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OTHER SAFETY WARNINGS 

• Maintain the unit with care. Follow all maintenance instructions 

in this manual. 

• Do not perform maintenance procedures other than those 

described in this manual. All service, other than the maintenance 

procedures described in this manual, should be performed by an 

authorized service dealer. 

• Never remove, modify or make inoperative any safety device 

furnished with the unit. 

• Before inspecting, maintaining, cleaning, storing, transporting or 

replacing any parts on the unit: 

1. Stop the unit. Refer to Starting and Stopping
2. Make sure all moving parts have stopped.  
3. Allow the unit to cool. 
4. Disconnect the spark plug wire. 

• Secure the unit while transporting. 
• Never store the unit with fuel in the tank, inside a building where 

fumes may reach an open flame (pilot lights, etc.) or sparks 

(switches, electrical motors, etc.). 

• Store the unit in a dry place, secured or at a height to prevent 

unauthorized use or damage. Keep the unit out of the reach of 

children. 

• Never douse or squirt the unit with water or any other liquid. 

Keep handles dry and clean (free from debris, oil and grease). 

Clean the unit after each use. Refer to Cleaning and Storage. Do 

not use solvents or strong detergents. 

• Keep these instructions. Refer to them often and use them to 

instruct other users. If you loan this unit to others, also loan 

them these instructions. 

 

SAVE THESE INSTRUCTIONS

• Before setting the unit down, always make sure the engine is off 

and all moving parts have stopped. 

• If the unit strikes or becomes entangled with a foreign object, 

stop the unit immediately. Check for damage. If damaged, do 

not restart or operate the unit until it is repaired. Do not operate 

the unit with loose or damaged parts. 

• Turn the engine off and disconnect the spark plug for 

maintenance or repair. 

• Use only original equipment manufacturer (OEM) replacement 

parts and accessories for this unit. These are available from your 

authorized service dealer. Use of any other parts or accessories 

could lead to serious injury to the user, or damage to the unit, 

and void the warranty. 

• Keep the unit clean. Carefully remove vegetation and other 

debris that could block moving parts. 

• To reduce fire hazard, replace a faulty muffler and spark arrestor. 

Keep the engine and muffler free from grass, leaves, excessive 

grease or carbon build up. 

• If the unit starts to vibrate abnormally, stop the unit immediately. 

Inspect the unit for the cause of the vibration. Vibration is 

generally an indicator of trouble.

TRIMMER SAFETY 

• Only use the trimming line described in the Specifications section 

of this manual. Never use metal-reinforced line, wire, chain or 

rope. These can break off and become dangerous projectiles.  

• The cutting head shield must always be in place while operating 

the unit. 

• Do not operate the unit without both trimming lines extended 

and the proper line installed. Do not extend the trimming line 

beyond the length of the shield.

BRUSHCUTTER SAFETY 

• The blade guard must always be in place while operating the unit. 
• Always use the shoulder harness when operating a brushcutter. 
• Always keep the handle between the operator and the blade 

during operation. 

• Never operate the unit with the blade above waist level. 
• To avoid violent kickback, do not attempt to cut material larger 

than 1/2 inch (1.27 cm) in diameter. 

• Blade thrust may occur when the spinning blade contacts an 

object that it does not immediately cut. Blade thrust can be 

violent enough to propel the unit and/or operator in any 

direction, possibly causing a loss of control. Blade thrust can 

occur without warning if the blade snags, stalls or binds. This is 

more likely to occur in areas where it is difficult to see the 

material being cut. 

• The blade will continue to spin after the unit is turned off. A 

coasting blade can cause serious injury. Maintain control of the 

unit until all moving parts have stopped. 

• Do not sharpen the blade. Sharpening the blade can cause the 

tip of the blade to break off while in use. This can result in severe 

personal injury. Replace the blade if it is dull. 

• Do not operate the unit with a bent, cracked or dull blade. 

Replace bent, cracked or dull blades. 

• Do not use the blade for edging; severe personal injury to 

yourself or others may occur. 

• The blade may become very sharp from use. Always wear heavy 

gloves when handling, replacing or cleaning the blade.

Summary of Contents for TB272 BC

Page 1: ...769 21290 00 05 19 TB272 BC 2 Cycle Brushcutter Trimmer Operator s Manual IMPORTANT Read this manual thoroughly before using this product Follow all instructions SAVE THESE INSTRUCTIONS...

Page 2: ...y a safety WARNING symbol CAN result in serious injury to yourself or to others CAUTION Signals a MODERATE hazard Failure to obey a safety CAUTION symbol MAY result in property damage or injury to you...

Page 3: ...l in a clean well ventilated outdoor area where there are no sparks or flames DO NOT smoke Never operate the unit without the fuel cap securely in place Avoid creating a source of ignition for spilled...

Page 4: ...e unit clean Carefully remove vegetation and other debris that could block moving parts To reduce fire hazard replace a faulty muffler and spark arrestor Keep the engine and muffler free from grass le...

Page 5: ...has been proven that fuel containing greater than 10 ethanol will likely damage this engine and void the warranty ON OFF STOP CONTROL ON START RUN ON OFF STOP CONTROL OFF or STOP PRIMER BULB Push pri...

