This Operator's Manual is an important part of your new Trimmer. It will help you assemble, prepare, and maintain the unit for best performance. Please read and understand what it says.
Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below. This information is very important if you need help from Troy-Bilt's Customer Support Department or an authorized dealer.
Model/Parent Part Number: ____________________
Serial Number: ____________________
If you have difficulty assembling this product or have any questions regarding the controls, operation, or maintenance of this unit, please call the Customer Support Department:
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.
Symbol | Meaning |
---|---|
⚠ | DANGER: Failure to obey a safety warning will result in serious injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock, and personal injury. |
⚠ | WARNING: Failure to obey a safety warning can result in injury to yourself and others. Always follow the safety precautions to reduce the risk of fire, electric shock, and personal injury. |
⚠ | CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock, and personal injury. |
⚠ | SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. Attention is required in order to avoid serious personal injury. May be used in conjunction with other symbols or pictographs. |
ℹ | NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment. |
⚠ WARNING: THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
WARNING: Gasoline is highly flammable, and its vapors can explode if ignited. Take the following precautions:
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.
Symbol | Meaning |
---|---|
⚠ | SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. May be used in conjunction with other symbols or pictographs. |
📖 | 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. |
👄🎙 | WEAR EYE AND HEARING PROTECTION: WARNING: Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection meeting ANSI Z87.1-1989 standards and ear protection when operating this unit. |
🚫 | KEEP BYSTANDERS AWAY: WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m.) from the operating area. |
🔍 | PRIMER BULB: Push primer bulb, fully and slowly, 5 to 7 times. |
⛴ | UNLEADED FUEL: Always use clean, fresh unleaded fuel. |
🛠 | OIL: Refer to operator's manual for the proper type of oil. |
🚶 | 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. |
ⓘ | ON/OFF STOP CONTROL: ON / START / RUN |
ⓒ | ON/OFF STOP CONTROL: OFF OR STOP |
🔥 | HOT SURFACE WARNING: Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation. When turned off they remain hot for a short time. |
✂ | SHARP BLADE: WARNING: Sharp blade on cutting attachment shield. To prevent serious injury, do not touch line cutting blade. |
👄🎙 | WEAR YOUR SAFETY GLASSES: WARNING: The operation of any power tool can cause foreign objects to be thrown into your eyes. This can lead to severe eye damage. Before commencing power tool operation, always wear safety glasses or goggles that are marked as meeting ANSI Z87.1-1989 standards, and a full face shield when needed. |
As a trimmer, this unit is used for:
Other optional accessories may be used with the TB75SS. See list of add-ons on page 11.
The TB75SS trimmer includes the following key components:
On some units, the D-handle may be preinstalled and only require loosening the screws and adjusting the D-handle to the operator. Go to step 4 for adjusting the D-handle if preinstalled.
Old and/or improperly mixed fuel are the main reasons for the unit not running properly. Be sure to use fresh, clean unleaded fuel. Follow the instructions carefully for the proper fuel/oil mixture.
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. It forms acids when stored. When using alcohol-blended fuel, use fresh fuel (less than 60 days old).
If you choose to use a blended fuel, or its use is unavoidable, follow recommended precautions.
The bottle of Troy-Bilt 2-Cycle Oil that came with your unit contains a fuel additive which will help inhibit corrosion and minimize the formation of gum deposits. It is recommended that only Troy-Bilt 2-Cycle Oil be used with this unit.
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.
⚠ 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.
Thoroughly mix the proper ratio of 2-cycle engine oil with unleaded gasoline in a separate fuel can. Use a 32:1 fuel/oil ratio. Do not mix them directly in the engine fuel tank. See the table below for specific gas and oil mixing ratios.
NOTE: One gallon (3.8 liters) of unleaded gasoline mixed with one 4 oz. (120 ml.) bottle of Troy-Bilt 2-Cycle Oil makes a 32:1 fuel/oil ratio.
Unleaded Gas | Troy-Bilt 2 Cycle Oil | Mixing Ratio |
---|---|---|
1 US. Gallon (3.8 Liters) | + 4.0 Fl. Oz. (120 ml) | 32:1 |
1 Liter | + 30 ml | 32:1 |
⚠ 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.
