand guard forward. (Chain brake ACTIVATED position).
• Turn ignition switch up to on position
• Pull choke control knob all the way out.
• Push primer bubble 3 or 4 times or until bubble is filled with fuel. Fig 7 - C.
• Securely hold the chain saw.
• Make sure guide bar and saw chain are not touching anything when starting the saw.
• Pull starter handle several times until first firing sound is heard.
• Push choke control knob all the way in.
WARNING
• After choke control knob is pulled and then knob is returned to original position, throttle remains a little open (latch
condition).
• If engine is started in this latch condition, chain starts to turn. DO NOT start engine before chain brake is activated.
NOTE: Do not pull starter rope out to the maximum position as it will damage starter. Do not allow starter handle to snap
back against the casing.
WARNING
• After starting the engine, squeeze trigger slightly to release throttle latch and pull front hand guard towards the operator
immediately. (Chain brake RELEASED position).
• Do not increase engine speed while chain brake is engaged.
• Use the chain brake in an emergency. Do not use it unless absolutely necessary.
• When throttle latch is used, saw chain will go into motion as soon as the engine starts. Never use throttle latch for
cutting. Use it only when starting the engine.
STARTING WITH A WARM ENGINE
• Confirm fuel and chain oil in the tanks.
• Press hand guard forward. (Chain brake ACTIVATED position).
• Turn ignition switch up to on position.
USING THE PRODUCT
Fig. 7
12
STARTING WITH A WARM ENGINE (continued)
• Securely hold the chain saw.
• Push primer bubble until firm or filled with fuel.
• Pull starter handle.
• Choke may be used if necessary but after first firing sound, pull throttle trigger a little to release throttle latch and
choke.
WARNING
Clutch engages and chain and will rotate when engine is started with throttle trigger squeezed. After engine starts release
throttle trigger to idle position.
RUNNING
• After engine starts, allow it to idle for a few minutes.
• Squeeze throttle trigger gradually to increase engine revolution.
• The chain starts moving when the engine reaches 3,800 r/min approximately.
• Ensure proper acceleration and lubrication of saw chain and guide bar.
• Do not run the engine at high speed unnecessarily.
• Be sure that saw chain stops moving when throttle trigger is released.
STOPPING THE ENGINE
• Release throttle trigger and turn ignition switch down.
NOTE: If engine does not stop, pull choke control knob all the way out to
stop engine. Check and repair ignition switch before starting the engine
again.
CHECKING CHAIN TENSION
• Chain tension should be checked frequently during work and corrected if necessary. Fig. 8.
• Tension the chain as tight as possible, but so it can still be pulled easily along the bar by hand.
WARNING
Make sure that the engine is shut off when checking chain tension.
CHECKING THE BRAKE FUNCTION
• Place the chain saw on the ground.
• Hold the handle with both hands and accelerate the engine to high speed by throttle trigger.
• Operate the chain brake by turning your left wrist against the front hand guard during your grip on the front handle.
WARNING ▲ DANGER
•Familiarize yourself with your chain saw before you
start actual cutting.
•For this purpose it may be wise to practice by cutting
some small logs or limbs several times.
•Do not allow either people or animal into the work
area. Multiple operators - Keep a safe distance
between two or more operators when working
together simultaneously.
Hold the chain just above a dry surface and open the
throttle to half speed for 30 seconds
A thin line of “thrown” oil should be seen on the dry
surface.
CHECKING THE BRAKE FUNCTION
OF THE BRAKE
• Place the chain saw on the ground.
• Hold the handle with both hands and
accelerate the engine to high speed by
throttle trigger.
• Operate the chain brake by turning your
left wrist against the front hand guard
during your grip on the front handle.
• The chain stop immediately.
• Release the throttle trigger.
PRE CUTTING TEST
• Familiarize yourself with your chain saw
before you start cutting.
• For this purpose it may be wise to practice
by cutting some small logs or limbs
several times.
• Do not allow either people or animals
into the work area. Multiple operators
- Keep a safe distance between two or
more operators when working together
simultaneously.
CHAIN LUBRICANT
Throttle trigger
Throttle trigger lockout
Ignition switch
•Release throttle trigger and turn ignition switch down.
NOTE
When engine does not stop, pull choke control knob
all the way out to stop engine.
