Husqvarna Trimmers Owner’s Manual

122C, 122LK
Owner’s Manual

Introduction

Product description
The product is a grass trimmer with a combustion engine.
Work is constantly in progress to increase your safety and efficiency during operation. Speak to your servicing dealer for more information.

Intended use
The product is used with a trimmer head to cut grass.
Do not use the product for other tasks than grass trimming and grass clearing.
Note: National regulations can set limit to the operation of the product.

Product overview

Symbols on the product

| WARNING! This product is dangerous. Injury or death can occur to the operator or bystanders if the product is not used carefully and correctly.  To prevent injury to the operator or bystanders, read and obey all safety instructions in the operator’s manual.
---|---
| Read the operator’s manual carefully and make sure that you understand the instructions before use.
| Use a protective helmet in locations where objects can fall on you. Use approved hearing protection. Use approved eye protection.
| LaJhggHEdq5yKkPJdBXLMoAubyHwAB4ttD
| The product agrees with the applicable EC directives.
| The product can cause objects to eject, which can cause injury.
| Keep a minimum of 15 m distance to persons and animals during the operation of the product.
| Use approved protective gloves.
| Use heavy-duty slip-resistant boots.
| Only use flexible cutting wire. Do not use metal cutting attachments.
| Noise emissions to the environment according to European Directive 2000/14/EC and New South Wales legislation “Protection of the  Environment Operations (Noise Control) Regulation 2017”. Noise emission data can be found on the machine label and in the Technical data chapter.
| Air purge bulb.
| Choke.
yyyywwxxxx| The rating plate shows the serial number. yyyy is the production year, WW is the production week.

Note: Other symbols/decals on the product refer to certification requirements for other commercial areas.

Euro V Emissions

WARNING: Tampering with the engine voids the EU type approval of this product.

Customer assistance
For customer assistance, call: 1-800-487-5951 or visit www.husqvarna.com.
Product liability
As referred to in the product liability laws, we are not liable for damages that our product causes if:

• the product is incorrectly repaired.
• the product is repaired with parts that are not from the manufacturer or not approved by the manufacturer.
• the product has an accessory that is not from the manufacturer or not approved by the manufacturer.
• the product is not repaired at an approved service center or by an approved authority.

Safety

Safety definitions
Warnings cautions and notes are used to point out especially important parts of the manual.

WARNING: Used if there is a risk of injury or death for the operator or bystanders if the instructions in the manual are not obeyed.

CAUTION: Used if there is a risk of damage to the product, other materials, or the adjacent area if the instructions in the manual are not obeyed.

Note: Used to give more information that is necessary for a given situation.

General safety instructions
WARNING: Read the warning instructions that follow before you use the product.

• Use the product correctly. Injury or death is a possible result of incorrect use. Only use the product for the tasks found in this manual. Do not use the product for other tasks.

• Obey the instructions in this manual. Obey the safety symbols and the safety instructions. If the operator does not obey the instructions and the symbols, injury, damage or death is a possible result.

• Do not discard this manual. Use the instructions to assemble, operate, and keep your product in good condition. Use the instructions for the correct installation of attachments and accessories. Only use approved attachments and accessories.

• Do not use a damaged product. Obey the maintenance schedule. Only do the maintenance work that you find instruction about in this manual. An approved service center must do all other maintenance work.

• This manual cannot include all situations that can occur when you use the product. Be careful and use your common sense. Do not operate the product or do maintenance on the product if you are not sure about the situation. Speak to a product expert, your dealer, service agent or approved service center for information.

• Disconnect the spark plug cable before you assemble the product, put the product into storage or do maintenance.

• Do not use the product if it is changed from its initial specification. Do not change a part of the product without approval from the manufacturer. Only use parts approved by the manufacturer. Injury or death
  is a possible result of incorrect maintenance.

• Do not breathe in the fumes from the engine. Long-term inhalation of the engine’s exhaust fumes is a health risk.

