SENIX GTS4QL-M2 4-Cycle 1.9 cu in. (31 cc) Engine Gasoline Powered Trimmer Instruction Manual

SENIX GTS4QL-M2 4-Cycle 1.9 cu in. (31 cc) Engine Gasoline Powered

Trimmer

SAFETY

DANGER:
Signals an EXTREME hazard. Failure to obey a safety DANGER symbol WILL result in serious injury or death to yourself or to others.

WARNING:
Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm. These exposures can occur in and around oil fields, refineries, chemical plants, transport and storage operations such as pipelines, marine terminals, tank trucks and other facilities and equipment. For more information go to: www.P65Warnings.ca.gov/petroleum.

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.

NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.

WARNING:
CALIFORNIA PROPOSITION 65 This product contains a chemical known to the state of California to cause cancer, birth defects or other reproductive harm. 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.

SAFETY & INTERNATIONAL SYMBOLS 
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.

SAFETY WARNINGS

1. Proper safety precautions must be observed. Like all power equipment this unit must be handled carefully. DO NOT EXPOSE YOURSELF OR OTHERS TO DANGER. Follow these general rules. Do not permit others to use this unit unless they are thoroughly responsible and have read, and understood the string trimmer manual and are trained in its operation.
2. Always wear safety goggles for eye protection. Dress properly. Do not wear loose clothing or jewelry that could become caught in moving parts of the unit. Safe, sturdy, nonskid footwear should always be worn. Secure hair so it is above shoulder level. It is recommended that legs and feet be covered to protect from flying debris during operation.
3. Inspect the entire unit for loose parts (nuts, bolts, screws, etc.) and any damage before start and operation. Repair or replace as necessary before using the machine.
4. DO NOT USE any attachment with this power head other than the ones recommended by the manufacturer. Serious injury to the operator or bystanders could result as well as damage to the machine.
5. Keep the handles free from oil and fuel.
6. Do not operate the unit in insufficient lighting conditions.
7. Do not operate the unit when you are tired, when your concentration is impaired and/or under the influence of drugs, medication, or alcohol.
8. Always use proper handles when trimming.
9. Do not smoke while filling tank.
10. Do not fill fuel in an enclosed room or near open flames. Ensure adequte ventilation.
11. Always store fuel in a properly marked container that is approved by local codes and ordinances for such usage.
12. Never remove the fuel tank cap while the engine is running.
13. Never start or run the product inside a closed room or building. Fumes from the exhaust contain dangerous carbon monoxide.
14. Never attempt to make engine adjustments while the unit is running. Always make engine adjustments with the unit resting on a flat, clear surface.
15. Do not use the unit if it is damaged or poorly adjusted. Never remove the unit’s guard. Serious injury to the operator or bystanders could result as well as damage to the machine.
16. Inspect the area to be cut and remove all debris that could become entangled in the nylon cutting head. Also remove any objects that the unit may throw during cutting.
17. Keep children away. Onlookers should be kept at a safe distance from the work area, at least 15 METERS (50 FEET) away.
18. Never leave the unit unattended while the engine is running.
19. Do not use this unit for any job other than those for which it is intended as described in this manual.
20. Do not overreach. Keep proper footing and balance at all times. Do not use the unit while standing on a ladder or on any other unstable footing location.
21. Keep hands and feet a safe distance from the nylon cutting line while unit is in use.
22. Do not use this type of unit for sweeping away debris.
23. Use nylon cutting head which is free of damage. If a stone or any other obstacle is hit, stop the engine and check the nylon cutting head. A broken or unbalanced nylon cutting head must never be used.
24. FOLLOW INSTRUCTIONS for assembling and operation.
25. Do not store the unit in a closed area where fuel vapors can reach an open flame from hot water heaters, furnaces, etc. Store in a locked, well ventilated area only.
26. Ensure safe and proper performance of your unit. Please only use original accessories. The use of any other accessories or attachments may cause a potential hazard or injury to the user, damage to the unit, and void the warranty.
27. If the unit will not be used for a long time, clean the unit completely, especially the fuel/oil tank, its surroundings, and the air filter.
28. When refueling, stop the engine and confirm that it is cooled down. Never refuel when the engine is running or hot. When gasoline spills, be sure to wipe it up completely and dispose of those materials before starting the engine.
29. Stay clear of other workers or bystanders by at least 15 meters/50 feet.
30. Whenever approaching an operator of the unit, carefully call their attention and confirm that the operator stops the engine. Be careful not to startle or distract the operator which can cause an unsafe situation.
31. Never touch the nylon cutting head whenever the engine is running. If it is necessary to adjust the protector or nylon cutting head, make sure to stop the engine and confirm that the nylon cutting head has stopped running.
32. The engine should be turned off when the unit is moved between work areas.
33. Be careful not to hit the nylon cutting head against stones, or the ground. Unreasonable rough operation will shorten the life of the unit as well as create an unsafe environment for yourself and those around you.
34. Pay attention to loosening and overheating parts. If there is any abnormality of the unit, stop operation immediately and check the unit carefully. If necessary, have the unit serviced by customer support. Never continue to operate a unit which may be malfunctioning. In start-up or during operation of the engine, never touch hot parts such as the muffler, the high voltage wire, or the spark plug.
35. After the engine has stopped, the muffler is still hot. Never place the unit in any places where there are flammable materials (dry grass, etc.), combustible gasses, or combustible liquids.
36. Pay special attention to operation in the rain or just after the rain as the ground may be slippery.
37. If you slip or fall to the ground, release the throttle lever immediately.
38. Be careful not to drop the unit or hit it against obstacles.
39. Before proceeding to adjust or repair the unit, be sure to stop the engine and detach the spark plug.
40. When the machine is placed in storage for a long time, drain fuel/oil from the fuel/oil tank and carburetor, clean the parts, and move the machine to a safe place.
41. Make periodic inspections to ensure safe and efficient operation. For a thorough inspection of your unit, contact customer support.
42. Keep the unit away from fire or sparks.
43. Keep your body warm, especially the head, neck, feet, ankles, hands, and wrists.
44. Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks and also by not smoking.
45. Limit the hours of operation.
46. If you experience discomfort, redness and swelling of the fingers followed by whitening and loss of feeling, consult your physician before further exposing yourself to cold and vibration.
47. Always wear ear protection. Loud noises for long periods can cause hearing loss, even permanent deafness.
48. Wear no-slip heavy duty work gloves to improve your grip on the handle. Gloves also reduce the transmission of machine vibration to your hands.
49. Do not lay the machine on the side; otherwise the fuel could spill out.
50. Fuel evaporation during refueling and exhaust gases are harmful to the operator and people around the unit.
51. Make sure that the fuel evaporation and exhaust gases will not drift to the face of operator and keep other people away from your working area.
52. Do not allow children or untrained individuals to use this unit.