Check and repair ignition switch before starting the
engine again.
•Familiarize yourself with your chain saw before you
start actual cutting.
•For this purpose it may be wise to practice by cutting
some small logs or limbs several times.
•Do not allow either people or animal into the work
area. Multiple operators - Keep a safe distance
between two or more operators when working
together simultaneously.
•Familiarize yourself with your chain saw before you
start actual cutting.
•For this purpose it may be wise to practice by cutting
some small logs or limbs several times.
•Do not allow either people or animal into the work
area. Multiple operators - Keep a safe distance
between two or more operators when working
together simultaneously.
USING THE PRODUCT
Fig. 8
13
CHECKING THE BRAKE FUNCTION (continued)
• The chain should stop immediately.
• Release the throttle trigger.
PRE CUTTING TEST
• Familiarize yourself with your chain saw before you start cutting.
• For this purpose it may be wise to practice by cutting some small
logs or limbs several times.
• Do not allow either people or animals 15m into the work area. Multiple operators - Keep a safe distance between two or
more operators when working together simultaneously. Fig 9.
CHAIN LUBRICANT
• Hold the chain just above a dry surface and open the throttle to half speed for 30
seconds A thin line of “thrown” oil should be seen on the dry surface. Fig 10.
RELEASE THE CHAIN BRAKE
• When front hand guard is fully pulled towards the operator, chain brake is released.
• If the chain does not stop immediately, bring the saw to your Bushranger dealer to repair.
WARNING
Most hazardous is the kickback motion of the guide bar such that, in an instant the tip of the bar touches a wood or the
like. Chain brake reduced the possibility of injury due to kickback. You must always check that chain brake works properly
before use.
NON-MANUAL CHAIN BRAKE
The non-manual chain brake stops the operation of the saw chain in such a manner that kickback action produced at
the end of the guide bar non-manually actuates the chain brake. To make sure that the non-manual chain brake operates
properly, proceed as follows:
a. Stop the engine of the chain saw.
b. Operate the front and rear handles with hands (grip them lightly), so that the guide bar may be placed at the height of
about 35cm as shown in the figure aside.
c. Softly detach the left hand from the front handle, and touch the end of the guide bar against the wood or the like placed
below so that the machine receives an impact. (*at this time the rear handle should be gripped lightly with right hand).
The impact is propagated to the brake lever, which actuates the chain brake.
NOTE:
• For practice, while cutting a small tree, push the front guard forward to engage the brake.
• At all times, confirm whether the brake works properly before each work.
• If the chain brake is clogged with wood chips, function of the brake deteriorates a little. Always keep the device clean.
WARNING ▲ DANGER
•Familiarize yourself with your chain saw before you
start actual cutting.
•For this purpose it may be wise to practice by cutting
some small logs or limbs several times.
•Do not allow either people or animal into the work
area. Multiple operators - Keep a safe distance
between two or more operators when working
together simultaneously.
Hold the chain just above a dry surface and open the
throttle to half speed for 30 seconds
A thin line of “thrown” oil should be seen on the dry
surface.
WARNING ▲ DANGER
•Familiarize yourself with your chain saw before you
start actual cutting.
•For this purpose it may be wise to practice by cutting
some small logs or limbs several times.
•Do not allow either people or animal into the work
area. Multiple operators - Keep a safe distance
between two or more operators when working
together simultaneously.
Hold the chain just above a dry surface and open the
throttle to half speed for 30 seconds
A thin line of “thrown” oil should be seen on the dry
surface.
USING THE PRODUCT
Fig. 9
14
USING THE PRODUCT
NOTE (continued)
• Do not increase engine revolution while the chain brake is engaged.
• When using throttle latch at starting, keep the chain brake position. And after starting the engine, release the brake
immediately.
• Never test the brake in an area where petrol fumes are present.
PRECAUTION
• When checking the operation of the non-manual chain brake, use a soft surface substance like wood to provide the
impact so the saw chain is not damaged.
GENERAL CUTTING INSTRUCTIONS
In all circumstances the operation of the chain saw is a one-man job. It is difficult at times to take care for your own safety,
so don’t assume the responsibility for a helper as well. After you have learned the basic techniques of using the saw, your
best aid will be your own good common sense.
