background image

STARTING AND STOPPING INSTRUCTIONS

BEFORE STARTING THE ENGINE

• Make sure the chain tension is at the desired setting. Refer to 

Adjusting the Chain Tension

in the 

Maintenance and

Repair

section.

• Make sure the bar-retaining nuts are tight to the guide bar cover. 

• Make sure the fuel tank is filled with fresh fuel. Refer to 

Oil and Fuel Information

. If the oil and fuel instructions are

not understood, do not attempt to fuel the unit!

• Make sure the bar lube reservoir is filled with bar and chain oil. Refer to 

Adding Bar and Chain Lubricant

in the

Assembly Instructions

section.

• Make sure the chain brake is disengaged by pulling the front hand guard / chain brake back toward the front handle

as far as possible. Refer to 

Testing the Chain Brake

in the 

Assembly Instructions

section.

• Make sure the immediate area is clear of any objects or obstructions that could come in contact with the guide bar

and chain. 

STARTING THE ENGINE

To help prevent accidental start-ups, this unit has a stop switch,
safety latch, throttle control lockout and a throttle control trigger that
must be used together to start the unit.

1. Move the stop switch down to the RUN position (Fig. 7).

2. Fully press and release the primer bulb 10 times, slowly (Fig. 7).

Some amount of fuel should be visible in the primer bulb. If fuel
cannot be seen in the bulb, press and release the bulb until fuel is
visible.

3. Move the red choke lever to 

Position 1

(Fig. 8).

4. Place the unit on a firm, flat surface. Crouch in the starting

position and hold the unit firmly, as shown (Fig. 9).

5. Hold down the safety latch and squeeze the throttle control

trigger. While continuing to squeeze both the safety latch and
throttle control trigger, press down the throttle control lockout with
the thumb. Then release the throttle control trigger. This will lock
the throttle into the wide open position.

6. Pull the starter rope 

5

times in a controlled and steady motion. 

NOTE:

This unit uses the AST starting system, which significantly
reduces the effort required to start the engine. You must pull
the starter rope out far enough to hear the engine attempt to
start. There is no need to pull the rope briskly - there is no
harsh resistance when pulling. Do not pull the rope to its
limit, as this may cause the rope to break. Do not let the
rope snap back. Hold the handle and let the rope rewind
slowly. Be aware that this starting method is vastly different
from (and much easier than) what  you may be used to.

7.

Keep the throttle control trigger locked.

Move the red choke

lever to 

Position 2

(Fig. 8).

8.

Keep the throttle control trigger locked.

Pull the starter rope 

3-5

times in a controlled and steady motion to start the engine.

9.

Keep the throttle control trigger locked.

Allow the engine to

warm up for 30-60 seconds.

10. Depress and release the throttle control trigger to idle the engine. 

11. Move the red choke lever to 

Position 3

(Fig. 8). The unit is now

ready for use.

IF...

The engine does not start, go back to step 2.  

IF...

The engine fails to start after a few attempts, move the red
choke lever to 

Position 3

and squeeze the throttle control

trigger. Pull the starter rope 

3-8

times in a controlled and

steady motion. The engine should start. If not, repeat.

IF...

The unit idles roughly, use a Phillips or standard screwdriver
to turn the idle adjustment screw (Fig. 10) 1/4 to 1/2 turn
clockwise or until the unit idles smoothly. 

IF...

The saw chain turns while the unit is idling, use a Phillips or
standard screwdriver to turn the idle adjustment screw (Fig.
10) counterclockwise until the saw chain stops and the unit
continues to idle. 

IF...

The engine starts and idles smoothly, begin the chain brake
test. Refer to 

Testing the Chain Brake

in the 

Assembly

Instructions

section.  

IF WARM...

If the engine is already warm, perform steps 7 - 11 to

start the unit.

STOPPING THE ENGINE

1. Release the throttle control trigger and allow the engine to return

to idle speed.

2. Move the stop switch up to the STOP position (Fig. 7).

NOTE:

It is normal for the chain to coast to a stop once the stop switch is in the STOP position.

NOTE:

For emergency stopping, push the chain brake lever / hand guard forward to engage the chain brake and then
move the stop switch up to the STOP position.

