4-28 Repair/Replacement and Calibration
MedTrack CR60 Rehabilitation Treadmill Service Manual
Limited Access Switch
If the limited access control is on, the treadmill will not operate unless the
magnetic key is on the Quinton logo on the controller.
Disabling the Limited Access Switch
1. Remove the magnetic key and press
Power
to turn off the treadmill.
2. Simultaneously press and hold the
+
,
-
, and
Power
keys until the 8s on
the display go off, then release the keys.
The control remains inactive, allowing unrestricted access, until you place
the key over the logo again.
Calibration Procedures
Grade Potentiometer (Pot) Calibration
Calibrate the grade pot whenever specified in the procedures in this
chapter.
1. Disconnect power and remove the hood (as described on page 4-3).
2. Loosen the setscrew that holds the grade pot gear to the grade pot
shaft.
3. Restore power to the treadmill.
WARNING! Maintain caution when working near moving parts.
4. Enter open-loop grade mode:
♦
In order to enter open loop mode, grade must be positive.
a. Press
Power
.
b. Simultaneously press
Stop
,
Faster
, and
Slower
on the controller to
place the treadmill in service mode. The display will read
0.0 P000
0.0
.
c. Simultaneously press
Faster
,
Up
, and
Down
. The display will read
0.0 P000 0.0
.
d. Simultaneously press
Stop
,
Faster
, and
Slower
to exit service mode.
The display should read
0.0 P555 0.0
. You are now in open loop
mode.
♦
While in open loop mode, the treadmill takes approximately two
seconds to react to a command.
5. Lower the grade until the treadmill is level.
6. Measure from the bottom of the siderail to the floor at both the front
and rear of the treadmill. Adjust the grade until both measurements
are identical.
