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Hydraulic System Operation (A9501)
Mechanical Hydraulics
This lesson covers the components of hydraulic systems and explains how the components function together to operate a hydraulic system. Interpretation of hydraulic schematics is also taught.

Professional Development Hours: 1
$23.00

Hydraulic Pressure Controls (A9503)
Mechanical Hydraulics
This lesson covers types of pressure control valves, their functions in hydraulic systems and some of their applications. The lesson discusses the principles of hydraulic pressure control with specific applications of check valves, pressure relief valves, direct-acting valves, pilot operated valves, normally- open valves, unloading valves, counterbalance valves, sequence valves, and pressure reducing valves.

Professional Development Hours: 1
$23.00

Hydraulic Pumps, Pumping Principles, and Accumulators (A9502)
Mechanical Hydraulics
This lesson covers hydraulic pumps and accumulators. The lesson shows and explains the functions of pumps in hydraulic systems and the operating principles of different types of pumps. Common maintenance procedures performed on pumps, procedures for inspecting and monitoring pump efficiency, operating principles of different types of accumulators, common maintenance procedures, and pre-charging accumulators are also covered.

Professional Development Hours: 1
$23.00

Directional and Flow Controls (A9504)
Mechanical Hydraulics
This lesson covers types of directional control valves and flow control valves, their functions in a hydraulic system, and some of their applications. This lesson shows four-way, three-position directional control valves and explains different ways they can be centered, actuated, piloted, and drained. This lesson also covers different flow control valve designs and explains how pressure differential affects flow.

Professional Development Hours: 1
$23.00

Hydraulic Actuators (A9505)
Mechanical Hydraulics
This lesson discusses the designs, operating principles, and maintenance of hydraulic cylinders and hydraulic motors. The lesson shows and explains pressure and flow requirements for hydraulic cylinders and hydraulic motor performance. Test procedures for checking internal leakage in a cylinder are also demonstrated.

Professional Development Hours: 1
$23.00

Hand Operated Equipment (A8701)
Mechanical
This lesson shows how to prepare for and carry out a lift using a hand-operated hoist. The lesson describes different types of lifting equipment and when each type would be used.

Professional Development Hours: 1
$23.00

Hand Tools (A8601)
Mechanical
This lesson introduces and demonstrates the proper use of hand tools for holding, turning, and striking. This lesson also describes situations that require the use of each type of tool.

Professional Development Hours: 1
$23.00

Gate Valve Repair
Mechanical
This lesson addresses the procedures for disassembly, inspection, and reassembly of a typical gate valve. The lesson covers the locations and functions of valve components. Procedures for disassembling, inspecting, and measuring valve parts and procedures for lapping the disc and checking seat contact are also covered.

Professional Development Hours: 1
$23.00

Globe and Control Valve Repair (A9102)
Mechanical
This lesson provides guidelines for repairing globe and control valves including procedures for disassembling, inspecting, and reassembling both globe and control valves.

Professional Development Hours: 1
$23.00

Fundamentals of Lubrication
Mechanical
Professional Development Hours: 1
$23.00

Fuses and Circuit Breakers (A8008)
Mechanical
This lesson describes fuses and circuit breakers, and how they work. This lesson shows and explains maintenance, testing, removing, and installing fuses and circuit breakers. This lesson discusses molded case, multiple, and ground fault circuit breakers.

Professional Development Hours: 1
$23.00

Forklifts and Cranes (A8702)
Mechanical
This lesson provides procedures for the safe and efficient operation of forklifts and mobile cranes. The lesson covers specific aspects of operation such as inspections before use and communication during operation, as well as the actual steps involved in lifting and moving loads.

Professional Development Hours: 1
$23.00

Frequently asked questions (FAQs) for Mechanical

The technical meaning of maintenance involves functional checks, servicing, repairing, or replacing necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations.

Maintenance is essential in quality assurance and sometimes determines a company's long-term success. Poorly maintained resources can cause instability and partially or entirely pause production. Malfunctioning machines or complete breakdowns can become a costly process for most companies.

Generally, there are six main maintenance strategies:
1. Reactive (run-to-failure)
2. Predetermined Maintenance.
3. Preventive Maintenance.
4. Corrective Maintenance.
5. Condition-based maintenance.
6. Predictive Maintenance.