WARNING:
Even when the unit is used as prescribed it is not possible to eliminate all residual risk factors. The following hazards may arise in connection with the unit’s construction and design:

• Damage to lungs if an effective dust mask is not worn.
• Damage to hearing if effective hearing protection is not worn.
• Health defects resulting from vibration emission if the unit is being used over long periods of time or not adequately managed and properly maintained.

KNOW YOUR UNIT

APPLICATIONS
As a trimmer:

• Cutting grass and light weeds
• Edging
• Decorative trimming around trees, fences, etc. Other optional attachments may be used with this unit.

SPECIFICATIONS

• Engine type Air-Cooled, 4-Cycle
• Displacement 1.9 cu in. (31 cc)
• Spark plug gap 0.025 in. – 0.31 in. (0.6 – 0.8 mm)
• Lubrication SAE 30 Oil
• Crankcase lubrication capacity  2.01 oz. (60 ml)
• Fuel tank capacity. 10.93 oz. (320 ml)
• Approximate unit weight (no fuel)  11.84 lbs. (5.37 kg)
• Trimmer mechanism Bump Head or Fixed Line Head
• Trimming line  Spiral Trimming line
• Trimming line diameter 0.095 in. (2.4 mm)
• Cutting path diameter (Model No. 74098*) 17.7 in. (450 mm)

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.

