1. Introduktion
This manual provides essential information for the safe and efficient operation, maintenance, and care of your STIHL FS 38 Gasoline Brush Cutter. Please read this manual thoroughly before initial use and keep it in a safe place for future reference.
Tilsigtet brug
The STIHL FS 38 is a small, lightweight gasoline brush cutter designed for trimming lawns and clearing light vegetation around obstacles such as trees, paths, and stairs in private gardens. It is not intended for heavy-duty commercial use or cutting thick brush.
Generelle sikkerhedsoplysninger
ADVARSEL: Always wear appropriate safety gear, including eye and ear protection, when operating the tool. Be aware of potential flying debris or cutting hazards, especially when using metal tools. Always follow guidelines for handling and storing fuel for gasoline-powered tools. Failure to follow these instructions may result in serious injury.
2. Produktet er slutview
The STIHL FS 38 is characterized by its compact design and user-friendly features.
- Adjustable loop handle for comfortable operation.
- Letvægtsdesign for nem manøvredygtighed.
- Efficient gasoline engine for reliable performance.
- Suitable for various trimming tasks in home gardens.

Figure 1: The STIHL FS 38 Gasoline Brush Cutter, showcasing its compact design and adjustable loop handle.
3. Opsætning og montering
The STIHL FS 38 requires some assembly before first use. Please follow these steps carefully.
3.1 Udpakning og inspektion
- Fjern forsigtigt alle komponenter fra emballagen.
- Inspect all parts for any signs of damage during transit. If any damage is found, do not proceed with assembly and contact your dealer.
- Sørg for, at alle anførte komponenter er til stede.
3.2 Montering af håndtag
Attach the adjustable loop handle to the shaft. Ensure it is securely fastened at a comfortable operating position. Refer to the included assembly diagram for precise placement and tightening instructions.
3.3 Guard Installation
Install the cutting attachment guard. This guard is crucial for operator safety and must always be in place during operation. Ensure it is firmly attached according to the instructions.
3.4 Fueling the Brush Cutter
The STIHL FS 38 operates on a gasoline-oil mixture.
- Use only high-quality unleaded gasoline mixed with STIHL 2-stroke engine oil at the recommended ratio (typically 50:1, but always check the product label or a separate fuel mixing guide).
- Bland brændstoffet i en ren, godkendt brændstofbeholder.
- Sørg for, at motoren er afkølet, inden du påfylder brændstof.
- Open the fuel cap slowly to release any pressure.
- Fill the tank carefully, avoiding spills. Do not overfill.
- Luk tankdækslet forsvarligt efter påfyldning.
- ADVARSEL: Fuel is highly flammable. Avoid open flames, sparks, and smoking during refueling. Refuel in a well-ventilated area.
4. Betjeningsvejledning
4.1 Kontroller før drift
- Tjek brændstofniveauet.
- Inspect the cutting attachment for damage or wear.
- Sørg for, at alle skruer og fastgørelseselementer er spændte.
- Verify the cutting guard is correctly installed.
- Wear all required personal protective equipment (PPE).
4.2 Start af motoren
- Place the brush cutter on a firm, level surface.
- Set the master control lever to the cold start position (choke).
- Press the fuel pump (primer) several times until fuel is visible in the return line.
- Træk fast i startsnoren, indtil motoren starter kortvarigt.
- Move the master control lever to the half-throttle position.
- Træk i startsnoren igen, indtil motoren starter.
- Once the engine is running, briefly blip the throttle to disengage the choke and allow the engine to warm up.
4.3 Driftsteknikker
- Hold the brush cutter firmly with both hands.
- Oprethold en stabil holdning.
- Keep the cutting attachment away from your body and other people.
- Use a sweeping motion to cut grass and light vegetation.
- Avoid contact with hard objects like stones, fences, or tree trunks.
- Do not operate the brush cutter in wet conditions or on steep slopes where you cannot maintain secure footing.
4.4 Standsning af motoren
To stop the engine, move the master control lever to the "STOP" or "0" position.
5. Vedligeholdelse
Regular maintenance ensures the longevity and safe operation of your STIHL FS 38. Always perform maintenance tasks with the engine switched off and cool.
5.1 Efter hver brug
- Clean the brush cutter, especially the cutting head and air intake.
- Check the cutting attachment for wear or damage. Replace if necessary.
- Inspect the air filter and clean if dirty.
- Check all visible screws and nuts for tightness.
5.2 Periodisk vedligeholdelse
- Tændrør: Inspect and clean the spark plug. Replace if electrodes are worn or fouled.
- Brændstoffilter: Kontroller og udskift brændstoffilteret efter behov.
- Smøring af gearkasse: Check and replenish gearbox grease if applicable (refer to specific product diagrams).
- Generel inspektion: Have your brush cutter inspected by an authorized STIHL service dealer annually.
5.3 Opbevaring
- For long-term storage, drain the fuel tank completely or run the engine until it runs out of fuel.
- Rengør hele maskinen grundigt.
- Store in a dry, well-ventilated area, out of reach of children and unauthorized persons.
- Ensure the cutting attachment is protected to prevent accidental injury.
6. Fejlfinding
This section addresses common issues you might encounter with your STIHL FS 38.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Motoren starter ikke | Intet brændstof eller forkert brændstofblanding Spark plug fouled or defective Chokerindstillingen er forkert | Kontroller brændstofniveau og blanding Rengør eller udskift tændrøret Adjust choke according to starting procedure |
| Engine runs, but cutting attachment does not rotate | Koblingsproblem Damaged drive shaft | Kontakt en autoriseret serviceforhandler |
| Tab af strøm under drift | Beskidt luftfilter Forkert brændstofblanding Worn cutting attachment | Rengør eller udskift luftfilteret Ensure correct fuel mixture Replace cutting attachment |
For problems not listed here or if solutions do not resolve the issue, please contact an authorized STIHL service dealer.
7. Tekniske specifikationer
| Feature | Værdi |
|---|---|
| Model | STIHL FS 38 |
| Motortype | Gasoline-powered 2-stroke engine |
| Forskydning | 27.2 cm³ |
| Strømudgang | 0.65 kW / 0.9 hk |
| Weight (without fuel, cutting tool, and guard) | 4.2 kg |
| Sound Pressure Level (with plastic tools) | 94 dB(A) |
| Sound Pressure Level (with metal tools) | 96 dB(A) |
| Sound Power Level (with plastic tools) | 108 dB(A) |
| Sound Power Level (with metal tools) | 109 dB(A) |
| Maksimal motorhastighed | 5000 RPM |
| Montering påkrævet | Ja |
| Farve | Sort |
| GTIN / UPC | 886661909322 |
8. Garanti og support
For detailed information regarding the product warranty, please refer to the separate warranty document provided with your purchase or visit the official STIHL webwebsted.
For technical support, spare parts, or service, please contact your authorized STIHL dealer. A list of authorized dealers can typically be found on the official STIHL webwebsted.