Re: Ferguson hydraulics

Posted by greg on March 11, 2001 at 18:04:21 from (168.169.144.22):

In Reply to: Ferguson hydraulics posted by Barry Gould on March 11, 2001 at 12:28:04:

Hydraulics are a wonderful thing. You must first determine if you in fact have a pump problem or other problems. I recommend 1) check fluid level. Many problems can be traced to fluid problems of some sort-level included. 2) System must have a relief valve in it. Before hooking up any gauges to check pressures, make sure you hook gauges AFTER the relief. This will tell you relief pressure setting And protect your system from damage. 3)Most loader spools have a relief built in them. Recognized by an "acorn" style locknut over an adjustment bolt. Remove hose going to lift cylinders, install gauge in this hose, move lever to lift position and read gauge. This will tell you relief setting, but make sure 1)the hose has no tee's in it because fluid pressure will go to the path of least reistance and not to your gauge,2)BE CERTAIN YOU ARE HOOKED BEYOND THE RELIEF OR IMMEDIATE PUMP DAMAGE WILL RESULT.3)DO NOT HOLD SYSTEM 'AGAINST RELIEF' FOR MORE THAN A FEW SECONDS AT A TIME AS SYSTEM DAMAGE MAY RESULT. System should develop at least 1200 psi to do much work, but service manuals will have specs. If pressure is sufficient, you may have seals in the cylinders that are bypassing oil, end result being that the path of least resistance is around the seal instead of against it (doing work). Seals bypassing is usually accompanied by the cylinders slowly drifting down (but not always). Be cautious when performing these steps, because even if you do everything right, you will still be asking these older hydraulic hoses to do a lot and may end up with an oil shower. Hope these suggestions help find your trouble.

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