ASSEMBLY

This product requires assembly. Carefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included. 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 1-800-261-3981 for assistance.

WARNING:
Do not use this product if any parts on the packing list are already assembled to your product when you unpack it. Parts on this list are not assembled to the product by the manufacturer and require customer installation. Use of a product that may have been improperly assembled could result in serious personal injury.

INCLUDED PARTS

WARNING:
To prevent an accidental start that could cause serious personal injury, always disconnect the engine spark plug wire from the spark plug when assembling parts.

INSTALLING THE CUTTING HEAD SHIELD

ADJUSTING THE HANDLE
The handle can be adjusted for location on the shaft and for angle of grip. To adjust handle:

1. Flip the lever down and turn the nut counterclockwise to loosen the handle (Fig. 2).
2. Hold the unit in the operating position. Move the handle up or down the shaft housing to a comfortable location. Make sure the handle is positioned beyond the end of the safety label.
3. Tilt the handle to the preferred grip angle.
4. Tighten the knob clockwise and flip the lever up to secure the handle

INSTALLING AND REMOVING THE ATTACHMENT
In addition to the supplied line trimmer lower shaft, the coupler on the upper shaft enables the use of various other lower shaft attachments, available for separate purchase

Installing the Attachment

1. If present, remove the gray spacer from the coupler opening.
2. Set the unit on a flat, level surface. 3. Turn the knob counterclockwise to loosen the coupler (Fig. 3).
3. Align the release button with the guide recess (Fig. 4).
4. Push the attachment straight into the coupler until the release button snaps firmly into the primary hole (Fig. 5).
5. Turn the knob clockwise to tighten the coupler

CAUTION
Unless specified otherwise, the release button should be snapped into the primary hole only. Using the wrong hole could lead to personal injury or damage to the unit

Removing the Attachment

1. Set the unit on a flat, level surface.
2. Turn the knob counterclockwise to loosen the coupler (Fig. 3).
3. Press and hold the release button (Fig. 4).
4. Pull the attachment straight out of the coupler (Fig. 5).

INSTALL THE HARNESS
The harness with quick release function can be hooked behind the rear hand if needed (Fig. 5a).

NOTE : Harness use is optional

OIL AND FUEL

USING THE RIGHT OIL
Use a high-quality SAE 30 weight oil. DO NOT use dirty oil. Failure to use clean oil of the correct type can cause premature engine wear and failure

WARNING
OVERFILLING THE CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY. Check the oil level before each use. The importance of maintaining the proper oil level cannot be overemphasized. Change the oil according to the Maintenance Schedule.

CAUTION
Do not overfill. Overfilling the crankcase may cause excessive smoke, oil loss, and engine damage

1. Set the unit on a flat, level surface.
2. Unscrew the oil fill plug (Fig. 6).
3. Pour the entire container of oil into the oil fill hole. DO NOT overfill. Refer to Checking the Oil Level.
4. Wipe up any oil that may have spilled.
5. Reinstall the oil fill plug. Make sure the O-ring is in place on the oil fill plug

WARNING
Add fuel in a clean, well-ventilated outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate. Gasoline and its vapors are highly flammable and explosive. To prevent serious personal injury and property damage, handle it with care. Keep away from ignition sources and open flames, handle outdoors only. Pour fuel outdoors where there are no sparks or flames. Slowly remove the fuel cap after stopping the engine. Do not smoke while fueling. Wipe spiled fuel from unit. Move at least 3 m (10 ft) away from the fueling source before starting engine.

WARNING
Always 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 so it is above shoulder level.

1. Position the unit with the fuel cap facing up.
2. Slowly remove the fuel cap.
3. Place the fuel container spout into the fuel tank fill hole and fill the tank. Stop adding gas when you see that the level reaches the base of the tank spout
4. Wipe up any fuel that may have spilled.
5. Reinstall the fuel cap.
6. Move the unit at least 30 ft. (9.1 m) from the fuel container and the fueling site before starting the engine.

