Session Listing

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

20 Electrical Sessions

Basic Electrical Concepts

Updated March, 2018 • 4 Materials

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

Learn about: Work, Ohm's Law, Watts, Ohms, Voltage, Energy Conversion, Current, and a whole lot more.

CAN Bus

Updated December, 2018 • 5 Materials

Ready to learn about the CAN Bus Protocol.

Learn about: CAN-L, Data Field, Check Field, Start Field, Dominant Bit, Control Field, CAN Bus Protocol, and a whole lot more.

Connectors

Updated January, 2017 • 4 Materials

Welcome to the session on electrical connectors.

Learn about: Connector, Signal, Male, Metri-Pack, Flux, Solenoid Valve Connector, Data, and a whole lot more.

Diodes

Updated July, 2019 • 5 Materials

Learn to use your multimeter to test a diode.

Learn about: Light Emitting Diodes, PNP, Circuit, Multimeter, P-type, Flyback, LED, 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: Flame Resistant, Static Dissipative Footwear, Electrical PPE, , Electrocution, Electrically Insulated Footwear, Electrical Safety, 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: Voltmeter, Electrician, Ammeter, DMM, Electrical, Resistance Test, Digital Multimeter, 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: Electromagnetic Flow Meter, Density, Mass Flow Measuring System, Mag Flow Meter, , Flow, Rate, 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: Blown Fuse, Testing Fuses, Short Circuit, Fast acting fuse, Inspecting Fuses, Fuse, Fuse Test, and a whole lot more.

Interpreting Electrical Schematics

Updated January, 2017 • 4 Materials

Schematics don't need to be confusing.

Learn about: Earth Ground, Chassis Ground, Connection, IES, Wire Crossing, Standard, Draft, and a whole lot more.

Open & Short Circuit Faults

Updated April, 2019 • 7 Materials

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

Learn about: Troubleshooting, Electrical Fault, Open Circuit, Digital Multimeter, Electrician, Short Circuit Fault, Skill, 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: Capacitive, Retroreflective, Thru-Beam, Ultrasonic, Photoelectric, Inductive, Through-Beam, 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: Wheatstone Bridge, Piezoelectric Sensors, Pascal, Gauge, Pressure, Differential, Manometer, and a whole lot more.

Relays

Updated September, 2018 • 7 Materials

Relays are demystified in this interactive lesson.

Learn about: Electrical Circuit, Troubleshooting, Switch, Throw, Single Pole Double Throw, Schematic Symbol, System, 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: Component, Metal Oxide Varistor, FET, Electrostatic Discharge, Schematic, BJT, JFET, and a whole lot more.

Sensor Basics

Updated October, 2019 • 15 Materials

Sensors are everywhere in our electrical world.

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

Series & Parallel Circuit Basics

Updated August, 2019 • 9 Materials

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

Learn about: Troubleshooting, Branch, KVL, Electrical Circuit, Kirchoff's Voltage Law, System Design, Series, 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: Alternator, Electrical, 24V, Troubleshooting, Equalizer, 12V, Battery, and a whole lot more.

Switches

Updated July, 2019 • 13 Materials

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

Learn about: 3 Way Switching, N.O., Pole, Toggle, Normally Closed, N.C., Switch, and a whole lot more.

Variable Resistors

Updated January, 2017 • 5 Materials

Potentiometers vs.

Learn about: Rheostat, Potentiometer, wiper, Resistance, Variable Resistor, AC temperature control, 2 lead, 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: Amplitude, Resistance, Triangle Wave, Hz, AC, Pulse Width Modulation, Sin Wave, and a whole lot more.

23 Hydraulics Sessions

Cartridge Valves

Updated December, 2018 • 4 Materials

In this session you'll find an in-depth introduction to slip-in cartridge valves.

Learn about: passive control, area ratio, check valves, valve cover plate, hydraulics, throttle valves, pressure valves, and a whole lot more.

Counterbalance Valves

Updated September, 2019 • 7 Materials

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

Learn about: Load Holding, Motion Control, Safety, Counterbalance Valve, Raised Load, Adjusting a Counterbalance Valve, Runaway 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: Regenerative, Overpressure, Cross-Port Relief Valves, Braking Valves, Flywheel Mass, and a whole lot more.

Electro-Hydraulic Valves

Updated April, 2019 • 6 Materials

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

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

Fixed & Variable Displacement Pumps

Updated September, 2019 • 30 Materials

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

Learn about: Crescent Seal Pump, Pressure Compensated Pump, Internal Gear Pump, Outlet, GPM, Cam Ring, Fixed Displacement, and a whole lot more.

Flow & Directional Control Valves

Updated September, 2019 • 30 Materials

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

Learn about: Tandem, Float, Spool, Response, Operator, Three Section Valves, Flow Paths, 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: Heat, Gallons Per Minute, Fluidic Principles, Force Multiplication, Linear Force, Dynamic Pressure, gpm, and a whole lot more.

Hydraulic Accessories

Updated September, 2019 • 11 Materials

This session covers a handful of hydraulic accessories.

Learn about: Thread Gauge, Metric Parallel, Thread Size Chart, BSPP, Female, Bladder, Contamination, and a whole lot more.

Hydraulic Actuators

Updated September, 2019 • 13 Materials

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

Learn about: , Rod End, Linear Actuator, Blind End, Rotary Actuator, Semi-Rotary Actuators, Tube/Barrel, and a whole lot more.