⚠ WARNING: Add fuel in a clean, well-ventilated area outdoors. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate.
NOTE: Dispose of the old fuel/oil mix in accordance to Federal, state, and local regulations.
⚠ WARNING: Operate this unit only in a well-ventilated area outdoors. Carbon monoxide exhaust fumes can be lethal in a confined area.
⚠ WARNING: Avoid accidental starting. Be in the starting position when pulling the starter rope. The operator and unit must be in a stable position while starting to avoid serious personal injury. Ensure any Add-On being used is installed correctly and secure before starting unit.
NOTE: When starting, the EZ-Start™ Lever will automatically click off when the throttle control is squeezed.
NOTE: If the engine floods while trying to start, squeeze the throttle control. Pull the starter rope briskly. The engine should start within three (3) to eight (8) pulls.
NOTE: If engine stalls while squeezing trigger, continue to squeeze trigger and pull starter rope until the trimmer starts.
NOTE: Choking is unnecessary when starting a warm engine. Put the On/Off Stop Control in the ON position, squeeze the throttle and pull the starter rope briskly.
The EZ-Link™ system enables the use of these optional add-ons:
⚠ WARNING: Read and understand operator's manual for add-on prior to operation.
⚠ WARNING: To avoid serious personal injury and damage to the unit, shut unit off before removing or installing add-ons.
NOTE: To make installing or removing the add-on easier, place the unit on the ground or on a work bench.
NOTE: Aligning the release button with the guide recess will help installation.
⚠ CAUTION: Lock the release button in the primary hole and securely tighten the knob before operating this unit.
⚠ CAUTION: The cutting attachment and add-ons with the EZ-Link™ system are to be used in the primary hole unless stated otherwise in the specific add-ons operator's manual. Using the wrong hole could lead to personal injury, or damage to the unit.
For edging when using the line head cutting attachment with EZ-Link™ models, lock the release button of the cutting attachment into the 90° edging hole or the 180° edging hole.
⚠ WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit.
Before operating the unit, stand in the operating position. Check for the following:
The Bump Head™ cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground while operating the trimmer at high speed.
NOTE: Always keep the trimming line fully extended. Line release becomes more difficult as cutting line becomes shorter.
Each time the head is bumped, about 1 inch (25.4 mm.) of trimming line is released. A blade in the cutting attachment shield will cut the line to the proper length if excess line is released.
For best results, tap the Bump Head™ on bare ground or hard soil. If line release is attempted in tall grass, the engine may stall. Always keep the trimming line fully extended. Line release becomes more difficult as the cutting line becomes shorter.
NOTE: Do not rest the Bump Head™ on the ground while the unit is running.
⚠ CAUTION: Do not remove or alter the line cutting blade assembly. Excessive line length will make the clutch overheat. This may lead to serious personal injury or damage to the unit.
Some line breakage will occur from:
For example, the line will wear faster when trimming against a foundation wall as opposed to trimming around a tree.
Decorative trimming is accomplished by removing all vegetation around trees, posts, fences, etc. Rotate the whole unit so that the cutting attachment is at a 30° angle to the ground.
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to an authorized service dealer.
⚠ WARNING: To prevent serious injury, never do maintenance or repairs with unit running. Always do maintenance and repairs on a cool unit. Disconnect spark plug wire to ensure the unit will not start.
These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up.
Frequency | Maintenance Required | Refer To: |
---|---|---|
Before Starting Engine | Fill fuel tank with correct oil and fuel mixture | Page 9 |
Every 10 Hours | Clean and re-oil air filter | Page 16 |
Every 25 Hours | Check spark arrestor and clean | Page 17 |
Check spark plug condition and gap | Page 19 | |
Every 50 Hours | Inspect exhaust port and spark arrestor screen for clogging or obstruction to assure maximum performance levels. | Page 17 |
This section covers both Split-Line™ line and standard single line installation.
Always use Troy-Bilt™ 0.095 inch (2.41 mm) replacement line. Using line other than specified may make the engine overheat or fail.
⚠ WARNING: Never use metal-reinforced line, wire, chain, or rope, etc. These can break off and become dangerous projectiles.
There are two methods to replace the trimming line:
NOTE: Membrane line can only be used with the inner reel with the slotted holes. Single line can be used on either type of inner reel. Use Figure 15 to identify the inner reel you have.
NOTE: Always use the correct line length when installing trimming line on the unit. The line may not release properly if the line is too long.
Go To Step 8 for Membrane Line Installation
NOTE: Failure to wind the line in the direction indicated will cause the cutting attachment to operate incorrectly.
NOTE: The spring must be assembled on the inner reel before reassembling the cutting attachment.
NOTE: The spring must be assembled on the inner reel before reassembling the cutting attachment.
⚠ WARNING: To avoid serious personal injury, always turn your trimmer off and allow it to cool before you clean or do any maintenance on it.
Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Not maintaining the air filter will VOID the warranty.
NOTE: Operating the unit without the air filter and air filter/muffler cover assembly, will VOID the warranty.
NOTE: If exhaust gasket is torn or damaged, replace with a new gasket before reassembling muffler.
⚠ WARNING: If muffler is not tightened securely, it could fall off causing damage to the unit and possible serious personal injury.
NOTE: Maintenance, Replacement, or Repair of the emission control devices and systems may be performed by any non-road engine repair establishment, individual or authorized service dealer.
In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to an authorized servicing dealer, or establishment for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminant's involved in the cleaning process for the port.
The idle speed of the engine is adjustable through the Air filter/Muffler cover.
NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments.
Old and/or improperly mixed fuel is usually the reason for the unit not running properly. Drain and refill the tank with fresh, properly mixed fuel prior to making any adjustments. Refer to Oil and Fuel Information on page 9.
The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. 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 on page 16.
If after checking the fuel mixture and cleaning the air filter the engine still will not idle, adjust the idle speed screw as follows.
⚠ WARNING: The cutting attachment may be spinning during idle speed adjustments. Wear protective clothing and observe all safety instructions to prevent serious personal injury.
NOTE: The cutting attachment should not rotate when the engine idles.
Checking the fuel mixture, cleaning the air filter, and adjusting the idle speed should solve most engine problems.
If not and:
have the carburetor adjusted by an authorized service dealer.
⚠ WARNING: When the unit is turned off make sure the cutting attachment has stopped before the unit is set down to prevent serious personal injury.
Use a Champion RDJ7Y spark plug (or equivalent). The correct air gap is 0.020 inch (0.5 mm). Remove the plug after every 25 hours of operation and check its condition.
⚠ CAUTION: Do not sand blast, scrape, or clean electrodes. Grit in the engine could damage the cylinder.
If the unit will be stored for an extended time, use the following storage procedure.
NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after storage.
⚠ WARNING: To avoid serious personal injury, always turn your trimmer off and allow it to cool before you clean or do any maintenance on it.
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.
Part | Part Number |
---|---|
2-Cycle Oil | 49V0122M063 |
Spark Plug | 791-610311B |
Replacement Line | 4901341L063 |
Replacement Line Cartridge | 753-1156 |
Inner Reel Spring | 791-610317B |
Outer Spool | 791-153619 |
Inner Reel | 753-1155 |
Bump Knob | 791-153066B |
Fuel Cap | 791-180000B |
Shoulder Strap | 791-682075B |
Spark Arrestor | 791-182747 |
Exhaust Gasket | 791-182065 |
These replacement parts can be purchased from your local authorized dealer.
