sd-45

[rustycoupler]

 Just bought sd-45 from Kleins the darn thing is squealing like a stuck pig, do i just have to break it in or what? It has rapido couplers on it if it helps to date it, looks great though.Did not add grease just the recomended oil in the correct locations.

[James in FL]

I don't have that lokie.
Generally, a squeal is from a bearing or bushing crying for oil.
When you run it without the shell, can you tell where the sound is coming from?
Motor? Trucks?