Troy-Bilt TB465SS, RTB415CS User Manual
Operator’s Manual
4-Cycle Gasoline Trimmer
SUPER BRONCO TB415CS/
PONY TB465SS
SAVE THESE INSTRUCTIONS
For service call 1-800-828-5500 in the United States, or
1-800-668-1238 in Canada, to obtain a list of authorized
service dealers near you. For more details about your unit, visit
our website at www.troybilt.com.
DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF
PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.
THIS PRODUCT IS COVERED BY ONE OR MORE U.S.
PATENTS. OTHER PATENTS PENDING.
Service on this unit both within and after the warranty period
should be performed only by an authorized and approved
service dealer.
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.
Copyright© 2006 MTD SOUTHWEST INC, All Rights Reserved.
WARNING: When using the unit, you must follow the
safety rules. Please read these instructions before
operating the unit in order to ensure the safety of the
operator and any bystanders. Please keep these
instructions for later use.
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, ask your LOCAL SERVICE DEALER to install the
Accessory Part #791–180890 Spark Arrestor Kit.
CALIFORNIA PROPOSITION 65 WARNING
P/N 769-01954C (12/06)
TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . .2
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . .7
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Maintenance and Repair Instructions . . . . . . . . . . . . . . . .9
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E16
WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO
CAUSE CANCER, BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM.
2
READ ALL INSTRUCTIONS BEFORE OPERATING
• Read the instructions carefully. Be familiar with the controls
and proper use of the unit.
• Do not operate this unit when tired, ill, or under the influence
of alcohol, drugs, or medication.
• Children and teens under the age of 15 must not use the
unit, except for teens guided by an adult.
• All guards and safety attachments must be installed properly
before operating the unit.
• Inspect the unit before use. Replace damaged parts. Check
for fuel leaks. Make sure all fasteners are in place and
secure. Replace parts that are cracked, chipped, or
damaged in any way. Do not operate the unit with loose or
damaged parts.
• Carefully inspect the area before starting the unit. Remove
all debris and hard or sharp objects such as glass, wire, etc.
• Be aware of the risk of injury to the head, hands and feet.
• Clear the area of children, bystanders, and pets. At a
minimum, keep all children, bystanders, and pets outside a
50 feet (15 m.) radius; there still may be a risk to bystanders
from thrown objects. Bystanders should be encouraged to
wear eye protection. If you are approached, stop the unit
immediately.
• Use only 0.105 inch, 2.667 mm diameter original equipment
manufacturer replacement line. Never use metal-reinforced
line, wire or rope. These can break off and become
dangerous projectiles.
• Squeeze the throttle control and check that it returns
automatically to the idle position. Make all adjustments or
repairs before using unit.
SAFETY WARNINGS FOR GAS UNITS
• Store fuel only in containers specifically designed and
approved for the storage of such materials.
• Avoid creating a source of ignition for spilled fuel. Do not
start the engine until fuel vapors dissipate.
• Always stop the engine and allow it to cool before filling the
fuel tank. Never remove the fuel tank cap or add fuel when
the engine is hot. Never operate the unit without the fuel cap
securely in place. Loosen the fuel tank cap slowly to relieve
any pressure in the tank.
• Add fuel in a clean, well-ventilated outdoor area where there
are no sparks or flames. Remove the fuel cap slowly, and
only after the engine stops. Do not smoke while fueling.
Wipe up any spilled fuel from the unit immediately.
• Avoid creating a source of ignition for spilled fuel. Do not
start the engine until fuel vapors dissipate.
• Move the unit at least 30 feet (9.1 m) from the fueling source
and site before starting the engine. Do not smoke. Keep
sparks and open flames away from the area while adding
fuel or operating the unit.
WHILE OPERATING
• Never start or run the unit inside a closed room or building.
Breathing exhaust fumes can be fatal. Operate this unit only
in a well-ventilated outdoor area.
• Wear safety glasses or goggles that meet ANSI Z87.1
standards and are marked as such. Wear ear/hearing
protection when operating this unit. Wear a face or dust
mask if the operation is dusty.
• Wear heavy long pants, boots, gloves and a long sleeve
shirt. Do not wear loose clothing, jewelry, short pants,
sandals or go barefoot. Secure hair above shoulder level.
RULES FOR SAFE OPERATION
• IMPORTANT SAFETY INSTRUCTIONS •
WARNING: Gasoline is highly flammable, and its
vapors can explode if ignited. Take the following
precautions:
• The cutting attachment shield must always be in place while
operating the unit as a trimmer. Do not operate unit without
both trimming lines extended, and the proper line installed.
Do not extend the trimming line beyond the length of the
shield.
• This unit does not have a clutch. The cutting attachment
continues rotating when the engine is idling. If it does not,
have the unit adjusted by an authorized service technician.
• Adjust the handle to your size in order to provide the best
grip.
• Be sure the cutting attachment is not in contact with anything
before starting the unit.
• Use the unit only in daylight or good artificial light.
• Avoid accidental starting. Be in the starting position
whenever pulling the starter rope. The operator and unit must
be in a stable position while starting. Refer to
Starting/Stopping Instructions.
• Use the right tool. Only use this tool for its intended purpose.
• Do not overreach. Always keep proper footing and balance.
• Always hold the unit with both hands when operating. Keep a
firm grip on both handles or grips.
