Posted 4/10/2012 15:43 (#2329656) Subject: Case Ih 1240 vacuum will not hold steady.
The vacuum pressure is set at 18 and it will jump from 16 to 23, it never gets steady. Planter is new with pto drive on a 305. We were checking seed counts in yard. It make the tractor surge. What could be the problem.
Case Ih 1240 vacuum will not hold steady.
