PROBLEM TO BE SOLVED: To provide an apparatus for installing a switch device, which hardly causes displacement of the switch device, etc., and to provide a method for installing the same.
SOLUTION: There is provided an apparatus for installing a switch device such as a switch, a crank, or the like, for switching/locking a turnout in a railroad. The switch device has a casing 104a which is installed by fixtures 11a, 11b, and adjusters 12, 12'. The fixtures 11a, 11b are constructed so as to respectively retain a side surface and an upper slant surface of the casing 104a of the switch, the crank, or the like. The adjusters 12, 12' are each interposed between each of fixed portions 13, 13' and the casing 104a, which slide along side surfaces of the casing 104a in opposed directions across the casing 104a, to thereby press the casing 104a toward the fixtures 11a, 11b. The adjusters 12, 12' each have a surface for retaining the side surface of the casing 104a. At least one pair of the adjusters 12, 12' are arranged in directions orthogonal to each other.