• Keep hands, face, and feet at a distance from all moving
parts. Do not touch or try to stop the cutting attachment
when it rotates.
• Do not touch the engine, gear housing or muffler. These
parts get extremely hot from operation, even after the unit is
turned off.
• Do not operate the engine faster than the speed needed to
cut, trim or edge. Do not run the engine at high speed when
not cutting.
• Always stop the engine when cutting is delayed or when
walking from one cutting location to another.
• If you strike or become entangled with a foreign object, stop
the engine immediately and check for damage. Do not
operate before repairing damage. Do not operate the unit
with loose or damaged parts.
• Stop the unit, switch the engine to off, and disconnect the
spark plug for maintenance or repair.
• Use only original equipment manufacturer replacement parts
and accessories for this unit. These are available from your
authorized service dealer. Use of any unauthorized parts or
accessories could lead to serious injury to the user, or
damage to the unit, and void your warranty.
• Keep unit clean of vegetation and other materials. They may
become lodged between the cutting attachment and shield.
• 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.
OTHER SAFETY WARNINGS
• Never store a fueled unit inside a building where fumes may
reach an open flame or spark.
• Allow the engine to cool before storing or transporting. Be
sure to secure the unit while transporting.
• Store the unit in a dry area, locked up or up high to prevent
unauthorized use or damage, out of the reach of children.
• Never douse or squirt the unit with water or any other liquid.
Keep handles dry, clean and free from debris. Clean after
each use, see Cleaning and Storage instructions.
• Keep these instructions. Refer to them often and use them to
instruct other users. If you loan someone this unit, also loan
them these instructions.
SAVE THESE INSTRUCTIONS
3
RULES FOR SAFE OPERATION
SYMBOL MEANING
• ON/OFF STOP CONTROL
ON / START / RUN
• WARNING - READ OPERATOR'S MANUAL
Read the operator’s manual(s) and follow all warnings
and safety instructions. Failure to do so can result in
serious injury to the operator and/or bystanders.
This operator's manual describes safety and international symbols and pictographs that may appear on this product.
Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.
• ON/OFF STOP CONTROL
OFF or STOP
SYMBOL MEANING
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used
in conjunction with other symbols or pictographs.
• WEAR EYE AND HEARING PROTECTION
WARNING: Thrown objects and loud noise can
cause severe eye injury and hearing loss. Wear eye
protection meeting ANSI Z87.1 standards and ear
protection when operating this unit. Use a full face
shield when needed.
• KEEP BYSTANDERS AWAY
WARNING: Keep all bystanders, especially
children and pets, at least 50 feet (15 m) from the
operating area.
• THROWN OBJECTS AND ROTATING CUTTER
CAN CAUSE SEVERE INJURY
WARNING: Do not operate without the cutting
attachment shield in place. Keep away from the
rotating cutting attachment.
• HOT SURFACE WARNING
Do not touch a hot muffler, gear housing or cylinder.
You may get burned. These parts get extremely hot
from operation. They remain hot for a short time after
the unit is turned off.
• UNLEADED FUEL
Always use clean, fresh unleaded fuel
• OIL
Refer to operator’s manual for the proper type of
oil.
• SHARP BLADE
WARNING: Sharp blade on cutting attachment
shield. To prevent serious injury, do not touch the
line cutting blade.
• CHOKE CONTROL
1. • FULL choke position
2. • PARTIAL choke position
3. • RUN choke position
4
Primer
Bulb
Oil Fill
Plug/
Dipstick
Choke
Lever
Spark Plug
Air Filter Cover
TB465SS
Cutting
Attachment
Shield
TB415CS
Line
Cutting
Blade
Cutting Attachment
Shield
Fuel
Cap
Throttle
Control
D-Handle
Cutting Attachment
Shaft Grip
On/Off Stop Control
Shaft
Housing
Starter Rope Grip
Line
Cutting
Blade
APPLICATIONS
As a trimmer:
• Cutting grass and light weeds
• Edging
• Decorative trimming around trees, fences, etc.
NOTE: The below illustration may differ slightly from
your unit. For example, the picture shows a straight
shaft. Your unit may have a curved shaft.
Muffler
Spark Arrestor
Cutting
Attachment
KNOW YOUR UNIT
Muffler Guard
5
ASSEMBLY INSTRUCTIONS
ADJUSTING THE D-HANDLE
1. Locate the wing nut on the D-Handle. Loosen the wing nut
enough to loosen the D-Handle (Fig. 6).
NOTE: Do not remove wing nut, washer, or bolt.
2. Rotate the D-Handle to the upright position on the front
side of the shaft housing (Fig. 6).
NOTE: The D-handle
should slant
towards the
powerhead of the
unit.
3. Hold the unit in the
operating position (Fig.
16). If necessary,
reposition the Dhandle to the location
that provides the best
grip.
4. Tighten the wing nut
until the D-Handle is
secure.
TB465SS
1. Slide the cutting attachment shield into the shield mount on
the cutting attachment. Align the screw holes in the shield
with the holes in the cutting attachment (Fig. 4).
Fig. 4
INSTALL CUTTING ATTACHMENT SHIELD
Use the following instructions if the cutting attachment shield
on your unit is not installed. Use only the instructions that apply
to the type of shaft and shield that your unit is equipped with.
