Newbie:. Coupler won't tighten

Good morning,

Just getting my crossfire pro assembled and I’m having issues with 1 coupler that won’t tighten on the lead screw and motor. Can anyone share their experience? Langmuir is supposed to mail a new one but it’s been 7 days with no update on tracking.

If you want to get it going save your self some trouble and order some good ones. If you do a search for couplings on the forum you can find recommendations.

I stripped one of mine so I made one to get me through a project then just ordered better couplings. These are bad to slip anyway.


Ruland CLX-4-4-F One-Piece Clamping Rigid Coupling, Black Oxide Steel, 1/4" Bore A Diameter, 1/4" Bore B Diameter, 5/8" OD, 1" Length

These are commonly recommended as quality replacements.


Rutland Coupler CLX-4-4-F - Ruland CLX-4-4-F, 1/4" x 1/4" Rigid Coupling, Steel | Ruland


I have to get off this forum. I keep buying stuff. Just bought three of those couplers!!!