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Farmall & IHC Tractors Discussion Forum
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Differential Lock 66 series....

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migraine

04-09-2005 07:15:38




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Tried to read my trusty IT manual last night to figure out this lock. My 966 had a small block of wood wedged under the lip of the shaft so I don't know when the thing was last used or what the problems were. The piston seems to be frozen solid so I guess I need to take off the bottom cover and remove all the parts in there? Will hydraulic oil leak out if the tractor is not running? Is it possible that the oil pressure was not releasing the activator and thus they they locked it up so not to be engaged all the time or were they just using the pedal as a foot rest. With this thing I could believe almost any story told. migraine

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K.B.-826

04-09-2005 19:38:43




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 Re: Differential Lock 66 series.... in reply to migraine, 04-09-2005 07:15:38  
Migraine, I would guess that they were trying to lock it out, as the control valve is known to stick. About two years ago, the control valve stuck on our 966, not enough to totally lock the diff, but enough to make some bad noises. Sounded like bearings going out. Our local Case-IH dealer's tractor guy looked right at it and knew exactly what the promblem was, got it unstuck, and was going to remove the pedal, but that got forgotten amongst fixing the damage of the cab fire they started doing some work behind the dash, long story, don't get me started. If I was you, I wouldn't even mess around trying to get that diff lock working. They don't hold on a hard pull. You'll see why if you remove the disks. Definetly one area where Deere had IH beat.

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