Abstract: A method and an arrangement for controlling the feed of a rock drill. In the method, the pressure in a pressure conduit (7a) of a pressure-fluid-operated feed motor (6) is measured, and when the pressure value measured is below the pre-set threshold value, the volume flow of the pressure fluid delivered to the feed motor and thereby the feed rate of the feed motor (6) are adjusted, and when the pressure value measured is above the pre-set threshold value, the feed is adjusted by adjusting the pressure of the pressure fluid delivered to the feed motor (6). In the arrangement, a pressure detector (13) is arranged in the pressure conduit (7a) of the feed motor (6).

Abstract: An arrangement for control means in rock drilling equipment, comprising an electronic control unit for controlling operating means. The control unit comprises an electronic basic set-value memory storing set values for the operating parameters of the different operating means; and a separate electronic operator set-value memory in which the operator can store set values he wants to give to the operating parameters of the different operating means. The control unit can be connected to read the set values for the operating parameters from either one of the memories.