From: [email protected] On Behalf Of marrtw via groups.io
Sent: Thursday, August 29, 2024 10:16 AM
To: [email protected]
Subject: [FOG] Hard to turn angle/tilt wheel on K975

Thanks to generous help from a couple of FOG members, I recently purchased a 2005 K975. While inspecting the machine, I noticed the angle/tilt wheel is very difficult to turn. From the zero position, it starts turning easily but gets progressively harder, to the point where two hands are required. Assuming contamination, I cleaned and lubricated the threaded rod and nut, but this didn't resolve the issue. However, it turns more easily if I loosen the four screws holding the rod to the saw frame, allowing the rod assembly to "move around" in the frame while turning.?

Suspecting the rod might be bent, I removed it for further inspection. It's straight and shows no evidence of wear. With the threaded rod removed, the trunnion assembly moves freely through its range by hand. I noticed the mechanism used to fix the rod to the frame has a pin through the mount, allowing the rod to pivot in one direction while turning. I assume this pivot function is designed to compensate for any variation in the rod's straightness. Perhaps it's important to mount this pivot in the vertical or horizontal position.

Additionally, the nut is very difficult to move (pivot) on the trunnion with the rod removed. I had to use a large screwdriver to pivot the nut and am having some difficulty getting the rod threaded back into the nut due to alignment issues (although I have attached it once but removed the rod again for further inspection). I'm tempted to remove the nut for inspection, but it's hard to reach and wouldn't be an easy job. Any thoughts or advice on what to check next?