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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Re: John Deere 450C tranny wanted

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Roy Suomi

07-07-2012 16:45:25

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Just changing the transmission isn't that easy..The entire rear center section is the Transmission..The clutchpacks that do all the hydraulic gear changing are located in the front of the transmission case.. To remove the transmission case from the machine would leave the machine with only 2 engine side frame rails standing in the chassis and everything else gone ... If you can imagine that....And , whats to say that HLR was assembled right ..Everything has to jive or it won't work correctly.. Is the clutch pedal cross-shaft free to pivot on the left side of the engine clutch housing..There is a concoction of linkages on that left side that has to be free and moveable where that detented 1/2" vertical adjusting bolt is.. Inside the clutch housing behind the engine there are 3 adjustments.. One is the finger height of the engine clutch fingers..Another is the actual pressure setting at the pressure relief valve under the right hand opening [rubber plug], then the actual HLR speed of shift / pressure adjustment under the left handed rubber plug in the engine clutch housing.. All these have to jive....Then out of despiration there is a speed of shift adjustment on the right handed side of the transmission case inside a steel plug hidden by brake rods and fuel lines and battery cable.. Good fishing...Not a job for a novice..sorry

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Roy Suomi

07-07-2012 16:52:47

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 Re: John Deere 450C tranny wanted in reply to Roy Suomi, 07-07-2012 16:45:25  
OH.. I almost forgot....There is a 3-3/4"pedal free-play adjustment that has to be done..That measurement is from the top of the pedal to where the throw-out bearing contacts the engine clutch fingers..This is adjusted on that left side 1/2" vertical bolt adjustment..Provided everything is free and moveable as stated before..

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