1

2 3

Stop Switch

Fig. 7

OIL AND FUEL INFORMATION

OIL AND FUEL MIXING INSTRUCTIONS

Old fuel and improperly mixed fuel are the two main reasons why the unit
may not run properly. Be sure to use fresh, clean unleaded gasoline and
quality synthetic 2-cycle air-cooled engine oil. Do not use automotive oil or
boat oil; these oils will damage the engine.  

Obtaining the Correct Fuel/Oil Mixture

Thoroughly mix the proper amount of 2-cycle engine oil with unleaded
gasoline in a separate fuel container (do not mix them directly in the
engine fuel tank). Use a 40:1 fuel/oil ratio. See the table for specific gas
and oil mixing ratios.

NOTE:

One gallon (3.8 liters) of unleaded gasoline mixed with one 3.2 oz.
(95 ml) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.

When mixing fuel, follow the instructions printed on the oil container. Always read and follow the safety rules relating to
fuel before fueling the unit.

NOTE:

Dispose of any old fuel/oil mix in accordance with federal, state and local regulations.

Using Blended Fuels

Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol or MTBE (ether). These alcohol-
blended fuels absorb water. As little as 1% water in the fuel can make fuel and oil separate, which leads to the
formation of acids during storage. 

If you choose to use a blended fuel, or its use is unavoidable, follow these precautions:

• Always use fresh fuel (less than 60 days old)

• Mix the fresh unleaded fuel with 2-cycle engine oil, as directed above

• Always agitate (shake) the fuel mix before fueling the unit

• Drain the fuel tank and run the engine dry before storing the unit

Using Fuel Additives

The bottle of 2-cycle oil that came with this unit contains a fuel additive that will help inhibit corrosion and minimize the
formation of gum deposits. Using the 2-cycle oil included with this unit is recommended.

If unavailable, use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as STA-BIL

®

Gas

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 directly to the unit's fuel tank.

NOTE:

Never use engine or carburetor cleaner products in the fuel tank or permanent damage can occur.

WARNING:

Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine

and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open
flames at a distance from the area.

WARNING:

Remove the fuel cap slowly to avoid injury from fuel spray. Never operate the unit without

the fuel cap securely in place.

CAUTION:

For proper engine operation and maximum reliability, pay strict attention to the oil and fuel

mixing instructions on the 2-cycle oil container. Using improperly mixed fuel can severely damage the engine.

WARNING:

Add fuel in a clean, well-ventilated outdoor area. Wipe up any spilled fuel immediately.

Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

MIXING RATIO - 40:1

UNLEADED GAS

2 CYCLE OIL

1 GALLON US

(3.8 LITERS)

3.2 FL. OZ.

(95 ml) 

1 LITER

25 ml

WARNING:

Only operate this unit in a well-ventilated outdoor area. Carbon monoxide exhaust fumes

can be lethal in a confined area.

This unit comes completely assembled. The saw chain may be loose on the guide bar; refer to 

Adjusting the Chain

Tension

in the 

Maintenance and Repair Instructions

section.

UNPACKING

• Carefully remove the product and any accessories from the box.

• 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 

1-800-828-5500

(U.S.) or 

1-800-668-1238

(Canada) for assistance.

ADDING BAR AND CHAIN LUBRICANT

The guide bar and saw chain require lubrication to minimize friction.
Never starve the guide bar and chain of lubricating oil. Running the
unit without enough oil will decrease cutting efficiency, shorten the
life of the saw chain, cause rapid dulling of the saw chain and
excessive wear to the guide bar from overheating. An insufficient
amount of lubricating oil is evidenced by smoke, guide bar
discoloration or pitch build-up.  

Fill the bar lube reservoir each time the fuel tank is filled. Only use bar
and chain oil that is formulated to perform over a wide range of
temperatures with no diluting required in the bar lube reservoir. Do
not use motor oil or any other petroleum-based oil.

NOTE:

This chain saw comes from the factory with the bar lube reservoir empty.  Use the bottle of bar and chain oil that
is included with the unit. 

1. Remove the bar lube reservoir cap (Fig. 4).

2. Carefully pour the bar and chain oil into the bar lube reservoir.

3. Replace the bar lube reservoir cap and tighten securely.

4. Wipe off excess oil.

NOTE:

Bar lube reservoirs are designed to keep oil slowly flowing onto the chain. This unit will use approximately one
tank of bar and chain oil for every tank of fuel. If the oil flow to the guide bar and chain is too much or too little,
refer to 

Adjusting the Automatic Oiler

in the 

Maintenance and Repair Instructions

section.

