After each use: Clean it from dirt, salt, mud and moisture.Then check the nuts for the wheels and the trucks are tightened, if they are loosely tightened. A few times a year: Loosen the wheels and spin the wheel when holding the ball bearing to make sure it rolls well and no noise sounds from the ball bearingIf you use your skateboard 3-7 days a week every week, we recommend that you loosen the wheels, open the box to the gear and clean from the grease and refill with new grease 3 times a year. If you use your skateboard 1-3 days a week all year, we recommend that you do it twice a year. If you only use your skateboard during the summer season, we recommend that you do it once a year before or after each summer season.Do not forget to use the new Loctite on the screws you loosened when you screw them back!The grease for the switch you are going to use is called: Molykote G67