• Do not start the product indoors or near flammable material. The exhaust fumes are hot and can contain a spark that can start a fire. Not sufficient airflow can cause injury or death because of asphyxiation or carbon monoxide.

• When you use this product the engine makes an electromagnetic field. The electromagnetic field can cause damage to medical implants. Speak to your physician and medical implant manufacturer before you operate the product.

• Do not let a child operate the product. Do not let a person without knowledge of the instructions operate the product.

• Make sure that you always monitor a person, with decreased physical capacity or mental capacity, that uses the product. A responsible adult must be there at all times.

• Lock the product in an area that children and unapproved persons cannot access.

• The product can eject objects and cause injuries.
  Obey the safety instructions to decrease the risk of injury or death.

• Do not go away from the product when the engine is on.

• The operator of the product is responsible if an accident occurs.

• Make sure that parts are not damaged before you use the product.

• Make sure that you are at a minimum of 15 m (50 ft) away from other persons or animals before you use the product. Make sure that persons in the adjacent area know that you will use the product.

• Refer to national or local laws. They can prevent or decrease the operation of the product in some conditions.

• Do not use the product if you are fatigued or influenced by alcohol, drugs or medicine. They can have effects on your vision, alertness, coordination or judgment.

Safety instructions for assembly

WARNING: Read the warning instructions that follow before you use the product.

• Remove the spark plug cap from the spark plug before you assemble the product.
• Use approved protective gloves.
• Make sure that you assemble the cover and shaft correctly before you start the engine.

Safety instructions for operation

• Make sure the product is fully assembled before you use it.

• Before a start, move the product 3 m (10 ft) away from the position where you filled the fuel tank. Put the product on a flat surface. Make sure that the cutting attachment does not touch the ground or other objects.

• The product can cause objects to eject, which can cause damage to the eyes. Always use approved eye protection when you operate the product.

• Be careful, a child can come near the product without your knowledge during operation.

• Do not operate the product if there are persons in the work area. Stop the product if a person goes into the work area.

• Make sure that you are always in control of the product.

• Do not use the product if you cannot receive aid if an accident occurs. Always make sure others know you will operate the product before you start to operate the product.

• Do not turn with the product before you make sure that no persons or animals are in the safety area.

• Remove all unwanted materials from the work area before you start. If the cutting attachment hits an object, the object can eject and cause injury or damage. Unwanted material can wind around the cutting attachment and cause damage.

• Do not use the product in bad weather (fog, rain, strong winds, risk of lightning or other weather conditions.). Dangerous conditions (such as slippery surfaces) can occur because of bad weather.

• Make sure that you can move freely and work in a stable position.
  

• Make sure that you cannot fall when you use the product. Do not tilt when you operate the product.

• Always hold the product with your two hands. Hold the product on the right side of your body.
  

• Operate the product with the cutting attachment below your waist.

• If the choke control is in the choke position when the engine starts, the cutting attachment starts to turn.

• Do not touch the bevel gear after the engine stops. The bevel gear is hot after the engine stops. Hot areas can cause injury.

• Stop the engine before you move the product.

• Do not put down the product with the engine on.

• Before you remove the unwanted materials from the product, stop the engine and wait until the cutting attachment stops. Let the cutting attachment stop before you or an  aid remove the cut material.

Personal protective equipment
WARNING : Read the warning instructions that follow before you use the product.

• Always use approved personal protective equipment when you use the product. Personal protective equipment cannot fully prevent injury but it decreases the degree of injury if an accident does occur. Let your dealer help you select the right equipment.

• Use a protective helmet where there is a risk of falling objects.
  

• Use approved hearing protection that provides adequate noise reduction. Long-term exposure to noise can result in permanent hearing impairment.
  

• Use approved eye protection. If you use a visor, you must also use approved protective goggles.
  Approved protective goggles must comply with the ANSI Z87.1 standard in the USA or EN 166 in EU countries.
  

• Use gloves when necessary, for example when you attach, examine or clean the cutting equipment.
  