STARTING AND STOPPING

WARNING

• Do not allow familiarity with this product to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.
• Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.
• Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.
• Operation of this equipment could create sparks that can start fires around dry vegetation. A spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements.

USING THE RIGHT FUEL
The use of old fuel is the most common cause of performance problems. Use only fresh, clean unleaded gaso- line.

NOTE: This unit has a four-cycle engine. 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 ab- sorbs water. As little as 1% water in the fuel can make fuel and oil separate, forming acids when stored. ALWAYS use fresh fuel (less than 30 days old) with less than 10% ethanol.

NOTE: Dispose of old fuel according to federal, state and local regulations.

Using Blended Fuels
If using a blended fuel:

• Always use fresh unleaded gasoline
• Use the fuel additive STA-BIL® or an equivalent

WARNING
DO NOT USE E85 FUEL IN THIS UNIT. It has been proven that fuel containing greater than 10% ethanol will likely damage this engine and void the warranty.

Using Fuel Additives
Use a fuel additive, such as STA-BIL Fuel Stabilizer or an equivalent, to inhibit corrosion and minimize gum deposits. 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.

WARNING
Avoid accidentally starting the unit. To avoid serious injury, the operator and the unit must be in a stable position when pulling the starter rope (Fig. 10).

CAUTION
Inspect unit before each use. Replace damaged parts. Check for fuel leaks. Make sure all fasteners are in place and secure. Replace cutting attachment parts that are cracked, chipped, or damaged in any way. Make sure the cutting attachment is properly installed and securely fastened. Make sure the cutting attachment shield is properly attached and in the position recommended by the manufacturer. Use only flexible, nonmetallic line recommended by the manufacturer. Never use, for example, wire or wire-rope, which can break off and become a dangerous projectile.

STARTING INSTRUCTIONS

1. Check the oil level. Refer to Checking the Oil Level.
2. Fill the fuel tank. Refer to Fueling the Unit.
3. Slowly press and release the primer bulb 10 times (Fig. 8).
4. Push the choke button in until it clicks (Fig. 9).
5. Crouch in the starting position (Fig. 10).
6. Pull the starter rope with a controlled and steady6. Pull the starter rope with a controlled and steady motion 5 times to start the engine (Fig. 10). Allow the engine to warm up for 30 to 60 seconds at idle speed before increasing cutting speed.
7. To increase trimmer cutting speed, press and hold the throttle lockout with one hand, and then squeeze the throttle control with the other. The further you squeeze the throttle control, the more the cutting speed will increase

NOTE: The lockout will remain engaged as long as the throttle control is being squeezed.
NOTE: To prevent the throttle control from being squeezed accidentally, this unit has a throttle lockout. The throttle control cannot be squeezed unless the throttle lockout is also engaged.

• IF… the engine does not start, begin the starting procedure with step 3.
• IF… the engine fails to start after 3 attempts: Press and hold the throttle lockout. Squeeze and hold the throttle control. Pull the starter rope with a controlled and steady motion until the unit starts.
• IF… the engine stops while the throttle control is squeezed, begin the starting procedure with step 3. IF THE ENGINE IS HOT… begin the starting procedure with step 4.

STOPPING INSTRUCTIONS

1. Release the throttle control and allow the engine to idle.
2. Press and hold the On/Off switch in the Off (O) position until the engine comes to a complete stop (Fig. 7). Make sure the cutting attachment has stopped before the unit is set down.

OPERATION

HOLDING THE UNIT
Always wear eye, hearing, hand, foot and body protection to reduce the risk of injury when operating this unit. Keep all parts of your body away from the rotating cutting attachment and hot surfaces.

WARNING:
To prevent serious personal injury, avoid arm contact with the engine while operating the unit. The engine may be extremely hot.

• Stand in the operating position (Fig. 11). Stand up straight. Do not bend over.
• Keep feet apart and firmly planted.
• Hold the shaft grip with the right hand. Keep the right arm slightly bent.
• Hold the handle with the left hand. Keep the left arm straight.
• Hold the unit at waist level.
• Position the cutting head a few inches above the ground.
• Do not over-reach; Keep all parts of your body away from the rotating cutting attachment and hot surfaces.
• To direct clippings away from you, whenever possible swing the trimmer in a left to right cutting motion. There is an embossed arrow on the top of the safety guard indicating the preferred left to right direction of trimmer operation.

