JD 790 First Impressions & Questions!!!!

[foggy1111]

I had the same model 790 and 70 loader combination as you do. (older 30 HP engine too).

I loaded the rear tires and always carried an implement on the back for loader work......and this combo worked like a champion. I had shimmed the hydraulics too.....and cannot remember a rear wheel ever coming off the ground.

Keep in mind the tractor hydraulics do not have the heaviest capacities. None the less....this unit is nicely balanced and will pick up most everything you want to do with it.

You have a front weight attachement on your tractor. That is an optional bracket. When I bought my tractor I did not have a grill gaurd either.....nor the aforementioned bracket. I bought the bracket and made a grill gaurd to attache to this bracket. Worked out nicely.

Here is a pic.....and I'll see if I can find the thread if you cannot find it here via a search on TBN. (try "grille gaurd" in the custom area?)

Note the second pic.....as a result of that incident I put stair grating into the grille guard to eliminate future occurrences. Operating in timber is rough on things. I see your hydraulic lines have had an incident or two also. Beware.....branches will get 'em. Don't ask me how I know.

OH....keep in mind that the gaurd needs to be carefully placed in order to get your hood open and needs to tilt to get access to your battery (if made similar to mine).

 

[MaxxB]

Wow, thanks for all the info everyone!

Seems like getting an implement will be the excuse i need to take care of my ballast issue. nice!

I'm on the prowl for wheel weights though...i didn't realize they were gonna be so expensive! But, I've got a good feeling about a few neighbors of mine.


regarding the grille i think I'll see if i cant barter my way to having a friend weld me up something fun. I think what I might do is get a gel battery and install remote posts. Even if i don't need to access the battery, it should make for easy jumping on other vehicles.

I'm going to really lay down on that one side that's got the brake chatter and get back to you all. I do have another neighbor with a shop who tinkers on this and that so i might have him look at the brakes too....not that I'm not somewhat mechanically inclined...its just that a gravel yard makes for crummy wrenching.

 

[RoyJackson]

I'm going to really lay down on that one side that's got the brake chatter and get back to you all. I do have another neighbor with a shop who tinkers on this and that so i might have him look at the brakes too....not that I'm not somewhat mechanically inclined...its just that a gravel yard makes for crummy wrenching.

Before you tear into the brakes, try this:
Run your 790 a half mile (or so) with your foot on the brakes (make sure the left and right pedals are hooked together). The chatter is probably a glaze and running as I suggest above might break the glaze. There should be enough pressure on the brake pedals to slow, but not stop the tractor.
My old 790 brakes would chatter too, and that's what worked for me. I'm pretty sure it's repeated, light pressure on the brakes that causes the glazing (which results in the chatter you hear).

BTW, you used to get that same chatter with some (automotive) disk brakes pads. That's when I learned the trick I described (years ago). I guess pad compounds are different now as I haven't heard of pads glazing up in years.

 

[grnspot110]

My 2004 790 has the "two-pipe" grille guard, I wanted something a little more 'protective', so I made this from some 1/2" angle iron & a piece of expanded metal. ~~ grnspot