• Use sturdy non-slip boots.
  

• Use clothing made of a strong fabric. Always use heavy, long pants and long sleeves. Do not use loose clothing that can catch on twigs and branches. Do not wear jewelry,  short pants, sandals or go with bare feet. Put your hair up safely above shoulder level.

• Keep first aid equipment close at hand.
  

Safety devices on the product
WARNING: Read the warning instructions that follow before you use the product.

• Do not use a product with defective safety devices.
• Do a check of the safety devices regularly. Refer to the Maintenance Schedule on page 14.
•  If the safety devices are defective, speak to your Husqvarna servicing dealer.

To do a check of the throttle trigger lockout

1. Make sure that the throttle trigger lockout (A) and throttle trigger (B) move freely and that the return spring works correctly.
   

2.  Push down the throttle trigger lockout and make sure that it goes back to its initial position when you release it.
   

3. Make sure that the throttle trigger is locked at the idle position when the throttle trigger lockout is released.
   

4. Start the product and apply full throttle.

5. Release the throttle trigger and make sure that the blades stop and stay stationary.
   WARNING: If the blades move when the throttle trigger is in the idle position, then the carburetor’s idle speed must be adjusted. Refer to To adjust the idle speed on page 14.

To do a check of the stop switch

1. Start the engine.
2. Move the stop switch to the stop position and make sure that the engine stops.
   

To do a check of the cutting attachment guard
The cutting attachment guard stops objects that eject in the direction of the operator. It also prevents injuries that occur if you touch the cutting attachment.

1. Stop the engine.
2. Do a visual check for damages, for example, cracks.
3. Replace the cutting attachment guard if it is damaged.

Muffler

• Do not use an engine with a damaged muffler. A damaged muffler increases the noise level and the risk of fire. Keep a fire extinguisher near.
• Examine regularly that the muffler is attached to the product.
• Do not touch the engine or the muffler when the engine is on. Do not touch the engine or the muffler for a while after the engine stops. Hot surfaces can cause injuries.
• A hot muffler can cause a fire. Be careful, if you use the product near flammable liquids or fumes.
• Do not touch the parts in the muffler, if the muffler is damaged. The parts can contain some carcinogenic chemicals.

Cutting attachment
WARNING: Read the warning instructions that follow before you use the product.

• Do regular maintenance. Let an approved service center regularly examine the cutting attachment to do adjustments or repairs.
  • The performance of the cutting attachment increases.
  • The life of the cutting attachment increases.
  • The risk of accidents decreases.

• Only use an approved cutting attachment guard.
  Refer to Accessories on page 18.

• Do not use a damaged cutting attachment.

Fuel safety

WARNING: Read the warning instructions that follow before you use the product.

• Do not mix the fuel indoor or near a heat source.
• Do not start the product if there is fuel or engine oil on the product. Remove the unwanted fuel/oil and let the product dry. Remove unwanted fuel from the product.
• If you spill fuel on your clothing, change clothing immediately.
• Do not get fuel on your body, it can cause injury. If you get fuel on your body, use a soap and water to remove the fuel.
• Do not start the engine if you spill oil or fuel on the product or on your body.
• Do not start the product if the engine has a leak. Examine the engine for leaks regularly.
• Be careful with fuel. Fuel is flammable and the fumes are explosive and can cause injuries or death.
• Do not breathe in the fuel fumes, it can cause injury. Make sure that there is sufficient airflow.
• Do not smoke near the fuel or the engine.
• Do not put warm objects near the fuel or the engine.
• Do not add the fuel when the engine is on.
• Make sure that the engine is cool before you refuel.
• Before you refuel, open the fuel tank cap slowly and release the pressure carefully.
• Make sure there is sufficient airflow when refueling and mixing fuel (petrol and two-stroke oil) or draining the fuel tank.
• Fuel and fuel vapor is highly flammable and can cause serious injury when inhaled or allowed to come into contact with the skin. For this reason, observe caution when handling fuel and make sure there is sufficient airflow.
• Tighten the fuel tank cap carefully or a fire can occur.
• Move the product at a minimum of 3 m (10 ft)  from the position where you filled the tank before a start.
• Do not put too much fuel in the fuel tank.
• Make sure that a leak cannot occur when you move the product or fuel container.
• Do not put the product or a fuel container where there is an open flame, spark or pilot light. Make sure that the storage area does not contain an open flame.
• Only use approved containers when you move the fuel or put the fuel into storage.
• Empty the fuel tank before long-term storage. Obey the local law on where to dispose of fuel.
• Clean the product before long-term storage.
• Remove the spark plug cap before you put the product into storage to make sure that the engine does not start accidentally.