TB415CS
1. Place the cutting attachment shield onto the shaft housing.
Be sure the guard mounting bracket slides into the slot on the
edge of the cutting shield. Rotate the shield into place,
counterclockwise. The holes in the guard mounting bracket
and cutting attachment shield will line up (Fig. 1).
2. From inside the cutting attachment shield, push the square bolt
through the hole until the threaded end protrudes through the
guard mounting bracket (Fig. 2).
3. Put the washer on the bolt, then screw the wing nut onto
the bolt and tighten. Figure 3 shows the installation
process from underneath the unit.
Fig. 1
Fig. 2
Shaft Housing
Fig. 3
(4) Screws
Guard
Mounting
Bracket
Cutting
Attachment
Shield
Cutting Attachment
Shield
Square
Blot
Fig. 5
2. Place a hex lock nut into one of the three recessed holes on
the top of the cutting attachment shield (Fig 5).
3. Install a screw into the hole from the bottom of the cutting
attachment shield and screw it into the nut installed in step
2 (Fig. 5). Do not tighten.
4. Repeat steps 2 and 3 until all three screws have been
started, then tighten securely.
WARNING: To prevent serious personal injury,
never operate the trimmer without the cutting
attachment shield in place.
Fig. 6
Wing Nut
Washer
Guard Mounting Bracket
6
OIL AND FUEL INFORMATION
WARNING: OVERFILLING OIL CRANKCASE MAY
CAUSE SERIOUS PERSONAL INJURY. Check and maintain
the proper oil level in the crank case; it is important and
cannot be overemphasized. Check the oil before each use
and change it as needed. See Changing the Oil.
RECOMMENDED OIL TYPE
Using the proper type and weight of oil in the crankcase is
extremely important. Check the oil before each use and
change the oil regularly. Failure to use the correct
oil, or using dirty oil, can cause premature engine
wear and failure. Use a high-quality SAE 30
weight oil of API (American Petroleum Institute)
service class SF, SG, SH.
ADDING OIL TO CRANKCASE: INITIAL USE
NOTE: This unit is shipped without oil. In order to avoid
damage to the unit, put oil in the crankcase before you
attempt to start the unit.
Your unit is supplied with one 3.04 fluid oz. (90 ml) bottle of
SAE 30 SF, SG, SH oil (Fig. 7).
NOTE: Save the bottle of oil. It
can be used to measure
the correct amount
during future oil
changes. See Changing
the Oil.
1. Unscrew the top of the
bottle of oil and remove the
paper seal covering the
opening. Replace the top.
Next, cut the tip off the
funnel spout (Fig. 7).
2. Place the unit on a flat level surface (Fig. 8).
3. Remove the oil plug / dipstick from the crankcase (Fig. 9).
4. Pour the entire bottle of oil into the oil fill hole (Fig. 9).
NOTE: Never add oil to the fuel or fuel tank.
5. Wipe up any oil that may have spilled and reinstall the oil
fill plug / dipstick.
Check oil before each use and change as needed. Refer to
Changing the Oil.
RECOMMENDED FUEL TYPE
Old fuel is the primary reason for improper unit performance.
Be sure to use fresh, clean, unleaded gasoline.
NOTE: This is a four cycle engine. In order to avoid damage
to the unit, do not mix oil with gasoline.
Definition of Blended Fuels
Today's fuels are often a blend of gasoline and oxygenates
such as ethanol, methanol or MTBE (ether). Alcohol-blended
fuel absorbs water. As little as 1% water in the fuel can make
fuel and oil separate or form acids when stored. Use fresh fuel
Fig. 7
Funnel
Spout
FUELING THE UNIT
1. Remove the fuel cap (Fig. 10).
2. Place the gas container’s spout into the fill hole on the fuel
tank (Fig. 10) and fill the tank.
NOTE: Do not overfill the tank.
3. Wipe up any gasoline that may have spilled.
4. Reinstall the fuel cap.
5. Move the unit at least 30 ft. (9.1 m) from the fueling source
and site before starting the engine.
NOTE: Dispose of the old gasoline in accordance to Federal,
State and Local regulations.
(less than 60 days old), when using alcohol-blended fuel.
Using Blended Fuels
If you choose to use a blended fuel, or its use is unavoidable,
follow recommended precautions:
• Always use fresh unleaded gasoline
• Use the fuel additive STA-BIL®or an equivalent
• Drain tank and run the engine dry before storing unit
Using Fuel Additives
The use of fuel additives, such as STA-BIL®Gas Stabilizer or
an equivalent, will inhibit corrosion and minimize the formation
of gum deposits. Using a fuel additive can keep fuel from
forming harmful deposits in the carburetor for up to six (6)
months. 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 gas tank.
Fig. 10
Fuel Cap
Fuel Tank
Gas Can Spout
Unleaded
Gasoline
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 fuel cap slowly to avoid injury from
fuel spray. Never operate the unit without the fuel cap
securely in place
.
Fig. 8
Oil Fill
Oil Fill Plug/Dipstick
Oil Fill Hole
Fig. 9
O-Ring
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.
7
STARTING INSTRUCTIONS
STOPPING INSTRUCTIONS
1. Release your hand from the throttle control. Allow the
engine to cool down by idling.