NOTE:

Do not use dirty, used or otherwise contaminated oils. Damage may occur to the guide bar or chain.

IMPORTANT!

Please dispose of oil properly. Consult your local waste authority for information regarding available

disposal options. 

FUELING THE ENGINE

This unit is designed to operate on a mixture of unleaded gasoline
and 2-cycle engine oil. Refer to 

Oil and Fuel Information 

for complete

mixing instructions and detailed fuel requirements.

1. Turn the unit on its side so that the fuel tank is facing up (Fig. 5).

2. Slowly unscrew and remove the fuel tank cap by turning it anti-

clockwise.

3. Slowly pour the proper fuel/oil mixture into the fuel tank until the

tank is full.

4. Replace the fuel tank cap and turn it clockwise to secure it tightly.

5. Wipe off any spilled fuel.

TESTING THE CHAIN BRAKE

Always test the chain brake before using the unit and periodically
during operation. Follow these instructions to make sure the chain
brake is working correctly:

1. Place the unit on a clear, firm and flat surface.

2. Pull the chain brake lever back to disengage the chain brake.

3. Start the unit. Refer to 

Starting and Stopping Instructions

. Be sure

to maintain a proper grip. Refer to 

Proper Grip on Handles

in the

Operating Instructions

section.

4. While the unit is running, squeeze the throttle control trigger to 1/3

throttle and then engage the chain brake by pushing the chain
break lever forward with the left hand (Fig. 6). 

The chain should stop moving abruptly.  If it does, immediately release the throttle control trigger, turn off the engine and
return the chain brake to the disengaged position. Refer to 

Starting and Stopping Instructions

If the chain does not stop when the chain brake is engaged, release the throttle control trigger, stop the engine and have
the unit serviced by an authorized service center.

ASSEMBLY INSTRUCTIONS

WARNING:

Make sure the bar lube reservoir is

always filled. Failure to fill the bar lube reservoir will
cause irreparable damage to the unit. 

Fig. 4

Bar Lube

Reservoir

Bar Lube

Reservoir Cap

Fig. 5

Fuel Tank

Cap

Fuel Tank

Fig. 6

Chain Brake

WARNING:

Make sure the stop switch is in the STOP position before inspecting, adjusting, fueling or

performing maintenance on any part of the unit. Failure to do so can result in serious personal injury.
Refer to 

Starting and Stopping Instructions

.

WARNING:

The chain brake must not move when the engine runs at idle speed. If it does move at

idle speed, refer to the 

Carburetor Adjustment

instructions in the 

Maintenance and Repair Instructions

section. Avoid contact with the muffler. A hot muffler can cause serious burns.

WARNING:

Never operate the unit without the guide bar and saw chain properly installed.

WARNING:

When activating the chain brake, do

so slowly and deliberately. Keep the saw chain from
touching anything; don’t let the saw tip forward. 

Primer Bulb

1

2

3

Fig. 8

Red Choke

Lever

Fig. 9

1

2

3

Fig. 10

Idle Adjustment Screw

Throttle

Control

Lockout

Throttle Control Trigger

Safety

Latch

4

Summary of Contents for TB5518

Page 1: ...tment to obtain a list of authorized service dealers near you Service on this unit both within and after the warranty period should only be performed by an authorized and approved service dealer When...

Page 2: ...nit with fingers on the throttle control trigger Only pull the starter rope when in the starting position The operator and unit must be in a stable position while starting the engine Refer to Starting...

Page 3: ...y SAFETY INFORMATION 26 25 5 27 9 12 21 11 4 15 24 1 GUIDE BAR 2 LOW KICKBACK SAW CHAIN 3 CHAIN TENSIONING SCREW 4 SPARK ARRESTER SCREEN 5 CHAIN BRAKE LEVER FRONT HAND GUARD 6 FRONT HANDLE 7 STARTER H...

Page 4: ...or air cooled engines along with a fuel additive such as STA BIL Gas Stabilizer or an equivalent Add 0 8 oz 23 ml of fuel additive per gallon of fuel according to the instructions on the container NEV...

Page 5: ...weight securely with both feet on solid ground Keep the left arm locked in a straight arm position to withstand any kickback force Fig 15 Keep all body parts to the left of the chain line Fig 15 Make...

Page 6: ...ndard screwdriver Turn the screw clockwise to decrease oil flow or turn the screw counterclockwise to increase oil flow Fig 39 Flats Fig 30 Approx 1 16 1 3 mm Fig 33 Fig 31 Fig 32 Fig 36 Fig 37 Fig 34...

