OUKANING 58cc 20-inch Gas Chainsaw Instruction Manual

1. Introduction

This manual provides essential information for the safe and effective operation, assembly, and maintenance of your OUKANING 58cc 20-inch Gas Chainsaw. Please read this manual thoroughly before using the chainsaw to ensure proper handling and to prevent injury or damage.

Figure 1: OUKANING 58cc 20-inch Gas Chainsaw

2. Safety Instructions

WARNING: Always prioritize safety. Failure to follow these instructions may result in serious injury or death.

• Read the Manual: Carefully read and understand the entire user manual before operation.
• Fuel Handling: Always mix gasoline and two-stroke engine oil thoroughly in the specified ratio (1 part engine oil to 25 parts gasoline) in a fuel mixing bottle. Handle fuel in a well-ventilated area away from ignition sources.
• Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, hearing protection, gloves, sturdy footwear, and protective clothing.
• Hand Placement: Never place hands on the guide plate chain when the machine is running or connected to a power source.
• Starting Safety: The chainsaw features a flame-out switch and a throttle lock button. The machine can only be started by pressing both switches simultaneously to prevent accidental activation.
• Emergency Braking: The brake baffle design allows for emergency braking and helps prevent sawdust splashing. Understand how to use it.
• Work Area: Ensure a clear work area, free from bystanders, pets, and obstacles.
• Stability: Maintain a firm grip on the chainsaw and a balanced stance during operation.
• Heat Dissipation: The air-cooling system and dense cooling holes are designed for quick heat dissipation. Do not obstruct these vents.

Figure 2: Key Safety Features

3. Package Contents

Verify that all items listed below are included in your package:

• 1x Gasoline Chainsaw Unit
• 1x Chain
• 1x Guide Bar (20-inch)
• 1x Guide Bar Cover
• 1x Fuel Mixing Bottle
• 1x Oil Hopper
• 1x Tool Bag
• 1 Pair of Gloves
• 1x English Manual
• Other Assembly Accessories

4. Product Specifications

The following table outlines the technical specifications of your OUKANING chainsaw:

Figure 3: Product Dimensions and Applications

Figure 4: Chainsaw Component Diagram

5. Assembly Instructions

Follow these steps to assemble your chainsaw:

1. Prepare the Unit: Ensure the chainsaw unit is on a stable, flat surface.
2. Install the Guide Plate: Carefully slide the guide plate onto the mounting studs.
3. Install the Chain: Place the chain around the sprocket and guide bar, ensuring the cutting teeth are facing the correct direction.
4. Align Side Cover: Align the holes of the side cover with the mounting studs and carefully place it over the guide bar and chain assembly. Screw on the nuts loosely.
5. Adjust Chain Tightness: Use the chain tensioning screw to adjust the chain tightness. The chain should be snug but still able to be pulled freely by hand around the guide bar.
6. Secure Lock Nuts: Once the chain tension is correct, tighten the lock nuts securely to hold the side cover and guide bar in place.

Figure 5: 20-inch Manganese Steel Chain

Assembly Video Guide

For a visual guide on assembling your chainsaw, please watch the video below:

6. Operation

6.1 Fuel Mixing

Your chainsaw uses a 2-stroke engine and requires a specific fuel mixture. Use a clean fuel mixing bottle for this process.

• Mix 1 part two-stroke engine oil with 25 parts gasoline.
• Shake the mixture thoroughly before pouring it into the fuel tank.
• Always use fresh, high-quality gasoline and two-stroke engine oil.

6.2 Starting the Chainsaw

Follow these steps to start the chainsaw:

1. Ensure the fuel tank is filled with the correct fuel mixture and the oil tank is filled with chain lubricant.
2. Place the chainsaw on a stable, flat surface.
3. Engage the chain brake.
4. Press the throttle lock button and the flame-out switch simultaneously to prepare for starting.
5. Pull the manual start handle firmly and steadily until the engine starts. Do not pull the rope to its full extension.
6. Once the engine starts, allow it to warm up for a few moments before disengaging the chain brake and beginning operation.

Figure 6: Key Operational Components

6.3 Cutting Techniques

Always refer to professional guidelines for safe cutting techniques. Maintain a firm grip, keep both hands on the handles, and ensure proper footing. Be aware of kickback risks and plan your cuts carefully.

Figure 7: Chainsaw Performance Overview

7. Maintenance

Regular maintenance ensures the longevity and safe operation of your chainsaw.

• Chain Sharpening: Keep the chain sharp for efficient and safe cutting. Refer to specific chain sharpening instructions or consult a professional.
• Chain Lubrication: The automatic lubrication system lubricates the guide bar and chain during operation. Regularly check the lubricating oil level and refill as needed.
• Air Filter: The air filter prevents impurities and dust from entering the engine. Clean or replace the air filter regularly to maintain engine performance and extend service life.
• Cleaning: After each use, clean sawdust and debris from the chainsaw, especially around the engine cooling fins, air filter, and chain brake mechanism.
• Storage: Store the chainsaw in a dry, secure location, out of reach of children. Empty the fuel tank if storing for extended periods.

Figure 8: Heat Dissipation System

8. Troubleshooting

This section addresses common issues you might encounter with your chainsaw.

• Engine Not Starting:
  • Check fuel level and ensure correct fuel mixture.
  • Verify spark plug is clean and properly connected.
  • Ensure the choke is set correctly for starting.
  • Confirm the flame-out switch and throttle lock button are engaged correctly.
• Chainsaw Lacks Power:
  • Check if the air filter is clogged and clean it.
  • Ensure the chain is sharp and properly tensioned.
  • Verify the fuel mixture is correct.
• Chain Not Moving:
  • Check if the chain brake is engaged.
  • Inspect for any obstructions around the chain or guide bar.
  • Ensure the chain is properly installed and tensioned.
• Excessive Vibration:
  • Check for loose components or damaged chain/guide bar.
  • Ensure the chain is correctly tensioned.

If you encounter issues not covered here or if troubleshooting steps do not resolve the problem, please contact customer support.