The Explorer II is a comprehensive maintenance training system for Industrial Hydraulics. This system provides the components and hands-on training required to effectively troubleshoot and repair hydraulics systems used by today’s employers. TII’s curriculum covers hydraulic technology in its four areas of instruction: Fundamentals, Applications, Physical Properties and Maintenance. We begin with the fundamentals which can be used as either an introduction or a review of key principles. Additional sections focus on different types of valves, cylinders, and hydraulic devices like hydraulic jacks and regenerative circuits. Our training system is accompanied by a comprehensive student manual and instructor’s guide with 42 units of activities and instructional support. Each of the four necessary levels of instruction includes background study of the topic, observational and hands-on experiments, application exercises, and mathematical formulas for proving results. Lockable storage area provides space for manuals and additional components Specialty components available to expand capabilities of the system Mounting hardware included Portable, rugged design Specifications System Specifications Modular system design Constructed of an extruded and welded aluminum “U” channel frame with formed sheet steel shell May be used as a stand-alone system or integrated into a bench configuration with other TII trainers Instrumentation Section Instrumentation Section is mounted at eye-level for easy reading of gauges Panel is constructed of 16-gauge chrome plated and brushed steel All gauges, cylinders, and instruments have been identified in large letting Includes: system pressure gauge, two in-line pressure testing gauges, a four-port pressure manifold, a four-port return manifold, a 24-volt DC power supply, momentary switch with output jacks. Component Panel Mounted at an angle for ease of use Constructed of 16-gauge chrome plated and brushed steel All instruments are clearly identified 4-way, 2-position solenoid directional control valve, relief valve, sequence valve, pressure reducing valve, a compensated flow control valve, uncompensated flow control valve, needle valve, check valve, double acting cylinder (5″ stroke, 1-1/16″ bore), double acting cylinder (5″ stroke, 1-1/12″ bore) Bottom of the component panel is used for conducting experiments and building circuits Additional Components 4-way, 3-position level-operated directional control valve Tandem center spool, viscometer, thermometer, flowmeter Piloted check valve cartridge Power cord for the solenoid valve Load spring kit Two T-fittings, two hose couplings Eight 24″ hydraulic hoses Four 48″ hydraulic hoses 7/8″ open-ended wrench Storage Compartment Behind the component panel and accessed through a hinged door with lock Designed for storing hoses and extra components All components, hoses, instruments, and fitting are industrial-grade design All direction control valves are removable and dissectible Actuators and spools on direction control valves are interchangeable All fittings are ball-check quick connect / disconnect Curriculum Explorer II System Familiarization Principles of Hydraulic Systems Hydraulic Fluids Graphic Communication Symbols Instrumentation: Theory and Purpose Pressure Gauges Flow Meters Pumps Pressure Controls: Theory and Purpose Relief Valves Reducing Valves Sequence Valves Directional Control Valves: Theory and Purpose Manual Directional Control Valves: Closed and Tandem Centers Solenoid Directional Control Valves Check Valves: Theory and Purpose Check Valves Pilot Operated Check Valves Flow Control Valves: Theory and Purpose Needle Valves Pressure Compensated Flow Control Valves Non-Compensated Flow Control Valves Linear Actuators: Theory and Purpose Double Acting Cylinders Speed / Area Relationship of a Cylinder Force / Area Relationship of a Cylinder Rotary Actuators Fluid Filters Piping Considerations and Components Maintenance and Troubleshooting Cylinders in Series Hydraulic Lock Out Dual Speed Control Pump Unloading Cylinders in Parallel Hydraulic Jack Regenerative Circuit Dual Pressure Control Sequenced Cylinders Meter-in Speed Control Meter-out Speed Control Bleed-off Circuit Speed Control
