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7 — English

FUELING AND REFUELING THE POWER HEAD

WARNING:

Gasoline and its vapors are highly flammable and ex-
plosive. To prevent serious personal injury and property 
damage, handle it with care. Keep away from ignition 
sources and open flames, handle outdoors only, do not 
smoke and wipe up spills immediately.

FUEL MIXTURE

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. DO NOT mix quantities larger than 
usable in a 30-day period.
Recommended fuel: This engine is certified to operate on 
unleaded gasoline intended for automotive use.

NOTE: 

We recommend you use Ethanol Shield 2-cycle 

lubricant, PowerCare 2-cycle lubricant, or an equivalent 
high-quality synthetic 2-cycle  lubricant in this product. Mix 
at 2.6 oz. per gallon (US).
Do not use automotive lubricant or 2-cycle outboard 
 lubricant.

HIGH QUALITY 2-CYCLE ENGINE LUBRICANT

 

GASOLINE 

LUBRICANT

 

1.0 gal. (US) (3.8 liter) 

  2.6 oz. (76 ml)

 

2.5 gal. (US) (9.5 liter) 

6.4 oz. (189 ml)

FILLING TANK

  Clean surface around fuel cap to prevent contamination.

  Loosen fuel cap slowly. Rest the cap on a clean surface.

  Carefully pour fuel into the tank. Avoid spillage.

  Prior to replacing the fuel cap, clean and inspect the 

gasket.

  Immediately replace fuel cap and hand tighten. Wipe up 

any fuel spillage.

NOTE:

 It is normal for smoke to be emitted from a new 

engine after first use.

WARNING:

Always shut off engine before fueling. Never remove 
fuel cap or add fuel to a machine with a running or hot 
engine. Make sure the unit is sitting on a flat, level sur-
face and only add fuel outdoors. If the engine is hot, let 
the unit cool for at least five minutes before adding fuel. 
After fueling, immediately replace fuel cap and tighten 
securely. Move at least 30 ft. from refueling site before 
starting engine. Do not smoke and stay away from open 
flames and sparks! Failure to follow these instructions 
could result in a fire and cause serious personal injury.

ETHANOL-BLENDED FUELS

NOTICE:

Do not use E15 or E85 fuel in this product. It is a vio-
lation of federal law and will damage the unit and void 
your warranty. Only use unleaded gasoline containing 
up to 10% ethanol.

NOTE: 

To improve performance when using oxygenated 

fuels, we recommend the use of Ethanol Shield 2-cycle 
lubricant.

OPERATING THE POWER HEAD

See Figure 5.

WARNING:

Engine housing can become hot during power head opera-
tion. Do not rest or place your arm, hand, or any body part 
against the engine housing during power head operation. 
Only hold the power head with all body parts clear of engine 
housing. Extended contact with the engine housing could 
result in burns or other injuries.

WARNING:

Always position the unit on the operator’s right side. The 
use of the unit on the operator’s left side will expose the 
user to hot surfaces and can result in possible burn injury.

WARNING:

To avoid burns from hot surfaces, never operate unit with 
the bottom of the engine above waist level.

Hold the power head with your right hand on the rear handle 
and your left hand on the front handle. Keep a firm grip with 
both hands while in operation. Power head should be held at 
a comfortable position with the rear handle about hip height.  
See figure 5 for proper operation position with trimmer at-
tachment installed.
Always operate power head at full throttle. If debris becomes 
wrapped around the attachment, STOP THE ENGINE, dis-
connect the spark plug wire, and remove the debris. Pro-
longed use at partial throttle will result in lubricant dripping 
from the muffler.

WARNING:

Always hold the attachment away from the body keeping 
clearance between the body and the product. Any 
contact with the attachment cutting head can result in 
burns and/or other serious personal injury.

OPERATION

Summary of Contents for RY251PH

Page 1: ...and the operator s manual before using this product TABLE OF CONTENTS General Safety Rules 2 3 Specific Safety Rules 3 Symbols 4 Features 5 Assembly 5 6 Operation 6 8 Maintenance 8 10 Troubleshooting...

Page 2: ...je del cabezal motor E Knob bouton perilla F Positioning hole trou de positionnement orificio de posicionamiento G Attachment shaft arbre d accessoire eje del aditamento Fig 3 A Button bouton bot n B...

Page 3: ...de cebado D Throttle trigger g chette d acc l rateur gatillo del acelerador Fig 7 A Choke lever in FULL CHOKE position levier de volet de d part en position FULL CHOKE compl tement ouvert palanca del...

Page 4: ...aces Do not use on a ladder or unstable support Stable footing on a solid surface enables better control of the unit in unexpected situations Keep all parts of your body away from any moving part To a...

Page 5: ...r control until the blade has completely stopped rotating Replace any blade that has been damaged Always make sure blade is installed correctly and securely fastened before each use Failure to do so c...

Page 6: ...will display this symbol to warn of blade thrust Hot Surface To reduce the risk of injury or damage avoid contact with any hot surface Gasoline and Lubricant Use unleaded gasoline intended for motor v...

Page 7: ...product carefully to make sure no breakage or damage occurred during shipping n Do not discard the packing material until you have carefully inspected and satisfactorily operated the product n If any...

Page 8: ...the knob is fully tightened before operating equipment check it periodically for tightness during use to avoid serious personal injury REMOVING AN ATTACHMENT FROM THE POWER HEAD Stop the engine and di...

Page 9: ...urely Move at least 30 ft from refueling site before starting engine Do not smoke and stay away from open flames and sparks Failure to follow these instructions could result in a fire and cause seriou...

Page 10: ...ne runs no more than 6 pulls Set the choke lever to RUN NOTE In cooler environments additional pulls of the starter handle may be required with the choke lever in the FULL CHOKE position To Start a Wa...

