Swapping out the flush grease fittings on a Harbor Freight backhoe trencher with Zerk fittings. The stock flush fittings can be challenging to grease. Some users report success with a grease injector needle, but this approach didn’t work well for me.
The downside of this swap is the Zerk fittings are more easily broken off than the flush fittings, but for me the convenience factor outweighed this con.
Products used
A small commission may be earned for any products purchased through links on this site. Thank you for your support!