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: Energy Conversion, Power, Work, Amps, Resistance, Voltage, Ohms, and a whole lot more.

CAN Bus

Updated December, 2018 • 5 Materials

Ready to learn about the CAN Bus Protocol.

Learn about: Cyclic Redundancy Check Field, Controller, Recessive Bit, Standard CAN, Extended CAN, Dominant Bit, Data Field, and a whole lot more.

Connectors

Updated January, 2017 • 4 Materials

Welcome to the session on electrical connectors.

Learn about: Amphenol, Soldering Iron, Deutsch, Solder, Male, Hirschmann, Solenoid Valve Connector, and a whole lot more.

Diodes

Updated July, 2019 • 5 Materials

Learn to use your multimeter to test a diode.

Learn about: Semiconductor, Rectifier, PNP, Light Emitting Diodes, LED, Multimeter, P-type, 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: , Zero Energy, Flame Resistant, Electrical PPE, Burn, Electrical Safety, Static Dissipative Footwear, 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: Electrician, Test For Blown Fuse, Short Circuit, Voltmeter, Voltage Test, Ammeter, Open Circuit, 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: Density, Mag Flow Meter, Mass Flow Rate, , Magnetic Field, Rate, Flow, 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 Test, Fast acting fuse, Circuit breaker, Electrical Circuit Protection, Digital Multimeter, Blown Fuse, Slow blow fuse, and a whole lot more.

Interpreting Electrical Schematics

Updated January, 2017 • 4 Materials

Schematics don't need to be confusing.

Learn about: Signal Ground, Tag, Wire Crossing, Diagram, Earth Ground, Bus, Schematic, 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: Short Circuit Fault, Meter Reading, Electrician, Electrical Fault, System Diagnosis, Skill, Troubleshooting, 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: Inductive, Retroreflective, Through-Beam, Capacitive, Photoelectric, Sensor, 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: Pascal, Variable Capacitance Sensor, Wheatstone Bridge, Absolute Pressure, Gauge Pressure, Indicator Fluids, Piezoelectric Sensors, and a whole lot more.

Relays

Updated September, 2018 • 7 Materials

Relays are demystified in this interactive lesson.

Learn about: Electrical Circuit, Throw, Single Pole Double Throw, Troubleshooting, System, Switch, Relay, 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: Electronics, JFET, ESD, Maintenance, Electrostatic Discharge, Troubleshooting, FET, and a whole lot more.

Sensor Basics

Updated August, 2018 • 14 Materials

Sensors are everywhere in our electrical world.

Learn about: Transmitter, Zero, Transducer, Normalizing, Lower Range Value, NPN, Span, 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: Kirchoff's Voltage Law, Series, Troubleshooting, Industrial Maintenance, Parallel, KVL, Branch, 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: Troubleshooting, Battery, Equalizer, Electrical, Alternator, Starter, 24V, 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, Normally Open, N.C., Toggle, Throw, Selector, Three Way Switching, and a whole lot more.

Variable Resistors

Updated January, 2017 • 5 Materials

Potentiometers vs.

Learn about: Variable Resistor, Resistance, Rheostat, Potentiometer, 2 lead, AC temperature control, wiper, 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, Sin Wave, Analog Control, Volts, Resistance, PWM, Direct Current, 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: throttle valves, area ratio, damping valves, passive control, check valves, pressure valves, active control, and a whole lot more.

Counterbalance Valves

Updated July, 2019 • 5 Materials

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

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

Fixed & Variable Displacement Pumps

Updated July, 2019 • 26 Materials

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

Learn about: Fixed Displacement, Balanced Vane Pump, Compensator, Pressure, Internal Gear Pump, GPM, Driven Gear, and a whole lot more.

Flow & Directional Control Valves

Updated July, 2019 • 18 Materials

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

Learn about: Pilot, Infinite Position, Position, Valve Stack, Troubleshooting, DCV, Solenoid, 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: Pressure, Force, FPA Triangle, lpm, Rotational Force, Hydraulic, Viscosity, and a whole lot more.

Hydraulic Accessories

Updated July, 2018 • 10 Materials

This session covers a handful of hydraulic accessories.

Learn about: Charge, Dynamic Threads, International, Precharge, Poppet, Contamination, Calipers, and a whole lot more.

