Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-08-2018, 01:57   #1
Registered User

Join Date: Mar 2011
Posts: 2
Question bleed simrad rpu160

Hi all,
I am in the process of fitting a simrad NAC 3 auto pilot computer and RPU 160 reversing pump to a hydrive admiral twin helm steering system.
To bleed the pump I need to get the port and starboard remote switch controls working but I can't do this until I commission the autopilot. One of the steps to do this is to test the rudder (the rudder feed back has been calibrated).
When I start the rudder test the pump runs but the test fails and goes back to rudder test display.
Does anyone know any way to bleed the pump to pass the rudder test or bypass the calibration of the autopilot?

Cheers

Terry on TVtinney
terry welsh is offline   Reply With Quote
Old 07-08-2018, 06:13   #2
Registered User
 
svHyLyte's Avatar

Join Date: Mar 2006
Location: Tampa Bay area, USA
Boat: Beneteau First 42
Posts: 3,843
Images: 25
Re: bleed simrad rpu160

Quote:
Originally Posted by terry welsh View Post
Hi all,
I am in the process of fitting a simrad NAC 3 auto pilot computer and RPU 160 reversing pump to a hydrive admiral twin helm steering system.
To bleed the pump I need to get the port and starboard remote switch controls working but I can't do this until I commission the autopilot. One of the steps to do this is to test the rudder (the rudder feed back has been calibrated).
When I start the rudder test the pump runs but the test fails and goes back to rudder test display.
Does anyone know any way to bleed the pump to pass the rudder test or bypass the calibration of the autopilot?

Cheers

Terry on TVtinney
Terry--

I learned the following from a technician that helped us with the drive on our Simrad AP that has been restored to health following a rebuild:

The pumps are self bleeding through a one-way valve (similar to the valve in an anti-siphon loop) on the top of the hydraulic fluid reservoir. Check the reservoir to ensure that you have adequate fluid (a piece of a bamboo skewer makes a good "dip-stick" ) then seal the reservoir and, with the AP powered up, manually turn the wheel from lock-to-lock quite a few times. Recheck the fluid level and add oil as necessary after which you should be able to use the direction buttons on the control head to move the wheel back and forth a quarter turn or so each way during the course of which you may hear a moaning sound caused by escaping air through the bleed valve. Recheck the fluid level and add fluid as necessary and repeat until the moaning stops after which you should be good to go.

Good luck!
__________________
"It is not so much for its beauty that the Sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
svHyLyte is offline   Reply With Quote
Old 09-08-2018, 01:36   #3
Registered User

Join Date: Mar 2011
Posts: 2
Re: bleed simrad rpu160

Thanks for that Hylyte.

I persevered with the pump running on test mode and finally worked out that there was no oil going into the pump even after I had bled the system back to the pump.
I connected the inlet hole on the pump to 2m of clear plastic hose and blew into the end of the hose with a hand pump. This seemed to work but I still need to bleed the whole steering system.
Cheers
Terry on TVtinney
terry welsh is offline   Reply With Quote
Reply

Tags
simrad

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric Diesel bleed pump advice... Christian Van H Engines and Propulsion Systems 20 28-05-2019 15:28
RPU160 autopilot drive motor question CaptJohnEasley Marine Electronics 5 19-11-2016 10:47
Injector Pump Won't Bleed hummingway Engines and Propulsion Systems 53 25-05-2011 20:07
Drain / Bleed Coolant - Yanmar 3GM30F Capt.Don Engines and Propulsion Systems 8 16-05-2011 07:07
Yanmar - Cannot Bleed, Will Not Run Tspringer Engines and Propulsion Systems 15 27-10-2009 12:37



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:04.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.