Ryobi RY10520 Operator's Manual
Reklama
Reklama
OPERATOR’S MANUAL
RY10520 / 20 in. 46cc Chain Saw
RY10518 / 18 in. 46cc Chain Saw
(ALL VERSIONS)
ENGINE/EVAP. FAMILY: *HCPS.0464AC
Your chain saw has been engineered and manufactured to Ryobi’s high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.
Thank you for buying a Ryobi product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
Cette scie à chaîne a été conçue et fabriquée conformément aux strictes normes de fiabilité, simplicité d’emploi et sécurité d’utilisation de Ryobi. Correctement entretenue, elle vous donnera des années de fonctionnement robuste et sans problème.
AVERTISSEMENT :
Pour réduire les risques de blessures, l’utilisateur doit lire et veiller à bien comprendre le manuel d’utilisation avant d’employer ce produit.
Merci d’avoir acheté un produit Ryobi .
Su motosierra ha sido diseñada y fabricada de conformidad con las estrictas normas de Ryobi para brindar fiabilidad, facilidad de uso y seguridad para el operador. Con el debido cuidado, le brindará muchos años de sólido y eficiente funcionamiento.
ADVERTENCIA:
Para reducir el riesgo de lesiones, el usuario debe leer y comprender el manual del operador antes de usar este producto.
Le agradecemos la compra de un producto Ryobi .
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE
GUARDE ESTE MANUAL PARA
FUTURAS CONSULTAS
TABLE OF CONTENTS
TABLE DES MATIÈRES / ÍNDICE DE CONTENIDO
Introduction .......................................................................................................................................2
Introduction / Introducción
General Safety Rules ..................................................................................................................... 3-4
Règles de sécurité générales / Reglas de seguridad generales
Specific Safety Rules .................................................................................................................... 4-5
Règles de sécurité particulières / Reglas de seguridad específicas
Symboles / Símbolos
Glossary of Terms ..............................................................................................................................8
Glossaire / Glosario de términos
Features ....................................................................................................................................... 9-10
Caractéristiques / Características
Assembly .........................................................................................................................................11
Assemblage / Armado
Operation ................................................................................................................................... 11-24
Utilisation / Funcionamiento
Maintenance .............................................................................................................................. 25-37
Entretien / Mantenimiento
Bar and Chain Combinations ..........................................................................................................38
Vue éclatée et liste des pièces / Vista desarrollada y lista de piezas
Troubleshooting ......................................................................................................................... 38-39
Dépannage / Corrección de problemas
Warranty .................................................................................................................................... 40-41
Garantie / Garantía
Parts Ordering and Service ............................................................................................... Back Page
Commande de pièces et réparation / Pedidos de piezas y servicio ......................................................... Page arrière / Pág. posterior
INTRODUCTION
INTRODUCTION / INTRODUCCIÓN
This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability have been given top priority in the design of this product making it easy to maintain and operate.
* * *
Ce produit offre de nombreuses fonctions destinées à rendre son utilisation plus plaisante et satisfaisante. Lors de la conception de ce produit, l’accent a été mis sur la sécurité, les performances et la fiabilité, afin d’en faire un outil facile à utiliser et à entretenir.
* * *
Este producto ofrece numerosas características para hacer más agradable y placentero su uso. En el diseño de este producto se ha conferido prioridad a la seguridad, el desempeño y la fiabilidad, por lo cual se facilita su manejo y mantenimiento.
Page 2
GENERAL SAFETY RULES
WARNING:
Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury.
READ ALL INSTRUCTIONS
Know your tool. Read the operator’s manual carefully. Learn the saw’s applications and limitations as well as the specific potential hazards related to this tool.
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. Tip contact in some cases may cause a lightning-fast reverse reaction, kicking the guide bar up and back toward the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back toward the operator. Either of these reactions may cause you to lose control of the saw, which could result in serious personal injury. Do not rely exclusively upon the safety devices built into the saw. 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.
• Keep a good firm grip on the saw with both hands when the engine is running. Place your right hand on the rear handle and your left hand on the front handle with your thumbs and fingers encircling the chain saw handles. A firm grip together with a stiff left arm will help you maintain control of the saw if kickback occurs.
• Make sure 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, fence, or any other obstruction that could be hit while you are operating the saw.
• Cut at high engine speeds. Always cut with the engine running at full speed. Fully
Page 3 — English squeeze the throttle trigger and maintain a steady cutting speed.
• Do not overreach or cut above chest height.
• Follow the manufacturer’s sharpening and maintenance instructions for the saw chain.
• Only use replacement bars and chains specified by the manufacturer or the equivalent.
Do not operate a chain saw with one
hand. Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation.
A chain saw is intended for two-handed use.
Do not operate a chain saw when you are
fatigued. Fatigue causes carelessness. Be more cautious before rest periods and towards the end of your shift. Never operate a chain saw when you are tired or under the influence of medication, drugs, or alcohol.
Use safety footwear. Wear snug-fitting clothing, protective gloves, and eye, hearing, and head protection devices.
Heavy protective clothing may increase operator fatigue, which could lead to
heat stroke. During weather that is hot and humid, heavy work should be scheduled for early morning or late afternoon hours when temperatures are cooler.
Do not stand on any unstable surface while using the chain saw, that includes ladders, scaffolds, trees, etc.
chain saw at least 30 feet from the fueling point before starting the engine.
Do not allow other persons to be near the chain saw when starting or cutting with the chain saw.
Keep bystanders and animals out of the work area.
Do not start cutting until you have a clear
work area, secure footing, and a planned retreat path from the falling tree.
Keep all parts of your body away from the
saw chain when the engine is running.
Always carry the chain saw with the engine
stopped and the chain brake engaged, the
GENERAL SAFETY RULES guide bar and saw chain to the rear, and the muffler away from your body. When transporting the chain saw, use the appropriate guide bar scabbard.
Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
Shut off the engine before setting the chain
saw down. Do not leave the engine running unattended. As an additional safety precaution, apply the chain brake prior to setting down the saw.
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.
be alert for springback so that you will not be struck when the tension in the wood fibers is released.
Keep the handles dry, clean, and free of oil or fuel mixture.
Operate the chain saw only in well-ventilated areas.
Do not operate a chain saw in a tree unless you have been specifically trained to do so.
dangerous.
in the instruction manual and all maintenance, should be performed by competent chain saw service personnel. (For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and subsequently could cause the flywheel to burst.)
Always have a fire extinguisher available when using chain saw.
Use only the replacement guide bars and low
kickback chains specified for the saw.
Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for the saw.
The gas powered saw (or electrically powered saw) is classified by CSA as a
Class 1C (or Class 2C) saw. It is intended for infrequent use by homeowners, cottagers, and campers, and for such general applications as clearing, pruning, cutting firewood, etc. It is not intended for prolonged use. Prolonged periods of operation can cause circulatory problems in the user’s hands due to vibration. For such use, it may be appropriate to use a saw having an anti-vibration feature.
Save these instructions. Refer to them frequently and use to instruct other users. If you loan someone this product, loan them these instructions also.
SPECIFIC SAFETY RULES
WARNING:
The warnings, labels, and instructions found in this section of the operator’s manual are for your safety. Failure to follow all instructions may result in serious personal injury.
Do not cut vines and/or small underbrush (a diameter of less than 3 in.).
Muffler surfaces are very hot during and after
operation of the chain saw; keep all body parts away from the muffler. Serious burns may occur if contact is made with the muffler.
Always hold the chain saw with both hands
when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles.
Never let anyone use the chain saw who has not received adequate instructions in its
proper use. This applies to rentals as well as privately owned saws.
Page 4 — English
SPECIFIC SAFETY RULES saw chain is not contacting any object.
Wear snug-fitting clothing. Always wear heavy, long pants, boots, and gloves. Do not wear jewelry, short pants, sandals, or go barefoot. Do not wear loose fitting clothing, which could be drawn into the engine or catch the chain or underbrush. Wear overalls, jeans, or chaps made of cut-resistant material or ones that contain cut-resistant inserts. Secure hair so that it is above shoulder level.
Wear non-slip safety footwear and heavy-
duty gloves to improve your grip and to protect your hands.
Wear eye protection which is marked to comply with ANSI Z87.1, as well as hearing
and head protection, when operating this equipment.
Keep bystanders and animals out of the work
area. Do not allow other persons to be nearby during starting or cutting with the chain saw.