The accepted way to hold the saw is to stand to the left of the saw with your left hand on the front handle so you can
operate the throttle trigger with your right index finger.
Before attempting to fell a tree, cut some small logs or limbs. Before thoroughly familiar with the control and the responses
of the saw. Start the engine, see that is running properly. Squeeze the trigger to open the throttle wide open, then start the
cut. It is not necessary to press down hard to make the saw cut. If the chain is properly sharpened, the cutting
should be relatively effortless. Pushing the saw too hard will slow the engine and cutting will actually be more difficult.
Some material may adversely affect the housing of your chain saw.
(Example: palm tree acid, fertilizer etc.) To avoid housing deterioration carefully remove all packed saw dust around clutch
and guide bar area and wash with water.
WARNING
Do not let the nose or tip of the guide bar touch anything while the engine is running to avoid kickback.
FELLING A TREE
A falling tree can seriously damage anything it may hit a car, a house, a fence a power line or another tree. There are ways
to make a tree fall where you want it, so first decide where that is! Before cutting, clear the area around the tree you will
need good footing while working and you should be able to work the saw without hitting any obstacles.
Next select a path of retreat. When the tree begins to fall you should retreat away from the direction of fall at a 45-degree
angle to avoid the trunk kicking back over the stump. (See figure A). Begin the cut on the side to which the tree is to fall. Cut
a notch approximately 1/3 of the way into the tree. (See figure B). The position of this notch is important since the tree will
try to fall “into” the notch. (See figure B). The felling cut is made on the side opposite the notch. Make the felling cut placing
spiked bumper 2.5 cm to 5cm above the bottom of the notch and stop cutting at approximately 1/10 of diameter to the
inner edge of the notch (See figure C) in order to leave the uncut portion of the wood as a hinge.
Do not try to cut through to the notch with the felling cut. The remaining wood between the notch cut and felling cut will
act as a hinge when the tree falls, guiding it in the desired direction. When the tree starts to fall, stop the engine, place the
saw on the ground and make your retreat quickly. To fell a big tree with a diameter exceeding twice the bar length start the
notching cuts from one side and draw the saw through to the other side of the notch.
15
CAUTION
Do not saw above chest height.
BUCKING
Bucking is the sawing of a log or fallen tree into smaller pieces. There are a few basic rules which apply to all bucking
operations. Keep both hands on the handles at all times. Support logs if possible. When cutting on a slope or hillside, always
stand uphill.
FELLING A TREE (continued)
Start the back cut on one side of the tree with spiked bumper engaged, pivoting the saw through to from the desired
hinge on that side. Then remove the saw for the second cut. Insert the saw in the first cut very carefully so as not to cause
kickback. The final cut is made by drawing the saw forward in the cut to reach the hinge. (See figure D).
Figure A
Figure A
Figure B
USING THE PRODUCT
The felling cut is made on the side opposite
the notch. Make the felling cut placing spiked
bumper 2.5 cm to 5cm above the bottom of the
notch and stop cutting at approximately 1/10
of diameter to the inner edge of the notch (See
gure C) in order to leave the uncut portion
of the wood as a hinge.
Do not try to cut through to the notch with the
felling cut. The remaining wood between the
notch cut and felling cut will act as a hinge when
the tree falls, guiding it in the desired direction.
When the tree starts to fall, stop the engine,
place the saw on the ground and make your
retreat quickly.
To fell a big tree with a diameter exceeding twice
the bar length start the notching cuts from one
side and draw the saw through to the other side
of the notch.
Start the back cut on one side of the tree with
spiked bumper engaged, pivoting the saw
through to from the desired hinge on that side.
Then remove the saw for the second cut.
Insert the saw in the rst cut very carefully so as
not to cause kickback.
The nal cut is made by drawing the saw forward
in the cut to reach the hinge. (See gure D).
Figure A
Figure B
Figure C
Figure D
Figure A
Figure D
16
TENSION AND COMPRESSION IN TIMBER
A length of timber lying on the ground will be subject to
tension and compression depending at which points the
major support is.
When timber is supported at its ends the compression
side is at the top and the tension side is at the bottom.
To cut between these support points make the first cut
downwards approximately 1/3rd the timber diameter.
The second cut is made upwards and should meet the
first cut.When the timber is supported at one end only
make the first cut upwards approximately 1/3rd the timber
diameter. The second cut is made downwards and should
meet the first cut.
