Hydrostat lever on AC720/PowerMax

[MDD 0]

Is there anyone out there that could get me a close up picture of the hydrostatic lever system on the AC720/PowerMax? I think mine has been altered in some way. The main level works fine, but the attached "locking" lever does nothing. Also, a picture that shows the neutral safety switch would be great. I have the service manual, but their exploded drawing does not seem to click. My email is mdaft@xta.com. Thank You

[KraigTM 0]

There is a steel ball that was missing on my AC620 when I bought it. It took me a while to figure out what was causing it to go "full ahead". I had to keep my hand on the lever at all times. It turns out I had two problems. The spring inside the console that provides tension on the handle was broken and the steel ball was missing. I was able to fabricate a new spring from a spring I bought at Fleet Farm (the spring is a NLA part), the balls were still available, at least they were 2 years ago. The ball rides in a tapered groove providing aditional resistance to the movement of the lever. The locking lever releases the ball when you pull back on it. I don't have a good photo of it handy. I hope my description helps make some sense of the exploded drawing in the service manual. Best wishes.