DECORATIVE TRIMMING
When trimming around trees, posts, fences, etc., rotate the whole unit so that the cutting head is at a 30° angle to the ground (Fig. 12).

Maintaining the Trimming Line
Hard surfaces, such as sidewalks, can cause the trimming line to wear down quickly or break.

• Frequently check the trimming line length. Replace the trimming line as needed. Refer to Replacing the Trimming Line.
• DO NOT force the unit. Make shallow cuts in as many passes as are necessary to achieve the desired depth. Cut at a slow, even pace.

TRIMMING TIPS

• Avoid hot surfaces by always keeping the tool away from your body.
• Cut all grass from top to down. This will prevent grass from wrapping around the shaft housing and string head which could cause damage from overheating.
• If grass becomes wrapped around the string head, STOP THE ENGINE, disconnect the spark plug wire, and remove the grass.
• Use the tip of line to trim grass; do not force string head into uncut grass.
• Avoid trees, flowers, stones, walls and other objects which can cause the line to break.
• Check and feed the line regularly to maintain full cutting width and performance

ADJUSTING THE TRIMMING LINE
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 tap the bump knob on the ground (Fig. 13) while operating the unit at high speed. For best results, tap the bump knob on bare ground or hard soil. Attempting to release line in tall grass may stall the engine.

NOTE: Do not rest the cutting head on the ground while the unit is running. Each time the bump knob is tapped, about 1 inch (25.4 mm) of trimming line is released.

NOTE: Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line gets shorter

TIPS FOR BEST RESULTS

• To direct clippings away from the operator, tilt the cutting head slightly down to the right; whenever possible swing the trimmer in a left to right cutting motion. There is an embossed arrow on the top of the safety guard indicating the preferred left to right direction of trimmer operation.
• Do not trim wet grass or weeds.

NOTE: Some line breakage will occur from:

• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick vegetation
• Forcing the line into objects such as walls or fence posts

MAINTENANCE

WARNING
Never use metal-reinforced line, wire, chain or rope. These can break off and become dangerous projectiles. Only use the trimming line described in the Specifications section. Other types of trimming line may cause the unit to overheat or fail.

REPLACING THE SPOOL (BUMP HEAD)

1. Push in the tabs on the side of the spool retainer and
   pull to remove (Fig. 14).

2. Install the spring, washer, and rewound spool, making sure that the lines are captured in the holding slots on the new spool.
   NOTE: Make sure that the ends of the lines extend approximately 6 in. (152 mm).

3. Install the new spool so that the line ends align with the eyelets in the cutting head, and thread the line ends through the eyelets.

4. Pull the lines extending from the cutting head so that the strings release from the slots in the spool.

5. Install the spool retainer by pressing the tabs into the slots and pushing down on the spool until the spool retainer clicks into place (Fig. 14).

REPLACING THE TRIMMING LINE (BUMP HEAD)

1. Remove the spool from the cutting head.
2. Remove any old line from the spool. Use a clean cloth to clean the surface of the cutting head.
3. Cut a 15 ft. (4.5 m) length of 0.095 in. (2.4 mm) diameter trimming line.
4. Bend the line at the midpoint and insert the bend into the holding slot on the spool (Fig. 15).
5. Wrap the line evenly and firmly around the spool (Fig. 16).
6. Position the lines in the spool holding slots (Fig. 14).
7. Install the spool in the cutting head. See Replacing the Spool.

CHANGING THE CUTTING HEAD FROM BUMP TO FIXED

1. Insert the Torx wrench into the locking hole on the top of the gear box (Fig. 18).
2. Apply light pressure on the wrench while turning the bump head clockwise. At a certain point you will feel the head catch on the wrench when the wrench tip slips into the notch on the head collar.
3. Continue turning head clockwise to unscrew and remove the head from the arbor.
4. Screw the fixed head counterclockwise onto the arbor until securely tightened (Fig. 18a). Remove the Torx wrench from the locking hole.
5. To reinstall the bump head, perform the preceding instructions in the opposite order and manner.

