ATO Wet/Drywall/Floor Sander is a utility model, has the advantages of series excitation motor drive, lightweight, large power, high efficiency, convenient operation, safety, Long lifetime etc. The Floor Sander is suitable for wet and dry sanding on concrete surface of the building walls, floor, ceilings, surface of the sand and stone walls, and surface of the paint and cement, etc. Each ATO sander is equipped with 3 pieces of sandpaper, 1 chassis, 1 sanding disc and 1 sanding sponge pad. ATO Wet/Drywall/Floor Sander Maintenance: Keep the sander clean, clean up the sundries and dust.Often add grease (deceleration box) to keep the sander running flexible.Check the power cord, plug, switch and so on to keep the sander in good condition. ATO Wet/Drywall/Floor Sander Part Exploded View: ATO Wet/Drywall/Floor Sander Installation: On the sander, sponge disc pad, plastic sanding disc and plastic disc sticking plate are bonded together by a magic paste. Sander installation can reference the following steps. Install plastic adhesive tray. Place plastic adhesive disc on the output shaft, and then use a head bolt fix it.Install the plastic sanding disc. Glue the plastic polishing plate to the plastic adhesive plate.Install the sponge sanding disc pad. Attach the sponge pad to the plastic plate. ATO Sander Specification: Power 1280W Voltage 230V/110V(optional) Frequency 50Hz/60Hz Speed 110rpm Sanding Disc Size 370mm Smoothing Disc Size 19 inch Scraping Disc Size 14.6 inch Sponge Disc Pad Size 15.4 inch Certification CE Automatic Grade Automatic Rendering Height 32.8 ft Rendering Thickness 0.12 inch Weight 9.3 lbs Dimension (L*W*H) 15.7*15.7*9 inch/pc Reminder: There is a pair of auxiliary brushes in the random accessories. When the brush is worn to limit, it is needs to replace brush for the sander. Use the a screwdriver to reverse the brush cover counterclockwise, remove the original brush, fit the new brush into the brush holder and screw the cover. Reminder: There is a pair of auxiliary brushes in the random accessories. When the brush is worn to limit, it is needs to replace brush for the sander. Use the a screwdriver to reverse the brush cover counterclockwise, remove the original brush, fit the new brush into the brush holder and screw the cover.