2. Put the On/Off Stop Control in the OFF (O) position.
Start/On (I)
Stop/Off (O)
Throttle Control
Starter Rope
Throttle Control
Fig. 11
Fig. 13
WARNING:
Operate this unit only in a well-ventilated
outdoor area. Carbon monoxide exhaust fumes can be lethal
in a confined area.
WARNING: Avoid accidental starting. Make sure you
are in the starting position when pulling the starter rope
(Fig. 13).
To avoid serious injury, the operator and unit must
be in a stable position while starting.
Make sure that any Add-On item is installed correctly and
secure before starting the unit.
STARTING AND STOPPING INSTRUCTIONS
1. Check the oil level in the crankcase. Refer to
Checking the Oil Level.
2. Fill the fuel tank with fresh, clean unleaded gasoline.
Refer to Fueling the Unit.
3. Make sure the On/Off Stop Control in the ON ( I )
position (Fig. 11).
4. Fully press and release the primer bulb 10 times,
slowly. Some amount of fuel should be visible in the
primer bulb and fuel lines (Fig. 12). If you can’t see
fuel in the bulb, press and release the bulb as many
times as it takes before you can see fuel in it.
5. Place the choke lever in Position 1 (Fig. 12).
6. Crouch in the starting position (Fig. 13), squeeze the
throttle control, and pull the starter rope briskly 5
times.
7. Place the choke lever in Position 2 (Fig. 14).
8. While squeezing the throttle control, pull the starter
rope briskly 1 to 4 times to start the engine.
9. Keep the throttle squeezed and allow the engine to
warm up for 15 to 30 seconds.
10. Place the choke lever in Position 3 (Fig. 15). The unit
is ready for use.
IF... the engine does not start, go back to step 4.
IF... the engine fails to start after a few attempts, place
the choke lever in Position 3 and squeeze the
throttle control. Pull the starter rope briskly 3 to 8
times. The engine should start. If not, repeat.
IF WARM...
If the engine is already warm, make sure the
On/Off Stop control is in the ON position and start
the unit with the choke lever in Position 2. After the
unit starts, move the choke lever to Position 3.
Primer Bulb
Choke Lever
Position 1
Fig. 12
Fig. 14
Fig. 15
Position 2
Position 3
8
FIXED LINE INSTALLATION
Always use original equipment
manufacturer 0.105 inch
(2.667 mm) replacement line. Lines
other than those specified may
make the engine overheat or fail.
To install the trimming line:
1. Insert each end of the
replacement line into the holes
on either side of retention
hook (Fig. 18).
2. Push the ends through until
they stick out of the sides of
the head (Fig. 19).
3. Pull the ends through making
sure that the ends are of equal
length and the middle of the
line is centered between the
insertion holes (Fig. 20).
4. If the ends are not of equal
length, push the longer end
back through the head part
way and pull the shorter end to
compensate. Repeat until
both ends are the same
length.
5. Push the trimmer line until it
lies flat against the cutting
head (Fig. 21). Make sure the
two lengths of cutting line are
of equal length. If they are
not, adjust until they are.
WARNING: Never use metal-reinforced line, wire,
chain, or rope. These can break off and become
dangerous projectiles.
WARNING: Always use the correct line length when
installing trimming line on the unit. If the two lengths of
cutting line are not of equal length, the unit may develop
a vibration.
HOLDING THE TRIMMER
Before operating the unit, stand in the
operating position (Fig. 16). Check for
the following:
•T
he operator is wearing eye protection
and proper clothing
• With a slightly-bent right arm, the
operator’s right hand is holding the
shaft grip
• The operator’s left arm is straight, the
left hand holding the handle
• The unit is at waist level
• The cutting attachment is parallel to
the ground and easily contacts the
grass without the need to bend over
TIPS FOR BEST TRIMMING RESULTS
• For best trimming results, operate unit at full throttle.
• Keep the cutting attachment parallel to the ground.
• Do not force the cutting attachment. Allow the tip of the line
to do the cutting, especially along walls. Cutting with more
than the tip will reduce cutting efficiency and may overload
the engine.
• Cut grass over 8 inches (200 mm) by working from top to
bottom in small increments to avoid premature line wear or
engine drag.
• Cut from right to left.
• Slowly move the trimmer into and out of the cutting area at
the desired height. Move either in a forward-backward or
side-to-side motion. Cutting shorter lengths produces the
best results.
• Trim only when grass and weeds are dry.
• The life of your cutting line is dependent upon:
- Proper adherence of explained trimming techniques
- What vegetation is cut
- Where vegetation is cut
For example, the line will wear faster when trimming against a
foundation wall as opposed to trimming around a tree. It is normal
for some line breakage to occur from regular use.
DECORATIVE TRIMMING
Decorative trimming is accomplished by removing all
vegetation around trees, posts, fences and more.
Rotate the whole unit so that the cutting attachment is at a 30°
angle to the ground (Fig. 17).
WARNING: Always wear eye, hearing, foot and body
protection to reduce the risk of injury when operating this
unit.
OPERATING INSTRUCTIONS
Fig. 16
Fig. 18
Fig. 20
Fig. 19
Fig. 21
Fig. 17
30°
9
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the
frequency stated in the table. These procedures should also be
a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special
tools or skills. If you are unsure about these procedures
take your unit to any non-road engine repair
establishment, individual or authorized service dealer.
