Wheel bearings - Event Date: 25 May 2017

None. Your hubs have a lube system in place. The top of the "hub cap" pops off, under you will find a rubber cover, remove it, you will find a zert.

Elevate wheel so it can be rotated, while rotating pump until fresh new grease comes out the front.

Done.

Thank you.  Not sure what a zert is, but I will take a look.  I was thinking that a bearing buddy like on my boat trailer would be a great addition. 

Thank you. Something new every day. 

It has two. Hopefully you will NEVER need to mess with them. Google "shwintek slide motor"

Originally posted by furpod None. Your hubs have a lube system in place. The top of the "hub cap" pops off, under you will find a rubber cover, remove it, you will find a zert. Elevate wheel so it can be rotated, while rotating pump until fresh new grease comes out the front. Done.

It is actually a Zerk fitting. The patent for the Zerk fitting was granted to Oscar U. Zerk in January 1929, and the assignee was the Alemite Manufacturing Corporation^[1] (thus the eponymous names for the fittings). Alemite was already marketing ball check valves to accept grease supplied under pressure from a grease gun, such as for car and truck chassis lubrication points, both for OEM installations and for aftermarket upgrade kits which would screw in as replacements for stock grease cups. But Zerk's fitting was an improved style, less vulnerable to dirt and more forgiving of angled approach. Today, many companies make these grease fittings.