[glend (Glen)]

While I was working on my belt alignment I had a look at the spring loading on the worms. The CGX is supposed to have spring loaded worms right? I couldn't find any evidence at all, I could not get the worm carrier to move, I thought I was doing it wrong. So I returned to it today to work out why there was no movement possible in the worms. I tried the recommended pull back technique (put your index fingers on either side of the worm carrier below the bearings and pull back away from the ring, and you should see and feel some movement - not a lot, just enough). In my case, both worms were screwed down tight against the ring gear, no movement. If you check page 25 of the CGX Manual, it sets out the method to check the recoil and adjust the spring loading tension. I have backed off the Distance Adjustment screw so that there is now a small amount of recoil. You don't want the recoil to exceed 1mm and can use the Range Limit screw to control that. I have mine set at about 0.25 - 0.50mm at the moment, just enough to feel it move back. Obviously you need to pay attention to any backlash on the axis your working on, and I still can't detect any.
I am looking forward to some imaging weather to test the new settings and see if there is any change to the PE. Sadly, we cannot assume that they are setup correctly by the factory.