I am a new owner of a b2650 . The manual does not stipulate rpms for different operating conditions. What is the correct operating RPMs for example when using the bucket to move gravel and when operating the Box scraper. Is 2000 RPMs the right range.? Thanks.
This is an age old question, and there is no right answer, however there are wrong answers.
Your machine was designed by someone to produce a certain about of horsepower and torque at a certain rpm. Each is machine different!
However, most of the people that come from the gasoline engine world see the relationship of throttle to work being done. You drive your car at 2000 rpm's when on the highway, and kick it to demand more power to pass someone.
On a lawn mower - the throttle is set to a limit that allows the engine to run near it's max RPM to cut grass etc. Most of us would not cut grass in an idle speed, the results would not be desirable!
Diesels work the same YET differently - most all of them have hydraulic pumps that need to be driven to achieve the desired results.
to answer your question in a more direct way - do NOT baby it, that will cause more harm than good, lean the other way - run it near wide open, it ain't gonna blow up, but will produce the power you need to do what you are doing in a timely manner...
now there are times when backing off the throttle is good idea......around your wife's flower beds is one, or if up against the house and you need a very delicate touch!
whatever is on the tach, run it about 90% of that and you will be fine.
the harder it needs to work, the harder you must work it.........if that makes sense......
new machines do NOT like to sit at idle long.......