How do you turn on a concrete saw?

To turn on a concrete saw, the process typically involves a sequence of steps designed to safely and effectively start the engine. A critical step involves managing the choke position after the initial engine activity.

How to Turn on a Concrete Saw

Starting a concrete saw, such as a STIHL model, requires careful adherence to a specific procedure, especially concerning the choke settings, to ensure proper ignition and prevent engine flooding.

Key Steps to Starting a Concrete Saw:

Before attempting to start, always ensure the saw has adequate fuel and that all safety mechanisms are engaged or in the correct position. Wear appropriate personal protective equipment (PPE).

Here's a general sequence, incorporating specific insights for managing the choke during the starting process:

1. Preparation & Safety Check:

   • Fuel & Oil: Verify adequate fuel levels. For 2-stroke saws, ensure the correct fuel-to-oil mixture.
   • Blade Guard & Stability: Check that the blade guard is properly in place and the saw is on a stable, level surface.
   • Brake (if applicable): Ensure the blade brake is engaged for safety during starting.
   • Decompression Valve: If your saw has a decompression valve, press it to make pulling the cord easier.
   • Primer Bulb: If present, press the primer bulb several times until fuel is visible.

2. Choke Setting for Cold Start:

   • Locate the choke lever. For a cold engine, move the choke lever to the full choke position (often indicated by a symbol or a specific number, e.g., '1' or a closed butterfly valve).

3. Initial Pulls:

   • Place your foot on the rear handle or secure the saw firmly to prevent it from moving.
   • Grip the starter handle firmly and pull the starter cord with a strong, deliberate motion until you hear the engine "burp" or "catch." This indicates the engine is getting fuel and is ready for the next stage.
   • Important Note (from reference): The aim is to pull the cord "Running or until you hear the same noise as after the. First. Time as you can see start catching." This distinctive sound or "catching" is your signal to proceed.

4. Choke Adjustment After Catching:

   • Move Choke to Third Position: As soon as you hear the engine "catch" or make that characteristic starting noise, immediately "move a choke to the third. Position." This "third position" typically refers to an intermediate or run position (often half-choke or no-choke), allowing the engine to start fully without being flooded.

5. Final Pulls to Full Start:

   • Pull the starter cord again with firm pulls. The engine should now start and run.
   • If the engine struggles, ensure the choke is correctly set for the running phase.

6. Warm-up and Operation:

   • Once the engine starts, allow it to warm up for a minute or two before engaging the blade or applying power. This helps lubricate internal components and ensures smooth operation.
   • Always follow the manufacturer's specific instructions for your concrete saw model, as procedures may vary slightly.

Summary Table of Choke Management:

By understanding and following these steps, particularly the precise timing for choke adjustment based on the engine's sound, you can effectively turn on a concrete saw.