Hydraulic Systems Troubleshooting

In any troubleshooting situation, no matter how simple or complex the hydraulic system, always start with the basics. This ensures that the obvious is never overlooked. In order for the 'obvious' to be obvious, the fundamental laws of hydraulics must be kept in mind:Hydraulic pumps create flow - not pressure.Resistance to flow creates pressure.Flow determines actuator speed.Pressure determines actuator force.Fluid under pressure takes the path of least resistance.When a fluid (liquid) moves from an area of high pressure to an area of low pressure (pressure drop) without performing useful work, heat is generated.
Theory is great, but it always makes more sense when put into practice. So let's apply these fundamentals to the above situation in a way that ensures the obvious things are not overlooked.