Cause | Action |
---|---|
Engine Will Not Start | |
On/Off Stop Control is in OFF position | Turn On/Off Stop Control to ON |
Empty fuel tank | Fill fuel tank with properly mixed fuel |
Primer bulb wasn't pressed enough | Press primer bulb fully and slowly 5-7 times |
Engine flooded | Use starting procedure with the EZ-Start™ Lever to the right on page 10 |
Old or improperly mixed fuel | Drain gas tank / Add fresh fuel mixture |
Fouled spark plug | Replace or clean the spark plug |
Plugged spark arrestor | Clean or replace spark arrestor |
Engine Will Not Idle | |
Air filter is plugged | Replace or clean the air filter |
Old or improperly mixed fuel | Drain gas tank / Add fresh fuel mixture |
Improper carburetor adjustment | Adjust per instructions on page 18 |
Engine Will Not Accelerate | |
Old or improperly mixed fuel | Drain gas tank / Add fresh fuel mixture |
Improper carburetor adjustment | Take to an authorized service dealer for carburetor 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 page 17. |
Engine Lacks Power or Stalls When Cutting | |
Old or Improperly mixed fuel | Drain gas tank / Add fresh fuel mixture |
Improper carburetor adjustment | Take to an authorized service dealer for carburetor adjustment |
Fouled spark plug | Replace or clean the spark plug |
Plugged spark arrestor | Clean or replace spark arrestor page 17. |
Cutting Attachment Will Not Advance Line | |
Cutting attachment bound with grass | Stop the engine and clean cutting attachment |
Cutting attachment out of line | Refill with new line |
Inner reel bound up | Replace the inner reel |
Cutting head dirty | Clean inner reel and outer spool |
Line welded | Disassemble, remove the welded section, and rewind the line |
Line twisted when refilled | Disassemble and rewind the line |
Not enough line is exposed | Push the bump knob and pull out line until 4 inches (102 mm) of line is outside of the cutting attachment |
Cutting Line Advances Uncontrollably | |
Oil, cleaner, or lubricant in cutting head | Clean and thoroughly dry the cutting head |
If further assistance is required, contact your authorized service dealer.
Feature | Specification |
---|---|
Engine Type | Air-Cooled, 2-Cycle |
Stroke | 1.25 in. (31.75 mm) |
Displacement | 1.9 cu in. (31 cc) |
Clutch Type | Centrifugal |
Idle Speed RPM | 2,800 - 3,600 rpm |
Operating RPM | 6,600 - 10,400 rpm |
Ignition Type | Electronic |
Ignition Switch | Momentary Flip Switch |
Spark Plug Gap | 0.020 in. (0.5 mm) |
Lubrication | Fuel/Oil Mixture |
Fuel/Oil Ratio | 32:1 |
Carburetor | Diaphragm, All-Position |
Starter | Auto Rewind |
Muffler | Baffled with Guard |
Throttle | Manual Spring Return |
Fuel Tank Capacity | 13.5 oz. (400 ml) |
Feature | Specification |
---|---|
Drive Shaft Housing | Steel Tube, EZ-Link™ |
Throttle Control | Finger-Tip Trigger |
Unit Weight (No fuel, with cutting attachment, cutting attachment shield and D-handle) | 13.25 lbs. (4.95 kg) |
Cutting Mechanism | Bump Head Dual String Cutting Head |
Line Spool | Bump Line Releaser |
Line Spool Diameter | 3 inches (76.2 mm) |
Trimming Line Diameter | 0.095 inches (2.41 mm) |
Cutting Path Diameter | 17 inches (43.18 cm) |
The Environmental Protection Agency and TROY-BILT LLC (TROY-BILT) are pleased to explain the emission control system warranty on your 2002 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent anti-smog standards. TROY-BILT must warrant the emission control system on your small off-road engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road engine.
Your emission control system may include parts such as the carburetor or fuel-injected system, the ignition system, and catalytic converter. Also included may be hoses, belts, connectors and other emission-related assemblies.
Where a warrantable condition exists, TROY-BILT will repair your small off-road engine at no cost to you including diagnosis, parts and labor.
The 2002 and later small off-road engines are warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or replaced by TROY-BILT.
If you have any questions regarding your warranty rights and responsibilities, you should call 1-866-840-6483.
The limited warranty set forth below is given by Troy-Bilt LLC with respect to new merchandise purchased and used in the United States, its possessions and territories.
Troy-Bilt LLC 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 LLC 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.
Warranty service is available, WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, visit the website at www.troybilt.com, check for a listing in the Yellow Pages, call 1 (866) 840-6483 or 1 (330) 558-7220 or write to P.O. Box 361131, Cleveland, OH 44136-0019.
Troy-Bilt LLC reserves the right to change or improve the design of any Troy-Bilt Product without assuming any obligation to modify any product previously manufactured.
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 LLC. 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 LLC 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.
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 (877) 282-8684.
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