NOTE: Maintenance, replacement, or repair of the emission
control devices and system may be performed by any
non-road engine repair establishment, individual or
authorized service dealer.
MAINTENANCE AND REPAIR INSTRUCTIONS
FREQUENCY MAINTENANCE REQUIRED SEE
Before starting engine
Fill fuel tank with fresh fuel
Check oil
Page 6
Page 9
Every 10 hours Clean and re-oil air filter Page 10
First change at 10 hours
Every 25 hours
Every 25 hours thereafter
Change oil
Change oil
Clean spark arrestor
Page 9
Page 9
Page 12
10 hours on new engine
Every 25 hours
Every 25 hours
Check rocker arm to valve
clearance and adjust
Check rocker arm to valve
clearance and adjust
Check spark plug
condition and gap
Page 11
Page 11
Page 12
CHECKING THE OIL LEVEL
The importance of checking and maintaining the proper oil
level in the crankcase cannot be overemphasized. Check oil
before each use:
1. Stop the engine and allow oil to drain into the crankcase.
2. Place the unit on a flat, level surface to get a proper oil
level reading.
3. Keep dirt, grass clippings and other debris out of the
engine. Clean the area around the oil fill plug/dipstick
before removing it.
4. Remove the oil fill plug/dipstick and wipe off oil. Reinsert it
all the way back in.
5. Remove the oil fill plug/dipstick and check the oil level. Oil
should be up to the top of the dipstick (Fig. 24).
6. If the level is low, add a small amount of oil to the oil fill
hole and recheck (Fig. 25). Repeat this procedure until the
oil level reaches the top of the dipstick.
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill plug/dipstick
when checking and changing the oil (Fig. 25).
CHANGING THE OIL
For a new engine, change the oil after the first 10 hours of
operation. Change the oil while the engine is still warm. The oil will
flow freely and carry away more impurities.
1. Unplug spark plug boot to prevent accidental starting.
2. Remove the oil fill plug/dipstick.
3. Pour the oil out of the oil fill hole and into a container by
tipping the unit to a vertical position (Fig. 26). Allow ample
time for complete drainage.
CAUTION: To prevent extensive engine wear and
damage to the unit, always maintain the proper oil level in
the crankcase. Never operate the unit with the oil level
below the bottom of the dipstick.
Top of Dipstick
O-Ring
Oil Fill Plug/Dipstick
Fig. 24
Full
Add 1.4-1.5 Oz.
(41-44 ml)
Fig. 25
Oil Fill Plug/Dipstick
Oil Fill Hole
O-Ring
WARNING: To prevent serious injury, never perform
maintenance or repairs with unit running. Always service
and repair a cool unit. Disconnect the spark plug wire to
ensure that the unit cannot start.
10
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation. It is
an important item to maintain. Failure to maintain your air filter
properly can result in poor performance or can cause
permanent damage to your engine.
1. Open the air filter cover. Push the tab on the right side of
the cover inward. Then pull the air filter cover out and to the
left (Fig. 28).
NOTE: It may be necessary to remove the fuel cap to
completely remove the air filter cover.
2. Remove the air filter (Fig. 28).
3. Wash the filter in detergent and water (Fig. 29). Rinse the
filter thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat the filter
(Fig. 30).
5. Squeeze the filter to spread and remove excess oil (Fig. 31).
6. Replace the filter (Fig. 32).
Fill Level
Fig. 27
MAINTENANCE AND REPAIR INSTRUCTIONS
Air Filter
Air Filter Cover
Tab
Fig. 28
4. Wipe up any oil residue on the unit and clean up any oil
that may have spilled. Dispose of the oil according to
Federal, State and local regulations.
5. Refill the crankcase with 3.04 fluid ounce (90 ml) of SAE 30
SF, SG, SH oil.
NOTE: Use the bottle and
spout saved from initial
use to measure the correct
amount of oil. The top of
the label on the bottle
measures approximately
3.04 ounces (90 ml) (Fig.
27). Check the level with
the dipstick. If the level is
low, add a small amount of
oil and recheck. Do not
overfill (Fig. 27).
6. Replace the oil fill
plug/dipstick.
7. Reconnect the spark plug
boot.
Fig. 26
NOTE: If the unit is operated
without the air filter, you will
VOID the warranty.
7. Reinstall the air filter cover.
Position the hooks on the left
side of the air filter cover into
the slots at the left side of the
back plate (Fig. 33).
NOTE: It may be necessary to
remove the fuel cap to reinstall
the air filter cover.
8. Swing the cover to the right
until the tab on the air filter
cover snaps into place in the
slot on the back plate (Fig. 33).
9. Replace the fuel cap if it was removed.
Fig. 29
Fig. 30
Fig. 31
Fig. 32
Back Plate Slot
Slots
Back Plate
Air Filter
Air Filter Cover
Tab
Fig. 33
CAUTION:
Wear gloves to prevent injury when
handling the unit.
WARNING: To avoid serious personal injury, always
turn the unit off and allow it to cool before you clean or
service it.
11
MAINTENANCE AND REPAIR INSTRUCTIONS
CARBURETOR ADJUSTMENT
The idle speed of the engine is
adjustable. An idle adjustment
screw is reached though a hole
in the top of the engine cover
(Fig. 34).
