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sales@northernhydraulics.netHydraulic 101: Basics, Repair & Troubleshooting
This is where to start if you want to understand hydraulics, not just throw parts at a problem. Hydraulic 101 covers the fundamentals — pressure, flow, and how cylinders, pumps, and valves actually work — then moves into hands-on guides for diagnosing drift, fixing leaks, bleeding air, and rebuilding a cylinder on your own bench. Written in plain language by people who answer these questions on the phone every day.
Featured guide
Basic Hydraulic Theory
Pressure, flow, and force — the fundamentals behind every hydraulic circuit.
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Buying Guides
How to Identify the Right Hydraulic Hose Fitting Type
Thread types, seat angles, and how to measure them.
Tool
Hydraulic Calculator
Every formula you need to spec your unit.
Buying Guides
How to Measure a Hydraulic Cylinder
Bore, stroke, rod, and mounts — get the right size.
Buying Guides
How to Size a Log Splitter: Tonnage by Log Diameter
Tonnage by log diameter — the size you actually need.
Tools
Common EOH Wiring Diagrams
Wiring diagrams for the common power-unit setups.
Buying Guides
How to Measure Gear Pump For a Replacement
Gear width, shaft, and ports — match your pump.
Collection
All Resources
Every guide, chart, and how-to in one place.
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