The stairclimbing mechanism
on the Escalera automatically adjusts for different heights of steps . You can climb all
the way up to a 10 inch high curb or all the way down to a quarter inch high threshold.
The operator doesn't have to make this adjustment. It is interesting to note that the
Escalera climbs a tall step at the same speed that it climbs a short step. That's because
the lifting cams on the Escalera have to come around until they find a short step. Besides
climbing thresholds you can also climb a large crack in a sidewalk. Again it lifts the
wheel up and hops it over the edge.