TPFP Technicien Maintenance Industrielle cheat sheet
TPFP Technicien Maintenance Industrielle · Keep the key ideas within reach.
Machine assembly, metrology, bearings and power transmission
Use the actual drawing revision, dimensions, tolerances and instructions.
Resolution, repeatability and accuracy describe different properties.
Flexible couplings do not excuse uncontrolled misalignment.
Fits, tension, torque and installation limits are equipment-specific.
Maintenance diagnosis, condition evidence and controlled restoration
Distinguish observed symptoms, hypotheses and established causes.
Use actual condition criteria rather than universal setpoints.
A stopped control display does not establish safe isolation.
Controlled restoration and accurate records complete the reasoning loop.
Pneumatic and hydraulic model reasoning
p = F/A; 1 bar = 10⁵ Pa; 1 MPa = 10 bar
Q = A·v links flow, area and speed
Retraction force uses the annulus (bore minus rod)
Flow control depends on load and circuit; overrunning-load safety requires a properly engineered load-control system.
Hydraulic and pneumatic performance depends on the specified pressure, fluid, components, losses and operating conditions.
Read ISO 1219 symbols by the number of ports and positions
Measurement, feedback, PLC and automation
Sensitivity = Δoutput/Δinput; resolution = smallest detectable change
Closed-loop error compares reference and measurement; integral action can remove appropriate steady-state error only under suitable stability and operating assumptions.
PLC scan: read inputs → run program → update outputs
4–20 mA live zero: (I − 4)/16 of the span
Repeatability ≠ accuracy, resolution ≠ sensitivity
Robot DOF come from its joints; workspace is the reachable volume