For those with the 4100's does yours have the plastic lock/unlock lever like I see on the 4500's. Mine have plugs where the lever would be. Supposedly the lever prevents the leg from vibrating down while traveling; maybe only required on the ball screw type (4500/4600) and not the Acme screw (4100/4150)?
Bubtoofat wrote: Mine have the lever. Mine are also motorized and the lever disengages the motor for manual cranking. Are yours powered or manual only?
Mike
Mine are manual, but missing the caps (recently bought used) so maybe at one time they were motorized. Del