1. Safety Information
Always prioritize safety when operating the Husqvarna 122L Gas String Trimmer. Adhere to the following guidelines:
- Always wear eye protection and sturdy shoes.
- Keep bystanders and pets at a safe distance from the operating area.
- Do not operate the trimmer near flammable materials.
- Keep hands and feet away from the cutting path during operation.
- Always turn off the trimmer and allow the engine to cool completely before refueling.
2. Product Overview
The Husqvarna 122L Gas String Trimmer is designed for efficient and comfortable trimming. Its lightweight design and intuitive controls make yard maintenance simple. It features a T25 Tap 'n' Go trimmer head for easy line management and Smart Start technology for quick engine ignition.

The Husqvarna 122L Gas String Trimmer, showcasing its overall design and components.
Key Features:
- SMART START TECHNOLOGY: Specially-designed engine and starter for easy and fast starting with minimum effort.
- QUICK START WITH AIR PURGE: Air purge removes air from carburetor and fuel system for easy starting.
- EASY TO CONTROL: Simple to use and maneuver for efficient trimming.
- LIGHTWEIGHT DESIGN: For more comfortable use during extended operation.
- HIGH LINE CAPACITY: T25 Tap 'n' Go trimmer head is easy to use and refill.
- STRAIGHT SHAFT: Provides extended reach for various trimming tasks.
3. Setup
Assembly:
The Husqvarna 122L Gas String Trimmer requires some assembly. Please refer to the detailed assembly instructions provided in the packaging for step-by-step guidance on attaching the shaft, handle, and guard. Ensure all components are securely fastened before use.
Fueling the Trimmer:
This is a 2-cycle gas trimmer and requires a specific fuel mixture. Always use a mixture of gasoline and 2-cycle engine oil at a 50:1 ratio (50 parts gasoline to 1 part oil). Using an incorrect fuel mixture can damage the engine and void the warranty.

The translucent fuel tank allows for easy monitoring of fuel levels.
To refuel:
- Ensure the engine is off and cool.
- Carefully open the fuel cap.
- Pour the pre-mixed fuel into the tank, avoiding overfilling.
- Securely close the fuel cap.
4. Operating Instructions
Starting the Trimmer:
The Husqvarna 122L features Smart Start technology for easier starting. Follow these steps:

A hand pulling the starter cord of the Husqvarna 122L, demonstrating the SmartStart feature.
- Press the primer bulb 6 to 10 times until fuel is visible in the bulb.
- Move the blue engine choke lever down to the CHOKE position.
- Hold the unit firmly on the ground. Firmly grip the starter handle and pull quickly until the engine starts.
- If necessary, repeat pulling the starter handle until the engine starts.
- Once the engine starts, move the blue engine choke lever UP to the RUN position.
Using the Trimmer:
To operate the trimmer, you must engage the safety switch and then the trigger. This is a safety feature to prevent accidental starting.

A person using the Husqvarna 122L, highlighting its lightweight design for comfortable use.
- Hold the safety switch down with one hand.
- With the safety switch engaged, pull the trigger to activate the trimmer head.
- To stop the trimmer, push the stop button located on the handle.

The Husqvarna 122L features LowVib® Technology, significantly reducing vibrations for user comfort.
Line Advancement (T25 Tap 'n' Go Head):
The T25 Tap 'n' Go trimmer head allows for easy line advancement during operation.

Close-up of the T25 Tap 'n' Go trimmer head, designed for easy line advancement.
To advance the line, lightly tap the trimmer head on the ground while the engine is running at full throttle. The centrifugal force will feed out new line.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your Husqvarna 122L Gas String Trimmer.
- Cleaning: After each use, clean the trimmer head, shaft, and engine housing to remove grass clippings, dirt, and debris.
- Air Filter: Periodically inspect and clean or replace the air filter to ensure proper engine breathing.
- Spark Plug: Check the spark plug for wear and proper gap. Replace if necessary.
- Trimmer Line: Inspect the trimmer line for wear and replace as needed. Ensure you use the correct diameter line for the T25 head.
- Fuel System: For long-term storage, drain the fuel tank and run the engine until it stops to clear the carburetor of fuel.
6. Troubleshooting
Here are some common issues and potential solutions for your Husqvarna 122L Gas String Trimmer:
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine does not start | Incorrect starting procedure, no fuel, stale fuel, clogged fuel filter, fouled spark plug. | Review starting instructions, check fuel level and freshness, clean/replace fuel filter, inspect/replace spark plug. |
| Engine starts but dies when warm | Ignition coil issue, carburetor adjustment needed, air filter clogged. | Clean air filter. If problem persists, professional service may be required for ignition coil or carburetor adjustment. |
| Clangy noise from engine area | Normal sound due to clutch design. | This is typically normal operation for this model's clutch. No action required unless performance is affected. |
| Limited power or engine bogs down | Improper fuel mix, clogged air filter, dull trimmer line, carburetor issues. | Ensure correct 50:1 fuel mix, clean air filter, replace trimmer line, or consult a service technician for carburetor adjustment. |
7. Specifications
| Attribute | Value |
|---|---|
| Brand | Husqvarna |
| Model Number | 122L |
| Power Source | Gas Powered |
| Engine Displacement | 22-cc, 2-Cycle |
| Item Weight | 11.5 Pounds |
| Cutting Width | 17 inches |
| Product Dimensions | 67.4"L x 13.7"W |
| Assembly Required | Yes |
| Recommended Uses | Edging, Trimming |
| UPC | 193028785995 |
8. Warranty & Support
The Husqvarna 122L string trimmer comes with a 2-year warranty for residential use. Please retain your proof of purchase for warranty claims.
Optional protection plans are available for extended coverage:
- 2-Year Protection Plan: $21.99
- 3-Year Protection Plan: $28.99
- Complete Protect: $16.99/month (covers all eligible past and future purchases)
For further support, product information, or to explore other Husqvarna products, please visit the Official Husqvarna Store.