Introduction
This manual provides essential instructions for the safe and efficient operation, maintenance, and troubleshooting of your Jemi Cordless 6-inch Portable Electric Chainsaw (Model: KP-DJ212G). Please read this manual thoroughly before first use and keep it for future reference.
Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury when using power tools.
- Wear appropriate personal protective equipment (PPE) including safety goggles, gloves, and hearing protection.
- Ensure the safety lock is engaged when the chainsaw is not in use or during maintenance.
- Keep hands and body parts away from the chain when the tool is powered on.
- Do not operate the chainsaw in wet conditions or near flammable liquids/gases.
- Keep the work area clean and well-lit.
- Store the chainsaw and batteries in a dry, secure place, out of reach of children.
- Use only original Jemi batteries and chargers.
Package Contents
Verify that all items are present upon unpacking:
- 1 x Mini Chainsaw
- 1 or 2 x Chains (depending on variant)
- 1 or 2 x Batteries (21V 1.5Ah Lithium-ion, depending on variant)
- 1 x Charger
- 1 x Pair of Gloves
- 1 x Safety Goggles
- 1 x Screwdriver
Setup
1. Battery Charging
- Connect the charger to a power outlet.
- Insert the 21V 1.5Ah Lithium-ion battery into the charger.
- Allow the battery to charge fully before first use. The display screen on the battery shows the remaining power.
2. Chain Installation
- Ensure the chainsaw is turned off and the battery is removed.
- Refer to the diagram for proper chain direction and tension.
- Use the provided screwdriver to adjust the chain tension. The chain should be snug but still able to move freely around the guide bar.

Image: Labeled diagram of the Jemi chainsaw, highlighting components like the oil inlet, security lock, comfortable handle, cover knob, electric control switch, rechargeable lithium battery, and anti-splash baffle. It also illustrates the proper installation of saw blades.
3. Lubrication System Setup
- Locate the oil inlet on the chainsaw body.
- Carefully add chainsaw oil to the reservoir. Do not overfill.
- Press the designated button to automatically oil the chain before and during use to maximize the chainsaw's lifespan.

Image: Diagram illustrating the chainsaw's automatic lubrication system, showing the oil reservoir, flow path, and instructions for adding oil and activating the automatic oiling function.
Operating Instructions
1. Starting and Stopping
- Insert a charged battery into the chainsaw.
- To start, disengage the safety lock and then press the electric control switch.
- To stop, release the electric control switch. Always engage the safety lock when not actively cutting.

Image: Diagram showing the chainsaw's unique design features, including the knob mounting cover plate, 120-degree adjustable angle, ventilation for cooling, and the safety lock mechanism on the handle.
2. Cutting Techniques
- Hold the chainsaw firmly with one hand, ensuring a secure grip on the non-slip handle.
- Position the chainsaw chain against the material to be cut.
- Apply steady, even pressure. The deep quenched steel chain and 28 ft/s speed are designed for efficient cutting of tough materials.
- The chainsaw is suitable for various tasks including cutting wood, steel pipes, and other pipes.

Image: Close-up view of the chainsaw cutting through a log, emphasizing the "Deep Quenched Steel Chain" with a speed of "28 ft/s" and the "Fast cooling design" of the motor housing.

Image: Three panels demonstrating the chainsaw's versatility, showing it cutting wood, a steel pipe, and a plastic pipe, labeled "MULTIPLE USE SCENARIOS".
Maintenance
1. Chain Care
- Regularly check chain tension and adjust as needed using the screwdriver.
- Ensure the automatic lubrication system is functioning and the oil reservoir is filled.
- Inspect the chain for sharpness and damage. Replace dull or damaged chains promptly.
2. Cleaning
- After each use, remove the battery and clean the chainsaw body, guide bar, and chain.
- Pay attention to the cooling vents to ensure they are free from debris, as the chainsaw features an efficient heat dissipation and fast cooling design.
- Use a dry cloth or soft brush. Do not use water or harsh chemicals.
3. Battery Storage
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- For long-term storage, charge batteries to approximately 50% capacity.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chainsaw does not start | Battery not charged; Safety lock engaged; Battery not properly inserted. | Charge battery; Disengage safety lock; Reinsert battery securely. |
| Chain not cutting efficiently | Dull chain; Incorrect chain tension; Insufficient lubrication. | Replace or sharpen chain; Adjust chain tension; Refill oil reservoir and activate auto-lubrication. |
| Chainsaw overheats | Blocked cooling vents; Prolonged heavy use. | Clean cooling vents; Allow chainsaw to cool down between uses. |
Specifications
| Feature | Detail |
|---|---|
| Brand Name | Jemi |
| Model Number | KP-DJ212G |
| Power Source | Battery (21V 1.5Ah Lithium-ion) |
| Motor Type | Brushed, Pure Copper Motor (550W) |
| Chain Material | Manganese Steel (Deep Quenched) |
| Chain Speed | 28 ft/s |
| Product Length | 36 cm (14.17 in) |
| Product Height | 11 cm (4.33 in) |
| Product Weight | Approx. 1.36 kg (3 lbs) |
| Package Dimensions (L x W x H) | 41 cm x 18 cm x 13 cm |
| Package Weight | 2.6 kg |
| Origin | Mainland China |

Image: A comparison graphic highlighting the advantages of the Jemi chainsaw's 550W Pure Copper Motor over an ordinary 350W motor, detailing benefits such as long-lasting life, overheating prevention, stronger power output, and high reliability.
User Tips
- The chainsaw is designed for one-handed operation, making it easy for various users.
- The splash-proof guard is effective in blocking wood chips, enhancing safety during use.
- The quick installation feature allows for assembly in about one minute, which is convenient for users.
Warranty and Support
For any questions regarding the product, including battery, accessories, or operational issues, please contact Jemi customer support. Refer to your purchase documentation for specific warranty terms and contact information.