Page 6: ...oled 2 Cycle Displacement 27 cc 1 64 cu in Spark Plug Gap 0 025 in 0 635 mm Spark Plug Champion RDJ7J or equivalent plug Lubrication Fuel Oil Mixture Fuel Oil Ratio 40 1 Fuel Tank Capacity 14 oz 414 m...

Page 7: ...3 6 Turn the knob clockwise to tighten the coupler Fig 1 Removing the Attachment 1 Set the unit on a flat level surface 2 Turn the knob counterclockwise to loosen the coupler Fig 1 3 Press and hold th...

Page 8: ...p Hold the nut in place with a finger to keep it in the recess Tighten the bolt with a Phillips screwdriver but do not tighten it completely Fig 4 Repeat this step for each nut and bolt 5 Hold the uni...

Page 9: ...ng the Shoulder Strap 1 Put the shoulder strap over the operator s head and onto the left shoulder 2 Start the unit Refer to Starting and Stopping 3 Snap the clip onto the shoulder strap harness loop...

Page 10: ...he locking rod in place put the blade retainer on the output shaft with the flat surface against the output shaft bushing Fig 13 5 Screw the cutting head counterclockwise onto the output shaft Fig 13...

Page 11: ...ade Fig 16 6 Screw the nut onto the output shaft Fig 16 7 Tighten the nut counterclockwise with a wrench Fig 17 If using a torque wrench torque to 325 335 in lb 27 28 ft lb 37 38 N m If using a closed...

Page 12: ...ving the Cutting Head Shield 1 Unscrew the screws x3 on the cutting head shield with a Phillips screwdriver Fig 18 2 Store the parts for future use WARNING DO NOT install the cutting head shield when...

Page 13: ...t with a fuel additive such as STA BIL Fuel Stabilizer or an equivalent Add 0 8 oz 23 ml of fuel additive per gallon of fuel according to the instructions on the container NEVER add fuel additives dir...

Page 14: ...r to Position 1 Fig 20 3 Crouch in the starting position Fig 21 4 Press and hold the throttle lockout Fig 19 Squeeze and hold the throttle control Fig 19 NOTE Continue to SQUEEZE and HOLD the throttle...

Page 15: ...oulder strap Never use a dull blade If the blade becomes dull refer to Maintaining the Blade in the Maintenance section WARNING To avoid serious injury to the operator or others do not use the blade a...

Page 16: ...or fence posts ADJUSTING THE TRIMMING LINE LENGTH This unit is equipped with a bump head Trimming line can be released from the cutting head without stopping the engine To release more line lightly ta...

Page 17: ...oupler Fig 26 Maintaining the Trimming Line Hard surfaces such as sidewalks can cause the trimming line to wear down quickly or break Frequently check and adjust the trimming line length Refer to Adju...

Page 18: ...rom starting accidentally WARNING Wear protective clothing and observe all safety instructions to prevent serious personal injury REPLACING THE TRIMMING LINE Only use the trimming line described in th...

Page 19: ...g Split Line 1 Cut one 9 foot 2 7 m length of new split line trimming line 2 Insert one line end through one of the two holes in the inner reel Pull the line through the inner reel until about 4 inche...

Page 20: ...r by unscrewing the cover screw Fig 34 2 Remove the air filter from the air filter housing Fig 34 3 Wash the air filter in detergent and water Rinse the air filter thoroughly and allow it to dry 4 Lig...

Page 21: ...sonal injury Fig 36 Idle Speed Screw Fig 37 0 025 in 0 635 mm MAINTAINING THE SPARK PLUG 1 Stop the engine and allow it to cool Grasp the spark plug boot firmly and pull it from the spark plug 2 Clean...

Page 22: ...If this is not possible store the unit vertically with the engine at the top Long term Storage 1 Remove the fuel cap tip the unit and drain the fuel into an approved container Reinstall the fuel cap...

Page 23: ...l The idle speed is incorrect Adjust the idle speed The fuel is old over 30 days and or improperly mixed Drain the fuel tank and add fresh properly mixed fuel The air filter is dirty Clean or replace...

Page 24: ...ossessions and territories except those sold through Troy Bilt s authorized channels of export distribution Troy Bilt reserves the right to change or improve the design of any Troy Bilt Product withou...

Page 25: ...Desmalezadora desbrozadora de 2 tiempos Manual del Operador 769 21290 00 05 19 IMPORTANTE Lea este manual por completo antes de utilizar este producto Siga todas las instrucciones CONSERVE ESTAS INSTR...

Page 26: ...usted mismo u otras personas PUEDEN sufrir lesiones graves PRECAUCI N Indica un peligro de GRAVEDAD MODERADA Si no se respeta un s mbolo de seguridad de PRECAUCI N usted mismo u otras personas PUEDEN...

Page 27: ...DES A GASOLINA Almacene el combustible nicamente en recipientes dise ados espec ficamente y aprobados para el almacenamiento de dichos materiales Detenga siempre el motor y d jelo enfriar antes de lle...

