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cih 1250 variable vacuum
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MX285driver
Posted 7/11/2020 18:50 (#8367775)
Subject: cih 1250 variable vacuum


southern iowa
Getting some variation on the vacuum when planting. This planter was new to me last year and the vacuum was very steady, this year it developed variation during planting and seems to have gotten some worse since I noticed it. Dealer wants to run a test on the pto pump, the vac is run by pto pump. Would this be a pressure check or a flow check, or both? What do they use to do that and how do they hook it up? I can get an aftermarket pump for $1300 I think, only guessing new pump from cih might be $3500. I dont see how a pto pump thats gear driven can put out a variable flow or pressure, less sure but not variable? Seems more like a valve issue to me? Info appreciated. Thanks.
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