A concise on‑site reference for operating the NORAC UC4 Total Control automatic boom height control system, covering basic operation, safety, error messages…
This quick guide provides operators with essential information to run the UC4 Total Control automatic boom height control system safely and efficiently. It is intended to be used together with the full Technical Manual and Installation Manual, and assumes familiarity with the control panel menu.
Key sections include operator safety procedures, basic operation steps, troubleshooting common symptoms, interpreting error messages, and detailed sensor‑and‑rod alignment instructions. A quick‑reference table at the end helps locate solutions rapidly during field use.
| Target height unit | inches |
|---|---|
| Default sensitivity setting | 5 |
| Minimum height override | factory programmed |
Toggle the "AUTO" switch on the control panel; in Manual mode you can use the boom control switches, and in Automatic mode the system controls boom height automatically.
Use the +/- switch while in AUTO mode, or momentarily press the sprayer’s main lift control switch; each press changes the target height by one inch.
The sensitivity setting (default 5) adjusts system responsiveness; lower numbers reduce sensitivity and improve stability, while higher numbers increase response speed.
This manual explains 4 error codes. Open a code for its meaning, causes and what to do: