They probably go to a sealed bearing anyway so don't waste your time being concerned whether they take grease.
They probably go to a sealed bearing anyway so don't waste your time being concerned whether they take grease.
I would try replacing one or two grease fittings and see if they that grease, maybe two or three pumps after you change the zerks. If they take grease after the change then go on and replace the ones that don't take grease.
SC you maybe right about sealed bearings, but manufactures save money by not installing grease fittings with sealed bearings, so my guess is that the bearings are greaseable.
Yes it wouldn't hurt to replace some fittings to see if they take grease. You said they were press in type fittings which takes a special driver to install them. What I used before I bought this special driver was a small socket. They can be a little tricky to install without the driver.