Lofrans Tigres Electric Windlass Dismantling - HELP!!

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pjobson

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I have damage to the mainshaft of my Lofrans Electric Windlass. I have removed the gypsy and inner clutch cons as well as the rope drum and access plate on the port-side. I thought that the shaft would then simply slide out but the main-gear has a convex gear that fits snugly over the worm-drive and this prevents extraction. I think that I have to pull the worm-drive out but it is pressed into place and I can see no method of attaching a puller to it.

Has anyone got any advice?

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Thanks for the advice superheat. However, looking at the exploded view, there is a circlip on the other side of the main gear. I could try pressing the shaft/circlip onto the bearing on the opposite side but it will press on the inner-ring of the bearing and I think that that would damage the bearing rather than pushing it out of the housing. Any other ideas?
 
I assume you have undone bolt 345 next to the drum.

Looks like the shaft enters from the gypsy side. I would see if all three circlip s 324 along with other slide on parts can be removed first, but it is probably just stuck in the bearing 323.

I would apply light press pressure and see if it presses out but wouldn't push to hard.

PM me if you want to chat.i have a press at Reading if you can get over.
 
pjobson said:
I have damage to the mainshaft of my Lofrans Electric Windlass. I have removed the gypsy and inner clutch cons as well as the rope drum and access plate on the port-side. I thought that the shaft would then simply slide out but the main-gear has a convex gear that fits snugly over the worm-drive and this prevents extraction. I think that I have to pull the worm-drive out but it is pressed into place and I can see no method of attaching a puller to it.

Has anyone got any advice?

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I happened to dismantle my Tigres and I remember that indeed the worm gear has to come out together with the main shaft but it was not a hard job. I vaguely remember that I opened the front round window (the one used to check the oil level) to help the worm gear out but I cannot be totally positive. Just try that direction.

Daniel
 
Daniel. That sounds like a good plan. As long as there is nothing delicate beyond the oil filler, I should be able to gently drift the worm-drive out whilst rotating the main gear at the same time. I'll post again if it works.
 
Thanks Nigel. You have obviously solved the problem of getting the shafts out! I am going to try going-in through the oil-sighting orifice and get the shafts out in tandem. If you have any advice on this .... the more the better!!

I am going to keep a photo-log and write-up the whole process afterwards with the hope that others might find it useful in future.
 
Absolutely sorted! I unscrewed the oil sighting window and found that it does not have a screw thread - it is just a plug with a seal. This exposed the end of the worm-drive shaft. I gave it an exploratory tap with a drift and the shaft simply dropped-out. Easy as that!

The main shaft should come out simply now.

Thanks to everyone for their advice. I have not taken the rest apart yet since I am taking photos of each step so that I can document the whole procedure. I will post a link to it here when done (may take a while since replacement shaft can take up to 6 weeks!).
 
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