CAUTION
If you have misjudged the effects of tension and
compression, and cut from the wrong side, the
timber will pinch the guide bar and chain, trapping it.
Racing the engine with the chain jammed will burn out
your clutch.
If the chain should become jammed and the saw
can not be removed from the cut do not force it out.
Stop the saw, force a wedge into the cut to open it up.
Never force the saw when it is jammed. Do not force the
saw into the cut. A dull chain is unsafe and will cause
excessive wear to the cutting attachments. A good way to
tell when the chain is dull is when fine saw dust comes
out instead of chips.
CAUTION
Do not touch hot surfaces of cylinder cover and silencer,
after you have used the chain saw.
WARNING
Never use throttle latch for cutting jobs.
USING THE PRODUCT
17
SERVICE MAINTENANCE GUIDE
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAGE BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 19 •
Spark Plug Inspect/Clean/Adjust/Replace 20 •
Carburettor Inspect/Clean 18 •
Cooling System Inspect/Clean 20 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 19 •
Sprocket Inspect/Replace 21 •
Chain Brake Inspect/Replace 12 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 21 •
Screws, Bolts and nuts Inspect/Tighten/Replace - •
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of
required maintenance
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAGE BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 18 •
Spark Plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Adjust/Replace and adjust 18 •
Cooling System Inspect/Clean 19 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 18 •
Sprocket Inspect/Replace 19 •
Chain Brake Inspect/Replace 13 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 19 •
Fuel System Inspect/Repair - •
Screws, Bolts and nuts Inspect/Tighte
n/Replace - •
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of
SERVICE MAINTENANCE GUIDE
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAGE BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 18 •
Spark Plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Adjust/Replace and adjust 18 •
Cooling System Inspect/Clean 19 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 18 •
Sprocket Inspect/Replace 19 •
Chain Brake Inspect/Replace 13 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 19 •
Fuel System Inspect/Repair - •
Screws, Bolts and nuts Inspect/Tighten/Replace - •
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAGE BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 18 •
Spark Plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Adjust/Replace and adjust 18 •
Cooling System Inspect/Clean 19 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 18 •
Sprocket Inspect/Replace 19 •
Chain Brake Inspect/Replace 13 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 19 •
Fuel System Inspect/Repair - •
Screws, Bolts and nuts Inspect/Tighte
n/Replace - •
TROUBLE SHOOTING
SERVICE MAINTENANCE GUIDE
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAG E BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 18 •
Spark Plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Adjust/Replace and adjust 18 •
Cooling System Inspect/Clean 19 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 18 •
Sprocket Inspect/Replace 19 •
Chain Brake Inspect/Replace 13 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 19 •
Fuel System Inspect/Repair - •
Screws, Bolts and nuts Inspect/Tighten/Replace - •
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of
required maintenance
TROUBLE SHOOTING
SERVICE MAINTENANCE GUIDE
AREA MAINTENANCE PAG E BEFORE USE MONTHLY
Air Filter Clean/Replace 18 •
Fuel Filter Inspect/Clean/Replace 18 •
Spark Plug Inspect/Clean/Adjust/Replace 19 •
Carburettor Adjust/Replace and adjust 18 •
Cooling System Inspect/Clean 19 •
Silencer Inspect/Tighten/Clean - •
Oil Filter Inspect/Clean/Replace 18 •
Sprocket Inspect/Replace 19 •
Chain Brake Inspect/Replace 13 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 19 •
Fuel System Inspect/Repair - •
Screws, Bolts and nuts Inspect/Tighten/Replace - •
TROUBLE SHOOTING
Trouble
Cause
Remedy
Engine - starts hard
- does not start
Engine Fuel at No fuel at
cranks carburetton carburetton
• Fuel filter clogged
• Fuel line clogged
• Carburettor
• Clean or replace
• Clean
• Ask your dealer
Fuel at cylinder No fuel at
cylinder
• Carburettor
• Ask your dealer
Silencer wet with
fuel
• Fuel mixture is too rich
• Open choke
• Clean/replace air filter
• Adjust carburettor
• Ask your dealer
Spark at end of No spark at
end
plug wire of plug wire
• Ignition switch off
• Electrical problem
• Turn switch on
• Ask your dealer
Spark at plug No spark at
plug
• Spark gap incorrect
• Covered with carton
• Fouled with fuel
• Spark plug defective
• Adjust 0.6 to 0.7 mm
• Clean or replace
• Clean or replace
• Replace plug
Engine
does not
crank
• Internal engine problem
• Ask your dealer
Engine
runs
Dies or
accelerates
poorly
• Air filter dirty
• Fuel filter dirty
• Fuel vent plugged
• Spark plug
• Carburettor
• Cooling system plugged
• Exhaust port/silencer
plugged
• Clean or replace
• Clean or replace
• Clean
• Clean and adjust/replace
• Adjust
• Clean
• Clean
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of
required maintenance
WARNING
All chain saw service, other than items listed in the operator’s manual should be performed by your Bushranger
dealer.
