Diagnose the Squeaking Issue

What happens here

The video begins with the presenter identifying the problem. He shows his Gehl RT210 skid steer loader arm, which has been making a loud squeaking noise. He demonstrates the sound by manually moving the arm and points to the pivot points where the squeak originates. He mentions a previous attempt to fix the issue and highlights that one specific grease fitting is not accepting grease, indicating a blockage or dry bushing.

Goal: Identify the source and cause of the squeaking noise in the skid steer arm.