roll bar mountings

[fran63]

i have a roll bar for my power major but it did not have any mounting bolts when i got it.what thread are the mounting holes in the rear axle and does anybody know where i could get the correct size bolts from?

thanks

fran

[Brian]

Roll bars usually clamp around the axle rather than use the four mounting bolts on the top. These holes are into cast steel and would break out under a shock loading.they are also not very deep.

The roll bar mounting pad goes under the wing mountings, replacing the wing retaining bolts with longer ones and lifting the wing slightly. Another pair of bolts may then clamp around the axle slightly further outboard. Some roll bars also have a plate that mounts under the axle to take any shock loadings and stress away from the axle castings.



Roll bar mounting on my Super Major, not very clear but it will give you an idea of how it is done.

[Daves rusty bits]

The bolts for my roll bar are 10" x 5/8" and it needs 4 in total.


It took me ages to find them but they do get advertised on fleabay now, depending where you live. Dave

[county654]

Hi Dave,
what kind of belt driven implement is in front of that tractor?

[Daves rusty bits]

Its a saw bench Matthias, I keep it on a pallet and move it around with the rear forks, or at least I used to I`ve recently bought a PTO 3 point linkage bench as its quicker to move and set up and also needs less room to work in. Just can`t get rid of the old one.
Back on the subject of roll bar attachment you can see in the picture mine doesn`t easily fit down as far as it should. I have to take it off to get the tractor in the shed and its a bit of a pain. I was going to try slackening the 4 holding bolts then tap the bottom brackets with a hammer to see if I could find a "sweet spot " where it would drop into place then retighten the bolts. Anyone got a better way? Thanks Dave

[Bensdexta]

Back on the subject of roll bar attachment you can see in the picture mine doesn`t easily fit down as far as it should. I have to take it off to get the tractor in the shed and its a bit of a pain. I was going to try slackening the 4 holding bolts then tap the bottom brackets with a hammer to see if I could find a "sweet spot " where it would drop into place then retighten the bolts. Anyone got a better way? Thanks Dave

Surely without the bolts fitted through the verticals the roll bar is not much use; in a roll-over accident the upper frame would just pop off the lower frame...

Do you know why it doesn't fit all the way down? Is it lack of alignment between top and bottom frames, in which case your plan of slackening the four axle clamp bolts might work. Perhaps shimming the brackets might improve alignment?

Or may be the frame or sleeve plugs are out of round; a little judicious filing might help. But your plan above sounds the first thing to try.

[Daves rusty bits]

That's right Ben, so now I`ve got the roll bar I want it fitting properly. If I slide either side on by itself it goes on easily so I`m hoping a bit of tapping will sort it. My main bugbear is that I was looking for a folding bar and family bought that one for my birthday so I`ve got to persevere with it Dave