Page 11: ...he idle speed screw counterclockwise to reduce the idle RPM and stop the cut ting attachment movement If the cutting attachment still moves at idle speed contact an authorized service dealer for adjus...

Page 12: ...E SCHEDULE Inspect For Clean Replace Replace Maintenance Damage Before Every Every 25 Hours Every Part Each Use 5 Hours or Yearly 50 Hours CATALYTIC MUFFLER ASSEMBLY X SPARK SCREEN X AIR FILTER ASSY i...

Page 13: ...r to Cleaning Air Filter Screen earlier in this manual Contact a qualified service center Clean or replace spark plug Reset spark plug gap Refer to Spark Plug Replacement earlier in this manual Engine...

Page 14: ...les pi ces br lantes Ne pas utiliser l outil sur une chelle ou un support instable Une bonne tenue et un bon quilibre permettent de mieux contr ler l outil en cas de situation impr vue Garder toutes l...

Page 15: ...lame continuant de tourner au d bray une fois que le moteur est arr t et la g chette rel ch e peut causer des blessures Garder le contr le de l outil jusqu ce que la lame soit compl tement immobilis e...

Page 16: ...symbole pour avertir des risques de ricochet Surface chaude Pour viter les risques de blessures ou de dommages viter tout contact avec les surfaces br lantes Essence et lubrifiant Utiliser de l essen...

Page 17: ...transport n Ne pas jeter les mat riaux d emballage avant d avoir soigneusement examin le produit et avoir v rifi qu il fonctionne correctement n Si des pi ces sont manquantes ou endommag es appeler le...

Page 18: ...Ins rer le boulon dans les trous de la poign e avant NOTE La t te du boulon s adapte dans le logement moul d un c t de la poign e R installer le crou oreilles Serrer fermement l crou papillon UTILISA...

Page 19: ...a poign e avant Garder une prise ferme sur les deux poign es pendant le fonctionnement Le bloc moteur doit tre tenu dans une position confortable la poign e arri re se trouvant peu pr s hauteur de la...

Page 20: ...st en position FULL CHOKE ouvert D marrage du moteur chaud Poser l outil sur un sol nu et plat Appuyer sur la poire d amor age environ 8 fois Mettre le levier du volet de d part en position RUN marche...

Page 21: ...ment du pare tincelles sur le mod le utilis R GLAGE DU RALENTI Voir la figure 9 AVERTISSEMENT L accessoire de coupe lame tournera lors du r glage du ralenti Porter tous les v tements de protection et...

Page 22: ...25 heures ou cada d entretien n est pas endommag fonctionnement chaque ann e 50 heures ENSEMBLE CATALYTIQUE DU SILENCIEUX X CRAN PARE TINCELLES X FILTRE AIR inclut cran filtrant X CARBURATEUR inclut...

Page 23: ...plus haut dans ce manuel Contacter un centre de r parations qualifi Nettoyer ou remplacer la bougie R gler l cartement de l lectrode Voir Remplacement de la bougie plus haut dans ce manuel Le moteur...

Page 24: ...oporte inestable Una postura estable sobre una superficie s lida permite un mejor control de la herramienta en situaciones inesperadas Mantenga todas las partes del cuerpo alejadas de toda pieza m vil...

Page 25: ...or o de soltarse el gatillo del acelerador Mantenga un control adecuado de la herramienta hasta que se detenga por completo la hoja de corte Reemplace toda cuchilla da ada Siempre aseg rese que la cuc...

Page 26: ...s productosautorizadosparausarseconcuchillamuestran este s mbolo de alerta sobre el contragolpe de la cuchilla Superficie caliente Para reducir el riesgo de lesiones corporales o da os materiales evit...

Page 27: ...dad del mismo que aparecen en este manual y en los manuales del operador de todos los accesorios que utiliza en este cabezal motor DISE O ERGON MICO El dise o de la producto permite un f cil manejo de...

Page 28: ...ero NOTA El perno de cabeza hexagonal cabe en el hueco de tal forma moldeado en un costado del mango Vuelva tuerca de mariposa Apriete firmemente la tuerca de mariposa FUNCIONAMIENTO ADVERTENCIA No pe...

Page 29: ...mano derecha en el mango trasero y coloque la mano izquierda en el mango delantero Sujete firmemente la unidad con ambas manos durante la operaci n Se recomienda sujetar el cabezal motor en una posici...

Page 30: ...iento NOTA En entornos m s fr os pueden necesitarse m s tirones del mango del arrancador con la palanca en la posici n de FULL CHOKE anegaci n m xima Para arrancar con el motor caliente Deposite la he...

Page 31: ...olasranurasdela tapa del filtro de aire en el los pestillos del alojamiento luego presiona la tapa hasta que quede firmemente enganchada ADVERTENCIA Al dar servicio a la unidad s lo utilice piezas de...

Page 32: ...cada 5 horas 25 horas de uso cada mantenimiento de usar la unidad de uso o cada a o 50 Horas CONJUNTO DE SILENCIADOR CATAL TICO X PANTALLA PARACHISPAS X CONJUNTO DEL FILTRO DE AIRE incluye Pantalla de...

Page 33: ...mpieza del filtro de aire pantalla previamente en este manual Comun quese con un centro de servicio calificado Limpie o reemplace la buj a seg n sea necesario Reajuste la separaci n interelectr dica d...

Page 34: ...NT OBTENIR LES PI CES DE REMPLACEMENT Les pi ces de remplacement peuvent tre achet es en ligne sur le site www ryobitools com ou par t l phone au 1 800 860 4050 Les pi ces de remplacement peuvent tre...

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