1. Fampidirana
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.
Inona no tafiditra:
- 1 x SEYVUM 20V 12-inch Chainsaw
- 2 x 12-inch Chains
- 2 x 20V 4.0Ah Li-ion Batteries
- 1 x 1.8A Dual Charger
- 1 x fonon-tanana
- 1 x Pair of Protective Glasses
- 1 x User Manual

Image 1.1: The SEYVUM 20V 12-inch Cordless Electric Chainsaw and its complete accessory kit.
2. Torolàlana momba ny fiarovana
Ataovy laharam-pahamehana foana ny fiarovana rehefa mampiasa fitaovana elektrika. Ny tsy fanarahana ireto toromarika ireto dia mety hiteraka ratra mafy na fahasimbana ara-pananana.
Torolàlana momba ny fiarovana ankapobe:
- Wear appropriate personal protective equipment (PPE) including safety glasses, gloves, hearing protection, and sturdy footwear.
- Ataovy azo antoka fa tsy misy olona eo akaikiny, ankizy ary biby fiompy ao amin'ny toeram-piasana.
- Aza ampiasaina amin'ny toerana lena na eo anatrehan'ny rano na entona mora mirehitra ny tsofa vy.
- Keep a firm grip on the chainsaw with both hands during operation.
- Never overreach or cut above shoulder height.
- Esory foana ny bateria rehefa tsy ampiasaina, alohan'ny hanadiovana na hanaovana fikojakojana.
Fitaovana fiarovana mitambatra:
- Safidy fiarovana: The chainsaw can only be activated by simultaneously pressing the safety button and the trigger switch.
- Brake rojo: 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. FIVORIAMBE
Before assembly, ensure the battery is removed from the chainsaw.
3.1 Attaching the Chain and Guide Bar:
- Prepare the Chain: 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.
- Ahitsio ny fihenjanana: 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).
- Fonosana azo antoka: 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. Fametrahana sy famandrihana bateria
The chainsaw is powered by two 20V 4.0Ah Li-ion batteries, providing extended run time.
4.1 Battery Status:
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.
- Mba hanesorana, tsindrio ny bokotra famotsorana ny bateria ary atsofohy mivoaka ny bateria.

Image 4.1: The two 20V 4.0Ah Li-ion batteries provide power for the chainsaw.
5. Fampandehanana
Always ensure you are wearing appropriate PPE and the work area is clear before operating the chainsaw.
5.1 Starting and Stopping:
- Manomboka: With the battery installed, press the safety button and the trigger switch simultaneously. The chain will begin to move.
- Mijanona: 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.
- Fenoy ny fitoeran-tsolika: Unscrew the oil tank cap and pour appropriate chainsaw bar and chain oil into the oil filler neck.
- Jereo ny haavon'ny solika: Monitor the oil level through the oil level window on the side of the chainsaw.
- Fihazakazahana voalohany: 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 Teknika fanapahana:
- Always maintain a balanced stance and firm grip.
- Allow the chainsaw to reach full speed before contacting the wood.
- Do not force the saw; let the chain do the work.
- Be aware of potential kickback and pinch points.
Lahatsary 5.2: Ity lahatsary ity dia manome fanazavana feno momba nyview 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. Fikojakojana
Ny fikojakojana tsy tapaka dia miantoka ny fahombiazana tsara indrindra ary manalava ny androm-piainan'ny tsofa vy anao.
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 Fanadiovana:
- Esory ny bateria alohan'ny hanadiovana.
- Use a brush or compressed air to remove sawdust and debris from the chain, guide bar, and motor housing.
- Fafao ny ivelany amin'ny dokaamp lamba. Aza mampiasa akora simika mahery vaika.
6.4 Fanamafisana rojo vy:
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. Famahana olana
This section addresses common issues you might encounter with your SEYVUM chainsaw.
| OLANA | Antony mety hitranga | vahaolana |
|---|---|---|
| Chainsaw tsy manomboka | 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 | Fihenjanana rojo tsy mety. | Adjust chain tension using the tool-free knob as described in Section 3.2. |
| Chain not oiling | Foana ny tahirin-tsolika; Tsentsina ny seranan-tsolika. | Refill oil reservoir. Clean oil port if necessary. Run idle for 10 seconds to prime. |
| Nihena ny fahombiazan'ny fanapahana | Dull chain; Incorrect chain tension; Low battery charge. | Sharpen or replace chain. Adjust chain tension. Recharge or replace battery. |
8. Famaritana
| endri-javatra | antsipirihany |
|---|---|
| Marika | SEYVUM |
| Laharana modely | 70-US-DLCS4011-2 |
| Loharanon-kery | Battery Powered |
| Karazana maotera | Motor tsy misy borosy |
| Horsepower | 1200 Watts |
| Hafainganam-bato | 29 ft/s |
| Hafainganam-pandeha tsy misy entana | 5800 RPM |
| Bar Length | 12 santimetatra |
| Karazana bateria | 20V 4.0Ah Li-ion (2 included) |
| Approx. Run Time | Up to 45 minutes (or 100 cuts of 4x4 inch wood) |
| Time Charging | Approx. 2 ora |
| Lanja entana | 8.18 kg |
| Ny refin'ny vokatra | 17.44 x 7.32 x 7.2 santimetatra |
9. Warranty sy fanohanana
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 website. Tehirizo ny tapakila fividiananao ho porofon'ny fividianana ho an'ny fitakiana fiantohana.




