Red Seal Agricultural Equipment Technician study plan

Explain the four-stroke cycle of a diesel engine and identify the function of each major component (piston, liner, cylinder head, injector, turbocharger) on a cutaway or parts diagram you draw yourself.

Trace the path of fuel, air, coolant, and lubricant through a complete engine support system and label each circuit on a hand-drawn schematic.

Diagnose three common no-start or low-power complaints by listing the checks in a logical order (air restriction, fuel delivery, compression, timing) and stating the pass/fail criterion for each.

Apply lockout/tagout, stored-energy release, and lifting/blocking procedures to two engine-removal scenarios and write the safe sequence for each.

Identify the PPE and ventilation requirements for handling diesel fuel, coolant, and refrigerant in a shop setting.

Perform and record a compression test and a cylinder leak-down test sequence, including the correct engine temperature, throttle position, and interpretation thresholds.

Describe how to inspect and measure a cylinder liner, piston ring end gap, and valve recession using the correct precision instruments, and state typical service limits.

Set up and read a micrometer, dial bore gauge, and feeler gauge on a practice part and record measurements to the correct number of decimal places.

Explain torque-to-yield fastener procedure and the correct use of a calibrated torque wrench in two tightening sequences (cylinder head, connecting rod).

List the shop-practice rules for tool control, calibration records, and cleanliness when assembling an engine.

Explain Ohm's law and series/parallel circuit behaviour, then solve five worked circuit problems (voltage drop, current draw, resistance) without reference material.

Trace a cranking and a charging circuit from battery through switch, relay, and component, and state the expected voltage at each test point under load.

Describe how to perform a voltage-drop test on a starter circuit and a parasitic draw test, including acceptable limits and meter setup.

Diagnose a CAN bus fault by explaining termination resistance, bus voltage levels, and the difference between a shorted and an open data line.

Explain how engine sensors (crank position, cam position, rail pressure, EGR) feed the ECM and how a failed sensor changes engine behaviour.

Identify the components of an open-centre, closed-centre, and load-sensing hydraulic system and explain how each responds to a blocked or deadheaded circuit.

Read a hydraulic schematic symbol by symbol and explain the function of pumps, relief valves, directional control valves, check valves, and accumulators.

Describe the procedure to safely relieve stored hydraulic pressure, including accumulator bleed-down, before opening a circuit.

Explain how to test pump flow and pressure with a flow meter and interpret the results against specification.

Describe the electrical control side of a hydraulic system: solenoids, proportional valves, joystick input, and how a fault in either side mimics the other.

Explain the power flow through a powershift transmission, a hydrostatic drive, and a mechanical shuttle, and state where each is typically used and why.

Describe how to inspect and adjust clutch packs, final drives, and differential lock components, including the measurements that indicate wear.

Explain hydrostatic drive control (swashplate angle, charge pressure, case drain) and diagnose a loss of drive or creeping complaint.

Describe PTO clutch and brake adjustment procedures and the safety checks required before testing a PTO under load.

Explain how hydraulic pressure and charge pressure faults can present as transmission faults, and list the tests that separate them.

Explain the function and adjustment of seeding components: seed meter, singulation, vacuum or mechanical metering, depth control, closing wheels, and row cleaners.

Describe how to calibrate a seed drill or planter for a target population and verify the result in the field.

Explain the setup and wear checks for tillage tools (discs, sweeps, shanks) and harvesting/forage components (knives, shear bars, conditioning rolls).

Describe the refrigerant cycle in an agricultural cab, the safe recovery and charging procedure, and the checks for a low-charge or restricted-expansion-valve complaint.

Explain cab pressurization and filtration requirements and how a leaking cab seal affects operator health and HVAC performance.

Explain the hydraulic and electrical requirements of loader, bale handling, and application systems (sprayer, spreader) and the safety limits of each.

Describe rate control, section control, and turn compensation on an application system and how each is verified in the field.

Explain how GPS guidance, auto-steer, ISOBUS, and telematics integrate, and list the steps to diagnose a guidance or communication fault.

Describe how to update, back up, and verify implement and display software without losing calibration data.

Review the safety responsibilities for bystanders, transport on public roads, and implement hitching before any field test.

Complete a timed 100-question mixed practice set across all domains and score it by domain to find your two weakest areas.

Re-study only your two weakest domains and write a one-page summary of each from memory.

Rehearse the diagnostic sequence for five symptom-based scenarios (no start, no drive, no hydraulic function, no cooling, poor seed placement) out loud in under five minutes each.

Review all safety procedures and confirm you can state the lockout, pressure-release, and lifting rules without notes.