Hi; I use a commercial lube place at a large truck stop.. They usually have a pit to work in. They can get the obvious stuff greased, but you will have to get the rest of the fittings. If you can find a lube diagram for your bus, it will help the grease monkey. good luck - - - - Merle
I have the cordless and the pneumatic and wouldn't trade the 40 year old Lincoln pneumatic gun for any cordless grease gun on the market has 3 ways to load and the tubes are my least favorite
One problem I am running into is I need heavy duty jack stands to support the front axle so I can grease the king pins with no load on them. Good jack stands made in the USA are $600, but they also don't seem to be in stock anywhere.