21 INTRODUCTIONCongratulations on your purchase of the NORAC UC4 automated sprayer boomheight control system. This system is manufactured with top quality componentsand is engineered using the latest technology to provide operating features andreliability unmatched for years to come.When properly used the system can provide protection from sprayer boom damage,improve sprayer efficiency, and ensure chemicals are applied correctly.Please take the time to read this manual completely before attempting to install thesystem. A thorough understanding of this manual will ensure that you receive themaximum benefit from the system.YOUR INPUT CAN HELP MAKE US BETTER! If you find issues or havesuggestions regarding the parts list or the installation procedure, pleasedon’t hesitate to contact us via the information given below:Phone: 1-800-667-3921 in Canada (Toll Free)1-866-306-6722 in the United States (Toll Free)0-800-404-8389 United Kingdom (Toll Free)1-306-664-6711 all other regionsE-mail: service@norac.caWebsite: www.norac.ca