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A. It is the replacement for channel 1 in the 30047500 wireless chassis ear system.
A. It is often placed at the most likely source initially, such as a suspect wheel bearing or gearbox mount.
A. It provides a reference sound level, allowing other channels to be compared and ranked accurately.
A. No audio, intermittent cut-outs or excessive interference on channel 1 despite good batteries suggest replacement.
A. Use the supplied clamp or strap so the sensor remains firmly in contact throughout the road test.
A. Weak batteries can cause low signal strength, noise or dropouts that hinder diagnosis.
A. They should hear clear audio on channel 1 when the sensor is lightly tapped while the receiver is monitored.
A. It enables quick, accurate noise localisation, reducing guesswork and unnecessary parts replacement.
A. Inspect them before diagnostic sessions, looking for cracks, loose switches or damaged antennae.
A. Clean it carefully with appropriate wipes, avoiding fluid ingress into the casing to protect internal electronics."
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