Servo steering system for vehicle - has neutral position set by cylindrical hardened bolt which projects into recess in valve bush

摘要

A servo steering system as in the main patent, has the valve bush (20) neutral position in relation to the steering shaft (15) adjusted by a cylindrical bolt (35), located in a radial hole (37) of a pot shaped projection (47) of the steering worm (8). - The bolt has an eccentric peg (36) to mesh with a recess in the valve bush. The bolt is manufactured from a harder material than the projection (47). The bolt casing has a spline to prevent twisting inside the boring (37). The bolt is internally threaded (38) to receive a suitable work tool. The bolt meshes with the valve bush between the two valve bush bearing rings (32, 33).