Replace instruments on 545

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   I'm trying to replace wind/speed/depth instruments located on the coaming next to the helms on my 545. There are access panels in the aft cabins' ceiling that would probably provide adequate access if not for the electric motors of the primary winches. With the motors in place, I can't get my mitts in there. I've tried removing the motors, however can't reach one of the 4 bolts securing them.
Wondering if I'm missing something, would prefer not to cut access panels if I can avoid it.

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ccuthbe Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 26 November 2022 Location: Australia Status: Offline Points: 27	Post Options Post Reply Quote ccuthbe Report Post Thanks(0) Quote Reply Topic: Replace instruments on 545 Posted: 11 May 2025 at 04:50
	I'm trying to replace wind/speed/depth instruments located on the coaming next to the helms on my 545. There are access panels in the aft cabins' ceiling that would probably provide adequate access if not for the electric motors of the primary winches. With the motors in place, I can't get my mitts in there. I've tried removing the motors, however can't reach one of the 4 bolts securing them. Wondering if I'm missing something, would prefer not to cut access panels if I can avoid it.

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: 11 May 2025 at 08:44
	The problem with your one unreachable bolt is not the only one. Even with the bolt out you can not remove the motor and gearbox. In the Lewmar installation instructions “a MIN of 10 cm free space between “ in the building Hanse put all the equipment on the deck and then place the deck on the hull and the motor is unfortunately just on the place of the wall, so they cut out the wall but just enough to let the deck down in place. There no space to take the motor and gearbox out 😡🤬🤬🤬. To takeout you have to dismantle the whole winch from above!!!! To let the drive schaft come out the gearbox from above. IMO you don’t have to do this bloody job to replace the original Simrad 20IS instruments.Simply unscrew the 4 screws take out from above unplug the Simnet cables ,put the new instruments like B&G Triton2 in.you need a adapter cable Simnet to NMEA2000 Simrad do not following the IS 20 series anymore 🤬😡😤
	Wild and Wet Belgium 545e#268

Wayne's World Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 18 July 2012 Location: Cruising Status: Offline Points: 1434	Post Options Post Reply Quote Wayne's World Report Post Thanks(0) Quote Reply Posted: 11 May 2025 at 10:10
	Christian, As Wild suggests all the instruments are fixed from the outside. Generally there is a bezel which is removed by levering around the edges with a flat screwdriver. Once the bezel is off you will see the 4 corner screws which once removed will allow the instrument to be pull outwards and the connections removed from the back. The GPS type screens often have just a small cover at each corner which can be removed to access the mounting screws.
	Wayne W Cruising, currently in the Pacific until the end of 2026.

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: 11 May 2025 at 10:19
	If the old instruments are the original Simrad IS20.
	Wild and Wet Belgium 545e#268

ccuthbe Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 26 November 2022 Location: Australia Status: Offline Points: 27	Post Options Post Reply Quote ccuthbe Report Post Thanks(0) Quote Reply Posted: 11 May 2025 at 10:33
	Hi Wayne and Wild Thanks for your comments. I reached the same conclusion about trying to remove the electric motor drive part way through my attempt. I have Raymarine ST70 instruments, which I believe can only be removed from the backside, so it's looking like I'm a little snookered (and frustrated with Hanse). It's looking like an access hatch cut onto headliner is my least bad option which is far from ideal. Welcome any other ideas, removing winch from topside is looking challenging, hex volts are either loctited in or siezed with age. Should have been a 5 minute job....

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: 11 May 2025 at 11:01
	The only other comment is that you need to look at the instrument fit carefully, as you will likely need to do some carving work on the mounting platform. Even if its supposedly the same unit going into the same hole. The screws may be in a different place or you need to make the circular cut-out the new square shape, etc. Take your time with this. I spent 3 hours with a DREMEL tool and a vacuum getting a new windlass remote to fit in the old windlass remote hole. Sometimes its easy, sometimes its not. :-)
	Rick S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI

Wayne's World Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 18 July 2012 Location: Cruising Status: Offline Points: 1434	Post Options Post Reply Quote Wayne's World Report Post Thanks(0) Quote Reply Posted: 11 May 2025 at 20:26
	Christian, Use a impact driver to loosen the hex screws holding the winch bases down.
	Wayne W Cruising, currently in the Pacific until the end of 2026.

pdc78 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 27 May 2016 Location: UK Status: Offline Points: 142	Post Options Post Reply Quote pdc78 Report Post Thanks(0) Quote Reply Posted: 11 May 2025 at 21:54
	If the ST70s are to be written off, then why not attack them from above with a multi-tool rather than damage the winch and headlining. You should be able to enlarge the mounting holes for the B&G Triton mounts from above. Good luck, Paul
	H345 #269



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