First I would like to thank all who have been so good as to answer my questions. Seems like I need to remove rubber track, tires and wheels and cages in order to grease bearings. Seems like a lot of work. Just started on my 99" Max II today with the engine servicing, will be degreasing complete unit in and out, what a mess, even had two mouse nests. Is there any videos where I can watch the remove of track, etc.? As always thanks for all the help, it's deeply appreciated.