Professor of maintenance mechanics

Industrial Maintenance Mechanics Instructor — SENAI

Didactic Planning and Pedagogical Organization

As an instructor at SENAI, I was responsible for developing and organizing all didactic and pedagogical materials in alignment with SENAI’s curriculum.
I designed lesson plans, defined learning objectives and competencies, and created technical resources such as maintenance guides, checklists, and drawings.
Through active teaching methodologies, I promoted problem-solving, teamwork, and hands-on practice — ensuring students developed both technical expertise and professional discipline.

Technical and Theoretical Instruction

I taught the core technical foundations of industrial mechanics, including:

• Mechanical drawing interpretation and assembly diagrams.

• Metrology and dimensional control, using calipers, micrometers, and dial indicators.

• Industrial lubrication systems, oils, greases, and maintenance best practices.

• Materials science, focusing on wear, failure analysis, and heat treatment.

• Workplace safety, emphasizing NR-12, NR-33, and NR-35 compliance and the 5S methodology.

Practical Applications in Maintenance Mechanics

Students applied theory in real-world workshop activities, such as:

a) Disassembly, Inspection, and Assembly

Overhauling pumps, compressors, gearboxes, and bearings, learning replacement and alignment techniques.

b) Shaft Alignment and Balancing

Performing precise shaft alignment with dial indicators and laser systems, and rotor balancing per industrial standards.

c) Welding and Bench Fitting

Carrying out manual fitting, drilling, and tapping, plus light welding repairs on supports and mechanical structures.

d) Power Transmission Systems

Assembling and maintaining belt, chain, gear, and coupling systems, including tensioning and lubrication calculations.

e) Hydraulic and Pneumatic Systems

Introducing basic hydraulics and pneumatics, emphasizing diagnostics, leak detection, and component replacement.

Maintenance Strategies and Procedures

I guided students through preventive, predictive, and corrective maintenance processes, teaching them how to:

• Develop maintenance plans and schedules.

• Perform vibration, noise, and temperature analysis.

• Document interventions and prepare technical maintenance reports.

• Identify continuous improvement opportunities in industrial environments.

Evaluation and Professional Growth

Students were evaluated through practical performance, theoretical understanding, and professional behavior.
I provided continuous feedback, monitored individual progress, and reinforced essential traits such as discipline, punctuality, teamwork, and safety awareness.
I also participated in pedagogical meetings to continuously improve SENAI’s teaching practices.

Course Structure and Duration

Average Duration: 18 Months (≈ 1,800 hours)
Structure Overview:

• Technical Drawing and Metrology — 180h

• Bench Fitting and Basic Welding — 200h

• Assembly and Maintenance of Mechanical Systems — 480h

• Power Transmission and Lubrication Systems — 180h

• Alignment and Balancing — 120h

• Industrial Hydraulics and Pneumatics — 240h

• Maintenance Planning and Management — 180h

• Safety, Quality, and Best Practices — 120h

Activity Description — Industrial Maintenance Mechanics Instructor (SENAI)

1. Didactic Planning and Pedagogical Organization

• Prepare lesson plans in accordance with SENAI’s curriculum, defining objectives, competencies, content, and assessment methods.

• Develop handouts, technical drawings, maintenance sheets, checklists, and practice guides.

• Plan theoretical and practical activities in an integrated manner, ensuring the gradual development of students’ technical and behavioral skills.

• Apply active teaching methodologies, emphasizing problem-solving and supervised practical learning.

2. Technical and Theoretical Fundamentals

• Teach mechanical technical drawing interpretation, assembly diagrams, and power transmission systems.

• Teach metrology and dimensional control, using instruments such as calipers, micrometers, dial indicators, and bore gauges.

• Cover the fundamentals of industrial lubrication, types of greases and oils, and both automatic and preventive lubrication systems.

• Introduce concepts of metallic materials, heat treatment, wear, and mechanical failures.

• Teach occupational safety principles, including the use of PPE, compliance with NR-12, NR-33, and NR-35 standards, and organizational practices such as 5S.

3. Practical Activities in Maintenance Mechanics

a) Disassembly, Inspection, and Assembly of Mechanical Components

• Perform disassembly, inspection, and assembly of gearboxes, centrifugal pumps, compressors, bearings, and shafts.

• Teach techniques for replacing bearings, seals, gaskets, and packings.

• Demonstrate best practices in torque tightening, alignment, and dimensional adjustment.

b) Shaft Alignment and Balancing

• Conduct shaft alignment using dial indicators and laser alignment systems, explaining angular and parallel misalignment concepts.

• Perform static and dynamic rotor balancing following standardized procedures.

c) Welding and Bench Fitting

• Teach manual bench operations (filing, drilling, tapping, fine fitting) applied to maintenance tasks.

• Perform small welding and repair operations on supports, bases, and housings.

d) Mechanical Power Transmission Systems

• Teach assembly and maintenance of systems involving belts, pulleys, chains, gears, and couplings.

• Explain calculations for transmission ratios, belt tension, and proper lubrication.

e) Hydraulic and Pneumatic Systems Applied to Maintenance

• Introduce the fundamentals of industrial hydraulic and pneumatic systems.

• Teach basic procedures for troubleshooting, leak detection, and component replacement.

4. Preventive, Predictive, and Corrective Maintenance

• Teach the preparation and execution of preventive and predictive maintenance plans.

• Apply techniques for analyzing vibration, temperature, noise, and visual inspection.

• Record maintenance interventions in accordance with standards and internal procedures.

• Develop technical maintenance reports and propose continuous improvement actions.

5. Evaluation and Professional Development

• Assess students’ technical and behavioral performance based on both practical and theoretical criteria.

• Monitor individual progress and provide ongoing feedback.

• Encourage professional attitudes such as punctuality, discipline, organization, and teamwork.

• Participate in pedagogical meetings and contribute to the continuous improvement of the course.

6. Course Structure and Duration

Average duration: 18 months (approximately 1,800 hours)

Typical structure:

• Technical drawing and metrology — 180 h

• Bench fitting and basic welding — 200 h

• Assembly and maintenance of mechanical systems — 480 h

• Power transmission and lubrication systems — 180 h

• Alignment and balancing — 120 h

• Industrial hydraulics and pneumatics — 240 h

• Maintenance planning and management — 180 h

• Safety, quality, and best practices — 120 h