Hydraulic System Flushing
How To Get The Best Results When Flushing Your Hydraulic System
Flushing Machines are Available for Sale or Rental!
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But even when an oil analysis is returned with unsatisfactory results, it is not always necessary – or even desirable – to replace the oil. As long as the oil has not lost viscosity and has not been damaged by overheating, it can be reclaimed by flushing the system. When the oil in the reservoir is merely replaced, several gallons of bad oil are left in the lines and components – as much as half of the oil in some machines. As the new clean oil passes through the machine, it mixes with the old oil and absorbs contaminants and varnishes left on the surfaces of the components returning them to the reservoir and circulating them through the machine to cause even further damage. Often within a few weeks of operation, the next oil analysis is not much better than the one of the old oil.
As shown in the picture on the right, what comes from the reservoir can tell a lot about the condition of the hydraulic system. It is during this step that evidence of component wear can be found and dealt with before causing a loss of production.
- Ease of use and maintenance
- Durability and ability to withstand exposure to the elements
- Flow rate
- Level of filtration
Our machines can be left running outdoors without damage and delivers a good flow rate (a 5 GPM gear pump is used) to minimize the time that it must stay in service on a given machine. The filter elements used remove particles of contamination below one micron at a very high beta ratio. The result is oil that is ultra-clean and will act as a solvent to remove contaminants and varnishes in the downstream components of the system. These contaminants are returned to the reservoir and trapped by the filters of the flushing machine. Any water that is suspended in the oil is also trapped by the filters. In addition to cleaning hydraulic oil, there are filter elements available for this machine to clean diesel oil, transmission fluid, gear oil, water and anti-freeze.
One of the 1-micron Flushing Machine filters
Reclaiming the oil while refilling the reservoir.
Contact GPM right away to purchase your own machine and get these kind of results on your own equipment!
Oil samples taken from a 500-gallon reservoir with oil that was badly contaminated and had a high water content (left to right) before flushing, after one pass through flushing machine, after 4 hours of flushing and after 16 hours of flushing.