Zerks clogged?

[Ospreybob]

I am having trouble getting grease into some of the zerks on the dexter.  Any advice?

[Mike and Carol]

Try raising the side of the trailer you are working on.

[Ospreybob]

Thx!

[Cameron]

Yes. On a couple of my zerks I had to raise and lower, raise and lower, putting pressure on and off the suspension a couple times before they'd take the grease.