FORM NO. 56043129 - SR 1900 - 3GENERAL INFORMATIONINTRODUCTIONThis manual will help you get the most from your Nilfisk rider Scrubber-Sweeper. Read it thoroughly before servicing the machine.Note: Bold numbers and letters in parentheses and underlined indicate an item illustrated on pages 14-17 i.e. (B).This product is intended for commercial use only.PARTS AND SERVICERepairs, when required, should be performed by your Authorized Nilfisk Service Center, who employs factory trained service personnel, andmaintains an inventory of Nilfisk original replacement parts and accessories.Call the NILFISK DEALER named below for repair parts or service. Please specify the Model and Serial Number when discussing your machine.(Dealer, affix service sticker here.)NAME PLATEThe Model Number and Serial Number of your machine are shown on the Nameplate on the machine. This information is needed when orderingrepair parts for the machine. Use the space below to note the Model Number and Serial Number of your machine for future reference.MODEL NUMBER ________________________________________SERIAL NUMBER ________________________________________HOPPER SAFETY SUPPORTWARNING!JACKING THE MACHINECAUTION!Never work under a machine without safety stands or blocks to support the machine.• When jacking the machine, do so at designated locations (Do Not jack on the hopper) – see jacking locations (8).Make sure the Hopper Safety Support (5) is inplace, by using the Hopper Safety Support Handle(I) whenever attempting to do any maintenance workunder or near the raised hopper. The Hopper SafetySupport (5) holds the hopper in the raised positionto allow work to be performed under the hopper.NEVER rely on the machine’s hydraulic componentsto safely support the hopper.