Maintenance Routine Maintenance To keep your spreader running smoothly, follow these recommendations. Wash out the hopper and rinse off all external surfaces after use. Apply dielectric grease on all electrical connection to prevent corrosion at the end of the season and each time electrical connections are unplugged. Clear away any material from the controller. Inspect electrical connections for debris and clean before connecting. 15 LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER