A method of operating a mechanically operated brake having an electric motor for operating an adjuster mechanism that may include the steps of: a) providing a brake rotor and friction material for selective engagement with the brake rotor, b) providing a target running clearance between the brake rotor and the friction material, c) applying the brake by forcing the friction material into engagement with the brake rotor, d) determining that the friction material is set in a compressed condition, e) releasing the brake, f) operating the electric motor to operate the adjuster mechanism to adjust the instantaneous running clearance towards the target running clearance, g) then applying the brake.