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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

450b case dozer

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double d

02-21-2006 17:21:50




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hyd pump high pressure hose busted that goes along frame with no room to get wrenches, I have removed the belly pan and grill, does anyone have any experience with this and know what size the hose nuts are,and is special tools required, all field service people are 2 weeks behind in my area, any input would be appreciated.




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Case450

02-22-2006 05:56:47




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 Re: 450b case dozer in reply to double d, 02-21-2006 17:21:50  
Can one end not be removed from underneath the machine? If it's the hose that runs from the hydraulic tank to the charging pump on front side of the motor you should be able to access the transmission side from underneath. Than like sean said twist the whole thing. I don't really remember but I think if you can raise the bucket out of the way the side panel should unbolt so you can get to the hose. I'll take a look at mine and check back with ya.

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double d

02-22-2006 14:31:06




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 Re: 450b case dozer in reply to Case450, 02-22-2006 05:56:47  
Thanks for the advice,I finally reached a service man and the trick was he had wrenches that were cut in half then he placed cheater pipes over them, with both of us working it was still not an easy job.



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seann

02-21-2006 18:07:45




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 Re: 450b case dozer in reply to double d, 02-21-2006 17:21:50  
I've never worked on a 450, but I had a large hyd line blow on my IH tracked loader once. The line was sandwiched between the tractor and loader frame and was very hard to get to, especially with the large wrenches necessary to remove/install them (I think they were 1 1/4"?). What I ended up doing is to remove the line from the end I could access more easily. Then I "threaded" the hydraulic line through the box end wrench just like you thread a needle. Then I slid the wrench all the way down between the metal to the hydraulic fitting. Then bit by bit I cracked and loosened the fitting until it was nice and loose. At that point I could twist the removed end of the hose and it served as a flexible driveshaft, which allowed me to quickly unscrew the remaining threads and finally remove the line. Reinstalling the hose was achieved the same way, except in reverse. Also, if the hose is blown and will be replaced anyway, it might be helpful to cut the line so a wrench can be threaded or to simply make room for it. And if it's on the lower end of the hydraulic system, remember to have a plan to stop the hyd oil from spilling out all over the place when the hose comes off (or is cut). Not sure if this procedure will work for yours, but it might be something to think about, good luck.

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