In this schematic the "Pin-hair" is used most often.
Parts such as the Brake Pedal: Spring, Lever-brake,pedal, Pipe-brake,fr,lh, Pin-cotter,2.5x25 are included in the Kaf300-b2 Mule500 1989 Europe Brake Pedal parts fiche.
The most expensive part in this assembly is the Lever-assy-parking Br.