NOTE: Careless adjustments
can seriously damage
your unit. An authorized
service dealer should
make carburetor
adjustments.
Check Fuel
Old fuel is usually the reason for
improper unit performance.
Drain and refill the tank with fresh fuel prior to making any
adjustments. Refer to Oil and Fuel Information.
Clean Air Filter
The condition of the air filter is important to the operation of the
unit. A dirty air filter will restrict air flow. This is often mistaken
for an out of adjustment carburetor. Check the condition of the
air filter before adjusting the idle speed screw. Refer to Air
Filter Maintenance.
Adjust Idle Speed Screw
If, after checking the fuel and cleaning the air filter, the engine
still will not idle, adjust the idle speed screw as follows:
1. Start the engine and let it run at a high idle for a minute to
warm up. Refer to Starting/Stopping Instructions.
2. Release the throttle trigger and let the engine idle. If the
engine stops, insert a small phillips or flat blade screwdriver
into the hole in the air filter/muffler cover (Fig. 34). Turn the
idle speed screw in, clockwise, 1/8 of a turn at a time (as
needed) until the engine idles smoothly.
Checking the fuel, cleaning the air filter, and adjusting the idle
speed should solve most engine problems. If not and all of the
following are true:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.
ROCKER ARM CLEARANCE
This requires disassembly of the engine. If you feel unsure or
unqualified to perform this, take the unit to an authorized
service center.
NOTE: Inspect the valve to rocker arm clearance with a feeler
gauge after the first 10 hours of operation and then
every 25 hours of operation thereafter.
• The engine must be cold when checking or adjusting the
valve clearance.
• This task should be performed inside, in a clean, dust free
area.
1. Remove the muffler cover by pressing down on it,
separating it from the engine cover. Using a flat blade
screwdriver, disengage the middle and front tabs and slots
first. The cover will hinge off from the rear tab (Fig. 35).
2. Remove the two (2) screws on top of the engine cover with a
Flat-head or T-25 Torx screwdriver (Fig. 36).
3. Remove the screw behind the engine cover (Fig. 37).
4. Disconnect the spark plug wire.
5. Clean dirt from around the spark plug. Remove the spark
plug from the cylinder head by turning a 5/8 in. socket
counterclockwise.
6. Remove the engine cover (Fig. 36).
Idle Adjustment Screw
Fig. 34
7. Clean dirt from around the rocker arm cover. Remove the
screw holding the rocker arm cover with a large flat blade
screwdriver or Torx T-25 bit (Fig. 38). Remove the rocker
arm cover and gasket.
8. Pull the starter rope slowly to bring the piston to the top of its
travel, (known as top dead center). Check that:
• The piston is at the top of its
travel while looking in the
spark plug hole (Fig. 38)
• Both rocker arms move freely,
and both valves are closed
If these statements are not true,
repeat this step.
9. Slide the feeler gauge between
the rocker arm and the valve
return spring. Measure the clearance between the valve stem and
rocker arm (Fig. 39). Measure both
the intake and exhaust valves.
The recommended clearance for
the intake and exhaust is .003 –
.006 in. (.076 – 0.152 mm). Use a
standard automotive feeler gauge at
.005 (0.127mm). The feeler gauge
should slide between the rocker arm
and valve stem with a slight amount
of resistance, without binding. Figure
40 shows how to measure the
clearance.
Fig. 35
Engine Cover
Front Slot
Front Tab
Middle Tab
Middle Slot
Rear Slot
and Tab
Remove Screws
Engine Cover
Fig. 36
Muffler
Top View Of The Engine
Screw
Fig. 37
Rocker
Arm
Cover
Fig. 38
Spark
Plug
Hole
WARNING: To prevent serious personal injury, make
sure the cutting attachment has stopped rotating before
you turn it off and set it down.
WARNING: The cutting attachment may spin during idle
speed adjustments. Wear protective clothing and observe all
safety instructions to prevent serious personal injury.
12
MAINTENANCE AND REPAIR INSTRUCTIONS
WARNING: To avoid serious personal injury, always
turn your unit off and allow it to cool before you clean or
service it.
10. If the clearance is not within specification:
a. Turn the adjusting nut using a 5/16 inch (8 mm) wrench or
nut driver (Fig. 40).
• To increase clearance, turn the adjusting nut
counterclockwise.
• To decrease clearance, turn the adjusting nut clockwise.
b. Recheck both clearances, and adjust as necessary.
11. Reinstall the rocker arm cover using a new gasket. Torque
the screw to 20–30 in•lb (2.2–3.4 N•m).
12. Reinstall the engine cover. Check alignment of the cover
before tightening the screws. Tighten screws.
13. Reinstall the muffler cover. Slip the rear tab on the muffler
cover into the engine cover rear slot. Then slide the remaining
slots into the tabs until they snap into place (Fig. 31).
14. Check the spark plug and reinstall. See Replacing the
Spark Plug.
15. Replace the spark plug wire.
REPLACING THE SPARK PLUG
Use a replacement part number 791-180852B spark plug. The
correct air gap is 0.025 in. (0.635 mm.). Remove the plug after
every 25 hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug wire
firmly and pull the cap from the spark plug.
2. Clean dirt from around the spark
plug. Remove the spark plug
from the cylinder head by turning
a 5/8 in. socket
counterclockwise.
