Date
1 - 20 of 31
Bow truster problem
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After a 3 weeks on hard and lot of projects done we are back in the water. All looked well until I started manoeuvre to get in to my berth in marina. Bow truster at first worked and then suddenly I heard fast spinning like when I had rope cut the propeller from bow truster. Later I checked with camera and I have found that propeller Is there and all looks fine. But it does not turn.
The electrical motor is spinning like there is no load so I am thinking that there might be a problem in connection of motor to mechanical part of bow truster. I do not know. Lines are little loose but I can not remember how it was before I removed and serviced bow truster. I am in the water now and thinking what to do. Should I use Amel tool and remove bow truster in water or is there anything else I can check before doing this. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Alexandre Uster von Baar
Good morning Slavo, The same thing happened to me. The pitch suddenly became much higher (obviously no load). In my case, the gear were worn down. It wasn’t obvious looking at them, here are some pictures: http://supermaramu2000.com/bow_thruster_spin.html My hull number was closed to yours (#289). When you order from Amel, you will likely have to buy the complete unit (with the tufnoll shaft) It is Amel part #1110 “Mecanism pied de propulsory SM” in 2016 it was 585 Euro http://supermaramu2000.com/spare_parts_bow_thruster.html I am sure you have seen my illustration to service the bow thruster in the water. http://supermaramu2000.com/bow_thruster_overhaul.html Good luck to you. Sincerely, Alexandre (Formerly SM2K #289 NIKIMAT - lost 2017 during Irma)
On Wednesday, April 27, 2022, 11:54:51 AM AST, Slavko Despotovic <slavko@...> wrote:
After a 3 weeks on hard and lot of projects done we are back in the water. All looked well until I started manoeuvre to get in to my berth in marina. Bow truster at first worked and then suddenly I heard fast spinning like when I had rope cut the propeller from bow truster. Later I checked with camera and I have found that propeller Is there and all looks fine. But it does not turn. The electrical motor is spinning like there is no load so I am thinking that there might be a problem in connection of motor to mechanical part of bow truster. I do not know. Lines are little loose but I can not remember how it was before I removed and serviced bow truster. I am in the water now and thinking what to do. Should I use Amel tool and remove bow truster in water or is there anything else I can check before doing this. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Agree. It is either the gear is worn, or someone has not performed the correct service when replacing the gear. The round gear cover that Amel sends with the kit must be used with the new kit. If you use the old cover with the replacement gear kit, the gears will not align. The only possibilities other than the worn or misaligned gears are: The 6 nylon screws have sheared, or the stainless steel pin for the Hub has cut a slot all the way around the hub. Best, CW Bill Rouse Amel Owners Yacht School +1 832-380-4970 | brouse@... 720 Winnie, Galveston Island, Texas 77550 www.AmelOwnersYachtSchool.com Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html On Wed, Apr 27, 2022, 11:14 Alexandre Uster von Baar via groups.io <uster=rocketmail.com@groups.io> wrote:
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Alexandre Uster von Baar
Something I forgot: When you receive the new kit from Amel, the key will not fit, as the groove has not been made deep enough on the shaft. I mentionned that to Amel in 2017 - since friends ordered that same kit years after and had the same issue - I was disappointed Amel didn’t correct it when I first mentioned it and probably still not have. So you will need a machine shop to make the hole on the shaft a bit deeper for the key (you could make the key thinner, but this is not the proper way). Anyone having this kit as a spare should do the same, otherwise risk to not being able to fit it as they won’t find a machine shop if they are in remote area.
On Wednesday, April 27, 2022, 12:14:12 PM AST, Alexandre Uster von Baar via groups.io <uster@...> wrote:
Good morning Slavo, The same thing happened to me. The pitch suddenly became much higher (obviously no load). In my case, the gear were worn down. It wasn’t obvious looking at them, here are some pictures: http://supermaramu2000.com/bow_thruster_spin.html My hull number was closed to yours (#289). When you order from Amel, you will likely have to buy the complete unit (with the tufnoll shaft) It is Amel part #1110 “Mecanism pied de propulsory SM” in 2016 it was 585 Euro http://supermaramu2000.com/spare_parts_bow_thruster.html I am sure you have seen my illustration to service the bow thruster in the water. http://supermaramu2000.com/bow_thruster_overhaul.html Good luck to you. Sincerely, Alexandre (Formerly SM2K #289 NIKIMAT - lost 2017 during Irma)
On Wednesday, April 27, 2022, 11:54:51 AM AST, Slavko Despotovic <slavko@...> wrote:
After a 3 weeks on hard and lot of projects done we are back in the water. All looked well until I started manoeuvre to get in to my berth in marina. Bow truster at first worked and then suddenly I heard fast spinning like when I had rope cut the propeller from bow truster. Later I checked with camera and I have found that propeller Is there and all looks fine. But it does not turn. The electrical motor is spinning like there is no load so I am thinking that there might be a problem in connection of motor to mechanical part of bow truster. I do not know. Lines are little loose but I can not remember how it was before I removed and serviced bow truster. I am in the water now and thinking what to do. Should I use Amel tool and remove bow truster in water or is there anything else I can check before doing this. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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That might be a problem as I made key thinner. I have replaced all parts inside (used a kit from Amel) and had a problem with key not fitting in. This is answer to situation that at first it worked and then not. That happened after few seconds. Probably key broke :((.
