Pro Series - keeps throwing belts

[donsiebert]

So, are you saying you should reduce the throttle speed before engaging the blades, as that will be gentler and not a shock on the belt? I don't think Sears recommends engaging the blades at lower than full throttle, but maybe they don't know what they are talking about, which would be typical.

Yes -- I start the mower at choke (full throttle) but I am now starting the PTO at a slightly reduced speed (2/3 throttle) to be more "gentle" in the belt engagement process. Thanks for your comment.