LOL, We've got a new HM235 sitting in the shed now, I had it on the tractor long enough to move it inside...hasn't even cut a blade of grass yet....so I've had lots of time to read the manual, so I can be a paper expert until the real world use comes...
Appears you need to spend several hours setting the thing up to work on the specific tractor correctly, 20" end link height/support chain, check chain limits, cutting height chain etc, to set the cutter bar float set correctly (bar dragging on the ground hard can cause breakaway)
Sounds like you aren't operating at PTO RPM either, i.e. not giving the disks a chance to cut, versus snagging the crop. Book says 6 MPH ideal cutting speed. Not sure on the 1000 RPM...the HM's are only 540!
The HM series came out only a few years back, ours is stamped "made in Italy" The Heavy Duty (615/616/617 etc have been in production a lot longer. We don't have a big enough tractor for an HD machine, so the HM fit the HP and price requirements.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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