One more question. There is no way that there is problem between electrical motor and mechanical part of truster? To answer to Bill. I did all the maintenance. So I will have to do it again. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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The round cover delivered from Amel didi not fit so I used the old one. Anyway I will have to do all over again. I might learn some more :)).
-- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Alexandre Uster von Baar
back then, I did not had issue between the electric motor and the shaft, the spins shown on the picture, look good.
On Wednesday, April 27, 2022, 01:02:34 PM AST, Slavko Despotovic <slavko@...> wrote:
That might be a problem as I made key thinner. I have replaced all parts inside (used a kit from Amel) and had a problem with key not fitting in. This is answer to situation that at first it worked and then not. That happened after few seconds. Probably key broke :((. One more question. There is no way that there is problem between electrical motor and mechanical part of truster? To answer to Bill. I did all the maintenance. So I will have to do it again. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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The problem is you used the old cover. It will absolutely give you this problem. The new cover would have held the axle (prop shaft) in the correct alignment. The old cover is a different thickness at the shaft which allowed the shaft to move laterally and allow the two gears to misalign. You will likely need a complete new kit. According to one of my clients, instructions from Amel are included with the kit about this issue. Best, CW Bill Rouse Amel Owners Yacht School +1 832-380-4970 | brouse@... 720 Winnie, Galveston Island, Texas 77550 www.AmelOwnersYachtSchool.com Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html On Wed, Apr 27, 2022, 12:07 Slavko Despotovic <slavko@...> wrote: The round cover delivered from Amel didi not fit so I used the old one. Anyway I will have to do all over again. I might learn some more :)). |
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There were no instructions from Amel. Simply the cover is not usable. Will call Amel tomorrow and discus the problem.
Thank you. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Hello Slavko,
I suffered from the same problem three years ago . After may be 10 times of use after replacing the gears with the Amel kit, the gears were already worn out, This because the mechanic in Spain used the old cover or end cap and not the new one that came with the kit. This new one dis not fit. This was a problem in the first place caused by Amel. The mechanic who used the old one in stead had tho be more vigilant in checking the amount of play because the old cover did not go inside as much as the new one. That results in too much of play on the gears. If the new end cap does not fit and you want to use the old one, the only way to do this correctly is by using shims to restrict the amount of play within the correct parameters. Willem Kroes SY Kavanga SM #351 now in Licata on Sicily |
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Willem, Agree! Best, CW Bill Rouse Amel Owners Yacht School +1 832-380-4970 | brouse@... 720 Winnie, Galveston Island, Texas 77550 www.AmelOwnersYachtSchool.com Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html On Thu, Apr 28, 2022, 09:10 Willem Kroes <kavanga@...> wrote: Hello Slavko, |
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The only way to find out is to do all again. My truster did not work 5 seconds after change using Amel kit. I will have a chance to use Amel bow truster tool for the first time.
Thank you all for your help. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Dear Slavko |
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Ulrich Michael Dangelmeyer
Until now: no pic ,sorry Am 29.04.2022 um 11:01 schrieb Jeppe Jonsson via groups.io <jepjons@...>:
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 Last photo upload try /Jeppe, Rhumb Runner, SM464 |
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Update on the problem. Used the kit for bow thruster removal in the water. Worked fine. Opened the lower part and found that there was almost no damage. Replaced the plastic cover, did a little drilling to fit with holes , put all together and it works fine. I got a new kit from Amel with good discount and is now spare for next maintenance.
Thank you all for valuable information an help. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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I am back with bow thruster problem. Yesterday, when back from 10 days sailing bow thruster worked on one side and just spining on the other side. I replced all parts with new ones that I got few weeks ago. Put all together and again just spinig on both sides. I have checked all writen material avaliable and found out that I have done it as it should :(((. Probably not. I am out of options here. Any advise will we appreciated.
-- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Sorry you're having problems, Slavko. If the motor is spinning and the prop is not, it has to be in the drive train. Vertical shaft, 90° bevel gear, prop shaft, pin, hub, or nylon bolts. Have you taken it all apart? See Alex's description: https://drive.google.com/file/d/1yfpT9vy9PJmbA2_JI2DvL96RLTdUM81x/view?usp=drive_web -- Kent & Iris KRISTY
SM243 |
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I need to apologise for stupid thing that have happened. After assembling yesterday afternoon I tested and it happened what I have written this morning. Today I did all again, alone, and when I got bow thruster on board I found that propeller is missing. :((((. How it happened I do not know. Maybe was mooring as yesterday we had some strong winds in the Marina. I do not now. So, I replaced propeller put all together again and it works :)). Sorry for my post this morning. Good thing is that now I can do all the maintenance on bow thruster in two hours an I can do it all alone even when doing all work with boat in water.
Please take my apologies. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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Sorry to come back with this issue. Today I lost propeller again when I was going stern to my berth in marina. All was ok when I was using bow truster to move boat to port side. When I tried to move bow of the boat to starboard I lost the bow thruster propeller agin. I am confused as this is the second time it happened. Can someone advise what I might be doing wrong?? This first time the plastic where the propeller is put in and then tied with plastic screws did not have any of leftovers of plastic screws. It is the same this time. I know I have tied it very solid.
Any ideas as this is getting very expensive exercise for me. Thank you. -- Slavko SM 2000 #279 Bonne Anse in Croatia |
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