Thruster problem

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   as in the video in my Hanse 531 the propeller does not turn, the symptom is as if it was disengaged. if I move the propeller blades then it works for some time but it is much louder and makes an unusual sound ... when I move the propeller I first feel some resistance ... has anyone had a similar problem how to deal with it? thank you for your help ... can I unscrew and lift this white cover to see the gear? unfortunately I am in the middle of an expedition and I am standing on the water ... 
https://youtube.com/shorts/E607zy3bE98?si=GgH5qPSxkI7LxlO0

https://youtube.com/shorts/7z6fM1ngiiU?si=IlebCp522KlBBoK-

Edited by Zyps - 06 October 2024 at 17:07

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Zyps Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 21 December 2023 Location: Poland Status: Offline Points: 17	Post Options Post Reply Quote Zyps Report Post Thanks(0) Quote Reply Topic: Thruster problem Posted: 06 October 2024 at 15:19
	as in the video in my Hanse 531 the propeller does not turn, the symptom is as if it was disengaged. if I move the propeller blades then it works for some time but it is much louder and makes an unusual sound ... when I move the propeller I first feel some resistance ... has anyone had a similar problem how to deal with it? thank you for your help ... can I unscrew and lift this white cover to see the gear? unfortunately I am in the middle of an expedition and I am standing on the water ... https://youtube.com/shorts/E607zy3bE98?si=GgH5qPSxkI7LxlO0 https://youtube.com/shorts/7z6fM1ngiiU?si=IlebCp522KlBBoK- Edited by Zyps - 06 October 2024 at 17:07

Wild Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 18 March 2010 Location: Turkey-Greece Status: Offline Points: 937	Post Options Post Reply Quote Wild Report Post Thanks(0) Quote Reply Posted: 06 October 2024 at 19:56
	Did you check the carbon brushes of the electric engine? Check for carbon dust in the engine?
	Wild and Wet Belgium 545e#268

Zyps Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 21 December 2023 Location: Poland Status: Offline Points: 17	Post Options Post Reply Quote Zyps Report Post Thanks(0) Quote Reply Posted: 06 October 2024 at 21:21
	the engine is running so not the brushes... I think something that transfers the drive or some clutch

Wild Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 18 March 2010 Location: Turkey-Greece Status: Offline Points: 937	Post Options Post Reply Quote Wild Report Post Thanks(0) Quote Reply Posted: 07 October 2024 at 07:37
	If the engine running normal the problem must by in the gearbox ⚙️our de connection between engine and gearbox. Unfortunately by most of the bowtrusters (I don’t know for yours Max ) you only can disconnect the gearbox for inspection when out of the water Edited by Wild - 07 October 2024 at 07:39
	Wild and Wet Belgium 545e#268

Black Diamond Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 24 October 2015 Location: Newport, RI, US Status: Offline Points: 1275	Post Options Post Reply Quote Black Diamond Report Post Thanks(0) Quote Reply Posted: 07 October 2024 at 20:45
	From what I have seen with our 575 thruster, QUICK (unlike simple things like snowblowers) does not have a "sacrificial" component to take the abuse once something gets into the prop. The drive leg then gets abused and needs to be replaced. While the motor can be replaced with the boat in the water, the drive leg cannot. I have no idea what your problem is, but my experience with QUICK is that its easy to grind up the drive leg.
	Rick S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI

Wild Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 18 March 2010 Location: Turkey-Greece Status: Offline Points: 937	Post Options Post Reply Quote Wild Report Post Thanks(0) Quote Reply Posted: 08 October 2024 at 07:19
	On our RMG (now Lewmar) there’s a 2 sacrificial shearpins. Still than a broken gearbox (the RMG gearbox is a Lewmar products)under warranty RMG send us new one and change the material of the shearpin. A few years later a mooringline in the prop ,gearbox again broken while bought shearpins (propeller- and engine-gearbox connection) not broken and intact Even with a sacrificial component the Lewmar gearboxes are to weak our the shearpins to strong. I do not know MAX truster have a shearpin to protect the drive leg?
	Wild and Wet Belgium 545e#268

Zyps Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 21 December 2023 Location: Poland Status: Offline Points: 17	Post Options Post Reply Quote Zyps Report Post Thanks(0) Quote Reply Posted: 15 October 2024 at 21:17
	unfortunately after disassembling the thruster I probably diagnosed the problem. I was hoping it was the plastic clutch between the engine and the shaft but when I held the shaft on top and turned the propeller blades I could feel the teeth skipping. I had to order a composite leg. Now I'm waiting for the shipment. What's more interesting is that in my Max Power Vip 150 24v they changed its design over the years and I also have to replace the 3-blade propeller blades with 5-blade ones... I'm just curious if it will fit in the tunnel because my propellers have a diameter of 180mm and the new ones are 185mm... while looking for the cause I found a lot of interesting and useful documentation but I can't attach them to the forum on my tablet

Wild Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 18 March 2010 Location: Turkey-Greece Status: Offline Points: 937	Post Options Post Reply Quote Wild Report Post Thanks(0) Quote Reply Posted: 19 October 2024 at 09:14
	Our Lewmar leg is still in brass what I prefer against the new composite ones.I hope for you the 185mm ( who is the more common diameter for trusters) will fit in the tunnel. I changed the original tunneltube (185) after some damage by a new stronger 185mm one and that’s easy to do.
	Wild and Wet Belgium 545e#268



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