I come from a formally trained automotive technical background, and achieved a City & Guilds in Hydraulics - Pneumatics along the way, complimented with several years experience in various manufacturing and service industries. I'm not trying to impress, but to provide a background as to why I have a profound insight for the mechanical/electrical maintenance needs of machinery. I run a stump grinding business for the past 20 years and still have and depend on the original stump grinder I started my service business with. I would not expect the average reader of this forum to have the transferable skills which would allow a rebuild of their own equipment as I have done with my old 1997 Carton grinder---I'm an old school believer in keeping things simple without all the "bells and whistles" of modern grinders, and yes I still use finger teeth. My objective is to highlite the importance of equipment maintenance. Over the past 20 years I have worked with many tree surgeons, and have often witnessed outright equipment abuse, and neglect. Needless to say those individuals came and departed the business marketplace. perhaps wondering why their chain saws, chippers etc. were costing so much to run with frequent breakdowns. We are all in a very labour intensive game that relies on our gear. I also understand the pressure demands on our time, and how easy it is to delay, overlook, or forget pending equipment maintenance which is why I have created the below maintenance schedule for myself. I have found inclusion of this scedule along with H&S risk assessment, method statement etc. documentation to be invaluable in creating an image of professionalism to who ever I subcontract to. I have worked with large construction companies. A bespoke maintenance scedule carries large kudos.