NOTE: The size of the work area depends on the job being performed as well as the size tree or workpiece involved. For example, felling a tree requires a larger work area than making other cuts (i.e., bucking cuts, etc.).
® anti-kickback nose guard
properly mounted on the guide bar to prevent rotational kickback.
Follow the sharpening and maintenance
instructions for the saw chain.
Never operate a chain saw that is damaged, improperly adjusted, or is not completely
and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released. If the saw chain moves at idle speed, the carburetor may need adjusting.
Refer to Adjusting the Carburetor in the
Maintenance section of this manual. If the saw chain still moves at idle speed after adjustment has been made, contact an authorized service center for adjustment and discontinue use until the repair is made.
REFUELING (DO NOT SMOKE!)
handle fuel with care. It is highly flammable.
Mix and store fuel in a container approved for gasoline.
or flames.
Select bare ground, stop the engine, and
allow it to cool before refueling.
sure and to keep fuel from escaping around the cap.
feet away from refueling site before starting engine.
Never attempt to burn off spilled fuel under any circumstances.
KICKBACK
Kickback is a dangerous reaction that can
lead to serious injury. Do not rely only on the safety devices provided with the saw. As a chain saw user, you must take special safety precautions to help keep your cutting jobs free from accident or injury. See the General Safety
Rules and Operation sections of this manual for added information on kickback and how to avoid serious personal injury.
Page 5 — English
SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
Safety Alert Indicates a potential personal injury hazard.
Read Operator’s Manual
Wear Eye, Hearing, and
Head Protection
To reduce the risk of injury, user must read and understand operator’s manual before using this product.
Wear eye protection with side shields marked to comply with ANSI Z87.1 as well as hearing and head protection when operating this equipment.
SAFE-T-TIP ® kickback.
® nose guard on the guide bar helps prevent
No Smoking No smoking, sparks, or open flame.
Operate With Two Hands Hold and operate the saw properly with both hands.
One Handed
Carbon Monoxide
Kickback
Do not operate the saw using only one hand.
Engines produce carbon monoxide which is an odorless, deadly poison. Do not operate in an enclosed area.
DANGER! Beware of kickback.
Bar Nose Contact
Wear Gloves
Gasoline and
Lubricant
Avoid bar nose contact.
Wear non-slip, heavy-duty protective gloves when handling the chain saw.
Use unleaded gasoline intended for motor vehicle use with an octane rating of 87 [(R + M)/2] or higher. This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle lubricant.
Keep Bystanders Away Keep all bystanders and animals at least 50 ft. away.
Page 6 — English
SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL MEANING
DANGER:
Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
WARNING:
Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION:
CAUTION:
Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
(Without Safety Alert Symbol) Indicates a situation that may result in property damage.
SERVICE
Servicing requires extreme care and knowledge and should be performed only by a qualified service technician. For service we suggest you return the product to your nearest AUTHORIZED SERVICE
CENTER for repair. When servicing, use only identical replacement parts.
WARNING:
To avoid serious personal injury, do not attempt to use this product until you read thoroughly and understand completely the operator’s manual.
If you do not understand the warnings and instructions in the operator’s manual, do not use this product. Call Ryobi customer service for assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes, which can result in severe eye damage. Before beginning power tool operation, always wear safety goggles, safety glasses with side shields, or a full face shield when needed. We recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye protection which is marked to comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
Page 7 — English
GLOSSARY OF TERMS
Bucking
The process of cross cutting a felled tree or log into lengths.
Chain Brake
A device used to stop the saw chain.
Chain Saw Power Head
A chain saw without the saw chain and guide bar.
Clutch
A mechanism for connecting and disconnecting a driven member to and from a rotating source of power.
Drive Sprocket or Sprocket
The toothed part that drives the saw chain.
Felling
The process of cutting down a tree.
Felling Back Cut
The final cut in a tree felling operation made on the opposite side of the tree from the notching undercut.
Front Hand Guard
A structural barrier between the front handle of a chain saw and the guide bar, typically located close to the hand position on the front handle, and sometimes employed as an activating lever for a chain brake.
Front Handle
The support handle located at or toward the front of the chain saw. This handle is for the left hand.
Guide Bar
A solid railed structure that supports and guides the saw chain.
Kickback
The backward or upward motion, or both, of the guide bar occurring when the saw chain near the nose of the top area of the guide bar contacts any object such as a log or branch, or when the wood closes in and pinches the saw chain in the cut.
Kickback (Pinch)
The rapid pushback of the saw which can occur when the wood closes in and pinches the moving saw chain in the cut along the top of the guide bar.
Kickback (Rotational)
The rapid upward and backward motion of the saw which can occur when the moving saw chain near the upper portion of the tip of the guide bar contacts an object, such as a log or branch.
Low-Kickback Chain
A chain that complies with the kickback performance requirements of ANSI B175.1 when tested on a representative sample of chain saws.
Normal Cutting Position
Those positions assumed in performing the bucking and felling cuts.
Notching Undercut
A notch cut in a tree that directs the tree’s fall.
Rear Handle
The support handle located at or toward the rear of the saw. It normally contains the throttle. This handle is for the right hand.
Reduced Kickback Guide Bar
A guide bar which has been demonstrated to reduce kickback significantly.
Replacement Saw Chain
A chain that complies with the kickback performance requirements of ANSI B175.1 when tested with specific chain saws. It may not meet the ANSI performance requirements when used with other saws.
SAFE-T-TIP ® Nose Guard
An attachment that may be provided on the end of the guide bar to prevent the chain at the end of the guide bar from contacting the wood.
Saw Chain
A loop of chain having cutting teeth that cut the wood, and that is driven by the motor and is supported by the guide bar.
Springpole
A small tree (sapling) or limb that is bent or trapped under tension. It may “spring back” rapidly when cut, causing a dangerous situation.
Page 8 — English
FEATURES
PRODUCT SPECIFICATIONS
Bar length:
RY10520 ................................................. 20 in.
RY10518 ................................................. 18 in.
Chain pitch ............................................. .325 in.
Chain gauge ........................................... .050 in.
Chain type ............................................ Standard
Drive sprocket ......................................... 7-tooth
Engine displacement ................................... 46cc
Engine power ................................... 2.5 HP min.
Idle engine speed ........2,600-3,400 r/min. (RPM)
Fuel tank capacity .................................. 19.4 oz.
Chain lubricant tank capacity ................. 11.8 oz.
Weight - No bar, chain, fuel or lubricant ... 10 lbs.
TRIGGER
RELEASE
CYLINDER
COVER
FRONT
HANDLE
FRONT HAND GUARD/
CHAIN BRAKE
CHAIN OIL
CAP
SAFE-T-TIP ®
PRIMER
BULB
CHOKE
LEVER
BAR
MOUNTING
NUTS
Page 9 — English
Fig. 1a
FEATURES
STARTER
GRIP
REAR
HANDLE
STARTER/FAN
HOUSING
FUEL CAP
IGNITION
SWITCH
THROTTLE
TRIGGER
Fig. 1b
KNOW YOUR CHAIN SAW
See Figures 1a - 1b.
The safe use of this product requires an understanding of the information on the product and in this operator’s manual as well as a knowledge of the project you are attempting.
Before use of this product, familiarize yourself with all operating features and safety rules.
CHOKE LEVER
The choke lever opens and closes the choke valve in the carburetor. Positions available include FULL
CHOKE and RUN.
FRONT HAND GUARD / CHAIN BRAKE
The chain brake is designed to quickly stop the chain from rotating. When the front hand guard/ chain brake is pushed toward the bar, the chain should stop immediately. The chain brake does not prevent kickback.
GUIDE BAR
The factory-equipped guide bar has a small radius tip that offers a somewhat lower kickback potential.
LOW KICKBACK SAW CHAIN
The low kickback saw chain helps minimize the force of a kickback reaction by preventing the cutters from digging in too deeply at the kickback zone.
PRIMER BULB
The primer bulb pumps fuel from the fuel tank to the car buretor.
SAFE-T-TIP
®
ANTI-KICKBACK NOSE
GUARD
The SAFE-T-TIP ® Anti-Kickback Nose Guard is an attachment provided on the end of the guide bar to prevent the chain on the end of the guide bar from contacting the wood.
THROTTLE TRIGGER
The throttle trigger is used for controlling chain rotation.
Page 10 — English
ASSEMBLY
UNPACKING
This product has been shipped completely assembled.
Carefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included.
WARNING:
Do not use this product if it is not completely assembled or if any parts appear to be missing or damaged. Use of a product that is not properly and completely assembled could result in serious personal injury.
