Foriegn Particles in Hydraulic sysem

Following the manufacturers schedule for inspection and maintenace religiously.

Replacing the hydraulic fluid with new spec compliant fluid per manufacturers recommendations.

Yes, you are very true, that the rod wiper was completely worn out and that it was not replaced in time.

Hello ozzb,

How are you ozz my friend? There idea to replace or (retro-fit) these filters is a good one for sure!

Perhaps the Magnetic Separators should also be fitted in line to do a similar job?

Of course all hoses should be renewed also!

Doing just fine and yourself.

Install 5-10 Micron filters on the return to Tank port with ALARMS that indicate when they are near bypass condition. Use Electric Feedback ALARMS that will signal when filters are approaching Bypass conditions andwill finally shut the engine off if no one pays attention. That way you will know about component failures before they wipe out the entire system.

Not cheap but a lot cheaper than what you just went through. The Old "Pay Me Now or Pay Me Later" syndrome always comes into effect.

When Bypass Pressure reaches the limits you can look in a torn apart Filter Element to see where the debris is coming from so you know what components to check.

On top of that, the good filtration will stop a lot of the wear you presently see and all components will last ten times longer. Been there and done that on NUMEROUS Industrial systems and even have one company specifying these circuits plus Continual Off Line Filter Loops with 5 Micron filters running 24/7. The Off Line Filters are also used to Fill or Re-Fill the Tank so no contaminated oil is introduced at any time.

Again, NOT CHEAP but one big failure will pay for the up front cost, probably just due to the downtime of lost production.

Thanks, how about installing a filter in between main pumps and control valve. as we have one by pass filter already installed by OEM. I have only doubt and is confused that if i use filter in between pumps and control valvae, then what shoud be its micron.

can you please help me out.

Hello Milo,

I think perhaps this Magnetic Separator and, the filters should be fitted in line.

Though hopefully not, there could be metal which is 'non-magnetic' so will not be picked up by the Magnetic Separators?

GA

to you for the mention though my friend!

Thanks, I was puzzled by the Off topic vote myself. We put these in line on a bar draw bench line and they paid for themselves in one week by preventing die breakage from entrained scale and blaster shot. I'm certain they will be a major part of preventing a recurrence if this company doesn;t change their maintenance systems and execution.

All the best, BB.

milo

Hi there, If water gets into the system the norm is to change the entire volume X3 , Oil is cheap ! Then put filters that seperate oils. I usually only change X2.

With that amount of metal you should be looking for a magnet in your Oil tank. Maybe put a few magnets on the bottom yourself. Attach magnets to a small chain and the oil filler cap. So you can pull them out and check them. Check the screen on the suction after you drop the first volume of oil. You should also check pump pressure. Pump could be chewing itself apart now that it has pushed metal.

Good luck.

Woody

a very through flushing of your system for contaminates is mandatory; replace all filters, use fresh fluid ,should do the trick.

if you do not change all filters , failure within a very short time for the same problem, guaranteed.

hope this helps

good luck

ahuha

You will need to flush the entire hydraulic circuit. The particles that do the real damage to pumps, etc cannot be seen by the naked eye, ie. 40uM resolution.

You need to remove particles 1 to 10uM in size which will do all the damage typically.

Pall have flushing rigs and/or procedures that will assist you with a positive outcome.

If you only visually clean up within a very short time you will begin to see a chain reaciton of wear on principle components and very soon further failures and expensive down time.

Talk to your local Pall Corporation - Industrial Hydraulics Sales Engineer.

We cover the entire world with a global local network of highly specialised people.

My contact is rod_donegan@ap.pall.com

I will get someone to contact you if you like if you email me with your

Name, email and local address and country. Phone number would also be most helpful for our people to make immediate contact with you.

There are particle counters that you install on the system that can determine when components begin to break down, so you can inspect/replace them before complete failure. I don't know how expensive they are.

https://www.azom.com/news.asp?NewsID=16522

https://www.hach.com/hc/search.product.details.invoker/PackagingCode=2087008-02/NewLinkLabel=HIAC+PODS%2C+Portable+Oil+Diagnostic+System/SESSIONID%7CAzNPRE0zT0RRNU16QTRKbWQxWlhOMFRrTlBVRlF4TWc9PUJ6UQ==%7C

I have helped design offline particle counters for Catapillar where owners would extract some fluid from their hydraulic lines and then check for particles in a lab.

https://www.hach.com/hc/search.product.details.invoker/PackagingCode=8012-3B4/NewLinkLabel=HIAC+8012%2C+Liquid+Particle+Counting+System/SESSIONID%7CBFZERXlORGM0TXpjNE5Ea3pNRGdtWjNWbGMzUk9Rdz09QWs5UQ==%7C

Make sure you inspect the pump internals and any valves for excessive wear or damage, as a failure of these may just contanimate the system again.

...Ideally your system would have been flushed prior to installing replacement cylinders.

Another good resource is www.heavyequipmentforums.com

Good luck.