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 the unit to a qualified service dealer.

NOTE : Maintenance, replacement, or repair of the emission control devices and system may be performed by a qualified service dealer.

NOTE: Please read the California/EPA statement that came with the unit for a complete listing of terms and coverage for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.

Every 10 hours

| • Clean and re-oil the air filter. Refer to Maintaining the Air Filter.
Every 20 hours| • Change the oil. Refer to

Changing the Oil.

After the first 10 hours and

at 38 hours

| •  Have the rocker arm clearance checked by a qualified service dealer.

•  Check the spark plug

condition and gap. Refer to Maintaining the Spark Plug.

CHECKING THE OIL LEVEL

Check the oil level before each use. The importance of maintaining the proper oil level cannot be overemphasized.

Inspecting the Oil Level

1. Stop the engine and allow it to cool.
2. Set the unit on a flat, level surface, such as a workbench or table. The cutting head shield should hang over the edge so that the engine is level
3. Unscrew the oil fill plug. The oil level should be visible on the first thread of the oil reservior (Fig. 20). If the oil level is too low, add oil. Refer to Adding Oil.

Adding Oil

1. Clean the area around the oil fill plug (Fig. 20) to prevent debris from entering the oil fill hole.
2. Unscrew the oil fill plug.
3. Add oil to the oil fill hole until the oil level is visible on the first thread of the oil reservoir (Fig. 20).
4. Wipe up any oil that may have spilled.
5.  Make sure the O-ring is in place on the oil fill plug
6. Reinstall the oil fill plug.

CHANGING THE OIL
Old engine oil is considered special waste and has to be disposed according to your local environment protection regulation. Do not pour the oil into a garbage can, sewer, soil etc. Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities.

1. Clean the area around the oil fill plug (Fig. 20) to prevent debris from entering the oil fill hole.
2. Unscrew the oil fill plug.
3. Tip the unit vertically to pour the oil out of the oil fill hole and into a container (Fig. 22). Allow ample time for complete drainage.
4. Wipe up any oil that may have spilled.
5. Pour 2.03 fl.oz. (60 ml) of SAE 30 oil into the oil fill hole.
6. Wipe up any oil that may have spilled.
7. Make sure the O-ring is in place on the oil fill plug (Fig. 21).
8. Reinstall the oil fill plug

MAINTAINING THE AIR FILTER
Failure to maintain the air filter can result in poor performance or can cause permanent damage to the engine. Engine failure due to improper air filter maintenance is not covered by the product warranty.

Cleaning the Air Filter

1. Unscrew the cover screw completely. Remove the air filter cover from the air filter housing (Fig. 23).
2. Remove the air filter from the air filter housing.
3. Wash the air filter in detergent and water. Rinse the air filter thoroughly and allow it to dry.
4. Reinstall the air filter in the air filter housing (Fig. 23).
5. Insert the tab on the air filter cover into the hole in the air filter housing. Push the air filter cover back onto the air filter housing. Insert the cover screw into the air filter cover. Tighten the cover screw to secure the air filter cover (Fig. 23).

ADJUSTING THE IDLE SPEED
The cutting head will move when adjusting the idle speed. Wear all protective clothing and keep all bystanders, children, and pets at least 50 ft. away. Make adjustments with the unit supported by hand so that the cutting head does not contact the ground or any object. Keep all parts of your body away from the cutting head and muffler. Failure to follow these instructions could result in serious personal injury.

1. Start the engine. Refer to Starting and Stopping.
2. Release the throttle control and let the engine idle.
3. If the engine stops, increase the idle speed. Use a small Phillips screwdriver to turn the idle speed screw clockwise, 1/8 of a turn at a time, until the engine idles smoothly (Fig. 24).
4. If the cutting head spins when the engine idles, reduce the idle speed. Turn the idle speed screw counterclockwise, 1/8 of a turn at a time, until the cutting head stops moving (Fig. 24).