MAINTENANCE
18
SERVICE
If you have any questions or troubles, please contact your Bushranger® dealer.
CARBURETTOR
• Do not adjust the carburettor. If adjustment is required return the saw to your local Bushranger® dealer.
AIR FILTER
• Check before every use.
REMOVING AIR FILTER
• Unscrew the air filter cover locking screw and lift off the cover (Fig. D), exposing the air filter (Fig. F-C). Remove the air
filter locking nut and lift the air filter element up and out. (Fig. F)
NOTE: The T-piece design filter cartridge slides into the housing and is held in place with the top nut. (Fig. F-B).
• Cleaning the air filter surfance can be done by lightly tapping the corner of the filter on a hard surface. If compressed air
has to be used, blow at low force from the inside of the filter.
NOTE: Never clean with water or any type of solution.
INSTALLING AIR FILTER ELEMENT
• Slide the filter element down and ensure it is making contact with the top and bottom seals. (Fig. E).
• Screw down the lock knob and replace the air filter top cover by positioning the single front tab on the cover into the
slot provided (Fig. F-A) and lightly pushing down, screw in the cover locking knobs.
NOTE: When fitting the air filter cover there is no need for extreme force the cover will fall into place.
MAINTENANCE
A. Air Filter Cover Slot
B. Air Filter Element Locking Knob
C. Air Filter Element
D. Air Filter Cover
19
MAINTENANCE
FUEL FILTER
• Check periodically.
• Do not allow dust to enter fuel tank.
• Clogged filter will cause difficulty in starting engine or abnormalities in engine performance.
• Pick up the fuel filter through fuel inlet port with a piece of steel wire or the like.
• When the filter is dirty, replace it.
• When the inside of the fuel tank is dirty, it can be cleaned by rinsing the tank out with petrol.
WARNING
When starting, idle speed adjuster should be adjusted not to rotate the saw chain. When there is some trouble with the
carburettor, contact your Bushranger® dealer.
OIL FILTER
• Check periodically.
• Do not allow dust to enter oil tank.
• Clogged oil filter will affect the normal lubricating system.
• Pick it up through oil filling hole with a piece of steel wire or the like.
• If the filter is dirty, wash it in petrol or replace it.
• When the inside of the tank gets dirty, it can be cleaned by rinsing the tank out with petrol.
AUTOMATIC OILER
• The discharge volume of the automatic oiler is adjusted to 7 mL/min approximately at 7,000 r/min, prior to shipment
from factory. Fig 11.
• To increase the delivery volume, turn the adjusting screw anticlockwise. When the adjusting screw touches stopper and
stops, this position indicates maximum discharge volume. (13 mL/min 7,000 r/min)
• Do not turn the adjusting screw beyond the max. or min. limit of volume adjustment.
SPROCKET
• The damaged sprocket will cause premature
damage or wear of saw chain.
• When the sprocket has worn out 0.5mm or
more replace it.
• Check sprocket when you install new chain.
• Replace it if worn.
SPARK PLUG
• Check periodically.
• The standard spark gap is 0.6 to 0.7 mm.
Correct the spark gap if it is wider or narrower
than the standard gap.
• Clean before using.
- Clean the groove of the guide bar with for example a
small screw drive.
- Clean oil holes with a wire.
• Reverse guide bar periodically.
• Clean sprocket, clutch and bar mount area before
installation of guide bar.
NOTE
When replacing guide bar or saw chain, ask your
dealer.