Safety instructions for maintenance
WARNING: Read the warning instructions that follow before you use the product.

• Stop the engine, make sure that the cutting attachment stops, and let the product cool down before you do the maintenance.
• Disconnect the spark plug cap before you do the maintenance.
• The exhaust fumes from the engine contain carbon monoxide, an odorless, poisonous, and very dangerous gas that can cause death. Do not run the product indoors or in closed spaces.
• The exhaust fumes from the engine are hot and can contain sparks. Do not run the product indoors or near flammable material.
• Accessories and changes to the product that are not approved by the manufacturer, can cause serious injury or death. Do not change the product. Always use original accessories.
• If the maintenance is not done correctly and regularly, there is an increased risk of injury and damage to the product.
• Only do the maintenance as this operator’s manual recommends. Let an approved Husqvarna service agent do all other servicing.
• Let an approved Husqvarna service agent do service on the product regularly.
• Replace damaged, worn, or broken parts.
• Refer to the instructions for the cutting attachment for the correct procedure to install the trimmer cord and correct cord diameter.
• Keep the teeth of the blade correctly sharpened. Obey our recommendations. Also, refer to the instructions on the blade package.

Assembly

Introduction

WARNING: Before you assemble the product, you must read and understand the safety chapter.

WARNING: Remove the spark plug cable from the spark plug before you assemble the product.

To attach the loop handle

1. Attach the loop handle to the shaft in compliance with the illustration and tighten.
   

2. Make sure that the loop handle attaches between the arrows on the shaft.

To attach the cutting attachment guard and the trimmer head (straight shaft)

1. Attach the cutting attachment guard (A) to the shaft
   with the bolt (L).

2. Attach the drive disc (B) to the output shaft.

3. Turn the output shaft until the hole in the drive disc aligns with the hole in the gear housing.

4. Put a small screwdriver (C) in the hole to lock the shaft.
   

5. Turn the trimmer head (H) counterclockwise to tighten the trimmer head to the gearbox. (Left-hand threads.)
   

To attach the cutting attachment guard and trimmer head (curved shaft)

1. Attach the guard. Tighten the nut.
   

2. Attach the dust cap on the shaft.
   

3. Hold the dust cup with an adjustable wrench to make sure the shaft does not turn.

4. Attach the trimmer head to the shaft. Turn the trimmer head clockwise.

To assemble the two-piece shaft

1. Turn the knob to loosen the coupling.
   

2. Align the tab (A) with the arrow (B) on the coupling.
   

3. Push the shaft into the coupling until it clicks into position.
   

4. Tighten the knob fully.
   

To disassemble the two-piece shaft

1. Turn the knob 3 turns or more to loosen the coupling.
   

2. Push and hold the button (C).

3. Hold tight in the end of the shaft that the engine is attached to.

4. Pull the attachment straight out of the coupling.
   

Operation

Introduction
WARNING: Before you operate the product, you must read and understand the safety chapter.

Fuel
This product has a two-stroke engine.
CAUTION: Incorrect type of fuel can result in engine damage. Use a mixture of gasoline and two-stroke oil.

