1. Safety Information
Always read and understand all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.
1.1 General Safety Warnings
- Work Area Safety: Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
- Personal Safety: Always wear appropriate personal protective equipment (PPE) including safety glasses, hearing protection, gloves, and sturdy footwear. Do not operate the tool when tired or under the influence of drugs, alcohol, or medication.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. It will do the job better and safer at the rate for which it was designed.
- Fuel Safety: Handle fuel with extreme care. It is highly flammable. Mix and store fuel in a well-ventilated area, away from sparks or open flames.
2. Product Overview
The BOUDECH Moster-620 is a versatile 5-in-1 multi-tool powered by a 62CC gasoline engine, designed for various outdoor tasks. It includes interchangeable attachments for chainsaw, hedge trimmer, brush cutter, and string trimmer functions.
2.1 Components
- Engine Unit (62CC)
- Main Shaft with Control Handle
- Chainsaw Attachment
- Hedge Trimmer Attachment
- Brush Cutter Attachment (with metal blade)
- String Trimmer Attachment (with nylon line head)
- Shoulder Harness
- Tool Kit and Fuel Mixing Bottle

Figure 2.1: Overview of the BOUDECH Moster-620 multi-tool and its various attachments.

Figure 2.2: Detailed view of the powerful 62CC engine unit.

Figure 2.3: Ergonomic control handle with integrated throttle and safety features.

Figure 2.4: Essential accessories provided for operation and maintenance.
3. Setup and Assembly
3.1 Fuel Mixing
This tool uses a 2-stroke gasoline engine. It requires a mixture of unleaded gasoline and 2-stroke engine oil. Refer to the engine unit for the exact mixing ratio (typically 25:1 or 50:1, depending on oil type). Use the provided mixing bottle for accurate measurement.
- Fill the mixing bottle with the required amount of unleaded gasoline.
- Add the correct amount of 2-stroke engine oil.
- Securely close the bottle and shake well to ensure thorough mixing.
- Pour the mixed fuel into the tool's fuel tank.
3.2 Attaching Components
The modular design allows for easy attachment changes. Ensure the engine is off and cool before changing attachments.
- Align the male end of the attachment shaft with the female receiver on the main shaft.
- Push the shafts together until the locking pin engages.
- Tighten the securing knob or bolt to ensure a firm connection.

Figure 3.1: The multi-tool with various attachments ready for assembly.
3.2.1 Chainsaw Attachment

Figure 3.2: The chainsaw attachment, ideal for pruning and cutting branches.
3.2.2 Hedge Trimmer Attachment

Figure 3.3: The hedge trimmer attachment, suitable for shaping hedges and shrubs.
3.2.3 String Trimmer Attachment

Figure 3.4: The string trimmer attachment, perfect for trimming grass and light weeds.
3.2.4 Brush Cutter Attachment

Figure 3.5: The brush cutter attachment with a metal blade, designed for tougher vegetation.
4. Operating Instructions
4.1 Starting the Engine (Easy Starting System)
- Place the tool on a flat, stable surface.
- Ensure the ON/OFF switch is in the 'ON' position.
- Press the primer bulb several times until fuel is visible in the return line.
- Set the choke lever to the 'CLOSED' (cold start) position.
- Pull the starter cord firmly and smoothly until the engine fires (usually 1-3 pulls).
- Once the engine fires, move the choke lever to the 'OPEN' position.
- Pull the starter cord again until the engine starts and runs smoothly.
- Allow the engine to warm up for a few moments before engaging the throttle.
4.2 Using the Attachments
Always wear appropriate PPE and maintain a firm grip on the tool during operation.
4.2.1 Chainsaw Operation
- Ensure the chain is properly tensioned and lubricated.
- Hold the tool firmly with both hands.
- Engage the throttle and allow the chain to reach full speed before making contact with the wood.
- Cut with a smooth, controlled motion. Avoid cutting directly overhead.
4.2.2 Hedge Trimmer Operation
- Inspect the blades for sharpness and cleanliness.
- Hold the tool at a comfortable angle, ensuring balance.
- Use a sweeping motion to trim hedges, working from bottom to top for vertical cuts and across for horizontal cuts.
- Avoid cutting branches thicker than the recommended maximum diameter.
4.2.3 Brush Cutter / String Trimmer Operation
- For brush cutter, ensure the metal blade is securely attached and sharp. For string trimmer, ensure sufficient nylon line is extended.
- Wear leg protection to guard against debris.
- Use a side-to-side sweeping motion to cut grass or brush.
- Maintain a safe distance from objects and other people.
5. Maintenance
Regular maintenance ensures optimal performance and extends the life of your tool. Always disconnect the spark plug wire before performing any maintenance.
5.1 After Each Use
- Clean the exterior of the tool with a damp cloth.
- Remove any grass, dirt, or debris from the cutting attachments.
- Check and clean the air filter.
- For chainsaw, check chain tension and oil level.
5.2 Monthly / Every 25 Hours of Use
- Inspect and clean or replace the spark plug.
- Check fuel filter and replace if necessary.
- Lubricate the gearbox of the hedge trimmer and brush cutter attachments.
- Sharpen chainsaw chain and hedge trimmer blades as needed.
5.3 Storage
When storing the tool for extended periods:
- Drain all fuel from the tank and carburetor. Run the engine until it stops from lack of fuel.
- Clean the entire tool thoroughly.
- Apply a light coat of oil to metal parts to prevent rust.
- Store in a dry, well-ventilated area, out of reach of children.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | No fuel or incorrect fuel mix Spark plug fouled or faulty Choke setting incorrect Flooded engine | Check fuel level and mix ratio Clean or replace spark plug Adjust choke lever Remove spark plug, pull cord several times, then reinsert plug |
| Loss of power during operation | Dirty air filter Incorrect fuel mix Dull cutting attachment | Clean or replace air filter Verify fuel mix ratio Sharpen or replace cutting attachment |
| Excessive vibration | Loose attachment Damaged or unbalanced blade/chain Bent shaft | Tighten all connections Inspect and replace damaged parts Contact service center |
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | Moster-620 |
| Engine Type | 62CC 2-stroke, Gas Powered |
| Product Dimensions | 135L x 29W x 29H cm |
| Item Weight | 7 Kilograms |
| Color | Orange |
| Material | Not relevant for this product (as per source) |
| Power Source | Gas |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or contact your retailer. Keep your proof of purchase for any warranty claims.