You have 3 different things going on here so I'l break my response out that way.
For PTO driven attachments: These are designed to operate assuming that the PTO is running at a specific speed. Typically, an attachment running off of your rear PTO is designed to operate with that PTO shaft running at 540RPM. Your owner's manual should tell you what engine RPM will give you 540RPM at the rear PTO. Depending on your tractor, you may have a marker on your dash for that as well. I'd suggest staying with that until/unless you are very familiar with your attachment and know exactly what you can do with it. The same sort of thing applies to your mid-PTO if you have one. It'll be a different speed but the same principle applies.
For 3-point attachments: Again, this is largely going to depend on what you're doing and how comfortable you are with your setup. But "normally" (whatever that is!) you can run at a fairly high RPM to give you pulling power. You'll def want that if you are tearing up compacted earth (i.e. your box blade!) but you may want to slow things down if you are doing something like just leveling out a pile of loose dirt or compost.
4WD: Use it when you need it. Start out in 2WD and if you find your rear wheels are spinning or slipping, engage 4WD.
Afer reading about ounting rear view mirrors in the ttop hole in the loader vertical arm, I ordered one and mounted it. The reflection from the side flood at night just does not get it. I have seen the mirrors mounted on extensions. i would appreciate it if I got some input on extending the...
I have been noticing hydraulic oil stains within the tread of my right rear tire on my 1025R. They are coming from the Main control valve (MCV loader joystick). Three weeks ago I removed the right rear fender to gain access to the MCV fittings. All fittings appeared to be tight with no fluid...
the adjustable stop latch/lever or whatever does not stay in place because of the flimsy plastic that it is mounted to. consequently, my rake drops deeper than i want it to. is there a home made fix for this???
I have a rear blower attached to my 3 point hitch and I noticed lately that it is not rising up level.
The right side goes higher than the left which put the blower at an angle in the air.
I removed the two arms and tested the lift. They both seem to be lifting the same.