posted December 28, 2003 18:57               

You say that you cannot move the gear change levers and yet you can move the selectors. I would still be investigating the selectors.

When you say you can move the selectors, are you moving them their whole range of travel back and forward? Can you see gears or gear couplings moving? Has a selector fork broken or has the little screw that locates the selectors to the shaft dropped out?

If you have to split you will have to split at the clutch, front gearbox and gearbox/axle so I would make very sure the problem is not a jammed selector.

regards

posted December 31, 2003 12:42               

Sounds like your problem is the same as mine, which I’m sure, is very common.

If you remove the gear lever cover, you will see the two ‘U’ shaped selectors below. The ball on the lower end of the gear lever moves each selector forwards and backwards and, when in neutral, moves between each selector. When the parts have worn, it is possible to move the ball out of engagement with a selector, whilst still in gear, and the whole system gets gammed.

You should be able to slide both selectors to the neutral, mid way, position and replace the cover, making sure that both gear levers engage correctly.

You can avoid the problem, in the future, by selecting the gears carefully.

Brian,

posted December 31, 2003 18:16               

I think that has sorted things very nicely. Richard, your description was great and Tony, your reminder of Wayne's repair data finished the answer off well.

Ssalg, I hope this sorts your problem. It is something that all Dexta owners and drivers learn to cope with. I have a Ferguson and a Nuffield that do the same thing occasionly and its a pain in the butt when it happens but is really no big deal to sort.

regards

posted January 02, 2004 18:17               

I am at a total loss as to what is jamming your selectors leaving the tractor in two gears at once. Again it sounds like a broken selector more than anything else.

The other possibility is a broken or stuck interlock. These are plungers on the selector rails that should prevent the movement of the selectors when the tractor is in gear. They are fitted through a small hex. plug on the lefthand front side of the gearbox. If it is very cold with you and there has been condensation in the gearbox, these interlocks could be frozen.

It is not too bad to split the tractor down, we used to split at the rear axle with a jack and push the rear axle away on its wheels whilst balancing it with a lever in the top link or drawbar. This will enable you to get into the back of the box and see if the problem is in this area.

Keep us informed as this is an interesting problem.

regards

Brian