Inspect the product carefully to make sure no breakage or damage occurred during shipping.
Do not discard the packing material until you have carefully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-800-860-4050 for assistance.
PACKING LIST
Chain Saw
Scabbard
Combination Wrench
2-Cycle Engine Lubricant
Case
Operator’s Manual
WARNING:
If any parts are damaged or missing do not operate this product until the parts are replaced.
Use of this product with damaged or missing parts could result in serious personal injury.
WARNING:
Do not attempt to modify this product or create accessories not recommended for use with this product. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.
NOTE: The chain saw has been fully factory tested.
It is normal to find some slight lubricant residue on the saw. Read and remove all hang tags and store with the Operator’s Manual.
OPERATION
WARNING:
Do not allow familiarity with this product to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.
WARNING:
Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing and head protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.
Page 11 — English
WARNING:
Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.
APPLICATIONS
You may use this product for the purposes listed below:
OPERATION
WARNING:
Always shut off engine before fueling. Never add fuel to a machine with a running or hot engine.
Move at least 30 ft. from refueling site before starting the engine. DO NOT SMOKE! Stay away from open flames or sparks. Failure to heed this warning could result in serious personal injury.
FUEL AND REFUELING
HANDLING THE FUEL SAFELY
WARNING:
Check for fuel leaks. If any are found, correct them before using the saw to prevent fire or burn injury.
Always handle fuel with care; it is highly flammable.
Always refuel outdoors and do not inhale fuel vapors.
Do not let gasoline or lubricant come in contact with skin.
Keep gasoline and lubricant away from the eyes.
If gasoline or lubricant comes in contact with the eyes, wash them immediately with clean water. If irritation is still present, see a doctor immediately.
Refer to Refueling in the Specific Safety Rules section of this manual for additional safety information.
MIXING THE FUEL
This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle lubricant. Pre-mix unleaded gasoline and 2-cycle engine lubricant in a clean container approved for gasoline.
This engine is certified to operate on unleaded gasoline intended for automotive use with an octane rating of 87 [(R + M) / 2] or higher.
Do not use any type of pre-mixed gasoline/lubricant from fuel service stations, this includes the pre-mixed gasoline/lubricant intended for use in mopeds, motorcycles, etc.
Use a high quality 2-cycle self-mixing lubricant for air-cooled engines. Do not use automotive lubricant or 2-cycle outboard lubricant.
Mix 2% lubricant into the gasoline. This is a 50:1 ratio.
Mix the fuel thoroughly and each time before fueling.
Mix in small quantities. Do not mix quantities larger than usable in a 30-day period. A 2-cycle lubricant containing a fuel stabilizer is recommended.
PREMIUM EXACT MIX™ (50:1)
GASOLINE
1 Gallon (US)
1 Liter
LUBRICANT
2.6 oz.
20 cc (20 ml)
OXYGENATED FUELS
DO NOT USE E85 FUEL. IT WILL VOID YOUR
WARRANTY.
NOTE: Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of oxygenates stated below are not covered under
warranty.
Ethanol. Gasoline containing up to 10% ethanol by volume (commonly referred to as E10) or 15% ethanol by volume (commonly referred to as E15) are acceptable. E85 is not.
Page 12 — English
OPERATION
FILLING THE FUEL TANK
See Figure 2.
Clean the surface around the fuel cap to prevent contamination.
Carefully pour the fuel mixture into the tank.
Avoid spillage.
Prior to replacing the fuel cap, clean and inspect the o-ring.
Immediately replace the fuel cap and hand tighten. Wipe up any fuel spillage.
NOTE: It is normal for the engine to emit smoke during and after the first use.
ADDING BAR AND CHAIN LUBRICANT
See Figure 3.
Use RYOBI Bar and Chain Lubricant. It is designed for chains and chain oilers, and is formulated to perform over a wide temperature range with no dilution required. Chain saw should use approximately one tank of lubricant per tank of fuel.
NOTE: Do not use dirty, used, or otherwise contaminated lubricants. Damage may occur to the oil pump, bar, or chain.
Carefully pour the bar and chain lubricant into the oil tank.
Fig. 2
Fig. 3
Page 13 — English
OPERATION
OPERATING THE CHAIN BRAKE
See Figures 4 - 5.
Check the operating condition of the chain brake prior to each use.
Engage the chain brake by rotating your left hand around the front handle, allowing the back of your hand to push the chain brake lever/hand guard toward the bar while the chain is rotating rapidly. Be sure to maintain both hands on the saw handles at all times.
Reset the chain brake back into the RUN position by grasping the top of the chain brake lever/hand guard and pulling toward the front handle until you hear a click.
WARNING:
If the chain brake does not stop the chain immediately, or if the chain brake will not stay in the run position without assistance, take the saw to an authorized service center for repair prior to use.
STARTING THE ENGINE
See Figures 6 - 11.
Starting the product differs depending on whether the engine is cold or warm.
BRAKE
POSITION
Fig. 4
RUN
POSITION
Fig. 5
STARTER
GRIP
WARNING:
Keep your body to the left of the chain line.
Never straddle the saw or chain, or lean over past the chain line.
Fig. 6
Place the chain saw on level ground and ensure that no objects or obstructions are in the immediate vicinity that could come in contact with the bar and chain.
Hold the front handle firmly with your left hand and put your right foot onto the base of the rear handle.
To start a cold engine:
IGNITION
SWITCH IN THE
RUN POSITION
RUN ( I ) position.
Make sure the chain brake is in the run position by pulling back on the lever/hand guard.
Fig. 7
FULL CHOKE position.
When the temperature is above 50°F, pull the starter grip until the engine attempts to start, but no more than 3 times. When the temperature is
Page 14 — English
OPERATION below 50°F, pull the starter grip until the engine attempts to start, but no more than 5 times.
RUN position.
NOTE: Allow the saw to run in this position
15-30 seconds, depending upon the temperature.
squeeze and release the throttle trigger to return the engine to idle after a total run time of at least 30 seconds.
CAUTION:
Failure to release partial throttle when chain brake lever is in the brake position will result in serious damage to the unit. Never squeeze and hold the throttle trigger while the chain brake is in the brake position.
To Start a Warm Engine:
RUN ( I ) position.
Make sure the chain brake is in the run position by pulling back on the lever/hand guard.
FULL CHOKE position then push immediately back to RUN position to set fast idle.
Pull starter grip until engine runs, but no more than 5 times. If engine does not start after 5 pulls, use cold engine starting procedure.
Squeeze and release the throttle trigger to return the engine to idle.
TRIGGER
RELEASE
RUN
POSITION
PRIMER BULB
Fig. 8
CHOKE
LEVER
Fig. 9
Fig. 10
Page 15 — English
THROTTLE
TRIGGER Fig. 11
OPERATION
STOPPING THE ENGINE
See Figures 12 - 13.
Release the throttle trigger and let the engine return to idle. To stop the engine, move the ignition switch to the STOP ( O ) position. Do not put the chain saw on the ground when the chain is still moving.
For additional safety, set the chain brake when the saw is not in use.
In the event that the ignition switch will not stop the saw, pull the choke lever out to the fully extended position ( FULL CHOKE ) and engage chain brake to stop the engine. If the ignition switch will not stop the saw when set to the STOP position, have the ignition switch repaired before using the chain saw again to prevent unsafe conditions or serious injury.
NOTE: When you are finished using the saw, always relieve tank pressure by loosening, then retightening, the chain oil and fuel caps. Allow the engine to cool before storing.
ADJUSTING IDLE SPEED
See Figure 14.
If the engine starts, runs, and accelerates, but will not idle, turn the idle speed screw “T” clockwise to increase idle speed.
If the chain turns at idle, turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain movement. If the saw chain still moves at idle speed, contact an authorized service center for adjustment and discontinue use until the repair is made.
IGNITION
SWITCH IN THE
STOP POSITION
BRAKE
POSITION
Fig. 12
Fig. 13
IDLE SPEED
SCREW “T”
Fig. 14
Page 16 — English
OPERATION
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain, or contact an authorized service center for adjustment and discontinue use until the repair is made. Serious personal injury may result from the saw chain turning at idle.
PULL AND PUSH
See Figure 15.
The reaction force of the saw is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the PULL when cutting on the bottom edge of the bar and the PUSH when cutting along the top edge.
NOTE: The chain saw has been fully factory tested. It is normal to find some slight oil residue on the saw.