Premixed fuel

• Use Husqvarna premixed alkylate fuel for best performance and extension of the engine life. This fuel contains less harmful chemicals compared to regular fuel, which decreases harmful exhaust fumes. The quantity of remains after combustion is lower with this fuel, which keeps the components of the engine cleaner.

To mix fuel
Gasoline

• Use good quality unleaded gasoline with a maximum of 10% ethanol contents.
  CAUTION: Do not use gasoline with an octane grade less than 90 RON/87 AKI. Use of a lower octane grade can cause engine knocking, which causes engine damages.

Two-stroke oil

• For best results and performance use Husqvarna two-stroke oil.
• If Husqvarna two-stroke oil is not available, use a two-stroke oil of good quality for air-cooled engines. Speak to your servicing dealer to select the correct oil.
  CAUTION: Do not use two-stroke oil for water-cooled outboard engines, also referred to as outboard oil. Do not use oil for four-stroke engines.

CAUTION: Small errors can influence the ratio of the mixture drastically when you mix small quantities of fuel. Measure the quantity of oil carefully and make sure that you get the correct mixture.

1. Fill half the quantity of gasoline in a clean container for fuel.
2. Add the full quantity of oil.
3. Shake the fuel mixture.
4. Add the remaining quantity of gasoline to the container.
5. Carefully shake the fuel mixture.
   CAUTION: Do not mix fuel for more than 1 month at a time.

To fill the fuel tank
WARNING: Obey the procedure that follows for your safety.

1. Stop the engine and let the engine become cool.

2. Clean the area around the fuel tank cap.
   

3. Shake the container and make sure that the fuel is fully mixed.

4. Remove the fuel tank cap slowly to release the pressure.

5. Fill the fuel tank.
   CAUTION: Make sure that there is not too much fuel in the fuel tank. The fuel expands when it becomes hot.

6. Tighten the fuel tank cap carefully.

7. Clean fuel spillage on and around the product.

8. Move the product 3 m/10 ft or more away from the refueling area and fuel source before you start the engine.

Note: To see where the fuel tank is on your product, refer to the Product overview on page 2.

To examine before start

1. Make sure that the product has no missing, damaged, loose or worn parts.
2. Make sure that nuts, screws and bolts are tightened.
3. Make sure that the trimmer head is not damaged.
4. Make sure that the air filter is not clogged.
5. Make sure that the safety devices on the product are not defective.
6. Make sure that the product has no fuel leaks.

To start a cold engine

1. Push the air purge bulb 10 times.
   

2. Set the choke control in the choke position.
   

3. Hold the body of the product on the ground with your left hand.
   CAUTION: Do not step on the product.

4. Pull the starter rope handle slowly with your right hand until you feel resistance. Then pull the starter rope handle quickly and with force until the engine starts or tries to start.
   WARNING: Do not twist the starter rope around your hand.

5. Set the choke control in the operation position.

6.  If the engine starts, push the throttle trigger lightly and let the engine run 60 seconds to become warm. If the engine does not start, pull the starter rope handle until the engine starts. Then push the throttle trigger lightly and let the engine run 60 seconds to become warm.
   CAUTION: Do not pull the starter rope to full extension and do not let go of the starter rope handle. This can cause damage to the product. Release the starter rope slowly.

To start a warm engine

1. Push the air purge bulb 10 times.
2. Pull the starter rope until the engine starts.

To stop the product

• Push the stop switch to stop the engine.
  

Note: The stop switch automatically goes back to its initial position.

