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Old 24-06-2020, 17:03   #16
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Re: Raymarine Type 2 Linear Driver parts/service

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No, I am not talking about Anderson power poles. I am talking about twistlock connectors used for home and jobsite portable generators. Up here everyone has a standby generator due to frequent and long power outages.
OK. The ones used on AC shore power cords that cause all the boat fires.
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Old 24-06-2020, 17:06   #17
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Re: Raymarine Type 2 Linear Driver parts/service

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Question: What's up with 'metal gears' for the RM linear drives. I have heard (on a Delos video, I think) that it's the plastic gears that often fail. Did some machinest decide to make some metal gears for these things? I would definitely be interested in those!

The gear that has the cogged belt on it was originally made of plastic. Now the gear portion in made of bronze. That gear turns four spurr gears that are bronze and the original plastic gears would wear out about every 10,000 miles.
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Old 24-06-2020, 17:08   #18
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Re: Raymarine Type 2 Linear Driver parts/service

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OK. The ones used on AC shore power cords that cause all the boat fires.
No, those are three pin and you need a four pin connector. Two for the motor and two for the clutch.
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Old 24-06-2020, 17:10   #19
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Re: Raymarine Type 2 Linear Driver parts/service

I 'believe' any of the Raymarine branded drives have bronze gears, and it's the older Raytheon that were plastic. I had both and can confirm that at least in the ones I had that was correct.

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Old 24-06-2020, 17:15   #20
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Re: Raymarine Type 2 Linear Driver parts/service

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No, those are three pin and you need a four pin connector. Two for the motor and two for the clutch.
33% more chance of a fire then.

You could use a 3 terminal terminal block. Use a common ground for the motor and clutch. Just saying.
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Old 24-06-2020, 18:28   #21
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Re: Raymarine Type 2 Linear Driver parts/service

Terminal block....not bus bar. I always confuse these two.

Thanks for all the explanations! I've been battling my linear drive for a bit and just bought a used one as a backup. My primary keeps getting stuck "on" and won't go into standby, which is a little nerve wracking when sailing towards a breakwater. I was thinking it might be the gears but the unit works fine when I took it apart and hooked the power to it separately. I have now noticed the rudder reference is slipping on the post. That's when I also read that a tiller arm to the AP is a better setup, which I like a lot since steering cables can break. I will continue to slowly figure this out, but this thread is more fun than pondering these things inside the cockpit locker
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Old 24-06-2020, 18:41   #22
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Re: Raymarine Type 2 Linear Driver parts/service

So if you were going to mount a switch in the cockpit for a AP disengage, al la red button, would you just need to interrupt one of the clutch wires?
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Old 24-06-2020, 18:41   #23
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Re: Raymarine Type 2 Linear Driver parts/service

If the linear drive is hooked up to the aluminum radial drive the AP works without the cables that attach to the radial drive. The cables run to the steering wheel thru pulleys. If the cable breaks the wheel won't work but the AP will. You should replace the cables if any of the cable strands are broken.

You can remove the rudder indicator and program the AP to work without it to see if that's the issue.
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Old 24-06-2020, 18:47   #24
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Re: Raymarine Type 2 Linear Driver parts/service

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If the linear drive is hooked up to the aluminum radial drive the AP works without the cables that attach to the radial drive. The cables run to the steering wheel thru pulleys. If the cable breaks the wheel won't work but the AP will. You should replace the cables if any of the cable strands are broken.

You can remove the rudder indicator and program the AP to work without it to see if that's the issue.

Don’t most manufacturers of the radials say NOT to do this?

I know Edson told me NO on my unit, pulled the rudder and had a key machined in for a arm.

Putting a small SS pin in a Al radial to drive all of it by a linear drive, doesn’t seem like a good long term solution.

Only extra thing I’m using the radial for is a little ball and rod connection to the rudder position sensor.
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Old 24-06-2020, 18:52   #25
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Re: Raymarine Type 2 Linear Driver parts/service

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Donít most manufacturers of the radials say NOT to do this?

I know Edson told me NO on my unit, pulled the rudder and had a key machined in for a arm.
Edson says it wasn't designed for that. They stop short of saying it's not strong enough. It's not ideal but if it's been like that for a long time it should be fine. It's very common to see it done that way but a separate tiller arm is best.
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Old 24-06-2020, 19:00   #26
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Re: Raymarine Type 2 Linear Driver parts/service

This is a good source of info from Edson: https://edsonmarine.com/sailboat-data-sheets/

I didn't see the Freedom 38 on list though.
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Old 24-06-2020, 19:01   #27
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Re: Raymarine Type 2 Linear Driver parts/service

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33% more chance of a fire then.

You could use a 3 terminal terminal block. Use a common ground for the motor and clutch. Just saying.
Not much chance of a fire. The motor draws up to 40 amps according to the manual but that is only the starting or stalled load. Average draw is 6 amps so the generator connector is overkill. The shore power cables that catch fire are on boats that draw full load for long periods of time, like liveaboards with electric heat. I've melted a couple of those myself which is why I now have a smartplug.

You cannot use a three terminal connector with a common ground. The drive reverses polarity to reverse direction so there is no positive or negative on the motor.
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Old 24-06-2020, 19:10   #28
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Re: Raymarine Type 2 Linear Driver parts/service

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You cannot use a three terminal connector with a common ground. The drive reverses polarity to reverse direction so there is no positive or negative on the motor.

Yes, you are correct. I was wrong. A 4 terminal terminal block would be needed.
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Old 25-06-2020, 13:13   #29
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Re: Raymarine Type 2 Linear Driver parts/service

I have a type 1 that works fine for $ 300, i am retiring from marine work, and have numerous auto pilot part's. My email:dptiffany@hotmail.com
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