Lubricator Clutches

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Lubricator Clutches

Post  Jim the Shovel on Sun 02 Sep 2018, 11:41 pm

After only about a total of 50 hours in steam the clutches are knackered.
You can move the shaft from side to side and up and down with all the play.
The clutches still work just about. I only noticed it because I had previously fitted a cranking handle
to replace the knurled knob. The crank was not flipping round so knew something was up.
I think the problem is because the bearing is all one sided. Everything is hanging on the inner clutch.

Has anyone else come across this. Would be interested to know and how it was overcome.

I'm thinking of fitting a third clutch or bearing on the opposite side and making a proper crank supported on both sides
and symmetrical about the ram. Going to be a bit fiddly to assemble but will give it a go. A plug in the end of
the tank opposite the ram would also help the assembly as you can then push the ram back when assembling the crank.

Just a thought but am I right in thinking that you only need a clutch on the lever. The inner one could be a proper bearing and
also the one I'm proposing on the opposite side.
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Jim the Shovel

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Re: Lubricator Clutches

Post  Steve Traill on Mon 03 Sep 2018, 8:30 pm

Chuck it in a drawer & get a toothed wheel one! They last almost forever.
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Re: Lubricator Clutches

Post  Jim the Shovel on Mon 03 Sep 2018, 10:43 pm

Thanks for your comment Steve. After spending all evening doing the
modifications described above that's the conclusion I'm coming up with.
It's coming together nicely but still not 100% happy with it.
Although it will be an improvement it's still a bit crude and haven't got
a lot of faith in them clutches.
Think I'll finish this mod but may well go for a ratchet type
from Live Steam Models in the not to distant future.
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