I have owned a Ferris and a John Deere WB and recently bought a new Turf Tracer 48 HP. The first time I greased it it took grease in all the fittings. The last 2 times it wouldn't take grease at any of the fittings other than the ones on the castor wheels and the ones above the castor wheels where they mount on the front of the mower. I waited almost 3 weeks to grease it after it didnt take the first time and same result, and this is a mower i use five days a week and probably put at least 25-30 hours on it every 2 weeks. My grease gun functions fine and works on the J Deere unit i still own. Do these exmarks just not require a lot of grease or what? I just wanna make sure I am maintaining the mower properly because I love it and it is by far the best walkbehind I have ever used and I have driven maybe 10 different brands.