Rutland 913 - Replacing sliprings

[wizard]

Anybody replaced theirs and can give some tips on how to disassemble the slipring unit.

Any help or pointers greatly appreciated.

 

[jerrytug]

No but I am just buying a used one so watching with interest! I have been told that the makers are helpful.

 

[Storyline]

There is an excellent video somewhere (YouTube?). They make it look so easy - they must do it regularly.

 

[wizard]

The slipring unit is about £76 plus shipping! the sliprings themselves are very cheap hence the need to break it down and repair

 

[wizard]

There is an excellent video somewhere (YouTube?). They make it look so easy - they must do it regularly.

But that only covers the main unit disassembly/reassembly and replacing the main bearings.

 

[Storyline]

But that only covers the main unit disassembly/reassembly and replacing the main bearings.

I assumed you could access the sliprings then. I just looked it up on Google to see if it could find out more and already this thread is listed !
It is also linked on an Australian site - watersports news
Edit: note to self - do not post on a slipring thread when you do not know what a slipring is just remembered seeing a 913 being dismantled.

 

[Mistroma]

I've replaced the bearing and that was pretty easy with the correct tools. Probably very difficult without the correct puller and correct spec. loctite was tricky to find at a reasonable price.

I've never replaced the slip rings so will watch this thread. I wouldn't expect it to be very tricky, probably a grub screw or similar holding the slip ring assembly together. It would be nice to get hold of instructions in case I do need to look at this part of the Rutland.


EDIT: Just looked at the manual and it says.

Check the brushes and slip ring for wear or damage. To inspect the brushes, remove the nacelle by removing the three fixing screws and slide the nacelle
backwards towards the tail fin. The brushes and slip ring can be inspected by removing the four self-tapping screws holding the brush holder assembly in place. Remove any black deposits from slip ring with emery paper. Heavy deposits and reduced power indicate a possible reverse connection to the
battery .......

Could be more detailed but still proves the old adage RTFM .

 

[wizard]

I've replaced the bearing at that was pretty easy with the correct tools. Probably very difficult without the correct puller and correct spec. loctite was tricky to find at a reasonable price.

I've never replaced the slip rings so will watch this thread. I wouldn't expect it to be very tricky, probably a grub screw or similar holding the slip ring assembly together. It would be nice to get hold of instructions in case I do need to look at this part of the Rutland.


EDIT: Just looked at the manual and it says.

Check the brushes and slip ring for wear or damage. To inspect the brushes, remove the nacelle by removing the three fixing screws and slide the nacelle
backwards towards the tail fin. The brushes and slip ring can be inspected by removing the four self-tapping screws holding the brush holder assembly in place. Remove any black deposits from slip ring with emery paper. Heavy deposits and reduced power indicate a possible reverse connection to the
battery .......

Could be more detailed but still proves the old adage RTFM .

The problem I have is that one of the brushes overheated during hurricane Jude and jammed the current was sparking across the gap with the result that the top slipring has a 4mm wide by 20mm long by 1.5mm groove in it! it will take a lot more than emery paper to sort that out.

 

[MikeBz]

I had to send my 503 back to Marlec to have the sliprings replaced earlier this year. Total cost, including replacing the cable (needed it to be longer), a new nacelle (I wrecked the old one getting it off), carriage to return to me, and VAT was 50.60. More than half of that was the nacelle+carriage. Their service was very good.

www.marlec.co.uk

 

[[10753]]

This is probably the video you are referring to http://www.youtube.com/watch?v=apAoHAek-F0

 

[Mistroma]

The problem I have is that one of the brushes overheated during hurricane Jude and jammed the current was sparking across the gap with the result that the top slipring has a 4mm wide by 20mm long by 1.5mm groove in it! it will take a lot more than emery paper to sort that out.

I haven't looked at the slip rings yet but will now check if they need a clean up. I think that you are saying it's easy enough to take apart to clean but extracting & replacing is more of a problem. Perhaps it's a bit like replacing the bearings, easy with right tools and knowledge. Sorry I can't help but will be interested in information on ease of replacement. I'd guess that they will either be friction fit or use grub screws (probably the former).

I had a similar issue the upper swivel on my furler, no obvious means to dismantle and manufacturer wouldn't give out that information They said instructions were complex and special tools required. I hope that Marlec are more helpful.

 

[wizard]

I haven't looked at the slip rings yet but will now check if they need a clean up. I think that you are saying it's easy enough to take apart to clean but extracting & replacing is more of a problem. Perhaps it's a bit like replacing the bearings, easy with right tools and knowledge. Sorry I can't help but will be interested in information on ease of replacement. I'd guess that they will either be friction fit or use grub screws (probably the former).

I had a similar issue the upper swivel on my furler, no obvious means to dismantle and manufacturer wouldn't give out that information They said instructions were complex and special tools required. I hope that Marlec are more helpful.

To check the sliprings and brushes you just remove the brush box on the side of the unit ( 4 screws ) in fact you could probably do this in situ on the boat if you could get in a safe position to do it.

 

[Mistroma]

To check the sliprings and brushes you just remove the brush box on the side of the unit ( 4 screws ) in fact you could probably do this in situ on the boat if you could get in a safe position to do it.

Thanks, I thought that the instruction ex.manual from my post #7 would be correct. I'd initially assumed they covered dismantling for replacement but they obviously only cover inspection and cleaning. The 913 is sitting in a cockpit locker over winter so will be easy to check before refitting.