WARNING:
KICKBACK occurs when the moving chain contacts an object at the upper portion of the tip of the guide bar or when the wood closes in and pinches the saw chain in the cut. Contact at the upper portion of the tip of the guide bar can cause the chain to dig into the object and stop the chain for an instant. The result is a lightning-fast reverse reaction which kicks the guide bar up and back toward the operator. If the saw chain is pinched along the top of the guide bar, the guide bar can be driven rapidly back toward the operator. Either of these reactions can cause loss of saw control, which can result in serious injury.
Do not rely exclusively upon the safety devices built into the saw. As a chain saw user, you should take steps to keep your cutting jobs free from accident or injury. See General Safety
Rules for more details.
PULL
PUSH
Page 17 — English
Fig. 15
OPERATION
KICKBACK PRECAUTIONS
See Figures 16 - 17.
Rotational kickback occurs when the moving chain contacts an object at the Kickback Danger Zone of the guide bar. The result is a lightning-fast reverse reaction, which kicks the guide bar up and back towards the operator. This reaction can cause loss of control, which can result in serious injury.
PREPARING FOR CUTTING
PROPER GRIP ON HANDLES
See Figure 18.
See General Safety Rules for appropriate safety equipment.
Wear non-slip gloves for maximum grip and protection.
Hold the saw firmly with both hands. Always keep your left hand on the front handle and your right hand on the rear handle so that your body is to the left of the chain line.
WARNING:
Never use a left-handed (cross-handed) grip or any stance that would place your body or arm across the chain line.
Maintain a proper grip on the saw whenever the engine is running. The fingers should encircle the handle and the thumb is wrapped under the handlebar. This grip is least likely to be broken by a kickback or other sudden reaction of the saw. Any grip in which the thumb and fingers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control.
PROPER GRIP
WARNING:
DO NOT operate the throttle trigger with your left hand and hold the front handle with your right hand. Never allow any part of your body to be in the chain line while operating a saw.
CHAIN
LINE
Page 18 — English
KICKBACK
DANGER ZONE
Fig. 16
ROTATIONAL
KICKBACK
Fig. 17
PROPER HAND GRIP
POSITION
IMPROPER GRIP
Fig. 18
OPERATION
PROPER CUTTING STANCE
See Figure 19.
WARNING:
Alway use the proper cutting stance described in this section. Never kneel when using the chain saw except when felling a tree as shown in figure 24. Kneeling could result in loss of sta bility and control of the saw resulting in serious personal injury.
Balance your weight with both feet on solid ground.
Keep left arm with elbow locked in a “straight arm” position to withstand any kickback force.
THUMB ON
UNDERSIDE OF
HANDLE BAR
CHAIN LINE
STRAIGHT
ARM
Fig. 19
WORK AREA PRECAUTIONS
See Figure 20.
Cut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.
Never allow children to operate the saw. Allow no person to use this chain saw who has not read this operator’s manual or received adequate instructions for the safe and proper use of this chain saw.
Keep everyone – helpers, bystanders, children, and animals, a SAFE DISTANCE from the cutting area. During felling operations, the safe distance should be a least twice the height of the largest trees in the felling area. During bucking operations, keep a minimum distance of 15 feet between workers.
Always cut with both feet on solid ground to prevent being pulled off balance.
Do not cut above chest height as a saw held higher is difficult to control against kickback forces.
Do not fell trees near electrical wires or buildings. Leave this operation for professionals.
Cut only when visibility and light are adequate for you to see clearly.
Fig. 20
BASIC OPERATING/CUTTING
PROCEDURES
Practice cutting a few small logs using the following technique to get the “feel” of using the saw before you begin a major sawing operation.
Take the proper stance in front of the wood with the saw idling.
Accelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.
Keep the engine at full throttle the entire time you are cutting.
Allow the chain to cut for you; exert only light downward pressure. Forcing the cut could result in damage to the bar, chain, or engine.
Release the throttle trigger as soon as the cut is completed allowing the engine to idle. Running
Page 19 — English
OPERATION the saw at full throttle without a cutting load can result in unnecessary wear to the chain, bar, and engine.
Do not put pressure on the saw at the end of the cut.
FELLING TREES
HAZARDOUS CONDITIONS
WARNING:
Do not fell trees during periods of high wind or heavy precipitation. Wait until the hazardous weather has ended.
When felling a tree, it is important that you heed the following warnings to prevent possible serious injury.
Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equipment, then cut them up.
PLANNED LINE
OF FALL
135° FROM
PLANNED
LINE OF FALL
PLANNED
LINE OF
FALL
135°
Check the tree for damaged or dead branches that could fall and hit you during felling.
Periodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction.
If the tree starts to fall in the wrong direction, or if the saw gets caught or hung up during the fall, leave the saw and save yourself!
PROPER PROCEDURE FOR TREE
FELLING
See Figures 21 - 24.
Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat.
Clear the path of safe retreat approximately 135° from the planned line of fall.
Consider the force and direction of the wind, the lean and balance of the tree, and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural line of fall.
Page 20 — English
BACK CUT
2 in.
135°
HINGE
2 in. OR 1/10 DIA
90°
PATH OF
SAFE RETREAT
45°
90°
PATH
OF SAFE
RETREAT
45°
Fig. 21
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
Fig. 22
OPERATION
Cut a notch about 1/3 the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at a right angle to the line of fall.
This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut.
Make the backcut level and horizontal, and at a minimum of 2 in. above the horizontal cut of the notch.
NOTE: Never cut through to the notch. Always leave a band of wood between the notch and back cut (approximately 2 in. or 1/10 the diameter of the tree). This is called “hinge” or
“hingewood.” It controls the fall of the tree and prevents slipping or twisting or shootback of the tree off the stump.
On large diameter trees, stop the back cut before it is deep enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over.
NOTE: When bucking or felling with a wedge, it may be necessary to remove the SAFE-T-TIP ® anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip immediately.
As tree starts to fall, stop the chain saw and put it down immediately. Retreat along the cleared path, but watch the action in case something falls your way.
WARNING:
Never cut through to the notch when making a back cut. The hinge controls the fall of the tree, this is the section of wood between the notch and backcut.
BACK CUT
WEDGE
REMOVING BUTTRESS ROOTS
See Figure 25.
A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots prior to felling. Make the horizontal cut into the buttress first, followed by the vertical cut. Remove the resulting loose section from the
Page 21 — English
HINGE
Fig. 23
Fig. 24
VERTICAL
CUT
LOOSE
SECTION
HORIZONTAL
CUT
Fig. 25
OPERATION work area. Follow the correct tree felling procedure as stated in Proper Procedure For Tree Felling after you have removed the large buttress roots.
BUCKING
See Figure 26.
Bucking is the term used for cutting a fallen tree to the desired log length.
KICKBACK
Support small logs on a saw horse or another log while bucking.
Keep a clear cutting area. Make sure that no objects can contact the guide bar nose and chain during cutting, this can cause kickback.
To avoid the danger, keep the SAFE-T-TIP ® anti-kickback device attached while cutting.
Refer to Kickback in the Specific Safety Rules section of this manual for more information.
During bucking operations, stand on the uphill side so that the cut-off section of the log cannot roll over you.
Sometimes it is impossible to avoid pinching
(with just standard cutting techniques) or difficult to predict which way a log will settle when cut.
BUCKING WITH A WEDGE
See Figure 27.
If the wood diameter is large enough for you to insert a soft bucking wedge without touching the chain, you should use the wedge to hold the cut open to prevent pinching.
NOTE: When bucking or felling with a wedge, you may need to remove the SAFE-T-TIP ® anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip.
WEDGE
Fig. 26
Fig. 27
Page 22 — English
OPERATION
BUCKING LOGS UNDER STRESS
See Figure 28.
Make the first bucking cut 1/3 of the way through the log and finish with a 2/3 cut on the opposite side. As you cut the log, it will tend to bend. The saw can become pinched or hung in the log if you make the first cut deeper than 1/3 of the diameter of the log.
Give special attention to logs under stress to prevent the bar and chain from pinching.
OVERBUCKING
See Figure 29.
Begin on the top side of the log with the bottom of the saw against the log; exert light pressure downward. Note that the saw will tend to pull away from you.
UNDERBUCKING
See Figure 30.
Begin on the under side of the log with the top of the saw against the log; exert light pressure upward. During underbucking, the saw will tend to push back at you. Be prepared for this reaction and hold the saw firmly to maintain control.
