I took it out in the field today to hoist my 100mm Lunt solar Ha scope for public outreach, everything was going OK and then a nine-year-old with no attached parent came bounding through our telescope forest and as luck would have it, the youngster lost footing and ran into my G11 mount. I was standing opposite of the impact point and caught the scope, mount and boy from toppling over.? The boy got off with a scratch above an eye.? My G11 didn’t get off that easy. After I recovered and started again with a power up at CWD the RA was very erratic and making a bit of noise.? And after about five minutes of minor troubleshooting the RA finally refused to move.? I could hear the motor running but nothing moving like it is supposed to.? I packed it up and went home.? I began troubleshooting components by systematically interchanging DEC components into the RA train.? Upon swapping the suspected RA components (motor, transmission, and coupling I could not find a culprit.

?

So, I have a question on the order of a couple of parts.? I thought I had a diagram of how they went from when I took it apart years ago to upgrade things, but I can’t find that notebook.? It has to do with the transmission assembly and its fastener order.? The transmission goes in such that the couplers couple and then an internally threaded post screws on a threaded stud and holds the transmission to the worm via the oddly named coupler whose name escapes me right now.? I seem to have two very small nylon (delron) washers that fit over the threaded studs.? My question is does the nylon/delron washer go below the transmission mounting flange or above the transmission mounting flange transmission? ?

?

In this picture the white object is the nylon/delron washer and is under the transmission mounting flange and the threaded aluminum post tightens directly against the transmission mounting flange.

?

Or

?

In this picture the white object is the nylon/delron washer between the transmission mounting flange and the threaded aluminum post which will tighten against the nylon/delron washer.? This is how I think it should be, but want to make sure.? It has been ten years since I was inside this part of the mount.? AND YES SHAME ON ME for not paying attention when I took it apart today.

?

Any help would be appreciated.? Thank You.

?

v/r

?

?-??---?Gone...

?-??-??-?