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OPTICAL RPM SENSOR INSTALLATION
Installation
Optical RPM Sensor Installation Guide
1-3
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INSTALLATION
This section describes the procedures for installing the optical RPM sensor.
CONNECTING THE OPTICAL RPM SENSOR
1 Cut a one inch strip of reflective tape from the roll provided.
2 Clean a flat section of the harmonic balancer. Attach the strip of reflective tape.
Note: High RPM engines will require a longer piece of reflective tape; use a
1.25-1.5-inch strip of tape.
Figure 1-2: Attach Reflective Tape To Harmonic Balancer
3 Attach the optical sensor lead to the hardware stack. You need to remove any
inductive leads from the RPM module if installed.
4 Attach the small power lead from the optical sensor lead to the CPU module.
Figure 1-3: Hardware Stack—Optical Sensor and Power Lead
reflective tape
optical sensor lead
on RPM module
optical sensor power
lead on CPU module