A patient support apparatus includes a frame, a plurality of casters coupled
to
the frame and engaging the floor, a wheel supported relative to the frame for movement
between a raised position spaced above the floor and a lowered position engaging
the floor, a drive assembly that is operable to drive the wheel and propel the
patient support apparatus along the floor when the wheel is in the lowered position,
and a foot pedal coupled to the frame and movable between a brake position in which
the plurality of casters are braked and a steer position in which the plurality
of casters are unbraked. The wheel is in the raised position when the foot pedal
is in the brake position, and movement of the foot pedal from the brake position
to the steer position results in movement of the wheel from the raised position
to the lowered position.
