Im looking for a little direction..

1) FOREMAN 2013…on the front wheels, I getting a little metalic rubbing or slight squeeking during movement…Are those grease zerks I see on the inside front wheels, or they for something else? Is there another way to lube?

2) RANCHER 2003… on front wheels as well, getting almost same noise during riding…but I dont see anyway to lube hubs…can I get to the bearings to repack or another way to lube wheels?

Thanks for any input,