• The damaged sprocket will cause premature damage
or wear of saw chain.
- When the sprocket has worn out 0.5mm or more.
replace it.
• Check sprocket when you install new chain. Replace
it if worn.
• Clean before using.
- Clean the groove of the guide bar with for example a
small screw drive.
- Clean oil holes with a wire.
• Reverse guide bar periodically.
• Clean sprocket, clutch and bar mount area before
installation of guide bar.
NOTE
When replacing guide bar or saw chain, ask your
dealer.
• The damaged sprocket will cause premature damage
or wear of saw chain.
- When the sprocket has worn out 0.5mm or more.
replace it.
• Check sprocket when you install new chain. Replace
it if worn.
Fig. 11
20
SPARK PLUG
• Check periodically.
• The standard spark gap is 0.6 to 0.7 mm. Correct the spark gap if it is wider or narrower than the standard gap.
• Fastening torque: 15 to 17 N • m (150 to 170 kgf•cm)
CYLINDER FINS
• Check periodically.
• Clogged fins will result in poor engine cooling.
• Remove dirt and dust from between fins to let cooling air pass easily.
SAW CHAIN MAINTENANCE - SHARPENING THE CHAIN
WARNING
To ensure that the chainsaw works safely and efficiently, is it essential that the cutting components are well sharpened. Any
work on the chain and bar require specific experience and special tools. For safety purposes we recommend you contact
your Bushranger® dealer to ensure work is done correctly.
Sharpening is necessary when:
• The sawdust looks like dust;
• Cutting becomes difficult;
• The cut is not straight;
• Vibrations increase.
A specialised Bushranger® dealer will sharpen the chain using the right tools to ensure minimal removal of material and
even sharpness on all cutting edges. If you sharpen the chain yourself, use special round-section files with the right
diameter depending on the type of chain (see chain maintenance table). Fig 12 - page 22. You need a certain amount of skill
and experience to avoid damaging the cutting edges.
WARNING
Make sure the engine is not running.
• Refer to Fig. 13, page 22.
• Secure the bar firmly, with the chain mounted, in a suitable vice.
• Tighten the chain if it is loose.
• Mount the file in the guide and then insert it in the tooth at a constant angle from the cutting edge.
• Sharpen in a forward motion a few times and repeat this on all the cutting edges facing the same way (right or left).
• To move the chain forward, release the brake, then use a screwdriver to make the chain run.
• Turn the bar over in the vice and repeat on all other cutting edges.
MAINTENANCE
21
MAINTENANCE
SAW CHAIN MAINTENANCE - SHARPENING THE CHAIN (continued)
• Check that the depth gauge does not stick out further than the inspection instrument and file and projecting parts with
a flat file, rounding off the edge.
• After sharpening, remove all traces of filing and dust and lubricate the chain in an oil bath.
Replace the chain whenever:
• The length of the cutting edges reduces to 5mm or less;
• There is too much play between the links and the rivets.
BAR MAINTENANCE - Fig. 14, page 22
To avoid asymmetrical wear on the bar, make sure it is turned over periodically.
To keep the bar in perfect working order, proceed as follows:
• Grease the bearings on the nose sprocket (if present) with the syringe.
• Clean the bar groove with the scraper.
• Clean the lubrication holes.
• With a flat file, remove the burr from the edges and level off the guides.
Replace the bar whenever:
• The groove is not as deep as the height of the drive links (which must never touch the bottom):
• The inside of the guide bar is worn enough to make the chain lean to one side.
SPROCKET - Fig. 15, page 22
• The damaged sprocket will cause premature damage or wear of saw chain.
• When the sprocket has worn out 0.5mm or more replace it.
• Check sprocket when you install new chain.
• Replace it if worn.
WARNING
The characteristic data of the chain and bar homologated for this machine are showing in the “EC Conformity Statement”
that accompanies same machine. Do not use other types of chains or bars for safety reasons. The table gives the
sharpening data for different types of chains, but this does not mean you can use different chains from the homologated
one.
