1. Inleiding
Thank you for choosing the SEYVUM 20V 12-inch Cordless Electric Chainsaw. This manual provides essential information for the safe and efficient operation, assembly, maintenance, and troubleshooting of your chainsaw. Please read it thoroughly before first use and keep it for future reference.
Wat is inbegrepen:
- 1 x SEYVUM 20V 12-inch Chainsaw
- 2 x 12-inch Chains
- 2 x 20V 4.0Ah Li-ion accu's
- 1 x 1.8A dubbele oplader
- 1 x paar handschoenen
- 1 x Pair of Protective Glasses
- 1 x Gebruikershandleiding

Image 1.1: The SEYVUM 20V 12-inch Cordless Electric Chainsaw and its complete accessory kit.
2. Veiligheidsinstructies
Geef altijd prioriteit aan veiligheid bij het gebruik van elektrisch gereedschap. Het niet opvolgen van deze instructies kan leiden tot ernstig letsel of materiële schade.
Algemene veiligheidsrichtlijnen:
- Wear appropriate personal protective equipment (PPE) including safety glasses, gloves, hearing protection, and sturdy footwear.
- Zorg ervoor dat er zich geen omstanders, kinderen of huisdieren in het werkgebied bevinden.
- Gebruik de kettingzaag niet onder natte omstandigheden of in de buurt van ontvlambare vloeistoffen of gassen.
- Houd de kettingzaag tijdens het gebruik stevig met beide handen vast.
- Never overreach or cut above shoulder height.
- Verwijder altijd de batterij wanneer het apparaat niet in gebruik is, voordat u het schoonmaakt of onderhoud uitvoert.
Geïntegreerde veiligheidsfuncties:
- Veiligheid schakelaar: The chainsaw can only be activated by simultaneously pressing the safety button and the trigger switch.
- Kettingrem: An instant-stop chain brake system quickly halts the chain within 0.2 seconds in case of kickback, minimizing injury risk.
- Kickback Reduction: The chainsaw head is designed to reduce the likelihood of kickback.

Image 2.1: Key safety features including the safety switch, chain brake, and ergonomic handle for secure operation.
3. Montage
Before assembly, ensure the battery is removed from the chainsaw.
3.1 Attaching the Chain and Guide Bar:
- Bereid de ketting voor: Carefully uncoil the chain and place it on a flat surface. Note the direction of the cutting teeth; they should face forward, away from the chainsaw body.
- Remove Cover Plate: Turn the green knob counter-clockwise to loosen and remove the cover plate from the chainsaw body.
- Install Chain on Guide Bar: Place the chain onto the guide bar, ensuring the cutting teeth are oriented correctly.
- Mount Guide Bar and Chain: Position the guide bar with the chain onto the chainsaw body. Ensure the mounting plate faces upwards and the chain engages with the drive sprocket.
- Reattach Cover Plate: Place the cover plate back onto the chainsaw body. Do not fully tighten the green knob yet.
3.2 Adjusting Chain Tension (Tool-Free):
The SEYVUM chainsaw features a tool-free chain tensioning system for easy adjustments.
- Loosen Cover Plate: If the chain is too tight, first turn the green knob counter-clockwise to loosen the cover plate slightly.
- Spanning aanpassen: Rotate the black ring clockwise to tighten the chain or counter-clockwise to loosen it. The chain should be snug against the guide bar, but still allow you to pull it slightly away from the bar (approximately 2-3mm).
- Veilige afdekplaat: Once the desired tension is achieved, turn the green knob clockwise to firmly tighten the cover plate.

Image 3.1: The tool-free chain tensioning knob allows for quick and easy adjustments.
Video 3.1: This video demonstrates how to properly install the chain and guide bar, and adjust the chain tension on the SEYVUM 20V 12-inch chainsaw. It shows placing the chain on the guide bar, noting the cutting teeth direction, removing and reattaching the cover plate, and using the tool-free knob to achieve correct chain tightness.
4. Batterij installeren en opladen
The chainsaw is powered by two 20V 4.0Ah Li-ion batteries, providing extended run time.
4.1 Batterijstatus:
Each battery features an electric quantity display. Press the button on the battery to check the charge level. Green LEDs indicate charge, while a red LED indicates low battery.
4.2 Charging the Batteries:
- Connect the 1.8A dual charger to a power outlet.
- Insert the batteries into the charger slots. A red LED indicator on the charger signifies charging.
- When fully charged, the LED indicator will turn green. Charging time is approximately 2 hours for both batteries.
4.3 Installing/Removing Batteries:
- To install, slide the charged battery into the battery slot on the chainsaw until it clicks into place.
- Om de batterij te verwijderen, drukt u op de batterijknop en schuift u de batterij eruit.

