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+--- Forum: Autopilots (/forumdisplay.php?fid=23)
+--- Thread: [JB] [JB] Type II Hydraulic Hose Specs Question (/showthread.php?tid=11297)
[JB] Type II Hydraulic Hose Specs Question - panema - 05-15-20 11:06 AM
Hello Raymarine Folks,
I have just finished mounting all the different parts for my Type II Hydraulic Autopilot. I am very excited.
In order to meet the requirements for the installation in the manual, I had to place the hydraulic pump and the reservoir further away from each other than I would have liked, and also with a tighter turn than I would have liked. This has resulted in a small kink in the hose coming out of the pump heading to the reservoir.
In looking it over I think I will be best served in the long term by replacing this hose to make sure the Hydraulic Fluid supply is running clear and without any kink. I am looking now to have a replacement hose made, one that will (1) exit the pump with a fitting / hook up that has a 90 degree turn to fix the kink and (2) is slightly longer - about 1 ft - than the original to accommodate a needed turn to get to the reservoir.
I checked the manual, but could not find the following info:
+ What is the required rated pressure for the hydraulic lines? I want to make sure I meet or exceed the required PSI rating.
+ Is there a part name or specification for the fittings / hook ups on either end of the hose (Pump >> Reservoir and vice versa) so that when I have the hose made I can specify the right hook ups on the end of the hoses to interface with the pump and the reservoir respectively.
Thank you again for the wonderful and timely support - this forum has been very helpful.
// Phil
RE: [JB] Type II Hydraulic Hose Specs Question - Jules - Raymarine - Moderator - 05-20-20 12:05 AM
Hello Phil,
You certainly don't want any kinks in a hydraulic hose as that's certainly the beginning of a failure before the system even starts operating.
Specifications on hydraulic drives can be found here Raymarine Drive Unit Selection
The Hydraulic Pump Installation Manual mentions 1/4" BSP bonded rubber/metal seals and if required 1/4" BSP to 1/4" NPT adapters are in the kit. As the vessel steering relies so heavily on a hydraulics system it is best that a hydraulic industry professional be consulted on correctly fitting components.
Happy boating and kind regards
Jules