Hydraulic Actuators

Updated July, 2019 • 10 Materials

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

Learn about: Tube/Barrel, Rod, Rotary Actuator, Seal, Gland, Piston, , and a whole lot more.

Hydraulic Hazards & Safety

Updated January, 2017 • 3 Materials

Safe working habits around hydraulic systems save lives.

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

Hydraulic Schematic Symbols

Updated June, 2019 • 9 Materials

Schematic symbol reading is a vital troubleshooting skill.

Learn about: Schematic symbols, logic valve, adjustable, hydraulic pilot, orifice, mechanical linkage, flow control, 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: power steering, HMU, steering valve, Hand Metering Unit, orbitrol, hydraulic steering, 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: Heat, Hot Loop, Servo, Hydrostatic Loop, Reversing Flow, Closed Loop, Cross Port Relief, 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: Load Sense, Pressure Differential, Margin Pressure, Load Sensing Compensator, Piston Pump, Orifice, Equilibrium, 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: Closed Center, Open Loop, Mobile, Sectional Valve Bank, Open Center, Closed Loop, and a whole lot more.

Parallel & Series Systems

Updated May, 2019 • 17 Materials

Parallel and Series circuits behave very differently.

Learn about: Parallel Circuits, Path of Least Resistance, Branch, Series Circuits, Restriction, Load, 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: Starved Inlet, Restriction, Air, Positive Displacement, Breather, Positive Pressure, Flooded Inlet, and a whole lot more.

Pressure & Flow

Updated July, 2019 • 22 Materials

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

Learn about: Velocity, Resistance, Gauge, Hydraulic Pressure, Flow Rate, Fluid Velocity, Positive Displacement Pump, and a whole lot more.

Pressure Reducing Valves

Updated February, 2019 • 5 Materials

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

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

Pressure Relief Valves

Updated March, 2019 • 19 Materials

Jump into relief valves with this colorful session.

Learn about: cracking pressure, setting pressure, poppet, normally closed, normally open, cartridge, balanced relief valve, 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: Set Pressure, Training, Pressure, Sequence, Sub-Circuit, Order, Hydraulic, 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: Downtime, TSTP, Failure, Ten Step Troubleshooting Process, Guess and Check, Hit or Miss, easy-to-check order, 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: Balanced Relief Valve, Efficient, Pressure Pump , Energy Saving, Restriction, External Pilot Section, Pressure, and a whole lot more.

16 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, Simulation, Drill, Blast Hole Drill, Diverter, Brakes, Holdback, 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: Track Drive, Boom Circuit, Bucket Circuit, 385C, CAT, Excavator, Swing Circuit, 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, Simulations, Steering Circuit, Haul Truck, 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: Stacker, Mining Equipment, Coal, Hoist Circuit, Reclaimer, 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, chain tension, coiled tubing, injector traction, hydraulic faults , 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: EHC Valve, pump regulator, Electro-hydraulic control valve, pump controller, solenoid valves, heavy machinery, and a whole lot more.

Hydraulic Governor

Updated April, 2018 • 2 Materials

The governor is a critical component in hydroelectric dams.

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

Loaders

Updated May, 2019 • 6 Materials

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

Learn about: Wheel Loader, Boom, Tilt, Steering, Lift, Bucket, Shock Valve, and a whole lot more.

Lube Systems

Updated August, 2019 • 1 Material

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: Oilfield, Cementing, Cement Metering Valve, Dust, Air Entrainment, Mixing Head, Slurry, and a whole lot more.

Oilfield Pumping

Updated June, 2018 • 6 Materials

Reciprocating plunger pumps are very common in oilfield pumping.

Learn about: Discharge Valve, Triplex, Positive Displacement Pumping, Re-packing, Packing, High Pressure Pumping, Reciprocating Plunger Pump, 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 bale press, pulp and paper, 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: logic, slip-in cartridge, Rail, low pressure standby, Dumper, Pulp and Paper, Car, and a whole lot more.

Sawmill

Updated April, 2018 • 1 Material

Sawmills are full of specialized hydraulic and electrical equipment.

Learn about: Sawmill, Quadrant Feeder, Hydraulic, Log, Conveyor, Belt, 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: Valve Solenoid Sequence Chart, Truck Dumper, and a whole lot more.

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