The local Honda dealer has been around for 40 years, has himself and 3 good mechanics and several others who do the more general stuff. I asked him about using PB-Blaster in through the end auger support screw. He said he loads all Hondas with 30 weight oil.
Could not find the Honda thread where greasing the nub ends going out out of the auger gearbox was discussed so posting here.
The issue was a shear pin could break and the nub turn inside the rake reaming the rake ID larger. The dealer said they are greased at the factory. Grease there was not a maitenance item but when doing a service he includes putting grease there. He said there were no issues of wear from shearing a pin and screwing up the rake.