22
MAINTENANCE
BAR MAINTENANCE (continued)
Fig. 12
Fig. 13
Fig. 14
Fig. 15
23
LONG TERM STORAGE (OVER 60 DAYS)
Do not store your unit for a prolonged period of time (60 days or longer) without performing protective storage maintenance
which includes the following:
a. Store unit in a dry, dust free place, out of the reach of children and other unauthorized persons.
b. Place the ignition switch to the “STOP” position.
c. Remove accumulation of grease, oil, dirt and debris from exterior of unit.
d. Perform all periodic lubrication and services that are required.
e. Tighten all the screw and nuts.
f. Drain the fuel tank completely and pull the recoil starter handle several times to remove fuel from the carburettor.
g. Always store fuel in approved container.
h. Remove the spark plug and pour 1/2 tablespoon of fresh, clean, two-stroke engine oil into the cylinder through the spark
plug hole. Place a clean cloth over the spark plug hole. Pull the recoil starter handle 2 or 3 times to distribute the oil inside
the engine. Observe the piston location through the spark plug hole.
Pull the recoil starter handle slowly until the piston reaches the top of its travel and leave it there.
i. Install the spark plug (do not connect ignition cable).
j. Cover the chain and the guide bar with the guide bar cover before putting them in storage.
WARNING
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
NOTE: For future reference, you should keep this operator’s manual.
• If this operator’s manual has become illegible through impairment or is lost, please purchase a new one from your
dealer.
• When renting a machine together with this operator’s manual provides explanation and instruction, please rent out the
machine together with this operator’s manual to a person who operates the borrowed machine.
• When transferring a product, please deliver it attaching the operator’s manual.
NOTE: Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of
publication, but are subject to change without notice. Illustrations may include optional equipments and accessories, and
may not include all standard equipment
MAINTENANCE
24
SPECIFICATIONS
SPECIFICATIONS
Model name CS4210
External dimensions: L x M x N mm 385x230x270
Dry weight: Saw without guide bar and chain Empty tanks kg 5.3
Volume: Fuel tank
Tank of chain lubrication oil
cm³
cm³
370
220
Cutting length: usable cutting lengths of standard guide bar mm 16"(400)
Saw Chain: Standard chain
Guide bar
Sprocket: Specified number of teeth N/mm
6
Chain oil Bar and Chain Oil
Gasoline : 2-cycle motor oil 40 :1
Type Air cooled 2-cycle single cylinder
Carburetor Cylinder Diaphragm type
Type of carburetor
Walbro
Spark plug - NGK or Champion
BPMR7A / RCJ6Y
Magneto Fly wheel magneto, CDI system
Engine displacement cm³ 41.6
Maximum shaft brake power:(IS0 7293) KW 1.4
Engine speed : Maximum speed with cutting attachment
Maximum idling speed
Minimum clutch engagement speed
r/min
r/min
r/min
11000
3300 + 400
4700
Vibrations: (IS0 7505) m/s² 9.5
Sound pressure leveI:(EN 27182)LpAav= db(A) 102.8
Sound pressure leveI:(ISO/Dis 9207) LwAav= db(A) 113.4
Specifications are subject to change without notice
Prokut - GAF20S056DL
Prokut - GAFAA1620DL
050 gauge
1. Australian Consumer Law (REG. 90):
The benefits to the consumer given by this warranty are in addition to other rights and remedies of the consumer under a law
in relation to the good or services to which this warranty relates.
Our goods come with guarantees that cannot be excluded under the Australia Consumer Law. You are
entitled to a replacement or refund for a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the good repaired or replaced if the goods fail to
be of acceptable quality and the failure does not amount to
major failure.
The text above applies notwithstanding anything else expressed or implied to the contrary in this warranty
document.
2
Y E ARS
D OMESTIC
W ARRANTY
SPECIFICATIONS
25
NOTES
26
NOTES
27
NOTES
28
Visit www.rgs.com.au or call 1300 363 027 for more information.
Copyright © Roy Gripske and Sons Pty. Ltd. 2018. All rights reserved. 1012. Images are for illustrative purposes only.
Bushranger® is a trademark of Roy Gripske & Sons Pty Ltd. PLP shall not be liable for technical or editorial errors or omissions
contained herein, nor for incidental or consequential damages resulting from furnishing this material. The information is provided
“as is” without warranty of any kind and is subject to change without notice. PLP also reserves the right to revise the content of
this document at any time without prior notice. No part of this document may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording or storing in a retrieval system, or translated into any language
form without prior written permission of PLP.
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