To trim the grass

1. Hold the trimmer head immediately above the ground at an angle. Do not push the trimmer line into the grass.
   

2. Decrease the length of the trimmer line by 10-12 cm / 4-4.75 in.

3. Decrease the engine speed to decrease the risk of damage to plants.

4. Use 80 % throttle when you cut grass near objects.
   

To clear grass with a grass blade

1. Grass blades and grass cutters must not be used on woody stems.
2. A grass blade is used for all types of tall or coarse grass.
3. The grass is cut down with a sideways, swinging movement, where the movement from right to left is the clearing stroke and the movement from left to right is the return stroke. Let the left-hand side of the blade (between 8 and 12 o’clock) do the cutting.
4. if the blade is angled to the left when clearing grass, the grass will collect in a line, which makes it easier to collect, e.g. by raking.
5. Try to work rhythmically. Stand firmly with your feet apart. Move forward after the return stoke and stand firmly again.
6. Let the support cup rest lightly against the ground. It is used to protect the blade from hitting the ground.
7. Reduce the risk of material wrapping around the blade by always working at full throttle and avoiding the previously cut material during the return stroke.
8. Stop the engine, unclip the harness and place the machine on the ground before you start to collect the cut material.

To cut the grass

1. Make sure that the trimmer line is parallel to the ground when you cut the grass.
   

2. Do not push the trimmer head to the ground. This can cause damage to the product.

3. Move the product from side to side when you cut grass. Use full speed.
   

To sweep the grass
The airflow from the rotating trimmer line can be used to remove cut grass from an area.

1. Hold the trimmer head and the trimmer line parallels to the ground and above the ground.
2. Apply full throttle.
3. Move the trimmer head from side to side and sweep the grass.

WARNING: Clean the trimmer head cover each time you assemble a new trimmer line to prevent unbalance and vibrations in the handles. Also, do a check of the other parts of the trimmer head and clean it if necessary.

Grass trimmer head

• Make sure that you wind the grass trimmer line tightly and equally around the drum to decrease the vibration.
• Use only the approved grass trimmer heads and grass trimmer lines. Refer to Accessories on page 18.
• Use the correct length of the grass trimmer line. A long grass trimmer line uses more engine power than a short grass trimmer line.
• Make sure that the cutter on the cutting attachment guard is not damaged.
• Soak the grass trimmer line in the water for 2 days before you attach the grass trimmer line to the product. This increases the life of the grass trimmer line.
• Refer to the instructions for the cutting attachment to use the correct procedure to load the cord and the correct cord diameter.

Maintenance

Introduction
WARNING: Before you do maintenance, you must read and understand the safety chapter.

For all servicing and repair work on the product, special training is necessary. We guarantee the availability of professional repairs and servicing. If your dealer is not a service agent, speak to them for information about the nearest service agent.

Maintenance schedule

Maintenance

| Daily| Weekly|

Monthly

---|---|---|---
Clean the external surface.| X| |
Clean the air filter. Replace if it is necessary.| X| |
Examine the function of the throttle trigger lock and the throttle.| X| |
Examine the stop switch.| X| |
Examine the guards.| X| |
Examine the trimmer head.| X| |
Examine the locknut.| X| |
Examine for fuel leaks.| X| |
Make sure that the grass blade is aligned with the center, that it is sharp and does not have damages on the blade or the center hole.| X| |
Make sure that the cutting attachment does not rotate at idle speed.| X| |
Apply grease to the two-piece shaft.| | X|
Examine the starter rope handle and the starter rope.| | X|
Examine the bevel gear grease.| | X|
Clean the external surface of the spark plug. Remove the spark plug and meas- ure the electrode gap. Adjust the electrode gap or replace the spark plug.| | X|
Clean the cooling system.| | X|
Clean or replace the spark arrestor screen on the muffler.| | X|
Clean the external surface of the carburetor and the area around it.| | X|
Examine the fuel filter for contamination.| | | X
Examine the fuel hose for damage.| | | X
Examine all cables and connections.| | | X
Examine the clutch, the clutch springs, and the clutch drum for wear.| | | X
Replace the spark plug.| | | X

To adjust the idle speed
Make sure that the air filter is clean and the air filter cover is attached before you adjust the idle speed.

1. Turn the idle speed screw T, which is identified with a “T” mark, clockwise until the cutting attachment starts to rotate.
   

2. Turn the idle speed screw T, which is identified with a “T” mark, counterclockwise until the cutting attachment stops.