Image 4.1: The two 20V 4.0Ah Li-ion batteries provide power for the chainsaw.
5. Bediening
Always ensure you are wearing appropriate PPE and the work area is clear before operating the chainsaw.
5.1 Starten en stoppen:
- Beginnen: With the battery installed, press the safety button and the trigger switch simultaneously. The chain will begin to move.
- Stoppen: Release the trigger switch. For emergency stops, engage the chain brake by pushing the front handguard forward.
5.2 Auto-Oiling System:
The chainsaw features an automatic oiling system to ensure continuous lubrication of the chain and guide bar, extending their lifespan and optimizing performance.
- Olietank vullen: Unscrew the oil tank cap and pour appropriate chainsaw bar and chain oil into the oil filler neck.
- Controleer het oliepeil: Monitor the oil level through the oil level window on the side of the chainsaw.
- Eerste run: Before first use or after refilling, run the chainsaw idle for approximately 10 seconds to ensure oil flow is normal.

Image 5.1: The auto-oiling system ensures the chain is continuously lubricated during operation.
5.3 Snijtechnieken:
- Behoud altijd een evenwichtige houding en een stevige grip.
- Allow the chainsaw to reach full speed before contacting the wood.
- Forceer de zaag niet; laat de ketting het werk doen.
- Be aware of potential kickback and pinch points.
Video 5.2: Deze video biedt een uitgebreid overzichtview of the SEYVUM 20V 12-inch cordless chainsaw, demonstrating its features such as the tool-less chain tension, auto-oiling system, dual safety design, and the powerful brushless motor in action. It also shows the battery installation and removal, and the instant-stop chain brake.
6. Onderhoud
Regelmatig onderhoud zorgt voor optimale prestaties en verlengt de levensduur van uw kettingzaag.
6.1 Chain Tension:
Check chain tension frequently, especially during extended use. A properly tensioned chain should be snug but still allow for slight movement away from the guide bar. Refer to Section 3.2 for adjustment instructions.
6.2 Oiling:
Always ensure the oil reservoir is filled with appropriate bar and chain oil before and during operation. Check the oil level regularly using the oil level window.
6.3 Reiniging:
- Verwijder de batterij voordat u het apparaat schoonmaakt.
- Gebruik een borstel of perslucht om zaagsel en ander vuil van de ketting, geleiderail en motorbehuizing te verwijderen.
- Veeg de buitenkant af met adamp lap. Gebruik geen agressieve chemicaliën.
6.4 Kettingslijpen:
A sharp chain is crucial for efficient and safe cutting. If the chain becomes dull, it should be sharpened or replaced. Consult a professional or refer to specific chain sharpening guides for your chain type.
7. Probleemoplossing
This section addresses common issues you might encounter with your SEYVUM chainsaw.
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Kettingzaag start niet | Battery not installed correctly or discharged; Safety button not pressed; Chain brake engaged. | Ensure battery is fully charged and properly seated. Press safety button and trigger simultaneously. Disengage chain brake. |
| Chain is loose or too tight | Onjuiste kettingspanning. | Adjust chain tension using the tool-free knob as described in Section 3.2. |
| Ketting niet gesmeerd | Oliereservoir leeg; oliepoort verstopt. | Refill oil reservoir. Clean oil port if necessary. Run idle for 10 seconds to prime. |
| Verminderde snijprestaties | Dull chain; Incorrect chain tension; Low battery charge. | Sharpen or replace chain. Adjust chain tension. Recharge or replace battery. |
8. Specificaties
| Functie | Detail |
|---|---|
| Merk | SEYVUM |
| Modelnummer | 70-US-DLCS4011-2 |
| Energiebron | Op batterijen |
| Motortype | Borstelloze motor |
| Paardenkracht | 1200 Watt |
| Kettingsnelheid | 29 voet/s |
| Snelheid zonder belasting | 5800 toeren per minuut |
| Lengte van de staaf | 12 inch |
| Batterijtype | 20V 4.0Ah Li-ion (2 included) |
| Ongeveer. Looptijd | Up to 45 minutes (or 100 cuts of 4x4 inch wood) |
| Oplaadtijd | Ongeveer 2 uur |
| Artikelgewicht | 8.18 pond |
| Productafmetingen | 17.44 x 7.32 x 7.2 inch |
9. Garantie en ondersteuning
For warranty information, product support, or to purchase replacement parts, please refer to the contact information provided in your product packaging or visit the official SEYVUM webwebsite. Bewaar uw aankoopbewijs als aankoopbewijs voor garantieclaims.




