I.H.C.: High pressure switch – open – normally open. Opens 305 PSI. Closes 395 PSI. Tractors: 786, 886, 986, 1086, 1486, 1586, 3088, 3288, 3388, 3488, 3588, 3688, 3788, 4386, 4568, 4586, 4786, 5088, 5288, 5488, 6388, 6588, 6788, 7288, 7488, Hydro 186. Combine: 715, 1420, 1440, 1460, 1470, 1480, 1620, 1640, 1660, 1680 Windrower: 4000, 5000. CASE: High pressure switch – open – normally open. Opens 305 PSI. Closes 395 PSI. Tractors: 585, 595, 685, 695, 885, 895. Combine: 782, 1400, 1822, 1844.