Hydraulic Hazards & Safety

Updated January, 2017 • 3 Materials

Safe working habits around hydraulic systems save lives.

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

Hydraulic Schematic Symbols

Updated August, 2019 • 10 Materials

Schematic symbol reading is a vital troubleshooting skill.

Learn about: spring, logic valve, pilot line, rotation, manifold line, operator, hydraulic pilot, and a whole lot more.

Hydraulic Steering

Updated September, 2019 • 7 Materials

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

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

Hydrostatic (Closed Loop) Systems

Updated November, 2019 • 17 Materials

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

Learn about: Charge Pump, Servo, Mobile, Hot Oil Shuttle Valve, Cavitation, Hydrostatic Loop, Closed Loop, and a whole lot more.

Load Sensing Pumps

Updated November, 2019 • 18 Materials

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

Learn about: LS, Piston Pump, Orifice, Load Sensing Compensator, Flow Control, Load Sense, Hunting, and a whole lot more.

Open & Closed Center Systems

Updated September, 2019 • 10 Materials

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

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

Parallel & Series Systems

Updated September, 2019 • 20 Materials

Parallel and Series circuits behave very differently.

Learn about: Branch, Pressure Drops, Path of Least Resistance, Restriction, Load, System Pressure, Series Circuits, 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: Aeration, Mechanical Erosion, Cavitation, Partial Vacuum Pressure, Charge Pump, Void Bubbles, Air, and a whole lot more.

Pressure & Flow

Updated October, 2019 • 23 Materials

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

Learn about: Gauge, Hydraulic Pressure, Velocity, Resistance, FPA Triangle, Hydraulic Flow, Fluid Velocity, and a whole lot more.

Pressure Reducing Valves

Updated September, 2019 • 7 Materials

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

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

Pressure Relief Valves

Updated September, 2019 • 27 Materials

Jump into relief valves with this colorful session.

Learn about: pressure control valve, cracking pressure, cartridge, pilot, pressure override, unloading valves, normally open, and a whole lot more.

Sequence Valves

Updated August, 2019 • 5 Materials

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

Learn about: Order, Hydraulic, Pressure, Set Pressure, Sequence, Valve, Training, 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: Hit or Miss, Downtime, Guess and Check, TSTP, Failure, Ten Step Troubleshooting Process, easy-to-check order, and a whole lot more.

Unloading Valves

Updated September, 2019 • 7 Materials

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

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

17 Machinery Sessions

Blast Hole Drills

Updated March, 2018 • 3 Materials

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

Learn about: Atlas Copco, Hydraulic Circuit, Diverter, Propel, Animation, Holdback, Drill, and a whole lot more.

Cat Excavators

Updated September, 2018 • 3 Materials

Familiarize yourself with the inner workings of excavator hydraulic systems that are specific to Caterpillar.

Learn about: Bucket Circuit, Track Drive, Excavator, 385C, Swing Circuit, Boom Circuit, CAT, and a whole lot more.

Cat Haul Trucks

Updated May, 2019 • 2 Materials

Explore Caterpillar haul trucks with a couple animated circuits in this session.

Learn about: Hoist Circuit, Haul Truck, Simulations, Steering Circuit, and a whole lot more.

Coal Stacker-Reclaimer

Updated June, 2018 • 2 Materials

Coal stacker-reclaimers are used to either receive coal or to stockpile it.

Learn about: Coal, Stacker, Reclaimer, Hoist Circuit, Mining Equipment, and a whole lot more.

Coiled Tubing Units

Updated September, 2019 • 4 Materials

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

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

Concrete Pump

Updated November, 2019 • 4 Materials

This session is all about truck-mounted concrete pumps.

Learn about: concrete, truck, cement, duplex plunger pump, and a whole lot more.

Deere-Hitachi Excavators & Shovels

Updated December, 2019 • 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, heavy machinery, Electro-hydraulic control valve, EHC Valve, pump regulator, solenoid valves, and a whole lot more.

Hydraulic Governor

Updated April, 2018 • 2 Materials

The governor is a critical component in hydroelectric dams.

Learn about: electricity, regulate, dam, hydroelectric, generation, hydraulic, engine, 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: Split Spool Section, Brakes, 930E, Hoist, Live Schematic, 830E, Hydraulic, and a whole lot more.

Loaders

Updated October, 2019 • 9 Materials

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

Learn about: Boom, Lift, Front-End Loader, Shock Valve, Auxiliary, Steering, Loader Schematic, and a whole lot more.

Lube Systems

Updated September, 2019 • 2 Materials

Keeping bearings and gears lubricated in a production environment often involves a pumped lubricant.

Learn about: Bearings, Lubricant, Simulation, Hydraulic Lube Systems, 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: Air Entrainment, Dust, Oilfield, Dry Blending, Diffuser, Clumping, Slurry, and a whole lot more.

Oilfield Pumping

Updated June, 2018 • 6 Materials

Reciprocating plunger pumps are very common in oilfield pumping.

Learn about: Re-packing, Positive Displacement Pumping, Triplex, Fluid End, Suction Valve, High Pressure Pumping, Maintenance, 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 May, 2018 • 1 Material

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

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

Sawmill

Updated September, 2019 • 1 Material

Sawmills are full of specialized hydraulic and electrical equipment.

Learn about: Hydraulic, Log, Belt, Conveyor, Quadrant Feeder, Sawmill, 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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