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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.

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

.

OPERATOR’S MANUAL

 

 

 

RY10520 / 20 in. 46cc Chain Saw

   

         

 

 

 

 

   

 

 

 

   

RY10518 / 18 in. 46cc Chain Saw

   

         

 

 

 

 

   

 

 

 

   

(ALL VERSIONS)

 

 

 

 

ENGINE/EVAP. FAMILY: *HCPS.0464AC

 

 

   

 

 

 

CONSERVER CE MANUEL POUR 

FUTURE RÉFÉRENCE

GUARDE ESTE MANUAL PARA 

 FUTURAS  CONSULTAS

SAVE THIS MANUAL FOR FUTURE REFERENCE

Summary of Contents for RY10518

Page 1: ...les risques de blessures l utilisateur doit lire et veiller bien comprendre le manuel d utilisation avant d employer ce produit Merci d avoir achet un produit Ryobi Su motosierra ha sido dise ada y fa...

Page 2: ...de de pi ces et r paration Pedidos de piezas y servicio Page arri re P g posterior This product has many features for making its use more pleasant and enjoyable Safety performance and dependability ha...

Page 3: ...while you are operating the saw Cut at high engine speeds Always cut with the engine running at full speed Fully squeeze the throttle trigger and maintain a steady cutting speed Do not overreach or c...

Page 4: ...chain saw service other than the items listed in the instruction manual and all maintenance should be performed by competent chain saw service personnel For example if improper tools are used to remo...

Page 5: ...e make sure the 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 bare foot Do not wear loos...

Page 6: ...se Guard The SAFE T TIP nose guard on the guide bar helps prevent kickback No Smoking No smoking sparks or open flame Operate With Two Hands Hold and operate the saw properly with both hands One Hande...

Page 7: ...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 fo...

Page 8: ...nches 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 portio...

Page 9: ...h 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...

Page 10: ...ain 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 C...

Page 11: ...ytested 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 UNPACKING This product has been shipped completely as sembled n...

Page 12: ...x unleaded gasoline and 2 cycle engine lubricant in a clean container approved for gasoline n This engine is certified to operate on unleaded gasoline intended for automotive use with an octane rating...

Page 13: ...engine to emit smoke during and after the first use Fig 2 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...

Page 14: ...11 Starting the product differs depending on whether the engine is cold or warm WARNING Keep your body to the left of the chain line Never straddle the saw or chain or lean over past the chain line n...

Page 15: ...ill 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 n Set the ignition switch to the RUN I positi...

Page 16: ...aired 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...

Page 17: ...e 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 u...

Page 18: ...o 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 n Maintain a proper grip on the saw whenever the en...

Page 19: ...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 n Always cut with both feet on solid ground to...

Page 20: ...ring the backcut to assure the tree is going to fall in the desired direction n 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...

Page 21: ...r 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...

Page 22: ...to Kickback in the Specific Safety Rules section of this manual for more information n During bucking operations stand on the uphill side so that the cut off section of the log cannot roll over you n...

Page 23: ...t 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...

Page 24: ...h 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 WARNING If the limbs to be pr...

Page 25: ...oleum based products penetrating oils etc come in contact with plastic parts Chemi cals can damage weaken or destroy plastic which may result in serious personal injury LUBRICATION Allofthebearingsint...

Page 26: ...d the outer guide bar plate n Remove the bar and chain from the mounting surface n Remove the old chain from the bar n Lay out the new saw chain in a loop and straighten any kinks The cutters should f...

Page 27: ...process until sag does not exist n 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...

Page 28: ...slack on the underside of the guide bar the chain is snug and it can be turned by hand without binding n Retension the chain whenever the flats on the drive links hang out of the bar groove NOTE Duri...

Page 29: ...r depth gauge clearance Too low increases the potential for kick back Not low enough decreases cutting ability n If the cutter teeth hit hard objects such as nails and stones or are abraded by mud or...

Page 30: ...r round file and holder Do all of your filing at the midpoint of the bar n Keep the file level with the top plate of the tooth Do not let the file dip or rock n Using light but firm pressure Stroke to...

Page 31: ...CORRECT HOOK FLAT FILE DEPTH GAUGE JOINTER Fig 56 RESTORE ORIGINAL SHAPE BY ROUNDING THE FRONT Fig 57 Fig 55 RAKER DEPTH GAUGE CLEARANCE 025 in MAINTENANCE chain Results from using a file with a diame...

Page 32: ...heringorburringofthebarrailsisanormalpro cess 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 n Wear inside the b...

Page 33: ...lding the cylinder cover n Activate chain brake n Lift the front of the cylinder cover past chain brake lever n Lift the back of the cylinder cover past handle n Before removing the air filter from th...

Page 34: ...buretor n Use a brush or compressed air to clean the starter cover vents n Clean the air filter Refer to Cleaning the Air Fil ter in the Maintenance section of this manual n Allow the engine to warm u...

Page 35: ...d 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...

Page 36: ...nal information n Check the chain catcher and replace if damaged WARNING Even with daily cleaning of the mechanism the dependability of a chain brake to perform under field conditions cannot be certif...

Page 37: ...ours 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...

Page 38: ...ter for carburetor adjustment Engine starts then dies Carburetor requires L Low Jet adjustment Contact an authorized service center for carburetor adjustment Engine starts but will not run proper ly a...

Page 39: ...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 r...

Page 40: ...e warranty does not extendtorepairsmadenecessarybynormalwearorbythe use of parts or accessories which are either incompatible with the RYOBI brand outdoor product or adversely affect its operation per...

Page 41: ...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...

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