LOG SUPPORTED AT ONE END
FINISHING CUT
LOAD
1ST CUT 1/3 DIA
LOG SUPPORTED AT BOTH ENDS
1ST CUT 1/3 DIA
LOAD
FINISHING CUT Fig. 28
OVERBUCKING
Fig. 29
UNDERBUCKING
Page 23 — English
Fig. 30
OPERATION
LIMBING AND PRUNING
See Figures 31 - 32.
Work slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance.
Keep the tree between you and the chain while limbing.
Do not cut from a ladder. This is extremely dangerous. Leave this operation for professionals.
Do not cut above chest height. A saw held higher than chest height is difficult to control against kickback.
LOAD
SECOND CUT
FIRST CUT
1/3 DIAMETER
FINISHING CUT
Fig. 31
WARNING:
Never climb into a tree to limb or prune. Do not stand on ladders, platforms, a log, or in any position which can cause you to lose your balance or control of the saw.
When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight. This prevents stripping the bark from the main member.
• Underbuck the branch 1/3 through for your first cut.
• Overbuck the branch to drop it.
• Finish by cutting smoothly and neatly against the main member so the bark will grow back to seal the wound.
CUT LIMBS ONE AT A TIME AND LEAVE SUPPORT
LIMBS UNDER TREE UNTIL LOG IS CUT
Fig. 32
SPRINGPOLE
Fig. 33
WARNING:
If the limbs to be pruned are above chest height, hire a professional to perform the pruning.
CUTTING SPRINGPOLES
See Figure 33.
A springpole is any log, branch, rooted stump, or sapling which is bent under tension by other wood so that it springs back if the wood holding it is cut or removed. On a fallen tree, a rooted stump has a high potential of springing back to the upright position during the bucking cut to separate the log from the stump. Watch out for springpoles — they are dangerous.
Page 24 — English
WARNING:
Springpoles are dangerous and could strike the operator, causing the operator to lose control of the chain saw. This could result in severe or fatal injury to the operator.
MAINTENANCE
WARNING:
When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage.
RUN
POSITION
WARNING:
Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing and head protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts.
Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, lubricant, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which may result in serious personal injury.
LUBRICATION
All of the bearings in this product are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions.
Therefore, no further lubrication is required.
REPLACING THE GUIDE BAR AND
CHAIN
See Figures 34 - 43.
DANGER:
Never start the engine before installing the guide bar, chain, clutch cover, and clutch drum.
Without all these parts in place, the clutch can fly off or explode, exposing the user to possible serious injury.
GUIDE BAR
PLATE
Fig. 34
COMBINATION
WRENCH
BAR MOUNTING
NUTS
Fig. 35
CLUTCH
COVER
BAR MOUNTING
NUTS
Fig. 36
WARNING:
To avoid serious personal injury, read and understand all the safety instructions in this section.
Page 25 — English
MAINTENANCE
STOP “ O ” position before you work on the saw.
Make sure the chain brake is not set by pulling the chain brake lever/hand guard towards the front handle to the run position.
NOTE: When replacing the guide bar and chain, always use the specified bar and chain listed in the Bar and Chain Combinations section later in this manual.
Wear gloves when handling the chain and bar.
These components are sharp and may contain burrs.
Remove the bar mounting nuts using the combination wrench provided.
Remove the clutch cover and the outer guide bar plate.
Remove the bar and chain from the mounting surface.
CUTTERS CHAIN ROTATION
CHAIN DRIVE LINKS
Lay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over.
Place the chain drive links into the bar groove as shown.
Position the chain so there is a loop at the back of the bar.
Hold the chain in position on the bar and place the loop around the sprocket.
Fit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar.
NOTE: When placing the bar on the bar studs, ensure that the adjusting pin is in the chain tension pin hole.
Replace the outer guide bar plate ensuring that the bar pin groove is at the bottom with the upper and lower edges angled away from the guide bar.
CHAIN DRIVE
LINKS
Fig. 37
BAR
GROOVE
Fig. 38
Page 26 — English
MAINTENANCE
Fingertighten the bar mounting nuts. The bar must be free to move for tension adjustment.
Remove all slack from the chain by turning the chain tensioning screw clockwise until the chain seats snugly against the bar with the drive links in the bar groove.
Release the tip of the guide bar and turn the chain tensioning screw 1/2 turn clockwise.
Repeat this process until sag does not exist.
Hold the tip of the guide bar up and tighten the bar mounting nuts securely.
The chain is correctly tensioned when there is no sag on the underside of the guide bar, the chain is snug, but it can be turned by hand without binding.
Ensure that the chain brake is not set.
NOTE: If chain is too tight, it will not rotate. Loosen the bar nuts slightly and turn the tension adjuster
1/4 turn counterclockwise. Lift the tip of the guide bar up and retighten the bar nuts securely. Ensure that the chain will rotate without binding.
ADJUSTING
PIN
BAR STUDS
GUIDE BAR
PLATE
SPROCKET
CLUTCH
COVER
BAR
MOUNTING
NUTS
Fig. 39
CHAIN
TENSIONING
SCREW
Fig. 40
Page 27 — English
MAINTENANCE
ADJUSTING THE CHAIN TENSION
See Figures 44 - 46.
WARNING:
Never touch or adjust the chain while the engine is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain.
Make sure the bar mounting nuts are loosened to finger tight.
Turn the chain tensioning screw clockwise to tension the chain.
NOTE: A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug, and it can be turned by hand without binding.
Retension the chain whenever the flats on the drive links hang out of the bar groove.
NOTE: During normal saw operation, the temperature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately .050 in. out of the bar groove.
The tip of the combination wrench can be used as a guide to help determine the correct warm chain tension.
NOTE: New chains tend to stretch; check the chain tension frequently and tension as required.
CAUTION:
A chain tensioned while warm may be too tight upon cooling. Check the “cold tension” before next use.
FLATS ON DRIVE LINKS
Fig. 41
Fig. 42
Fig. 43
Fig. 44
Page 28 — English
MAINTENANCE
CHAIN MAINTENANCE
See Figures 47 - 48.
CAUTION:
Check that the switch is in the STOP “ O ” position before you work on the saw.
Use only a low-kickback chain on this saw. This fast- cutting chain provides kickback reduction when properly maintained.
For smooth and fast cutting, maintain the chain properly.
The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:
Improper filing angle of the side plate can increase the risk of severe kickback.
≈
.050 in.
≈ .050 in.
RAKER (DEPTH GAUGE) CLEARANCE
.025 in.
• Too low increases the potential for kick back.
• Not low enough decreases cutting ability.
If the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, have an authorized service center sharpen the chain.
NOTE: Inspect the drive sprocket for wear or damage when replacing the chain. If signs of wear or damage are present in the areas indicated, have the drive sprocket replaced by an authorized service center.
NOTE: If you do not fully understand the correct procedure for sharpening the chain after reading the instructions that follow, have the saw chain sharpened by an authorized service center or replace with a recommended low-kickback chain.
INSPECT
DRIVE
SPROCKET
Fig. 45
Fig. 46
Fig. 47
Fig. 48
Page 29 — English
MAINTENANCE
SHARPENING THE CUTTERS
See Figures 49 - 52.
Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform.
WARNING:
The saw chain is very sharp. Always wear protective gloves when performing maintenance to the chain to prevent serious personal injury.
Tension the chain prior to sharpening. Refer to
Adjusting The Chain Tension.
Use a 3/16 in. diameter round file and holder.
Do all of your filing at the midpoint of the bar.
Keep the file level with the top plate of the tooth.
Do not let the file dip or rock.
Using light but firm pressure. Stroke towards the front corner of the tooth.
Lift the file away from the steel on each return stroke.
Put a few firm strokes on every tooth. File all left hand cutters in one direction. Then move to the other side and file the right hand cutters in the opposite direction.
TOP PLATE
RIVET HOLE
HEEL
GULLET
CUTTING
CORNER
SIDE PLATE
DEPTH GAUGE
TOE
Fig. 49
Fig. 50
Fig. 51
CAUTION:
A dull or improperly sharpened chain can cause excessive engine speed during cutting, which may result in severe engine damage.
LEFT HAND
CUTTERS
WARNING:
Improper chain sharpening increases the potential of kickback.
WARNING:
Failure to replace or repair a damaged chain can cause serious injury.
RIGHT HAND
CUTTERS
Fig. 52
Page 30 — English
MAINTENANCE
TOP PLATE FILING ANGLE
See Figure 53.