Page 7: ...A guide bar with the following faults should be replaced Wear inside the guide bar rails that permits the chain to lay sideways Bent guide bar Cracked or broken rails Spread rails Lubricating the Gui...

Page 8: ...ventilated space where fuel vapors cannot reach sparks or open flames from water heaters electric motors or switches furnaces etc Never store the unit with fuel in the tank inside a building where fu...

Page 9: ...nt le Des informations suppl mentaires sont disponibles sur notre site web Pour un entretien ou une r paration veuillez appeler le service la client le pour obtenir une liste compl te des concessionna...

Page 10: ...se trouver dans une position stable sur un sol ferme lors du d marrage du moteur Consultez la section Instructions de d marrage et d arr t Portez toujours la tron onneuse par la poign e avant avec le...

Page 11: ...E AVANT 6 POIGN E AVANT 7 POIGN E DU D MARREUR 8 BOUGIE D ALLUMAGE 9 COUVERCLE DU FILTRE AIR 10 INTERRUPTEUR D ARR T 11 LOQUET DE SECURIT 12 BOUCHON DU R SERVOIR DE LUBRIFIANT POUR CHA NE 13 COUVERCLE...

Page 12: ...bien reviss le bouchon du r servoir d essence ATTENTION Pour assurer un bon fonctionnement et une fiabilit maximale du moteur suivez la lettre les instructions de m lange d huile et d essence indiqu e...

Page 13: ...ment sur le sol Gardez votre bras gauche toujours bien tendu afin de pouvoir encaisser la force d un rebond Fig 15 Gardez tout votre corps gauche de la ligne de coupe de la cha ne Fig 15 Assurez vous...

Page 14: ...31 Fig 32 Fig 36 Fig 37 Fig 34 Fig 35 AVERTISSEMENT Avant de v rifier de nettoyer ou d entretenir l appareil arr tez le moteur attendez que toutes les parties en mouvement se soient arr t es laissez...

Page 15: ...sur les c t s Un guide tordu Des rails fissur s ou cass s Des rails cart s Lubrifier l extr mit du pignon du guide cha ne REMARQUE Il n est pas n cessaire de retirer la cha ne coupante pour graisser l...

Page 16: ...l essence dans le r servoir l int rieur d un b timent o les vapeurs peuvent entrer en contact avec d ventuelles tincelles ou flammes nues Instructions pour l entreposage de longue dur e En plus des i...

Page 17: ...oyo al Cliente para obtener una lista de distribuidores de servicio autorizados de su localidad El mantenimiento y reparaci n de este equipo ya sea durante o despu s del per odo cubierto por la garant...

Page 18: ...golpear al operador o hacerle perder el equilibrio Fig 3 Contragolpe Esta sierra est aprobada por UL como una sierra de Clasificaci n 1C de acuerdo con la norma CSA Z62 1 03 Est dise ada para que los...

Page 19: ...a recalentamiento Cuando la cantidad de aceite del motor es insuficiente se nota por el humo la decoloraci n de la barra gu a o la acumulaci n de paso Llene el recipiente de lubricaci n de la barra ca...

Page 20: ...recipientes de aceite para motores de 2 tiempos El uso de un combustible mezclado indebidamente puede ocasionar serios da os al motor ADVERTENCIA A ada combustible en una zona exterior bien ventilada...

Page 21: ...se astille Despu s troce abajo para que los dos cortes se encuentren y evitar el pellizco Trozar troncos totalmente apoyados Cuando el tronco est apoyado a todo lo largo utilice el corte desde arriba...

Page 22: ...e que quede demasiado apretada al enfriarse Compruebe la tensi n en fr o antes del pr ximo uso Plancha de la barra gu a Tuercas de retenci n de la barra Ranura de la barra gu a Tornillo de regulaci n...

Page 23: ...tiempo Fig 54 4 Quite la buj a con una llave de cubo para buj as NO USE NINGUNA OTRA HERRAMIENTA 5 Compruebe la abertura de los electrodos con un calibrador de hoja La abertura debe ajustarse a 0 025...

Page 24: ...mal uso o la incompetencia para usar el producto Esta garant a limitada no deber cubrir a ninguna otra persona distinta al comprador original arrendatario original o la persona para la cual se compr e...

Reviews: