Help regarding mog gears.

[mdt]

Today coming back home I lost my top 4 gears, about a month ago I lost my bottom 4 gears but no idea how got them back. Any ideas to what the problem is? It's a 8speed in a u1000. It's rather painful travelling at 15mph wen it can do 50mph. Tia

[garth mc garth]

low air pressure perhaps? does the ram hiss when you flick the lever sideways between ranges?

[Dan Curtis]

we had the same thing in our u2100. The problem was the air valve on the back/top of the gearbox. Ithad seized, so you couldn't change between the high and low boxes (1-4 & 5-8) cheap part and easy enough to fit......if you can get in between the chassis/pto shaft/rear drive shaft! I nearly couldn't get out again!

[mdt]

No don't think can hear a hiss. Have plenty of air pressure though. Is it the box on the top of gearbox?

[garth mc garth]

every now and then mine does it, usually when i pull away without max air pressure. i just stop and sit with it in neutral and flick the lever side to side til you can hear the hiss of the ram.

[Dan Curtis]

No don't think can hear a hiss. Have plenty of air pressure though. Is it the box on the top of gearbox?

 

On ours it's on the nearside rear top corner of the gearbox. I think it's held in by four 14mm bolts and has a 3 or 4mm plastic air line into it. Ours has a push fit joint in that air line. I think I had to take something else off to get to it, but I can't remember what

[mdt]

Ha lost count of how many times did that, even on the move as well. Will have to explore in morning.

[Dan Curtis]

I've had a quick look on google but can't find the part name. I reckon if you contact your local dealer they can probably tell you what it is if you say hi/low changeover air valve

[mdt]

Thanks for that chaps!!

[david]

every now and then mine does it, usually when i pull away without max air pressure. i just stop and sit with it in neutral and flick the lever side to side til you can hear the hiss of the ram.

 

yep nothing better than finding a box fuel of neutrals, just as you'v pulled on to a bizy road