QUOTE(troth @ Jun 23 2018, 12:58 PM)
QUOTE(dlee6204 @ Jun 23 2018, 03:40 PM)
I start the pin on one side and make the spring into a c-shape and use a small screw driver from the other side. Straighten the spring out and push pin further as I pull screwdriver out.
The screw driver on the other side is key.
Make sure you put one of the retaining clips on before you start. Lots of curse words if you accidentally push it too far.
So I did this just the other day. I tried to post then but my computer was playing up and would not load the photos
Anyway all now seems well so here goes. I hated the randomness of the process with screwdrivers etc. and worried about the safety so came up with a process which worked well. Still need an extra pair of hands though. I used a piece of threaded bar (5mm) and a bit of broom handle to make a pull handle (below)which could be installed as per the photo 2. Then the spring can be secured on the rod with the washer (just slightly bigger than the OD of the copper pipe) and nut. Pull the handle to compress the spring with the base plate firmly supported and then have somebody place the half pipe over the spring and hold firmly . The length of the copper pipe needs to be the full length of the compressed spring so it sits within the washer. The threaded rod can then be unscrewed by hand and the pin (with one circlip installed) can be pushed in once the washer and nut have been flicked out with a small screwdriver. It took a couple of goes to perfect the technique but I found it much more controlled. The person holding the pipe down needs to do so firmly as that spring wants to bend out! I did have to do a little levering under the spring to get it positioned perfectly but again as longs the pipe is firmly held down there is no issue.
Good luck!