FORM:SBTM OWNERS MNUL
REV: 8-03-10
APPR BY: EW
36
Lifting System (Incline)
The Split-Belt treadmill is fitted with a lifting mechanism consisting of a rack and pinion
system, with a maximum incline angle of 25%. The lifting system is started by a DC
gear motor, with the drive power being transferred to a set of pinions by a chain and
chain wheel. These pinions raise and lower the treadmill by means of a gear and
toothed rack and are fitted with rubber feet, and absorb a large proportion of the weight
of the treadmill and the body weight of the running during an incline run.
The feedback system consists of two parts: the potentiometer unit and the end
switches. Resolution is 0.1% / degrees. Precision is +/- 0.4% / degrees.
The feedback potentiometer tells the data monitor where the lifting system is. The
potentiometer makes 6 revolutions.
The end switches limit the distance covered by the lifting system and are constantly in
use. The data monitor recognizes when the treadmill has triggered the 0% end switch.