Session Listing

Here is a complete list of all the subjects we cover.

20 Electrical Sessions

Basic Electrical Concepts

Updated January, 2017 • 4 Materials

When studying electrical circuits, you need to start with the fundamentals: Voltage, Current, and Resistance.

Learn about: Ohms, Resistance, Energy Conversion, Current, Voltage, Amps, Power, and a whole lot more.

CAN Bus

Updated December, 2018 • 5 Materials

Ready to learn about the CAN Bus Protocol.

Learn about: NRZI, Message Frame, CAN Bus Protocol, CAN-L, Terminal, Confirmation Field, Dominant Bit, and a whole lot more.

Connectors

Updated January, 2017 • 4 Materials

Welcome to the session on electrical connectors.

Learn about: Soldering Iron, Control, Screw, Jack, Solder, Coaxial, Flux, and a whole lot more.

Diodes

Updated August, 2018 • 4 Materials

Learn to use your multimeter to test a diode.

Learn about: Light Emitting Diodes, Rectifier, Electrical, Troubleshooting, LED, N-type, Flyback, and a whole lot more.

Electrical Hazards & Safety

Updated March, 2018 • 3 Materials

Even low voltage systems can seriously injure or even kill.

Learn about: Electrically Insulated Footwear, Hazards, Flame Resistant, Static Dissipative Footwear, Electrical Safety, , Electrical PPE, and a whole lot more.

Electrical Measurements

Updated January, 2017 • 4 Materials

Digital Multimeters (DMM) are one of the most powerful tools available to electricians.

Learn about: Fluke Meter, Resistance Test, Short Circuit, Voltage Test, Measurement, Electrician, Test For Blown Fuse, and a whole lot more.

Flow Sensors

Updated July, 2018 • 3 Materials

Both the electromagnetic flow meter and the mass flow meter measure flow without adding a turbine or a restriction to the mix.

Learn about: Mass Flow Rate, Mass Flow Measuring System, Mag Flow Meter, Electrodes, Magnetic Field, Flow, Faraday's Law of Electromagnetic Induction, and a whole lot more.

Fuses & Circuit Breakers

Updated January, 2017 • 2 Materials

This mini-session gives you a quick overview of these critical circuit protection devices.

Learn about: Fuse, Electrical Circuit Protection, Digital Multimeter, Slow blow fuse, Short Circuit, Circuit breaker, Blown Fuse, and a whole lot more.

Interpreting Electrical Schematics

Updated January, 2017 • 4 Materials

Schematics don't need to be confusing.

Learn about: NEMA, Wire Crossing, Signal Ground, IES, Connection, Off-Page, Symbol, and a whole lot more.

Open & Short Circuit Faults

Updated January, 2017 • 6 Materials

In this session, you'll apply electrical principles to troubleshooting.

Learn about: Open Circuit, Digital Multimeter, Troubleshooting, Ten Step Troubleshooting Process, Skill, Short Circuit Fault, Meter Reading, and a whole lot more.

Position Sensors

Updated July, 2018 • 9 Materials

Inductive, Capacitive, Photoelectric and Ultrasonic proximity sensors are covered in this session.

Learn about: Through-Beam, Capacitive, Inductive, Sensor, Proximity, Ultrasonic, Diffuse, and a whole lot more.

Pressure Sensors

Updated July, 2018 • 10 Materials

Pressure sensing can be done with one of several kinds of technologies.

Learn about: Manometer, Absolute Pressure, psig, psi, Wheatstone Bridge, Pascal, Variable Capacitance Sensor, and a whole lot more.

Relays

Updated September, 2018 • 7 Materials

Relays are demystified in this interactive lesson.

Learn about: Schematic Symbol, Relay, System, Switch, Troubleshooting, Pole, Diagnostic, and a whole lot more.

Semiconductors

Updated January, 2017 • 3 Materials

Transistors are the focus of this session, plus you'll learn how to prevent damage to these sensitive components.

