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TABLE OF CONTENTS 

Service  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 
Safety  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 
Know Your Unit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 
Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 
Oil and Fuel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 
Starting and Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 
Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 
Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 
Cleaning and Storage  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 
Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 
Warranty  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

SERVICE

All information, illustrations, and specifications in this manual are based 

on the latest product information available at the time of printing. We 

reserve the right to make changes at any time without notice. 
The product may vary slightly from the illustrations contained in this 

manual. 
Copyright© 2019 MTD SOUTHWEST INC, All Rights Reserved.

SAFETY

SPARK ARRESTOR NOTE 

NOTE: For users on U.S. Forest Land and in the states of 

California, Maine, Oregon and Washington. All U.S. Forest Land 

and the state of California (Public Resources Codes 4442 and 

4443), Oregon and Washington require, by law that certain internal 

combustion engines operated on forest brush and/or grass-covered 

areas be equipped with a spark arrestor, maintained in effective 

working order, or the engine be constructed, equipped and 

maintained for the prevention of fire. Check with your state or local 

authorities for regulations pertaining to these requirements. Failure 

to follow these requirements could subject you to liability or a fine. 

This unit is factory equipped with a spark arrestor. If it requires 

replacement, contact your local service dealer to install the 

appropriate muffler assembly.

Read the operator’s manual and follow all warnings and safety 

instructions. Failure to do so can result in serious injury to the 

operator and/or bystanders.

 SYMBOL

MEANING

WARNING:

 Signals a SERIOUS hazard. 

Failure to obey 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 yourself or to others.

The purpose of safety symbols is to attract your attention to 

possible dangers. The safety symbols, and their explanations, 

deserve your careful attention and understanding. The safety 

warnings do not by themselves eliminate any danger. The 

instructions or warnings they give are not substitutes for proper 

accident prevention measures.

NOTE: Advises you of information or instructions vital to the 

operation or maintenance of the equipment.

DANGER:

 Signals an EXTREME hazard. 

Failure to obey a safety 

DANGER symbol WILL result in 

serious injury or death to yourself or to others.

DO NOT RETURN THIS UNIT TO THE RETAILER. PROOF OF 

PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE. 

For assistance regarding the assembly, operation or maintenance of 

the unit, please call 

1-800-828-5500 (in the United States) or 1-800-

668-1238 (in Canada). Additional information can be found at 

www.troybilt.com (in the United States) or www.troybilt.ca (in 

Canada). 
Warranty service is available through an authorized service center. 

To locate a service center in your area, please visit our website or 

call the number listed above. Service on this unit, both within and 

after the warranty period, should only be performed by an 

authorized and approved service center. When servicing, use only 

identical replacement parts.

WARNING:

 This product can expose you to 

chemicals including engine exhaust, which is known to the 

State of California to cause cancer, and carbon monoxide, 

which is known to the State of California to cause birth 

defects or other reproductive harm. For more information 

go to www.P65Warnings.ca.gov.

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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