T 30° – file holders are marked with guide marks to align file properly to produce correct top plate angle.
SIDE PLATE ANGLE
See Figure 54.
CORRECT 80° – Produced automatically if you use the correct diameter file in the file holder.
HOOK – “Grabs” and dulls quickly; increases the potential of KICKBACK. Results from using a file with a diameter too small or a file held too low.
BACKWARD SLOPE – Needs too much feed pressure; causes excessive wear to the bar and
TOP PLATE FILING ANGLE
30° chain. Results from using a file with a diameter too large or file held too high.
MAINTAINING DEPTH GAUGE
CLEARANCE
See Figure 55 - 57.
Maintain the depth gauge at a clearance of .025 in. Use a depth gauge tool for checking the depth gauge clearances.
Every time the chain is filed, check the depth gauge clearance.
Use a flat file and a depth gauge jointer to lower all gauges uniformly. Use a .025 in. depth gauge jointer. After lowering each depth gauge, restore original shape by rounding the front. Be careful not to damage adjoining drive links with the edge of the file.
Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was filed with the round file. Use care not to contact cutter face with flat file when adjusting depth gauges.
RAKER (DEPTH GAUGE) CLEARANCE
LESS THAN 30°
CORRECT
MORE THAN 30°
.025 in.
Fig. 55
DEPTH GAUGE JOINTER
Fig. 53 INCORRECT
SIDE PLATE FILING ANGLE
80°
FLAT FILE
Fig. 56
HOOK
CORRECT
BACKWARD SLOPE
RESTORE ORIGINAL
SHAPE BY ROUNDING
THE FRONT
INCORRECT Fig. 54
Page 31 — English
Fig. 57
MAINTENANCE
MAINTAINING THE GUIDE BAR
See Figure 58.
CAUTION:
Make sure the chain has stopped before you do any work on the saw.
Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life.
The bar should be cleaned every day of use and checked for wear and damage.
Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed with a file as soon as they occur.
A bar with any of the following faults should be replaced:
Wear inside the bar rails that permits the chain to lay over sideways
LUBRICATING HOLE
Fig. 58
MOUNTING
SCREW
SAFE-T-TIP ®
Fig. 59
Lubricate guide bars with a sprocket at their tip weekly. Using a grease syringe, lubricate weekly in the lubricating hole. Turn the guide bar and check that the lubrication holes and chain groove are free from impurities.
MOUNTING THE SAFE-T-TIP
®
NOSE
GUARD
See Figures 59 - 60.
Stop the engine and disconnect the spark plug wire.
® on the bar nose.
Fit the locking tab in the recessed slot in the guide bar.
Tighten the mounting screw with wrench until snug.
From the snug position, tighten the mounting screw an additional 3/4 of a turn using a wrench.
TIGHTEN 3/4
OF A TURN
MAINTAINING THE SAFE-T-TIP
®
NOSE
GUARD
See Figures 59 - 60.
CAUTION:
Fig. 60
Make sure the chain has stopped before you do any work on the saw.
WARNING:
Although the guide bar comes with a SAFE-
T-TIP ® antikickback device already installed, check the tightness of the mounting screw before each use.
Page 32 — English
MAINTENANCE
Use the following instructions to tighten the mounting screw of the nose guard. These are specially hardened screws. If you cannot install the screw tightly, replace both the screw and the SAFE-T-TIP ® before further operation.
NOTE: Do not replace the screw with an ordinary screw. Use only identical replacement parts from the manufacturer when replacing parts.
In addition to preventing chain contact with solid objects at the nose of the bar, the SAFE-T-TIP ® also helps keep the chain away from abrasive surfaces, such as the ground. Keep it on the right hand side of the bar where it will be between the chain and the ground during flush with ground cutting.
The mounting screw requires a 5/16 in. wrench (or adjustable wrench) to achieve the recommended torque of 35 to 45 in.lb. A torque within this range can be achieved by using the following method.
SCREW
CYLINDER
COVER
SCREWS
AIR FILTER
Fig. 61
From the snug position, tighten the screw an additional 3/4 of a turn using a wrench.
CLEANING THE AIR FILTER
See Figures 61 - 64.
For access to the air filter and carburetor area, loosen the three screws holding the cylinder cover.
AIR FILTER
RETAINING
SCREW
Fig. 62
FAN
HOUSING
BAFFLE
Lift the front of the cylinder cover past chain brake lever.
Before removing the air filter from the carburetor, blow or brush as much loose dirt and sawdust from around the carburetor and chamber as possible.
NOTE: Make sure to pull the choke rod out to keep the carburetor from being contaminated.
Position a flat screwdriver between the tabs and twist to release from the air filter base.
Choose one of the following cleaning options:
To lightly clean, tap the filter against a smooth, flat surface to dislodge most saw dust and dirt particles.
PRE-FILTER
STARTER ASSEMBLY
Fig. 63
After every 5 hours of operation, clean in warm soapy water, rinse, and let dry completely.
Replace with a new filter after every 25 hours of use.
NOTE: An alternate method is to clean the filter with compressed air. Always wear eye protection to avoid eye injury.
Reinstall air filter, making sure that tabs on air filter are located in channels on air filter bottom before tightening filter retaining screws.
Page 33 — English
MAINTENANCE
Clean the pre-filter every 5 hours of use or sooner, if required. Remove the cylinder cover, starter assembly, and the fan housing baffle for access to the pre-filter in the engine housing.
If you use an air hose for drying, blow through both sides of filter.
CAUTION:
Make sure the air filter is correctly placed in the air filter cover before reassembly. Never run the engine without the air filter, serious damage could result.
CLEANING THE STARTER UNIT
See Figure 65.
Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean of debris.
ADJUSTING THE CARBURETOR
See Figure 65 - 66.
Before adjusting the carburetor:
Use a brush or compressed air to clean the starter cover vents.
Cleaning the Air Fil-
ter in the Maintenance section of this manual.
Allow the engine to warm up prior to adjustment of engine idle speed.
WARNING:
Weather conditions and altitude may affect carburetion. Do not allow bystanders close to the chain saw while adjusting the carburetor.
Idle Speed Adjustment —The idle speed adjustment controls how much the throttle valve stays open when the throttle trigger is released. To adjust:
“T” clockwise to increase idle speed.
“T” counterclockwise to decrease idle speed.
STARTER COVER
VENTS
AIR FILTER
Fig. 64
Fig. 65
IDLE SPEED
SCREW “T”
Fig. 66
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Serious personal injury may result from the saw chain turning at idle.
Page 34 — English
MAINTENANCE
CLEANING THE ENGINE
See Figures 67 - 68.
Clean the cylinder fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the cylinder.
WARNING
Never run the saw without all the parts, including the clutch cover and starter housing, securely in place.
Because parts can fracture and pose a danger of thrown objects, leave repairs of the flywheel and clutch to factory trained authorized service center personnel.
NOTE: If you notice a power loss with the gaspowered tool, the exhaust port and muffler may be blocked with carbon deposits. These deposits may need to be removed to restore performance.
We highly recommend that only qualified service technicians perform this service.
CHECKING THE FUEL FILTER
See Figure 69.
Check the fuel filter periodically. If contaminated or damaged, have fuel filter replaced by an authorized service center.
REPLACING THE SPARK PLUG
See Figure 70.
This engine uses a Champion RCJ6Y with .025 in. electrode gap. Use an exact replacement and replace every 50 hours or more frequently, if necessary.
Loosen the spark plug by turning it counterclockwise with a wrench.
CLEAN
CYLINDER
FINS
CLEAN
FLYWHEEL FINS
Hand thread the new spark plug, turning it clockwise. Tighten securely with wrench.
NOTE: Be careful not to cross-thread the spark plug. Cross-threading will seriously damage the cylinder.
FUEL FILTER
Fig. 67
Fig. 68
Fig. 69
Fig. 70
Page 35 — English
MAINTENANCE
SPARK ARRESTOR
The spark arrestor must be cleaned or replaced every 50 hours or yearly to ensure proper performance of your product. Spark arrestors may be in different locations depending on the model purchased. Please contact your nearest service dealer for the location of the spark arrestor for your model.
INSPECTING AND CLEANING CHAIN
BRAKE
See Figures 71 - 72.
Remove the clutch cover and clean the chain brake components. Check wear on the brake band and replace if worn or deformed. The band thickness should not be less than 0.024 in., or worn halfway through.
Always keep the chain brake mechanism clean and lightly brush the linkage.
