Archive | 2013

Replacing Hydraulic Hoses? Simple Job, Right?

Hydraulic hoses tagged and marked for replacement.

Hydraulic hoses tagged and marked for replacement.

Frequently a vessel will decide it is time to change hydraulic hoses.  This is usually due to age, cracking, leaking or just overall feeling that a hydraulic hose might fail.  Some systems can have dozens of hydraulic hoses.  It might seem pretty straight forward to pull off a hose, get one made and replace it. 

We recently changed a large number of hoses on a 131’ Feadship hydraulic steering, crane and passerelle system.  The change out was fairly straight forward taking time to plug and mark everything and maintain a clean work area.  However, once the system is restarted, what do you do when it is not working properly? Now the simple “hydraulic hose changer” just got into a much deeper job. 

This was the case in our job.  Suddenly the passerelle would not operate.  Our hose changers are highly qualified hydraulics experts and within a few hours the problem with the passerelle was resolve.  As with many passerelle systems the problem was a loose sensor giving the system incorrect data.

Make sure you bring in qualified companies to do even the most basic work.   It will save you time, money and headaches in the long run.

Rebuilding Hydraulic Cylinders – Always Get a Bench Test

IMG_00000117 pump

30 HP Hydraulic Cylinder test pump.

The rebuild of your hydraulic cylinder just isn’t finished until you know for sure it has been bench tested.

Here at High Seas Hydraulics we have a 30 horsepower pump and no rebuild ever leaves our shop without getting it’s final test.  Your cylinder is bolted to the workbench and the piston fully extended. In this position our requirement is that it hold at 2,500 PSI for 10 straight minutes with no leaks, by-passing or any movement at all. Then we do it all over again in various retracted positions.

Cylinder undergoing bench test with piston partly extended.

Cylinder undergoing bench test with piston partly extended.

A normal working load for a marine hydraulic cylinder is around 200 PSI. If it passes our test at 2,500 PSI, we know it will pass any test you will give it while running off shore.

Quality control and a tough test are both equally important for us to make the commitment to you that the job is done right the first time.

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Opacmare Deck Crane Five Year ABS Testing

Opacmare Deck Crain

Opacmare Deck Crane in the yard for re-certification.

Depending on the Class of your vessel, your cranes require testing and certification each year or every five years.

It involves careful inspection and load testing by an experienced technician who has kept his training and certification up to the standards required to maintain your vessel’s Class certification.

This Opacmare crane on a 130’ yacht came in for ABS class servicing and testing.  The crane used Spectra Line instead of wire. This is not unusual except that due to UV deterioration, any crane that has Spectra Line should consider replacement every 12-18 months.

We replaced the Specta Line, performed load testing of the line and the overall system, re-certified for Class and had him on his way toward another season of safe yachting.

Our technicians have the right certifications to maintain your yacht with the most up to date equipment. Give us a call if you have a question about your crane or simply need new Spectra Line and a re-certification.

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