I've had this zd331 for a little over a year now, bought used with 650 hours on it and love it. Ran it all summer through thick grass and had no issues. Recently, when under load (PTO on) it will suddenly run rough and smoke a bit. It does not happen immediately, sometimes after 5 minutes or so. Like it is not firing on a cylinder if I had to guess.
If I turn off the PTO it runs normal, then may or may not do it again when the PTO is back on. It happened a few times the other day then eventually ran fine with zero issues.
The fuel tanks are always topped off at the end of the day with good diesel, does this sound like a fuel issue or mechanical issue? Any ideas where to start first?
Thanks!
Steve
If I turn off the PTO it runs normal, then may or may not do it again when the PTO is back on. It happened a few times the other day then eventually ran fine with zero issues.
The fuel tanks are always topped off at the end of the day with good diesel, does this sound like a fuel issue or mechanical issue? Any ideas where to start first?
Thanks!
Steve