Learn about: Electrostatic Discharge, Troubleshooting, JFET, Electronics, MOV, Metal Oxide Varistor, Semiconductor, and a whole lot more.

Sensor Basics

Updated August, 2018 • 14 Materials

Sensors are everywhere in our electrical world.

Learn about: Normalizing, PNP, Lower Range Value, Live Zero, Span, Sensor, Sourcing, and a whole lot more.

Series & Parallel Circuit Basics

Updated May, 2018 • 8 Materials

Series and parallel circuits are at the heart of every electrical system.

Learn about: Troubleshooting, Kirchoff's Voltage Law, Series, Parallel, Industrial Maintenance, KVL, Electrician, and a whole lot more.

Starting & Charging Systems

Updated January, 2017 • 3 Materials

Dig into mobile electrical circuits with this session on starting and charging systems.

Learn about: Battery, Alternator, Equalizer, Electrical, 24V, Starter, Troubleshooting, and a whole lot more.

Switches

Updated January, 2017 • 12 Materials

Switches are one of most common control elements used in electrical circuit design.

Learn about: 3 Way Switching, Normally Closed, Three Way Switching, Throw, Pole, Control, Rating, and a whole lot more.

Variable Resistors

Updated January, 2017 • 5 Materials

Potentiometers vs.

Learn about: AC temperature control, Variable Resistor, Resistance, Potentiometer, 2 lead, wiper, Rheostat, and a whole lot more.

Waveforms & Signal Generation

Updated October, 2018 • 8 Materials

Direct current is common in low voltage systems, but as soon as you start working with high voltage, you'll need to know about alternating current.

Learn about: Frequency, Alternating Current, Direct Current, Control Voltage, Hertz, Hz, Digital Control, and a whole lot more.

22 Hydraulics Sessions

Counterbalance Valves

Updated January, 2017 • 5 Materials

Counterbalance valves allow raised loads to be lowered safely, with a minimum of wasted energy.

Learn about: Safety, Counterbalance Valve, Load Holding, Adjusting a Counterbalance Valve, Motion Control, Runaway Load, Raised Load, and a whole lot more.

Cross-Port Relief Valves

Updated January, 2017 • 5 Materials

Cross-port relief valves expand on the standard relief valve to control otherwise destructive pressures created by external forces acting against an actuator.

Learn about: Cross-Port Relief Valves, Flywheel Mass, Braking Valves, Overpressure, Regenerative, and a whole lot more.

Electro-Hydraulic Valves

Updated July, 2018 • 5 Materials

Enter the world of electro-hydraulic valves in this session.

Learn about: electro-hydraulic valves, moog, proportional valves, servo valves, and a whole lot more.

Fixed & Variable Displacement Pumps

Updated June, 2018 • 25 Materials

If you have questions about hydraulic pumps, this is the session for you.

Learn about: Swash Plate, Cam Ring, Gerotor, Gear Pump, Vanes, Pressure, Slippage, and a whole lot more.

Flow & Directional Control Valves

Updated October, 2018 • 18 Materials

This session is absolutely packed with fun lessons and interactive animations.

Learn about: Choke, Solenoid, Float, Large Volume, Closed, Response, Port, and a whole lot more.

Fluid Power Basics

Updated September, 2018 • 8 Materials

If you're looking for the starting point in your study of hydraulics, this is it.

Learn about: Laminar Flow, gpm, Watts, Newtons, Force, lpm, Rotational Force, and a whole lot more.

Hydraulic Accessories

Updated July, 2018 • 10 Materials

This session covers a handful of hydraulic accessories.

Learn about: Hydro-Pneumatic Accumulator, NPTF, Hydraulic Hose Pressure Rating, Complete Threads, Metric Parallel, Brackets, International, and a whole lot more.

Hydraulic Actuators

Updated July, 2018 • 10 Materials

Linear and rotary actuators are the muscles of a hydraulic system.