Always test the chain brake performance after cleaning. Refer to Operating Chain Brake for additional information.
Check the chain catcher and replace if
damaged.
CHAIN CATCHER
BRAKE BAND
CLEAN THE CHAIN BRAKE
CLUTCH
COVER
Fig. 71
LUBRICATE THE CHAIN
BRAKE LINKAGE
WARNING:
Even with daily cleaning of the mechanism, the dependability of a chain brake to perform under field conditions cannot be certified. Keep the
SAFE-T-TIP ® nose guard on the saw’s guide bar and use proper cutting techniques.
STORING THE PRODUCT
Clean all foreign material from the product. Store it in a well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts.
Fig. 72
Abide by all Federal and local regulations for the safe storage and handling of gasoline.
When storing 1 month or longer:
Drain all fuel from tank into a container approved for gasoline.
Run the engine until it stops. This will remove all fuel-lubricant mix that could become stale and leave varnish and gum in the fuel system.
Squeeze primer bulb several times to purge fuel from carburetor.
Drain all bar and chain lubricant from tank into a container approved for oil.
Always place the scabbard over the guide bar and chain before transporting or storing the unit.
Page 36 — English
MAINTENANCE
Emissions Parts
EMISSIONS MAINTENANCE SCHEDULE
Inspect
Before
Each Use
Clean Replace Clean Every
Every Every 25 Hours 25 Hours
5 Hours or Yearly or Yearly
Replace
Every
50 Hours
AIR FILTER ASSY
includes:
Filter Screen ......................................................X ............................X
CARBURETOR ASSY
includes:
Heat Dam
Gaskets
FUEL TANK ASSY
includes:
Fuel Lines ............................ X
Fuel Cap .............................. X
Fuel Filter
IGNITION ASSY
includes:
Spark Plug ........................................................................................................................................................X
CALL US FIRST
For any questions about operating or maintaining your product, call the Ryobi
®
Help Line!
Your product has been fully tested prior to shipment to ensure your complete satisfaction.
Page 37 — English
BAR AND CHAIN COMBINATIONS
Chain specifications: 0.0325 pitch, .05 in. chain gauge
Length of Bar
20 in.
18 in.
Guide Bar Part Number
310629001
310628001
Chain Part Number Drive Links
900920027
901430001
78 link
72 link
TROUBLESHOOTING
Problem Possible Cause
Engine will not start. [Make sure ignition switch is in the RUN ( l ) position.]
No spark.
Engine is flooded.
Solution
Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual.
With the ignition switch OFF, remove spark plug. Move choke lever to RUN position (pushed in completely) and pull starter cord 15 to 20 times. This will clear excess fuel from engine. Clean and reinstall spark plug. Set ignition switch to RUN ( l ) position. Push and fully release primer bulb 7 times. Pull starter three times with choke lever at RUN. If engine does not start, move choke lever to FULL CHOKE and repeat normal starting procedure.
If engine still fails to start, repeat procedure with a new spark plug.
Contact an authorized service center for carburetor adjustment.
Engine starts but will not accelerate properly.
Engine starts, then dies.
Engine starts but will not run properly at high speed.
Carburetor requires
“L” (Low Jet) adjustment.
Carburetor requires
“L” (Low Jet) adjustment.
Carburetor requires
“H” (High Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Contact an authorized service center for carburetor adjustment.
Engine does not reach full speed and/or emits excessive smoke.
Lubricant/fuel mixture incorrect.
Air filter is dirty.
Spark arrestor screen is dirty.
Carburetor requires
“H” (High Jet) adjustment.
Use fresh fuel and the correct 2-cycle lubricant mix ratio.
Clean air filter. Refer to Cleaning the Air Filter in the
Maintenance section of this manual.
Clean spark arrestor screen. Refer to Inspecting/Clean-
ing the Spark Arrestor Screen in the Maintenance section of this manual.
Contact an authorized service center for carburetor adjustment.
Page 38 — English
TROUBLESHOOTING
Problem Possible Cause
Engine starts, runs, and accelerates but will not idle.
Carburetor requires
adjustment to idle speed.
Chain tur ns at idle.
Carburetor requires
adjustment to idle speed.
Air leak in the intake system.
B a r a n d c h a i n running hot and smoking.
Chain oil tank empty.
Chain tension is too tight.
Oiler is not functioning.
Solution
Turn idle speed screw “T” clockwise to increase idle speed. Refer to Adjusting the Carburetor in the
Maintenance section of this manual.
Turn idle speed screw “T” counterclockwise to decrease speed. Refer to Adjusting the Carburetor in the Maintenance section of this manual.
Contact an authorized service center for a rebuild kit.
Oil tank should be filled every time fuel tank is filled.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Run at half throttle 30 to 45 seconds. Stop saw and check for lubricant dripping from SAFE-T-TIP ® and guide bar. If lubricant is present, the chain may be dull or bar may be damaged. If no lubricant is on the SAFE-T-TIP ® , contact an authorized service center.
Engine starts and runs, but chain is not rotating.
Chain brake is engaged.
Chain tension is too tight.
Guide bar and chain assembled incorrectly.
Guide bar and/or chain are damaged.
Drive sprocket teeth
damaged
Chain tensioning dial is difficult to turn.
Tip of guide bar is not raised.
Clutch cover lock knob is too tight.
Release chain brake. Refer to Operating the Chain
Brake in the Operation section of this manual.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Refer to Replacing the Guide Bar and Chain in the
Maintenance section of this manual.
Inspect guide bar and chain for damage.
Contact an authorized service center for drive sprocket replacement.
Raise tip of guide bar while rotating tension adjustment dial.
Press in the clutch cover lock knob and rotate counterclockwise to slightly loosen the clutch cover before attempting to adjust chain tension.
Page 39 — English
WARRANTY
LIMITED WARRANTY STATEMENT
Techtronic Industries North America, Inc., warrants to the original retail purchaser that this RYOBI
®
brand outdoor product is free from defect in material and workmanship and agrees to repair or replace, at Techtronic Industries
North America, Inc.’s, discretion, any defective product free of charge within these time periods from the date of purchase.
Three years if the product is used for personal, family or household use;
90 days, if used for any other purpose, such as commercial or rental.
This warranty extends to the original retail purchaser only and commences on the date of the original retail purchase.
Any part of this product found in the reasonable judgment of Techtronic Industries North America, Inc. to be defective in material or workmanship will be repaired or replaced without charge for parts and labor by an authorized service center for RYOBI
®
brand outdoor products (Authorized
Ryobi Service Center).
The product, including any defective part, must be returned to an authorized Ryobi service center within the warranty period. The expense of delivering the product to the service center for warranty work and the expense of returning it back to the owner after repair or replacement will be paid by the owner. Techtronic Industries North America, Inc.’s, responsibility in respect to claims is limited to making the required repairs or replacements and no claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any RYOBI
®
brand outdoor product. Proof of purchase will be required by the dealer to substantiate any warranty claim. All warranty work must be performed by an authorized service dealer.
This warranty is limited to ninety (90) days from the date of original retail purchase for any RYOBI
®
brand outdoor product that is used for rental or commercial purposes, or any other income-producing purpose.
This warranty does not cover any product that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as specified in this operator’s manual. This warranty does not apply to any damage to the product that is the result of improper maintenance or to any product that has been altered or modified. The warranty does not extend to repairs made necessary by normal wear or by the use of parts or accessories which are either incompatible with the RYOBI
®
brand outdoor product or adversely affect its operation, performance, or durability. In addition, this warranty does not cover:
A. Tune-ups – Spark Plugs, Carburetor, Carburetor Adjustments, Ignition, Filters
B. Wear items – Bump Knobs, Outer Spools, Cutting
Strings, Inner Reels, Starter Pulleys, Starter Ropes, Drive
Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades,
Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains
Techtronic Industries North America, Inc., reserves the right to change or improve the design of any RYOBI
®
brand outdoor product without assuming any obligation to modify any product previously manufactured.
ALL IMPLIED WARRANTIES ARE LIMITED IN DURATION
TO THE STATED WARRANTY PERIOD. ACCORDINGLY,
ANY SUCH IMPLIED WARRANTIES INCLUDING
MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR OTHERWISE, ARE DISCLAIMED IN
THEIR ENTIRETY AFTER THE EXPIRATION OF THE
APPROPRIATE TWO-YEAR, ONE-YEAR, OR NINETY-
DAY WARRANTY PERIOD. TECHTRONIC INDUSTRIES
NORTH AMERICA, INC.’S, OBLIGATION UNDER THIS
WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO
THE REPAIR OR REPLACEMENT OF DEFECTIVE PARTS
AND TECHTRONIC INDUSTRIES NORTH AMERICA,
INC., DOES NOT ASSUME OR AUTHORIZE ANYONE
TO ASSUME FOR THEM ANY OTHER OBLIGATION.
