Skip to main content
Stesso

Clog Management and Design Philosophy

12:20
16:45
136.1K views

At 12:20 in

Echo Bearcat Woodchipper vs 3 guys and a Toro Dingo

Watch on YouTube

What happens here

For safety when shutting down, always leave the belt engaged. This allows the rotor to slow down at the same rate as the engine, preventing a free-wheeling rotor which could be dangerous. In case the machine clogs, a 'knee bar' safety feature is present: pushing it immediately stops the feed rollers. To clear a clog, open the chipper housing. The chipper's operating system also incorporates a proximity sensor on the rotor. This sensor reads the rotor's RPM and ensures that the feed rollers will only engage once the rotor has reached a minimum safe operating speed (e.g., 1600 RPM).

Goal: Understand safety features for shutting down and managing clogs, and learn about the chipper's design choices.

Tools and materials

  • Bear Cat CH922DH Chipper Bear Cat — Demonstrating safety features and design
  • Knee bar — Immediately stopping the feed rollers in an emergency
  • Operating system Bear Cat — Receiving input from the proximity sensor
  • Proximity sensor — Reading rotor RPM and controlling feed roller engagement

What they say

Hide

Uh, another [music] thing when you're shutting down the machine, just always leave the belt engaged. That way, the rotor is slowing down at the same RPMs as the engine. It's, uh, again, safety. Uh, then you don't have a free spooling rotor that could potentially clog a machine. And so when the machine does clog, if it does clog, that's where you you open it up right here. Yep. Right. You would open the the chipper housing um and physically dig the chips out. Proximity sensor is what's picking up the RPMs of the rotor. This sensor back here, maybe kind of hard to see. You can see the face on this sensor. and then it corresponds with this square headed set screw. Now, when that set screw passes the face of this sensor that's reading an RPM off this rotor, okay? So, the operating system on this chipper needs to see um let's say 1,600 RPMs before it'll it will allow the feed roller to go forward. Um if it's not at the required RPMs, it'll stop the feed roller. Uh, when I see stop, it'll stop till it senses that the RPM is picked back up. So, it sounds like you've done a lot of the homework trying to improve this thing. What are some of the disadvantages of a design like this? I think we're one of the few companies that still go with the this style of brewer. Okay. A lot of other places um or other companies, I believe they do like a drum style. Yeah. But, um, we we've done some looking into the drum styles. I like to say that that's one thing we don't offer is a drum chip. So, you can call it a disadvantage. I'm going to call it what it is. It's something that's worked for years. It's already proven itself. So, let's put this back together and see how it handles some brush. All right, you got it.

Auto-generated from the video audio.