3. Replace cracked, fouled or dirty
spark plug. Set the air gap at 0.025
in. (0.635 mm.) using a feeler
gauge (Fig. 41).
4. Install a correctly-gapped spark
plug in the cylinder head. Turn the
Adjusting Nuts
Feeler Gauge
Rocker Arms
Fig. 39
INTAKE
EXHAUST
Fig. 40
Feeler Gauge
Exhaust
Adjusting Nut
Exhaust
Rocker Arm
Exhaust
Clearance:
.003-.006 in.
(.076-0.152 mm)
Exhaust Valve Stem
Intake Valve
Stem
Intake Clearance:
.003–.006 in.
(.076–0.152 mm)
5/8 in. socket clockwise until snug.
If using a torque wrench torque to: 110-120 in.•lb. (12.3-13.5
N•m)
Do not over tighten.
SPARK ARRESTOR MAINTENANCE
1. Remove the muffler cover. See Rocker Arm Clearance.
2. With a flat blade screwdriver or Torx T-20 bit, remove the
screw attaching the spark arrestor cover to the muffler (Fig. 42).
3. Pull the tab on the spark arrestor cover out of the muffler.
Remove the spark arrestor cover.
4. Remove the spark arrestor screen from the spark arrestor
cover.
5. Clean the spark arrestor screen with a wire brush or replace it.
6. Reinstall the spark arrestor screen, spark arrestor cover
and screw.
CLEANING
Use a small brush to clean off the outside of the unit. Do not
use strong detergents. Household cleaners that contain
aromatic oils such as pine and lemon, and solvents such as
kerosene, can damage plastic housing or handle. Wipe off any
moisture with a soft cloth.
STORAGE
• Never store the unit with fuel in the tank where fumes may
reach an open flame or spark.
• Allow the engine to cool before storing.
• Lock up the unit to prevent unauthorized use or damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
LONG TERM STORAGE
1. Drain all gasoline from the gas tank into a container. Do not
use gas that has been stored for more than 60 days.
Dispose of the old gasoline in accordance to Federal,
State, and Local regulations.
2. Start the engine and allow it to run until it stalls. This ensures
that all gasoline has been drained from the carburetor.
3. Allow the engine to cool. Remove the spark plug and put 5
drops of high quality motor oil into the cylinder. Pull the starter
rope slowly to distribute the oil. Reinstall the spark plug.
NOTE: Remove the spark plug and drain all of the oil from the
cylinder before attempting to start the trimmer after
storage.
4. Change the oil, referring to Changing the Oil. Dispose of the
old oil in accordance to Federal, State and Local regulations.
5. Thoroughly clean the unit and inspect for any loose or
damaged parts. Repair or replace damaged parts and tighten
loose screws, nuts or bolts. The unit is ready for storage.
TRANSPORTING
• Allow the engine to cool before transporting.
• Secure the unit while transporting.
• Drain the gas tank before transporting.
• Tighten gas cap before transporting.
0.025 in.
(0.635 mm.)
Fig. 41
Fig. 42
Muffler
Spark Arrestor Screen
Spark Arrestor Cover
Screw
Tab
Slot
WARNING: Do not sand blast, scrape or clean
electrodes. Grit in the engine could damage the cylinder.
13
TROUBLESHOOTING
If further assistance is required, contact your authorized service dealer.
CAUSE ACTION
Air filter is plugged Replace or clean the air filter
Old fuel Drain gas tank and add fresh fuel
Improper carburetor adjustment Adjust according to the Carburetor Adjustments section or take
to an authorized service dealer for an adjustment
CAUSE ACTION
Empty fuel tank Fill fuel tank with fuel
Primer bulb wasn't pressed enough Press primer bulb fully and slowly 10 times
On/Off control in the STOP position
Turn On/Off control to ON
Old fuel Drain gas tank and add fresh fuel
Fouled spark plug Replace or clean the spark plug
Plugged spark arrestor Clean or replace spark arrestor
CAUSE ACTION
Old fuel Drain gas tank and add fresh fuel
Improper carburetor adjustment Adjust according to the Carburetor Adjustments section or take
to an authorized service dealer for an adjustment
Fouled spark plug Replace or clean the spark plug
Plugged spark arrestor Clean or replace spark arrestor
CAUSE ACTION
Old fuel Drain gas tank and add fresh fuel
Improper carburetor adjustment Adjust according to the Carburetor Adjustments section or take
to an authorized service dealer for an adjustment
Cutting attachment bound with grass Stop the engine and clean the cutting attachment
Dirty air filter Clean or replace the air filter
Plugged spark arrestor Clean or replace spark arrestor
ENGINE WILL NOT START
ENGINE WILL NOT IDLE
ENGINE WILL NOT ACCELERATE
ENGINE LACKS POWER OR STALLS WHEN CUTTING
14
ENGINE*
* All specifications 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.