Page 28: ...eg rese de que se hayan detenido todas las piezas m viles 3 Deje que la unidad se enfr e 4 Desconecte el cable de la buj a Sujete la unidad durante el transporte Nunca almacene la unidad con combustib...

Page 29: ...garant a APAGADO ENCENDIDO DE CONTROL DE PARADA ENCENDIDO ARRANQUE MARCHA APAGADO ENCENDIDO DE CONTROL DE PARADA APAGADO o PARADA BULBO DEL CEBADOR Presione por completo el bulbo del cebador lentamen...

Page 30: ...efrigerado por aire de 2 ciclos Desplazamiento 27 cc 1 64 pulgadas c bicas Separaci n de las buj as 0 025 pulgadas 0 635 mm Buj a de encendido Champion RDJ7J o buj a equivalente Lubricaci n Mezcla de...

Page 31: ...ara apretar el acoplador Fig 1 Extracci n del accesorio 1 Coloque la unidad en una superficie plana y nivelada 2 Gire la perilla en el sentido contrario a las agujas del reloj para aflojar el acoplado...

Page 32: ...Sostenga la tuerca en su lugar con un dedo para mantenerla en el embutimiento Apriete el perno con un destornillador Phillips pero no lo apriete completamente Fig 4 Repita este paso con cada tuerca y...

Page 33: ...idad Consulte Arranque y Parada 3 Calce el pasador a presi n sobre la correa de hombro presilla de enganche del arn s Fig 8 4 Ajuste la correa de hombro para adecuarla al operador Fig 9 Tire de la heb...

Page 34: ...4 Mientras sostiene la varilla de seguridad en su lugar coloque la retenci n de cuchilla sobre el eje de salida con la superficie plana contra el casquillo del eje de salida Fig 13 5 Atornille el cabe...

Page 35: ...ida con la superficie plana contra la cuchilla Fig 16 6 Atornille la tuerca sobre el eje de salida Fig 16 7 Ajuste la tuerca en sentido contrario a las agujas del reloj con una llave de tuercas Fig 17...

Page 36: ...del protector del cabezal de corte 1 Desenrosque los tornillos 3 del protector del cabezal de corte con un destornillador Phillips Fig 18 2 Guarde las piezas para usarlas en el futuro ADVERTENCIA NO...

Page 37: ...un aditivo para combustible como el estabilizador de combustible STA BIL u otro equivalente Agregue 0 8 onzas 23 ml de aditivo para combustible por gal n de combustible seg n las instrucciones del rec...

Page 38: ...lanca del estrangulador en la Posici n 1 Fig 20 3 Agacharse en la posici n de arranque Fig 21 4 Oprima y mantenga el bloqueo de acelerador Fig 19 Apriete y mantenga oprimido el control del acelerador...

Page 39: ...rsela No use nunca una cuchilla desafilada Si la cuchilla se desafila consulte Mantenimiento de la cuchilla en la secci n Mantenimiento ADVERTENCIA Para evitar lesiones graves al operador u otros no u...

Page 40: ...mo paredes o cercas AJUSTAR LA LONGITUD DE LA L NEA DE CORTE Esta unidad est equipada con un cabezal de impacto La l nea de corte puede salir del cabezal de corte sin necesidad de detener el motor Par...

Page 41: ...Fig 26 Mantenimiento del hilo de recorte Las superficies duras tales como aceras pueden hacer que el hilo de recorte se desgaste r pidamente o se corte Verifique con frecuencia y ajuste la longitud de...

Page 42: ...ig 27 Perno Perilla percusiva Cabezal de corte Mandril Carrete interior PROGRAMA DE MANTENIMIENTO Realice estos procedimientos de mantenimiento requeridos con la frecuencia establecida en la tabla Est...

Page 43: ...dos hilos para evitar que los mismos se traslapen NOTA Si no se enrolla el hilo en el sentido que se indica el cabezal de corte funciona de manera incorrecta 4 Inserte las dos extremos de 6 pulgadas d...

Page 44: ...Fig 34 NOTA Si se opera la unidad sin el filtro de aire y sin la cubierta del filtro de aire se ANULAR la garant a 7 Inserte los ganchos del alojamiento del filtro de aire dentro de las ranuras de la...

Page 45: ...roduzcan lesiones personales graves Fig 36 Tornillo de velocidad de ralent Fig 37 0 025 pulgadas 0 635 mm MANTENIMIENTO DE LA BUJ A 1 Detenga el motor y deje que se enfr e Sujete con firmeza la funda...

Page 46: ...cene la unidad en posici n horizontal Si esto no es posible almacene la unidad de manera vertical con el motor arriba Almacenamiento a largo plazo 1 Retire la tapa de combustible incline la unidad y d...

Page 47: ...nuevo bien mezclado La marcha en vac o no es la correcta Ajuste la velocidad de marcha en vac o El combustible est viejo tiene m s de 30 d as y o mal mezclado Vac e el tanque de combustible y eche co...

Page 48: ...rritorios excepto para aquellos vendidos a trav s de los canales autorizados de distribuci n de exportaciones de Troy Bilt Troy Bilt se reserva el derecho a cambiar o mejorar el dise o de cualquier Pr...

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