Een smullertje voor de echte techneuten!
Wil graag mn NECO autopilot ombouwen: ik wil de electromotor behouden, maar de verouderde regeling vervangen door een moderne stuur automaat met GPS en AIS.
Bijgesloten foto's van de electromotor, het systeem en de handleiding. Hoorde van een electroservice dat dit een "zwart wit" sutomaat is en dat eigenlijk veel erop aan gesloten kan worden.
De Neco motor ziet er heel heel degelijk uit. Als deze nog goed werkt kan die zo blijven. In principe kun je ieder merk inbouw autopilot hiervoor gebruiken mits die het vermogen van de motor aan kan.
Dit is volgens mij een zwart wit piloot.
Ik zou kijken naar een B&G system nac2 of een 3 vervolgens uitrusten met Triton.
Is niet goedkoop maar heb je wel wat degelijks.
Daarnaast heb ik op internet dit nog gevonden over een Raytheon: hiervan staan ook enkele schema's bijgesloten.
Ik wil graag een simpele makkelijke autopilot met GPS en AIS, die ik kan bedienen met mn ipad waar navionics op staat.
Denk een leuke uitdaging
I have the control head from NECO. Mine did work but needed to be set up with adjustments made in the motor. Send a PM to me if you are interested. (Witte diagram)
Inside of Motor post modification: -
Regarding the motor. It is old and while Hudson Marine tested it, I do not expect it to last any significant time. I would not trust it on a long voyage. Other forums have commented on reliability and failure of the motor under prolonged use after conversation. If changing for blue water use, long distance sailing, I would change out the Neco motor, in my case for a Jaffa rotary unit, as that would best suit my steering arrangement. However, for pottering about in a coastal environment, reliability is not such a big issue.
Apparently some of the electronic components in the Neco systems suffer from age related chemical breakdown and are irreplaceable with modern technology. It was mentioned on this forum but I can't find the reference.
This wiring diagram for an Raymarine ACU is from the Nauticat Owners FB page - so you can see what would be involved. (Met bruine achter grond)
I'd go to Greenham R or Hudson if you're nervous about doing the work yourself.
I have had this done this with new Raymarine ACU400 a couple of years ago. I sent the motor to the Hudson Marine and they basically removed the internals at the top of the Neco Motor and binned them. They then attached some cables and labeled them for me. I just connected the cables directly into the ACU 400, set it up and off we went. Hudson Marine also tested the motor first to make sure it was working okay. All the gubbins at the top of the Neco motor are not needed for the Raymarine.
Basically there are now 3 cables, paired red and black per cable, coming out the motor: Clutch, Power, Motor and the Raymarine manual tells you where to connect each to. The ACU 400 then drives the motor part and does not require any of the stuff that was on top of the motor.
Cost was not much, a couple of hours work by Hudson as it is just a test and a 3 wire tails added.
My advice after using a NECO motor with Raymarine ACU400, is to buy a Jeffa rotary drive. The NECO motors at the age they are, are prone to failure. You go through all this hassle of getting them to work, then they fail to work a year or two in. The Jeffa is superior in every way. Cost about £1200 for the version suitable for a 41’ yacht. Don’t waste your time converting the Neco motor. I did, wish I hadn’t, despite earlier success. Mine now fails regularly and I am sure it is to do with temperature, it just stops responding to signals from the ACU400. Don’t waste your time on something that will fail, commit to a new motor.
Has anyone got experience of using the Raymarine Type 2 Rotary Drive, comments on reliability, ease of installation, custom sprocket design? Any recommendations for other rotary drives to work with a Raymarine Evolution ACU400 Autohelm.
Raymarine Type 2 Rotary Drive 12v (M81136)
Currently I have an old Neco motor converted to run from the ACU400 but last weekend it stopped working. The clutch still works but the motor will not turn the wheel to correct the direction, it just stays in the same position. If anyone has an idea or thoughts on what could be wrong, ideas welcome. Upto last weekend it was working fine. I checked the fuse inside the motor, okay after the breaker tripped. Breaker resets and stays on. ACU400 fuses all okay.
I have not looked at Linear drives as the space is narrow at the stern, may be able to fit one, but currently would prefer to connect a rotary drive to the existing sprocket on the torque tube.
Do you have the space to mount a Type 1 drive fore and aft?
The Type 1s are too light I understand. The stern pinches up and forward of the rudder post, port side I have a draglink from the rudder stock to a gearbox with another tiller arm . On the starboard side I have a set of drawers and immediatly infront the aft cabin seat between the bunks with foot locker below. The way the hull curves up, the rudder stock sits in a deep V and any linear drive would be mounted at an angle pushing down onto the tiller arm. I only have 28 degree of rudder movement and if a linear drive could fit it would be very tight at some odd angle. Jeffa make motors but pricy however, interestingly, they make motors that bolt onto the side of bevel bevel boxes, of which I have a few. Easiest solution, if I cant repair the Neco motor, would be a Type 2 Rotary Drive with a custom sprocket to match my chain.
Yes, that's my conclusion, if a linear system could fit, it would be by trial and error as opposed to detailed measuring as the spaces is very tight. Likely a dog leg tiller arm or some offset could be constructed and drawers removed but that would start getting into big hassle and expense.
The Raymarine Type 2 Rotary would likely fit with a custom sprocket but I am not sure of reliability of these devices and have found little information on them beyond Raymarine technical information. I could commit to a Jeffa motor such as the Jefa 200 Nm sprocket autopilot drive unit if the Raymarine was not reliable. The assumption being, spend the cash once and have a reliable system. The Jeffa is about £1200, The Type 2 about £1400.
I guess what I am looking for is advice on what is more reliable, Jeffa or Raymarine, if I am going to commit to a new rotary drive instead of trying to get the Neco +40 year old tech working.
Jefa kit is top notch, they make the Garmin linear drives. I don't hear any complaints about Raymarine rotary drives, but if it was me, i'd fit the Jefa unit.
I like how Jeffa explains the load sharing across the the planetary gears and more efficient working. The Raymarine looks like a motor driving a gear that connects to the drive shaft gear, because of the offset look, but its not clear. Thanks for your advice.