Drive Shaft Housing.................................................................................................................................................................... Steel Tube
Throttle Control ............................................................................................................................................................... Finger-Tip Trigger
Approximate Unit Weight (No fuel, with handle, shield and cutting attachment)................................................................. 13.5 lbs (6 kg)
Cutting Mechanism: TB415CS & TB465SS: ..................................................................................... Fixed String Cutting Head
Line Spool Diameter: TB415CS & TB465SS: .............................................................................................. 3 inches (76.2 mm)
Trimming Line Diameter: TB415CS & TB465SS......................................................... 0.105 inches (2.667 mm) square cutting line
TB415CS & TB465SS Cutting Path Diameter ........................................................................................................... 16 inches (40.64 cm)
Engine Type................................................................................................................................................................. Air-Cooled, 4-Cycle
Displacement................................................................................................................................................................ 1.6 cu. in. (26.2 cc)
Operating RPM............................................................................................................................................................... 6,800 - 9,800 rpm
Idle Speed RPM ............................................................................................................................................................. 3,600 - 4,400 rpm
Ignition Type................................................................................................................................................................................. Electronic
Ignition Switch .......................................................................................................................................................................Rocker Switch
Valve clearance............................................................................................................................................ .003–.006 in. (.076–.152 mm))
Spark Plug Gap ....................................................................................................................................................... 0.025 inch (0.635 mm)
Lubrication .................................................................................................................................................................................. SAE 30 Oil
Crankcase Oil Capacity....................................................................................................................................................... 3.04 oz (90 ml)
Fuel.............................................................................................................................................................................................. Unleaded
Carburetor.............................................................................................................................................................. Diaphragm, All-Position
Starter...................................................................................................................................................................................... Auto Rewind
Muffler ............................................................................................................................................................................ Baffled with Guard
Throttle...................................................................................................................................................................... Manual Spring Return
Fuel Tank Capacity............................................................................................................................................................... 12 oz (355 ml)
SPECIFICATIONS
DRIVE SHAFT AND CUTTING ATTACHMENT*
15
NOTES
16
MANUFACTURER’S LIMITED WARRANTY FOR:
No implied warranty, including any implied warranty of
merchantability or fitness for a particular purpose, applies
after the applicable period of express written warranty above
as to the parts as identified. No other express warranty or
guaranty, whether written or oral, except as mentioned
above, given by any person or entity, including a dealer or
retailer, with respect to any product shall bind Troy-Bilt.
During the period of the Warranty, the exclusive remedy is
repair or replacement of the product as set forth above.
(Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.)
The provisions as set forth in this Warranty provide the sole
and exclusive remedy arising from the sales. Troy-Bilt shall
not be liable for incidental or consequential loss or damages
including, without limitation, expenses incurred for substitute
or replacement lawn care services, for transportation or for
related expenses, or for rental expenses to temporarily
replace a warranted product. (Some states do not allow
limitations on how long an implied warranty lasts, so the above
limitation may not apply to you.)
In no event shall recovery of any kind be greater than the amount
of the purchase price of the product sold. Alteration of the safety
features of the product shall void this Warranty. You assume the
risk and liability for loss, damage, or injury to you and your
property and/or to others and their property arising out of the use
or misuse or inability to use the product.
This limited warranty shall not extend to anyone other than the
original purchaser, original lessee or the person for whom it was
purchased as a gift.
How State Law Relates to this Warranty: This warranty gives
you specific legal rights, and you may also have other rights
which vary from state to state.
To locate your nearest service dealer dial 1-800-828-5500 in
the United States or 1-800-668-1238 in Canada.
Troy-Bilt LLC
P.O. Box 361131
Cleveland, OH 44136-0019
The limited warranty set forth below is given by Troy-Bilt LLC
(Troy-Bilt) with respect to new merchandise purchased and used
in the United States, its possessions and territories.
Troy-Bilt warrants this product against defects in material and
workmanship for a period of two (2) years commencing on the
date of original purchase and will, at its option, repair or replace,
free of charge, any part found to be defective in material or
workmanship. This limited warranty shall only apply if this product
has been operated and maintained in accordance with the
Operator’s Manual furnished with the product, and has not been
subject to misuse, abuse, commercial use, neglect, accident,
improper maintenance, alteration, vandalism, theft, fire, water or
damage because of other peril or natural disaster. Damage
resulting from the installation or use of any accessory or
attachment not approved by Troy-Bilt for use with the product(s)
covered by this manual will void your warranty as to any resulting
damage. This warranty is limited to ninety (90) days from the date
of original retail purchase for any Troy-Bilt product that is used for
rental or commercial purposes, or any other income-producing
purpose.
HOW TO OBTAIN SERVICE: Warranty service is available,
WITH PROOF OF PURCHASE THROUGH YOUR LOCAL
AUTHORIZED SERVICE DEALER. To locate the dealer in your
area, please check for a listing in the Yellow Pages or contact
the Customer Service Department of Troy-Bilt by calling 1-
800-828-5500 or writing to P.O. Box 361131, Cleveland OH
44136-0019 or if in Canada call 1-800-668-1238. No product
returned directly to the factory will be accepted unless prior
written permission has been extended by the Customer
Service Department of Troy-Bilt.
This limited warranty does not provide coverage in the
following cases:
A. Tune-ups - Spark Plugs, Carburetor Adjustments, Filters
B. Wear items - Bump Knobs, Outer Spools, Cutting Line,
Inner Reels, Starter Pulley, Starter Ropes, Drive Belts
C. Troy-Bilt does not extend any warranty for products sold
or exported outside of the United States of America, its
possessions 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 without assuming any obligation to modify
any product previously manufactured.
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