Hesston 700720301 Tachometer

Hesston 700720301 is a tachometer module used in industrial baler and conveyor control systems, typically mounted on a Case or Hesston monitor chassis. Common failure modes for this class of devices include burned-out input/output relays, degraded potentiometers, and corrosion‑affected PCB traces due to vibration or moisture ingress. First‑check diagnostics: verify the 24 V DC power supply to the tachometer; inspect all I/O connectors for loose contacts or visible damage; and review any error codes displayed on the monitor’s diagnostic panel for indications of signal loss or over‑current conditions.[oss-gpt-20b]

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