SOME STATES DO NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE
LIMITATION MAY NOT APPLY TO YOU. TECHTRONIC
INDUSTRIES NORTH AMERICA, INC., ASSUMES NO
RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL,
OR OTHER DAMAGES INCLUDING, BUT NOT LIMITED
TO, EXPENSE OF RETURNING THE PRODUCT TO AN
AUTHORIZED RYOBI SERVICE CENTER AND EXPENSE
OF DELIVERING IT BACK TO THE OWNER, MECHANIC’S
TRAVEL TIME, TELEPHONE OR TELEGRAM CHARGES,
RENTAL OF A LIKE PRODUCT DURING THE TIME
WARRANTY SERVICE IS BEING PERFORMED, TRAVEL,
LOSS OR DAMAGE TO PERSONAL PROPERTY, LOSS
OF REVENUE, LOSS OF USE OF THE PRODUCT, LOSS
OF TIME, OR INCONVENIENCE. SOME STATES DO NOT
ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL
OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
This warranty applies to all RYOBI
®
brand outdoor products manufactured by or for Techtronic Industries North America,
Inc., and sold in the United States and Canada.
To locate your nearest Authorized Ryobi Service
Center, dial 1-800-860-4050.
Page 40 — English
WARRANTY
THE FOLLOWING CALIFORNIA AIR RESOURCES BOARD (CARB) STATEMENT ONLY APPLIES TO MODEL
NUMBERS REQUIRED TO MEET THE CARB REQUIREMENTS.
TECHTRONIC INDUSTRIES NORTH AMERICA, INC., LIMITED WARRANTY STATEMENT FOR FEDERAL
AND CALIFORNIA EMISSION CONTROL SYSTEMS NON-ROAD AND SMALL OFF-ROAD ENGINES
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The U.S. Environmental Protection Agency (EPA), the California Air Resources Board
(CARB), and Techtronic Industries North America, Inc., are pleased to explain the
Emissions Control System Warranty on your 2010 model year non-road or small offroad engine. In California, new equipment that uses small off-road engines must be designed, built, and equipped to meet the state’s stringent anti-smog standards. In other states, new 2000 and later model year non-road engines must be designed, built, and equipped at the time of sale to meet the U.S. EPA regulations for small non-road engines. The non-road engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the first three years of engine use from the date of sale to the ultimate purchaser. Techtronic
Industries North America, Inc., must warrant the emission control system on your non-road or small off-road engine for the period of time listed above provided there has been no abuse, neglect, or improper maintenance of your non-road or small off-road engine.
Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, catalytic converters, fuel tanks, valves, filters, clamps, connectors, and other associated components. Also included may be hoses, belts and connectors, and other emission-related assemblies.
Where a warrantable condition exists, Techtronic Industries North America, Inc., will repair your non-road or small off-road engine at no cost to you, including diagnosis, parts, and labor performed at an authorized service center for RYOBI
®
brand outdoor products.
MANUFACTURER’S WARRANTY COVERAGE:
This product’s emissions control system is warranted for three years. If any emissionrelated part on your engine is defective, the part will be repaired or replaced by
Techtronic Industries North America, Inc., free of charge.
OWNER’S WARRANTY RESPONSIBILITIES
(a) As the non-road or small off-road engine owner, you are responsible for the performance of the required maintenance listed in your operator’s manual.
Techtronic Industries North America, Inc., recommends that you retain all receipts covering maintenance on your non-road or small off-road engine, but
Techtronic Industries North America, Inc., cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance. Any replacement part or service that is equivalent in performance and durability may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of Techtronic Industries North America, Inc.
(b) As the non-road or small off-road engine owner, you should be aware, however, that Techtronic Industries North America, Inc., may deny you warranty coverage if your non-road or small off-road engine or a part has failed due to abuse, neglect, improper maintenance, or unapproved modifications.
(c) You are responsible for presenting your non-road or small off-road engine to an authorized service dealer as soon as a problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact a Techtronic Industries North America, Inc., Customer Representative at 1-800-860-4050.
DEFECT WARRANTY COVERAGE REQUIREMENTS:
(a) The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.
(b) General Emissions Warranty Coverage. Techtronic Industries North America,
Inc., warrants to the ultimate purchaser and each subsequent purchaser that your non-road or small off-road engine is designed, built, and equipped at the time of sale to conform with all applicable regulations adopted by the California Air Resources
Board or the United States Environmental Protection Agency; and that it is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of three years from the date the non-road or small off-road engine is purchased by the initial purchaser.
(c) The warranty on emissions-related parts will be interpreted as follows: Any warranted part that is not scheduled for replacement as required in the Emissions
Maintenance Schedule and Warranty Parts List set forth below is warranted for three years. If any such part (including any part that is scheduled only for regular inspection) fails during the period of warranty coverage, it will be repaired or replaced at any
RYOBI
®
Authorized Service Center at no charge. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period. A statement to the effect of “repair or replace as necessary” would not reduce the period of warranty coverage. Any warranted part that is scheduled for replacement as required maintenance in the Emissions Maintenance Schedule and Warranty Parts List is warranted for the period of time prior to the first scheduled replacement point for that part. Any such part repaired or replaced under warranty is warranted for the remainder of the period prior to the first scheduled replacement point, and will be repaired or replaced at any RYOBI
®
Authorized Service Center for no charge until that replacement point is reached.
Techtronic Industries North America, Inc., shall remedy warranty defects at any authorized RYOBI
®
Authorized Service Center, including any distribution center that may be franchised to service the subject engines. Any diagnostic work done at a RYOBI
®
Authorized Service Center shall be free of charge to the owner if such work determines that a warranted part is defective. Any manufacturer-approved or equivalent replacement part may be used for any warranty maintenance or repairs on emission-related parts, and must be provided free of charge to the owner if the part is still under warranty. Techtronic Industries North America, Inc., is liable for damages to other engine components caused by the failure of a warranted part still under warranty.
Add-on or modified parts that are not exempted by the California Air Resource Board may not be used. The use of any non-exempted add-on or modified parts will be grounds for disallowing a warranty claim. Techtronic Industries North America, Inc., will not be liable to warrant failures of warranted parts caused by the use of a nonexempted add-on or modified part.
The California Air Resources Board’s Emission Warranty Parts List specifically defines the emission-related warranted parts. (EPA’s regulations do not include a parts list, but the EPA considers emission-related warranted parts to include all the parts listed below.) Techtronic Industries North America, Inc., will provide any documents that describe its warranty procedures or policies within five days upon request by the
California Air Resources Board.
EMISSIONS PARTS LIST
Emissions parts vary from product to product. Your emissions control system warranty applies to any of the following components that may be included on your product:
(1) Fuel Metering System
(i) Carburetor and internal parts (and/or pressure regulator or fuel injection system).
(ii) Air/fuel ratio feedback and control system.
(iii) Cold start enrichment system.
(iv) Fuel Tank.
(2) Air Induction System
(i) Controlled hot air intake system.
(ii) Intake manifold.
(iii) Air filter.
(3) Ignition System
(i) Spark Plugs.
(ii) Magneto or electronic ignition system.
(iii) Spark advance/retard system.
(4) Exhaust Gas Recirculation (EGR) System
(i) EGR valve body and carburetor spacer, if applicable.
(ii) EGR rate feedback and control system.
(5) Air Injection System
(i) Air pump or pulse valve.
(ii) Valves affecting distribution of flow.
(iii) Distribution manifold.
(6) Catalyst or Thermal Reactor System
(i) Catalytic converter.
(ii) Thermal reactor.
(iii) Exhaust manifold.
(7) Particulate Controls
(i) Traps, filters, precipitators, and any other device used to capture particulate emissions.
(8) Miscellaneous Items Used in Above Systems
(i) Electronic controls.
(ii) Vacuum, temperature, and time sensitive valves and switches.
(iii) Hoses, belts, connectors, and assemblies.
Techtronic Industries North America, Inc., will furnish with each new engine written instructions for its maintenance and use by the owner.
The Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. Category C=50 hours, B=125 hours, and
A=300 hours.
Page 41 — English
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