Agric Equipment Mechanic study guide
Agric Equipment Mechanic · Work through your exam, one topic at a time.
The Agricultural Equipment Mechanic credential is a knowledge assessment for technicians who service and repair farm machinery - tractors, combines, sprayers, balers, and the implements they pull. It is aimed at people entering the trade from a dealership apprenticeship, a two-year diesel or agricultural power program, or a farm shop background, and at experienced mechanics who want a formal way to demonstrate breadth beyond the machines they see every day. The Agric Equipment Mechanic study guide has 10 sections and about 2,605 words.
01Agricultural Equipment Fundamentals and Safety
Understand the major machine families (tractors, combines, sprayers, balers, tillage implements) and how power flows from engine to ground and to the implement. Know hitch categories and three-point geometry (lower links, lift links, top link, draft/position control), PTO standards (540 and 1000 rpm, spline counts, shaft shielding), and remote hydraulic outlet conventions.
296 words, about 1 min02Engines and Fuel Systems
Know the four-stroke cycle (intake, compression, power, exhaust) and diesel combustion by compression ignition. Understand displacement, compression ratio, valve timing, turbocharging and aftercooling, and the difference between naturally aspirated and turbocharged output.
276 words, about 1 min03Power Trains and Transmissions
Trace power from engine to clutch or torque converter, transmission, differential, final drives, and wheels. Know manual gear transmissions, power shift, hydrostatic drives, and continuously variable transmissions (CVT), plus the clutch, damper, and PTO clutch packs.
270 words, about 1 min04Hydraulic Systems
Understand open-center vs closed-center (load-sensing) systems, pumps (gear, piston, variable displacement), relief valves, flow dividers, accumulators, and remote valves. Know cylinder calculations: force = pressure x area, and extension vs retraction force differ because rod area reduces effective piston area.
273 words, about 1 min05Electrical and Electronic Systems
Know 12 V and 24 V systems, batteries, alternators, starters, relays, fuses, and grounds. Understand series vs parallel battery connections and how voltage and capacity change.
255 words, about 1 min06Steering, Brakes, and Suspension
Understand steering types: mechanical, hydrostatic (orbitrol), and articulated frame steering, plus steering cylinder and priority valve function. Brake content covers wet disc brakes, hydraulic and air systems, parking brakes, and brake adjustment.
270 words, about 1 min07Tires, Tracks, and Wheels
Know tire construction (bias vs radial), ply rating, load index, speed rating, and tread patterns for agricultural use. Understand rolling circumference, inflation pressure effects on footprint and soil compaction, ballasting, and dual/triple configurations.
239 words, about 1 min08Air Conditioning, Heating, and Cab Systems
Understand the refrigeration cycle: compressor, condenser, expansion device, evaporator, and refrigerant states. Know refrigerant handling, recovery and recycling, leak detection, and system pressures.
241 words, about 1 min09Precision Agriculture and Implement Systems
Know GPS/GNSS guidance, RTK correction, auto-steer, section control, variable-rate application, and ISOBUS communication between tractor and implement. Understand yield monitoring, prescription maps, and telematics.
244 words, about 1 min10Inspection, Diagnosis, and Repair Procedures
Know systematic diagnosis: gather symptoms, verify the complaint, form a hypothesis, test, and confirm repair. Use service information, fault codes, and measurement.
241 words, about 1 min