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Case Tractors Discussion Forum
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DB 990 Hydraulics

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mike in wiscons

12-28-2004 16:54:39




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I can not get the hydraulics to work on my 990. The 3 point arms are in the top position, and will not lower. Also, the loader was working the last time I used it, but now will not lift or tilt. I have tried moving all of the assorted levers, but to no avail. Any help for trouble shooting would be a huge help!! Thanks in advance!!!




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ritchie leslie

12-29-2004 10:16:03




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 Re: DB 990 Hydraulics in reply to mike in wisconsin, 12-28-2004 16:54:39  
First thing I'd look for is a frozen up hydraulic valve due to water in the gearbox oil - which is also your hydraulic fluid. Park the tractor somewhere warm for 24 hours for everything to reach above freezing and see if it works. If it does, change the transmission/hydraulic oil and the filter at the same time. If the rubber boots on the gear shifters are worn or cracked, replace them or you will get the same problem again.

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