You will need to carry out regular maintenance on your mulcher to keep it running properly. In terms of jobs that need doing daily, it is recommended that you grease the rotor bearings. For best results, give them 1 pump of grease every hour that the machine runs. Pumping 4 lots of grease in and running for 4 hours is the usual operating timeframe. Be sure to also check for loose nuts, bolts, screws, and belts as well.