3. The idle speed must be below the speed when the cutting attachment starts to rotate. The idle speed is correct when the engine operates smoothly in all positions.

To do maintenance on the spark arrester screen

• Use a wire brush to clean the spark arrester screen.
  

To clean the cooling system

• Clean the air intake (A) on the starter and the cooling fins (B) on the cylinder with a brush.
  

To examine the spark plug
CAUTION: Use the recommended spark plug. Make sure that the replacement is the same as the manufacturer-supplied part. An incorrect spark plug can cause damage to the product. Make sure that the spark plug is installed with a suppressor. Speak to your servicing dealer for more information.

1. Examine the spark plug when:
   a) the engine is low on power.
   b) the engine is not easy to start.
   c) the engine does not operate correctly at idle speed.

2. If, the engine is not easy to start or operate, examine the spark plug for unwanted materials. To decrease the risk of unwanted material on the spark plug electrodes:
   a) make sure that the idle speed is correctly adjusted.
   b) make sure that the fuel mixture is correct.
   c) make sure that the air filter is clean.

3. Clean the spark plug if it is dirty. Make sure that the electrode gap is correct. Refer to Technical data on page 17.
   

4. Replace the spark plug when it is necessary.

To apply grease to the two-piece shaft

• Apply grease to the end of the drive shaft after every 30 hours of operation.

To clean the air filter

1. Remove the air filter cover and remove the air filter.

2. Clean the air filter with warm soap water. Make sure that the air filter is dry before you install it.

3. Replace the air filter if it is too dirty to fully clean it.
   Always replace a damaged air filter.

4. If your product has a foam air filter, apply air filter oil.
   Only apply air filter oil to a foam filter. Do not apply oil to a felt filter.

To apply air filter oil to the air filter
CAUTION: Always use special air filter oil on foam air filters. Do not use other types of oil.
WARNING: Do not get oil on your body.

1. Remove the air filter cover and remove the air filter.
   

2. Put the air filter in a plastic bag.

3. Put the air filter oil in the plastic bag.
   

4. Push the plastic bag to make sure the oil supplies equally across the air filter.

5. Push on the air filter, while in the bag, to remove the air filter oil that is not necessary. Remove the air filter from the bag.

6. Install the air filter.

To add grease to the bevel gear

• Make sure that the bevel gear is filled ¾ full with bevel gear grease.
  

Troubleshooting

The engine does not start

Check

| Possible cause|

Procedure

---|---|---
Starter pawls.| The starter pawls cannot move freely.| Remove the starter cover and clean around the starter pawls.
Let an approved servicing dealer help you.
Fuel tank.| Incorrect fuel type.| Drain the fuel tank and fill it with the correct fuel.
Check| Possible cause| Procedure
Spark plug.| The spark plug is dirty or wet.| Make sure that the spark plug is dry and clean.
| The spark plug electrode gap is incorrect.| Clean the spark plug. Make sure that the electrode gap is correct. Make sure that the spark plug has a suppressor.
| | Refer to Technical data on page 17 for the correct electrode gap.
| The spark plug is loose.| Tighten the spark plug.

The engine starts but stops again

Check

| Possible cause|

Procedure

---|---|---
Fuel tank| Incorrect fuel type.| Empty the fuel tank and fill it with the correct fuel.
Air filter| The air filter is clogged.| Clean the air filter.

Transportation and storage

• Always allow the product to cool down before storage.
• For storage and transportation of the product and fuel, make sure that there are no leaks or fumes. Sparks or open flames, for example from electrical devices or boilers,  can start a fire.
• Always use approved containers for storage and transportation of fuel.
• Empty the fuel before transportation or before long-term storage. Discard the fuel at an applicable disposal location.
• Attach the transport guard during transportation and storage.
• Remove the spark plug cap from the spark plug.
• Attach the product during transportation. Make sure that it cannot move.
• Clean and do servicing on the product before long-term storage.

