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CanberraOceanRacingClub / namadgi3

Maintenance management system for Namadgi 3
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Genoa winch on port side is failing #757

Closed smr547 closed 2 months ago

smr547 commented 6 months ago

BEWARE -- the winch ratchet recently failed allowing the working sheet to rotate the winch drum in the wrong direction -- the handle in the winch spun out of control.

Users should beware that this can cause serious injury.

The winch needs to be serviced urgently to restore it to normal operation. Reopening #382

SamMcDonald2538 commented 6 months ago

Hey Steve, is there a record of the last maintenance carried out on the winches? Lewmar recommend annual services are carried out. I will contact the local distributor to enquire about service kits, if they are due or overdue, we should do all of them.

smr547 commented 6 months ago

Hi Sam (@SamMcDonald2538)

The last strip-down and service was done by @GarthBrice in Opua in early 2023 -- before the NZ to Fiji Passage -- see issue #382 for history.

I suspect that this problem is a sticky or failed spring in a ratchet mechanism.

It deserves urgent attention. There is a risk that the clutch will not "lock" after tension has been put on the genoa sheet. The result is a winch handle spinning at high speed. I got whacked by the handle and it's not pleasant.

I'm happy to do the servicing on 29 Jan if @pjwain and @pcbaston (the skippers before me) are happy to put up with the problem (i.e. Don't use that winch)

budget=$300 if we need to find someone to do the work urgently

GarthBrice commented 6 months ago

StevenI agree with your assessment of the problem causing the winch failure. Given that one winch has failed I would recommend that all the other winches need to have a full service. It would seem that they have done a lot of work since the last service in Opua. Kind RegardsGarthSent from my iPhoneOn 11 Jan 2024, at 07:31, Steven Ring @.> wrote: Hi Sam @.) The last strip-down and service was done by @GarthBrice in Opua in early 2023 -- before the NZ to Fiji Passage -- see issue #382 for history. I suspect that this problem is a sticky or failed spring in a ratchet mechanism. It deserves urgent attention. There is a risk that the clutch will not "lock" after tension has been put on the genoa sheet. The result is a winch handle spinning at high speed. I got whacked by the handle and it's not pleasant. I'm happy to do the servicing on 29 Jan if @pjwain and @pcbaston (the skippers before me) are happy to put up with the problem (i.e. Don't use that winch)

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pcbaston commented 5 months ago

I could look at it but I've never done that before. Chris green will be with me. If it's a spring or pawl, are there spares held?

Paul Baston

On Thu, 11 Jan 2024, 07:31 Steven Ring, @.***> wrote:

Hi Sam @.*** https://github.com/SamMcDonald2538)

The last strip-down and service was done by @GarthBrice https://github.com/GarthBrice in Opua in early 2023 -- before the NZ to Fiji Passage -- see issue #382 https://github.com/CanberraOceanRacingClub/namadgi3/issues/382 for history.

I suspect that this problem is a sticky or failed spring in a ratchet mechanism.

It deserves urgent attention. There is a risk that the clutch will not "lock" after tension has been put on the genoa sheet. The result is a winch handle spinning at high speed. I got whacked by the handle and it's not pleasant.

I'm happy to do the servicing on 29 Jan if @pjwain https://github.com/pjwain and @pcbaston https://github.com/pcbaston (the skippers before me) are happy to put up with the problem (i.e. Don't use that winch)

— Reply to this email directly, view it on GitHub https://github.com/CanberraOceanRacingClub/namadgi3/issues/757#issuecomment-1885674584, or unsubscribe https://github.com/notifications/unsubscribe-auth/A4W7HMBTEURKKEHEQXQ2XMLYN33BPAVCNFSM6AAAAABBAW3DFSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQOBVGY3TINJYGQ . You are receiving this because you were mentioned.Message ID: @.***>

GarthBrice commented 5 months ago

Paul, Yes there are spares onboard In the box with all the winch servicing gear.Chris knows how to strip the winch down and replace the pawl or spring. Kind Regards Garth  Sent from my iPhoneOn 11 Jan 2024, at 17:31

pcbaston commented 5 months ago

👍 Regards,

Paul Baston

On Fri, 12 Jan 2024 at 07:54, GarthBrice @.***> wrote:

PaulYes there are spares onboard In the box with all the winch servicing gear.Chris knows how to strip the winch down and replace the pawl or spring. Kind RegardsGarth Sent from my iPhoneOn 11 Jan 2024, at 17:31, Paul Baston @.***> wrote: I could look at it but I've never done that before. Chris green will be

with me. If it's a spring or pawl, are there spares held?

