FIELD: railway track repair machines. SUBSTANCE: device has tool frame with wheels 15 having flanges. Mounted on frame 12 is indication member 28 formed by strip 29 with horizontal supporting surface for interaction with roll surface of rail head. Strip 29 is located before the roll surface of wheel 15 and articulated to plate 17 found across the device and connected with drive 19 movable across the device and in height. Strip 29 interacts with limit switch 30 connected with source 34 of optical and/or acoustic signal. Frame 12 is lowered by drive 13 until strip 22 contacts head 25 of rail 16. Frame 12 is moved across track by drive 14. When stop 24 adjoins head 25 of rail 16, wheel 15 is found in the required position above rail 16, i. e. , radial plane 35 of wheel 15 runs approximately through symmetry plane of rail 16. EFFECT: higher efficiency. 10 cl, 5 dwg
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