Procedure 6.3 - Replacing The Speed Sensor - Precor 9.17 Appendix

Procedure 6.3 - Replacing the Speed Sensor

1. The left side cover (See Diagram 6.1) must be removed during this procedure. It is possible
that the cover will be broken when it is removed. It is highly recommended that a left side
cover (Precor part number 38088-101) is available before performing this procedure.
1. Set the circuit breaker in the "off" position and unplug the line cord from the AC outlet.
2. Lay the treadmill on it's right hand side. Protect the targa and plastic parts from scratching.
Remove the lower front cover.
3. Remove the shield that covers the lower PCA.
4. Carefully, pry the left side cover off of the treadmill frame. If the cover breaks or cracks it
must be replaced.
Diagram 6.3 - Speed Sensor
5. Cover the holes in the end of drive motor with paper or similar material. This will prevent
dropped objects, such as the speed sensor mounting screws from falling into the drive
motor.
6. Slowly rotate the drive motor to expose the speed sensor mounting screws between the
blades of the speed sensor target disk (See Diagram 6.3).
917, 917si Treadmillr
Drive Motor
Drive Belt
Target Disk
Tensioner
Speed Sensor
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