CLEANING AND STORAGE

CLEANING
To avoid serious personal injury, always stop the engine and allow it to cool before cleaning or maintaining the unit. Use a small brush to clean 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. Wipe off any moisture with a soft cloth.

STORAGE

• Never store a fueled unit 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.

Short-term Storage (1-2 weeks)
Store the unit in a horizontal position. If 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.
2. Start the engine and allow it to run until it stalls. This ensures that all fuel has been drained from the carburetor.
3. Allow the engine to cool. Remove the spark plug and put 5 drops of any high quality motor oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.
4. Thoroughly clean the unit and inspect it for any loose or damaged parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts.
5. Store the unit in a horizontal position. If horizontal storage is not possible, store unit vertically with engine at top.

TRANSPORTATION
Transport the unit in a horizontal position. If not possible, transport the unit vertically with the engine at the top. Secure the trimmer shaft to prevent damage during transport.

TROUBLESHOOTING

THE ENGINE WILL NOT START

The fuel tank is empty| Fill the fuel tank with fresh fuel
The primer bulb was not pressed enough| Press the primer bulb 10 times
The fuel is old (over 30 days)| Drain the fuel tank and add fresh fuel
The spark plug is fouled| Replace the spark plug
 |
THE ENGINE WILL NOT IDLE
The air filter is dirty| Clean or replace the air filter
The fuel is old (over 30 days)| Drain the fuel tank and add fresh fuel
 |
THE ENGINE WILL NOT ACCELERATE
The fuel is old (over 30 days)| Drain the fuel tank and add fresh fuel
The cutting head is bound with grass| Stop the engine and clean the cutting head
The air filter is dirty| Clean or replace the air filter
 |
THE ENGINE LACKS POWER OR STALLS
The fuel is old (over 30 days)| Drain the fuel tank and add fresh fuel
The air filter is dirty| Clean or replace the air filter
The spark plug is fouled| Replace the spark plug

PARTS

WARRANTY

LIMITED THREE-YEAR WARRANTY
3-year limited warranty on all Senix 4QL series gasoline powered equipment. FOR THREE YEARS from the original date of retail purchase this Senix product is warranted against defects in materials or workmanship on power tools. Defective product will receive free repair.* This warranty does not cover normal wear of parts and components such as cutting chain, line or blades nor does this warranty cover product transportation cost for warranty or service. Warranty is subject to the following conditions

• Warranty applies to the original purchaser at retail and is not transferrable*
• Warranty Registration at www.senixtools.com
• The tool has not been misused, abused, neglected, altered, modified or repaired by anyone other than an authorized service center
• Only genuine Senix accessories have been used with or on this product
• The tool has been subjected to normal wear and tear
• The tool has not been used for trade or professional purposes
• The tool has not been used for rental purposes
• This warranty only covers defects arising under normal usage and does not cover any malfunction, failure or defect resulting from misuse, abuse (including overloading the product, exposure to water or rain) accidents, neglect or lack of proper installation and improper maintenance or storage. To locate your nearest Senix service provider call toll free at 800-261-3981 or email us at service@senixtools.com

Additional Limitations
Any implied warranty granted under state law, including warranties of merchantability or fitness for a particular purpose, are limited to three years from the date of purchase on power tools and chargers and seven years on batteries. The manufacturer is not responsible for direct, indirect, incidental or consequential damages. Some states and provinces do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental damages, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state or province to province. The YAT USA declines any responsibility in regard to civil liability arising from abusive use or not in conformity with proper use and maintenance of the machine as described in the operator’s manual. YAT USA is not responsible for direct, indirect, incidental or consequential damages. After the purchase, the manufacturer recommends proper maintenance of the machine and to read the operator’s manual before using the machine. *Original purchase receipt may be required for proof of purchase For customer service contact us toll free at 1-800-261-3981 or Senixtools.com. YAT USA, Inc. 9048 E Bahia Dr, suite 105, Scottsdale, AZ 85260

References

• SENIX Tools has you covered in the yard and in the shop
• SENIX Tools has you covered in the yard and in the shop

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