How can you tell when a hydraulic filter needs to be changed?
How can you tell when a hydraulic filter needs to be changed?
The only way to know when the oil needs to be changed is through oil analysis. A similar situation applies to hydraulic filters. If you change them based on schedule, you’re changing them either too early or too late.
What causes the reverse spool end of a hydraulic cylinder to stick?
1. Check installation drawings. 2. Check parts and drawings. 3. Reverse spool end for end. CYLINDERS TROUBLE CAUSE REMEDY ERRATIC ACTION 1. Valves sticking or binding 2. Cylinder sticking or binding 3. Sluggish operation during warm-up period 4. Pilot control pressure too low 5. Internal leakage in cylinder 6. Air in system 1.
Where is the best place to avoid a hydraulic filter?
There are two hydraulic filter locations that do more harm than good and can rapidly destroy the very components they were installed to protect. These filter locations which should be avoided are the pump inlet and drain lines from the housings of piston pumps and motors.
Can a clogged intake line cause a hydraulic failure?
In extreme cases, cavitation can cause mechanical failure of system components. While cavitation can occur just about anywhere within a hydraulic circuit, it commonly occurs at the pump. A clogged inlet strainer or restricted intake line will cause the fluid in the intake line to vaporize.
Where is the wrong place to put a hydraulic filter?
Wrong! There are two hydraulic filter locations that do more harm than good and can rapidly destroy the very components they were installed to protect. These filter locations which should be avoided are the pump inlet and drain lines from the housings of piston pumps and motors.
Why does my excavator stall when under load?
The excavator is well serviced, engine looks and works well, but when under load, the engine revs go down very fast, it stalls and there is no hydraulic power. I can excavate only with the tip of the bucket. If I try deeper, it stalls. It also happens with every other movement.
1. Check installation drawings. 2. Check parts and drawings. 3. Reverse spool end for end. CYLINDERS TROUBLE CAUSE REMEDY ERRATIC ACTION 1. Valves sticking or binding 2. Cylinder sticking or binding 3. Sluggish operation during warm-up period 4. Pilot control pressure too low 5. Internal leakage in cylinder 6. Air in system 1.
In extreme cases, cavitation can cause mechanical failure of system components. While cavitation can occur just about anywhere within a hydraulic circuit, it commonly occurs at the pump. A clogged inlet strainer or restricted intake line will cause the fluid in the intake line to vaporize.
