C. After reaching maximum speed reduce the speed to 1.0 mph (1.6 kph). If a speed error
occurs then your speed sensor gap needs to be readjusted.
D. Press Pause/Stop.
E. Enter Test Mode again and check the error log for Error 3. If any new errors occurred,
readjust the speed sensor and test again. NOTE: If you are unsure whether an error is
new you can clear the error log by pressing the scan key twice and then repeat steps
3A through 4E.
F. Exit Test Mode by pressing Pause/Stop.
5. Secure the motor cover.
A. Lower the motor cover center into position. See Figure 3.
B. Using a Phillips head screwdriver, tighten the two screws on each side and the two
screws in the front of the unit.
Speed Calibration
1. Calibrate the speed.
A. Stay off the running belt during this procedure.
! CAUTION: During this procedure STAY OFF THE RUNNING BELT! Stand with your
feet on the two steps.
B. In Test Mode press and hold the Heart Rate and Time keys for five seconds. The
display will show “CAL”. The running belt will accelerate to three different speeds and
when completed the display will show “SAV”.
C. Press Pause/Stop to exit Test Mode. NOTE: This procedure should be completed
after replacing the upper display board, the lower control board or the drive motor. If
you press Pause/Stop during this procedure the calibration will not be stored. Exiting
Test Mode while the belt is moving may generate an error condition.
Cybex 425T Treadmill Service Manual
Service
Page 4-6
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