Lesson 1Function and operation of hydraulic pumps (gear, vane, piston)Learn about gear, vane, and piston pumps, their working principles, efficiency, flow control, and common breakdowns, plus tips on spotting wear signs and scheduling preventive checks.
External and internal gear pumpsVane pump operation and featuresAxial and radial piston pumpsFixed versus variable displacementCommon pump wear and noise signsLesson 2Hydraulic filters: types, micron ratings, and installation locationsUnderstand filter types, micron sizes, and beta ratios, and how to pick and place them in suction, pressure, and return lines to manage dirt and safeguard pumps, valves, and movers.
Suction, pressure, and return filtersMicron rating and beta ratio basicsFilter media types and dirt holdingChoosing filter locations in circuitsMonitoring clogging and changeoutLesson 3Directional, pressure, and flow control valves: operation and common wear patternsDive into directional, pressure, and flow valves, their inner workings, symbols, and usual wear signs, and see how valve state affects movement control, power use, and system steadiness.
Spool and poppet directional valvesRelief, reducing, and sequence valvesFlow control and throttle valvesValve symbols and port functionsErosion, sticking, and leakage wearLesson 4Auxiliary components: pressure gauges, coolers, accumulators, and valvesExplore extra parts like gauges, coolers, accumulators, and check valves, their roles, sizing tips, and how they aid safe running, fault-finding, and power saving.
Pressure and temperature gaugesAir and water oil coolersBladder and piston accumulatorsCheck and counterbalance valvesSafety devices and relief pathsLesson 5Hoses, fittings, and piping: materials, pressure classes, and failure modesCheck out hoses, fittings, and pipes in hydraulic setups, key materials, pressure limits, routing tips, and frequent failures that affect safety, leaks, and service times.
Hose constructions and standardsFitting types and sealing methodsPipe and tube materials and ratingsRouting, clamping, and bend radiusBurst, abrasion, and fatigue failuresLesson 6Reservoir design, breathers, and oil managementLook at tank sizing, inside setup, breather choices, oil level checks, dirt prevention, and heat control to prolong oil life and shield key hydraulic parts.
Reservoir sizing and dwell timeInternal baffles and return arrangementsBreather types and filtration levelsOil level monitoring and alarmsMoisture and air ingress controlLesson 7Overview of closed-loop and open-loop hydraulic systemsCompare open and closed hydraulic circuits, their layouts, control styles, efficiency, and common uses, stressing how each setup influences fault-finding and upkeep.
Basic open-loop circuit layoutBasic closed-loop circuit layoutEnergy efficiency and heat generationControl accuracy and responseMaintenance and failure tendenciesLesson 8Typical operating parameters: pressure ranges, temperatures, and flow rates for industrial presses (reference values and sources)Outline usual pressure, temp, and flow for factory presses, how to read spec sheets, and use standards to confirm safe, effective running conditions.
Typical system and peak pressure rangesNormal and extreme oil temperature limitsCommon pump and actuator flow rangesReading OEM and ISO data sheetsUsing safety factors in sizingLesson 9Cylinders and actuators: rod, seals, cushions, and mounting considerationsExamine cylinders and actuators, rod styles, seals, cushions, and fittings, and how they shape load handling, motion control, leak risks, and lifespan.
Cylinder types and basic constructionRod materials, coatings, and finishesSeal types, functions, and failure signsCushion design and adjustment methodsMounting styles and alignment issues
