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[LW11] Pump position
10-04-19, 01:14 PM (This post was last modified: 10-08-19 03:07 AM by Louise - Raymarine - Moderator.)
Post: #1
[LW11] Pump position
Hey Guys, How are you?

I work on Marine Express from Brazil and we represent Raymarine here, all the time that we need determine a autopilot to a new client and I always have doubts if what I indicated was right, and once more time I need your help. I attached the steering system from a new shipyard but I don't know exactly where I need put the pump, Can you help me? I put number in red on the hoses to make easy the identify where is the best place. Should I put between 2 and 4?

Thanks in advance.

Felipe Muniz


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10-08-19, 08:43 AM
Post: #2
RE: [LW11] Pump position
Hi Felipe,
thank you for your message,

The system in the attached diagram indicates an engine driven form of power assisted steering where the helm pumps(steering wheels) are used to direct the high pressure oil to the steering rams.

In this system, you would normally connect the autopilot pump between pipes 2 and 4, as close to the steering rams as practical and the reservoir line from the pump should be connected to the low pressure return line to the oil reservoir.

You should also check that there are check valves in the helm pumps too, otherwise the autopilot pump will pump oil into the helm pumps instead of the steering rams.

Thanks
Derek
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