[flintknapper]

Originally Posted by saxosim

Hi Flint,

Could I ask if you could kindly give me some step by step instructions and images of replacing the main shaft and all the relevant gears which fit onto it and also how to test that they all work as expected once the bronze bushing is back in the case.

Hi Simon,
First... allow me to welcome you to the forum. Simon... the main shaft (brake shaft) is one area I did not document with pictures. However, if you will look at post #50 of this thread you will see links for exploded views of all of the parts. This will be helpful in visualizing the assembly. It is really quite simple once you look at it. I will try to find a link to the main-shaft and its several parts. I have seen one elsewhere, in the past.

You mention in one of your threads to test it by hand but i am not sure what it should correctly do as I have never seen one of these in operation yet

.

Simon...you are probably making reference to where I stated I "bench tested it", meaning that before I sealed the case halves with silicone, I first applied power to the rebuilt unit to insure that all was working correctly.

My friend removed the main shaft for me as I did not have a drift and I am not 100% sure of the re-assembly procedure.

Not seeing how it all came apart sounds like a disadvantage, but actually the mechanism is very simple and can really only go back together one way (with the exception of the intermediate gear). I will search for the main shaft link I mentioned above and post it when I find it. Looking at it... is easier than having someone explain it.

Also should there be a cir-clip installed on the main shaft within the winch casing (not the one at the end of the brake assembly), I have seen a few images of other 8274's with what looks like a cir-clip just after the intermediate gear next to the shaft where you can use a brass drift to remove it?

There was not a cir-clip on mine, nor am I aware of any others I have seen or heard of. The main-shaft is held in place by the "lock-plate" see post #42. The LP holds both the drum and the main-shaft in place. You will see the locked and unlocked positions in the pics. I provided.

Also can I ask please when fitting the bronze bush and oil seal, how far into the casing should I tap the bronze bushing, and should the lip seal be flush with the outer edge of the casing?

This is an excellent question and a point that needs to be discussed. The bronze bushing needs to be driven into the bore until it just protrudes inside the case. The reason for this....is that it acts as a "thrust washer" for the intermediate gear (keeping it from rubbing the side of the case).

The lip seal, as you would expect....does fit flush with the outside of the case...and may even go a bit below flush. It must not remain above the surface of the case however, or the brake backing plate will destroy it.

Any help and advice would be greatly appreciated please.

Simon, we at IH8MUD are always happy to help. Please keep us informed, and if you require assistance at any point along the way, do not hesitate to ask for help.

Kind Regards

And no less for you Sir!


Flint.