Learn about: Motor, Piston, Cylinder, TSTP, Linear Actuator, Rod, Semi-Rotary Actuators, and a whole lot more.

Hydraulic Hazards & Safety

Updated January, 2017 • 3 Materials

Safe working habits around hydraulic systems save lives.

Learn about: Unexpected Motion, Heat, Zero Energy State, Hose and Fitting Failure, Pinch Points, System Adjustment Hazards, Flammability, and a whole lot more.

Hydraulic Schematic Symbols

Updated January, 2017 • 7 Materials

Schematic symbol reading is a vital troubleshooting skill.

Learn about: flow control, check valve, drafting, spring, cylinder, drain line, rotation, and a whole lot more.

Hydraulic Steering

Updated January, 2018 • 6 Materials

This session will go into detail on hydraulic power steering and how it works.

Learn about: hydraulic steering, HMU, orbitrol, steering valve, power steering, Hand Metering Unit, and a whole lot more.

Hydrostatic (Closed Loop) Systems

Updated July, 2018 • 13 Materials

Get right into the design of closed loop systems with colourful graphics and detailed drawings.

Learn about: Hydrostatic Loop, Reversing Flow, Servo, Hot Loop, Heat, Closed Loop, Cavitation, and a whole lot more.

Load Sensing Pumps

Updated January, 2017 • 11 Materials

This animated and interactive session takes the mystery out of load sense.

Learn about: Hunting, Equilibrium, Load Sense, Pressure Differential, Orifice, Flow Control, Load Sensing Compensator, and a whole lot more.

Open & Closed Center Systems

Updated January, 2017 • 10 Materials

This session tackles the differences and similarities between open and closed center systems.

Learn about: Sectional Valve Bank, Mobile, Open Center, Open Loop, Closed Loop, Closed Center, and a whole lot more.

Parallel & Series Systems

Updated January, 2017 • 16 Materials

Parallel and Series circuits behave very differently.

Learn about: Branch, Parallel Circuits, Path of Least Resistance, Series Circuits, Load, Restriction, Pressure Drops, and a whole lot more.

Positive & Non-Positive Pumping

Updated May, 2018 • 16 Materials

Positive and Non-Positive Pumping tackles the differences between the two types of systems, and the design and maintenance needs of each.

Learn about: Cavitation, Flooded Inlet, Positive Displacement, Positive Pressure, Void Bubbles, Aeration, Air, and a whole lot more.

Pressure & Flow

Updated October, 2018 • 17 Materials

This session gets you started with a solid foundation on pressure and flow basics.

Learn about: Slippage, Hydraulic Pressure, FPA Triangle, Positive Displacement Pump, Velocity, Resistance, Gauge, and a whole lot more.

Pressure Reducing Valves

Updated January, 2017 • 5 Materials

Pressure reducing valves function very differently than relief valves, even though their schematic symbols look very similar.

Learn about: Direct Acting, Pilot Operated, Pressure Reducing Valve, Pressure, Normally Closed, Downstream Pressure, and a whole lot more.

Pressure Relief Valves

Updated January, 2017 • 19 Materials

Jump into relief valves with this colorful session.

Learn about: pressure spikes, direct acting relief, spool, pressure control valve, balanced relief valve, cartridge, cracking pressure, and a whole lot more.

Sequence Valves

Updated January, 2017 • 5 Materials

Sequence valves are used on many machines to choreograph hydraulic functions.

Learn about: Training, Valve, Hydraulic, Pressure, Sub-Circuit, Set Pressure, Sequence, and a whole lot more.

Troubleshooting Processes

Updated January, 2017 • 7 Materials

Troubleshooting a hydraulic system can be a demanding and tricky task.

Learn about: easy-to-check order, Failure, Guess and Check, Ten Step Troubleshooting Process, Hit or Miss, Downtime, TSTP, and a whole lot more.