Paul Baston

On Thu, 11 Jan 2024, 07:31 Steven Ring, @.***> wrote:

Hi Sam @.*** https://github.com/SamMcDonald2538)

The last strip-down and service was done by @GarthBrice

https://github.com/GarthBrice in Opua in early 2023 -- before the NZ to

Fiji Passage -- see issue #382

https://github.com/CanberraOceanRacingClub/namadgi3/issues/382 for

history.

I suspect that this problem is a sticky or failed spring in a ratchet

mechanism.

It deserves urgent attention. There is a risk that the clutch will not

"lock" after tension has been put on the genoa sheet. The result is a winch

handle spinning at high speed. I got whacked by the handle and it's not

pleasant.

I'm happy to do the servicing on 29 Jan if @pjwain

https://github.com/pjwain and @pcbaston https://github.com/pcbaston

(the skippers before me) are happy to put up with the problem (i.e. Don't

use that winch)

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pcbaston commented 5 months ago

All, we didn't strip the winch as, quite frankly, we forgot to. It worked flawless for us for 4 days sailing, including fully loaded in 20 knots wind (where yacht was doing 8 knots upwind).

smr547 commented 4 months ago

Agreed, worked flawlessly for us too. Closing this issue noting that the winches will be serviced at the next working bee (see #382 )

smr547 commented 2 months ago

Unfortunately the winch failed to lock again last night. Will need to be investigated.

smr547 commented 2 months ago

Pauls cleaned and re-oiled by @Christopher-w-green at Coffs Harbour -- all working well.

GarthBrice commented 2 months ago

StevenI assume that it is the same winch that failed last time.Michelle said she had completely stripped the winch down, cleaned the pawls and reassembled the winch. Patrice and I did not repeat the process on that winch but we did service all the other winches. We did find a lot of corrosion in the other winches from salt water ingress which we removed with the brass brush. Perhaps that may be the problem?Kind RegardsGarth Sent from my iPadOn 2 May 2024, at 1:11 AM, Steven Ring @.***> wrote: Unfortunately the winch failed to lock again last night. Will need to be investigated.

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Christopher-w-green commented 2 months ago

Seems like only one pair of Paul's was cleaned. The other set of cogs and Paul's was clagged

On Thu, 2 May 2024, 4:05 pm GarthBrice, @.***> wrote:

StevenI assume that it is the same winch that failed last time.Michelle said she had completely stripped the winch down, cleaned the pawls and reassembled the winch. Patrice and I did not repeat the process on that winch but we did service all the other winches. We did find a lot of corrosion in the other winches from salt water ingress which we removed with the brass brush. Perhaps that may be the problem?Kind RegardsGarth Sent from my iPadOn 2 May 2024, at 1:11 AM, Steven Ring @.***> wrote: Unfortunately the winch failed to lock again last night. Will need to be investigated.

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pcbaston commented 2 months ago

Pawls, not Paul's Regards,

Paul Baston

On Thu, 2 May 2024 at 16:08, Christopher-w-green @.***> wrote:

Seems like only one pair of Paul's was cleaned. The other set of cogs and Paul's was clagged

On Thu, 2 May 2024, 4:05 pm GarthBrice, @.***> wrote:

StevenI assume that it is the same winch that failed last time.Michelle said she had completely stripped the winch down, cleaned the pawls and reassembled the winch. Patrice and I did not repeat the process on that winch but we did service all the other winches. We did find a lot of corrosion in the other winches from salt water ingress which we removed with the brass brush. Perhaps that may be the problem?Kind RegardsGarth Sent from my iPadOn 2 May 2024, at 1:11 AM, Steven Ring @.***> wrote: Unfortunately the winch failed to lock again last night. Will need to be investigated.

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Christopher-w-green commented 2 months ago

Thanks Pawl. Autocorrelation strikes again.

On Thu, 2 May 2024, 5:33 pm Paul Baston, @.***> wrote:

Pawls, not Paul's Regards,

Paul Baston

On Thu, 2 May 2024 at 16:08, Christopher-w-green @.***> wrote:

Seems like only one pair of Paul's was cleaned. The other set of cogs and Paul's was clagged

On Thu, 2 May 2024, 4:05 pm GarthBrice, @.***> wrote:

StevenI assume that it is the same winch that failed last time.Michelle said she had completely stripped the winch down, cleaned the pawls and reassembled the winch. Patrice and I did not repeat the process on that winch but we did service all the other winches. We did find a lot of corrosion in the other winches from salt water ingress which we removed with the brass brush. Perhaps that may be the problem?Kind RegardsGarth Sent from my iPadOn 2 May 2024, at 1:11 AM, Steven Ring @.***> wrote: Unfortunately the winch failed to lock again last night. Will need to be investigated.

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