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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

jd 450e longtrack dozer pressure loss in reverse

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Gary

03-21-2004 13:32:08




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I have a 1987 jd 450e longtrack dozer and after running a couple of hours I have to bring the rpms up to get it to go into reverse seems like a pressure loss in the hydraulics when the oil gets hot . Any ideas? Also looking for a seat for it.




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Jonathan

03-21-2004 16:03:13




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 Re: jd 450e longtrack dozer pressure loss in rever in reply to Gary, 03-21-2004 13:32:08  
If it slips in reverse...and pushes ok in high and low forward, then the transmission has to come apart...there is a clutch pack in there for high forward---low forward...and one for reverse...entailas removing engine, dash console assembly, clutch housing and transmission top cover....then remove the "H-L-R" clutch assembly..



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Gary

04-26-2004 18:15:28




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 Re: Re: jd 450e longtrack dozer pressure loss in r in reply to Jonathan, 03-21-2004 16:03:13  
Thanks for the info and sorry for the long delay in responce computer problem. Do you know where to get a shop manual for this machine? thanks Gary



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