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My Lister I tronic reverse box is stuck in Drive I have taken the top off and I've worked out roughly how it works the hydraulic oil forces on a piston that releases a cone shape with friction material on it the engine and gearbox has not been run for five years maybe 6 it seems like the friction material is stuck to the metal face the piston that drives the Faulks that supposed to pull the comb away from the cone seems to be stuck if you try manually pushing the 4 Weaver forward to release the friction material to put it into neutral it seems to be jammed when I start the engine up with the cover off they seems to be sufficient amount of oil flows from the pump if I have my finger on the arm feed it is too strong for me to stop it flowing if I put a chisel between the Adjustment Bolt and therefore comma so trying to manually Paul the friction material and come back to release the outer drum it will not move no matter what I have cut the outer casing of the cone the hydrolastic brake that runs on the outside of the drum seems to be fine I would have thought manually pushing the arm forward lever in it forward would manually operate the cone I have had similar sort of problems before on normal Clutches on cars and vans where they have been left for many years where they bomb their self to the surface metal due to humidity or damp looking at the cutaway schematic of the gearbox I can see that there is to boil ways behind the back of the cone I imagine this is to keep the friction material wild to stop excessive wear it doesn't look like the oil feed from the back is to drive the Karen forward only the cylinder in the top that pushes on the Canon operation arm I can select the brake friction material off which will allow me to heat the drum with a blow torch to see whether the fiction material will release from the inside of the cone I wondered whether anybody else had had a similar problem when it had been left for a number of years without being used at the fits of maternal as bonding itself to the metal inside cone if anything in this posting is is spelt incorrectly doesn't make sense I use speech to text I would like to know if anybody else is that the same no problem