Unloading Valves

Updated January, 2017 • 6 Materials

Unloading valves are often confused with relief valves, but they play a unique role in hydraulic systems.

Learn about: Efficient, Balanced Relief Valve, Pressure, Unloading Valve, Volume Pump, Fast Approach Slow Feed Circuit, Pressure Pump , and a whole lot more.

15 Machinery Sessions

Blast Hole Drills

Updated August, 2018 • 3 Materials

This session gets you right into the hydraulic circuit sections in a common blast hole drill.

Learn about: Brakes, Diverter, Drill, Atlas Copco, Holdback, Propel, Simulation, and a whole lot more.

Cat Excavators

Updated September, 2018 • 3 Materials

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Learn about: , and a whole lot more.

Cat Haul Trucks

Updated October, 2018 • 1 Material

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Learn about: , and a whole lot more.

Coal Stacker-Reclaimer

Updated June, 2018 • 2 Materials

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Learn about: , and a whole lot more.

Coiled Tubing Units

Updated April, 2018 • 3 Materials

This session is specific to coiled tubing units and problems related to injector chain tension and traction.

Learn about: Coil tubing injector, hydraulic faults , coiled tubing, chain tension, injector traction, and a whole lot more.

Deere-Hitachi Excavators & Shovels

Updated July, 2018 • 25 Materials

In the world of excavators & shovels, there are a lot of specialized hydraulic components used to solve problems specific to such large mobile machinery.

Learn about: pump controller, Electro-hydraulic control valve, EHC Valve, heavy machinery, solenoid valves, pump regulator, and a whole lot more.

Hydraulic Governor

Updated April, 2018 • 2 Materials

The governor is a critical component in hydroelectric dams.

Learn about: dam, regulate, engine, hydraulic, generation, governor, hydroelectric, and a whole lot more.

Komatsu Haul Trucks

Updated September, 2018 • 7 Materials

Check this session out for a bundle of 830E and 930E Live Schematics.

Learn about: Inlet Section, Hoist, Bleeddown Manifold, Split Spool Section, Brakes, Steering, Hydraulic, and a whole lot more.

Loaders

Updated October, 2018 • 5 Materials

Get to know your way around the hydraulics on a loader with the advanced simulations in this sessions.

Learn about: Mobile Equipment Hydraulic, Steering, Front-End Loader, Loader Schematic, Boom, Tilt, Lift, and a whole lot more.

Oilfield Cementing

Updated May, 2018 • 1 Material

Oilfield cementing has driven industrial process technology to produce many specialized components, which you'll learn about in this session.

Learn about: Mixing Head, Air Entrainment, Dust, Clumping, Dry Blending, Cementing, Diffuser, and a whole lot more.

Oilfield Pumping

Updated June, 2018 • 6 Materials

Reciprocating plunger pumps are very common in oilfield pumping.

Learn about: Suction Valve, Reciprocating Plunger Pump, Power End, Re-packing, High Pressure Pumping, Discharge Valve, Triplex, and a whole lot more.

Pulp Bale Presses

Updated April, 2018 • 4 Materials

Compacting sheet pulp or loose pulp to a bale size that is optimal for shipping requires a massive hydraulic press.

Learn about: pulp and paper, Pulp bale press, and a whole lot more.

Rail Car Dumper

Updated June, 2018 • 1 Material

Learn through play about a pulp-chip rail car dumper.

Learn about: Pulp and Paper, slip-in cartridge, Car, logic, low pressure standby, Dumper, Rail, and a whole lot more.

Sawmill Conveyors

Updated April, 2018 • 1 Material

Sawmills are full of specialized hydraulic and electrical equipment.

Learn about: Conveyor, Belt, Log, Hydraulic, Sawmill, Quadrant Feeder, and a whole lot more.

Truck Dumper

Updated November, 2018 • 1 Material

Step through the operational stages as a truck dumper runs in schematic form.

Learn about: Truck Dumper, Valve Solenoid Sequence Chart, and a whole lot more.

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