Lesson 1Hydraulic troubleshootin' steps: pressure checks, flow, contamination checksDis section explain stepwise approach to hydraulic troubleshootin', includin' pressure an' flow checks, contamination assessment, an' part isolation, helpin' learners locate faults in pumps, valves, hoses, an' actuators quick.
Reviewing hydraulic circuit schematicsMeasuring system and control pressuresChecking flow and actuator response timeSampling and assessing fluid contaminationIsolating pumps, valves, and cylindersLesson 2Usin' visual, auditory an' tactile cues fi rapid fault identificationDis section cover how fi use sight, sound, an' touch fi quick spot faults, includin' leaks, misalignment, overheat, an' odd noises, while applyin' strict safety practices fi avoid burns, entanglement, or electric shock.
Safe visual inspection around moving partsRecognizing abnormal noises and vibrationsDetecting heat, friction, and rough movementIdentifying leaks, smells, and contaminationPrioritizing faults found with sensory checksLesson 3Mechanical wear diagnosis: vibration analysis, end-play, chain/gear wearDis section explain how fi recognize mechanical wear usin' vibration patterns, end-play checks, an' chain or gear inspection, helpin' learners tell normal age from critical faults dat threaten safety, reliability, or crop work.
Basics of vibration frequency and amplitudeMeasuring and interpreting shaft end‑playInspecting chain elongation and sprocket wearIdentifying gear pitting, scoring, and backlashDeciding repair urgency from wear indicatorsLesson 4Communicatin' simple repair instructions to junior staffDis section focus pon givin' clear, safe, an' actionable repair instructions to junior staff, usin' simple words, visual aids, an' checks fi understanding fi reduce errors, prevent accidents, an' keep agro-equipment downtime low.
Assess junior staff skills and limitationsBreak complex repairs into safe small stepsUse checklists, tags, and visual job aidsConfirm understanding with teach‑back methodsMonitor work progress and correct errorsLesson 5Structured diagnostic workflow: symptom collection, isolation, testin', verificationDis section present structured diagnostic workflow, from symptom collection an' background info to isolation, testin', verification, an' final confirmation, cuttin' guesswork an' repeat failures in agro-equipment maintenance.
Collecting symptoms and operating historyForming and ranking possible fault causesPlanning tests to isolate likely componentsVerifying repairs with functional testingUpdating records and preventive actionsLesson 6Basic test tools an' measurements: multimeter, pressure gauge, hydrometer, tachometerDis section introduce core test tools used in field diagnostics, like multimeters, pressure gauges, hydrometers, an' tachometers, stressin' right setup, safe measurement techniques, calibration checks, an' basic result readin'.
Selecting the right tool for each faultSafe multimeter setup and common rangesUsing pressure gauges on fuel and hydraulicsApplying hydrometers for battery checksMeasuring speed and rpm with tachometersLesson 7Documentation an' fault reportin' fi handover to managers or techniciansDis section train learners fi document faults clear an' report dem to managers or technicians, usin' standard forms, photos, an' codes so repair teams can quick understand history, urgency, an' needed parts or tools.
Recording machine ID, hours, and contextDescribing symptoms and test results clearlyUsing fault codes, photos, and sketchesFlagging safety‑critical issues and prioritiesStoring and sharing reports for traceabilityLesson 8Decision matrix: on-field repair vs. shop repair vs. parts replacementDis section teach how fi use decision matrix fi choose between on-field repair, workshop repair, or parts replacement, balancin' safety, cost, downtime, available tools, an' long-term reliability of tractors an' attached agro-implements.
Defining safety and downtime decision criteriaScoring on‑field versus shop repair optionsWhen to replace parts instead of repairingConsidering warranty, manuals, and regulationsDocumenting and reviewing repair decisionsLesson 9Electrical checks: battery health, voltage drops, sensor signal verificationDis section detail practical electrical checks on agro-equipment, includin' battery health testin', voltage drop measurement, an' sensor signal verification, enablin' accurate diagnosis of startin', chargin', an' control system problems.
Testing battery state of charge and loadMeasuring voltage drops under operationChecking alternator output and groundsVerifying sensor reference and signal wiresInterpreting readings against specifications