Technical data

Technical data

| 122C| 122LK
---|---|---
Engine
Cylinder displacement, cm3| 21.7| 21.7
Idle speed, rpm| 2900| 2900
Recommended max. speed, rpm| 7200| 9100
Speed of output shaft, rpm| 7200| 6232
Power / Max. engine output, acc. to ISO 8893, kW/hp @ rpm| 0.6/0.8 @ 7800| 0.6/0.8 @ 7800
Catalytic converter muffler| Yes| Yes
Speed-regulated ignition system| No| No
Ignition system
Spark plug| HQT-4 672201| HQT-4 672201
Electrode gap, mm| 0.5| 0.5
Fuel system
Fuel tank capacity, l/cm³| 0.3/300| 0.3/300
Weight
Weight without fuel, cutting attachment and guard, kg| 4.4| 4.8
Noise emissions1
Sound power level, measured, dB(A)| 102| 104
Sound power level, guaranteed (LWA), dB(A)| 104| 108
Noise levels2
Equivalent sound pressure level at the operator’s ear, measured ac- cording to EN ISO 11806 and ISO 22868, dB(A):| 88| 90
Vibration levels3
Equivalent vibration level (ahv, eq) equipped with trimmer head, left handle, m/s2| 5.0| 3.6
Equivalent vibration level (ahv, eq) equipped with trimmer head, right handle, m/s2| 3.6| 3.5

Accessories

122C

Approved accessories| Type| Cutting attachment guard
Threaded shaft| 3/8 R| –
Trimmer head| T25 (Ø 2.0 – 2.7 mm cord)| 574 47 95-01
T25C (Ø 2.0 – 2.7 mm cord)| 574 47 95-01

1. Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/EC. The reported sound power level for the product has been measured with the original cutting attachment that gives the highest level. The difference between guaranteed and measured sound power is that the guaranteed sound power also includes dispersion in the measurement result and the variations between different products of the same model according to Directive 2000/14/EC.
2. Reported data for equivalent sound pressure levels for the product has a typical statistical dispersion (standard deviation) of 1 dB (A).
3. Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s²

122LK

Approved accessories| Type| Cutting attachment guard
Threaded shaft| M10| –
Trimmer’s head| T25 (Ø 2.0 – 2.7 mm cord)| 574 19 87-01

The following attachments are recommended for the specified models.

EC Declaration of Conformity

EC Declaration of Conformity

Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500 declares that the grass trimmers
Husqvarna 122C, 122LK with serial numbers dating from 2016 onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with the  requirements of the COUNCIL’S DIRECTIVE:

• of May 17, 2006 “relating to machinery” 2006/42/EC.
• of February 26, 2014 “relating to electromagnetic compatibility” 2014/30/EU.
• of May 8, 2000 “relating to the noise emissions in the environment” 2000/14/EC. Conformity assessment according to Annex V. For information relating to noise  emissions, see the Technical data on page 17
• of June 8, 2011 “on the restriction of the use of certain hazardous substances in electrical and electronic equipment” 2011/65/EU. The following standards have been  applied:

EN ISO 12100:2010, EN ISO 11806-1:2011, ISO 14982:1998, CISPR 12:2007+A1:2009, EN IEC 63000:2018

RISE SMP Svensk Maskinprovning AB, Box 7035, SE-750 07 Uppsala, Sweden, has performed voluntary type examination on behalf of Husqvarna AB.

The certificates are numbered: 122C – SEC/10/2271, 122LK – SEC/10/2272

RISE SMP Svensk Maskinprovning AB, has also verified agreement with appendix V of the council’s directive 2000/14/EG.
The certificates are numbered: 122C – 01/164/068, 122LK – 01/164/067.
Huskvarna 2020-08-25

Par Martinsson, Development Manager (Authorized representative for Husqvarna AB and responsible for technical documentation.)

Original instructions

1141017-38

Documents / Resources

| Husqvarna Trimmers [pdf] Owner's Manual
Husqvarna, 122C, 122LK, Trimmers, grass trimmer, combustion, engine
---|---

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>