CT Elevator Mechanic key terms

A designed elevator drive relationship using the suspension and sheave interface, whose actual geometry and ratings govern force transfer.

A defined relationship between rope and car motion, requiring its convention and actual geometry rather than a guessed numerical label.

The actual offsetting mass relationship in a traction system, which affects energy and force without one universal payload percentage.

A specified overspeed-related sensing or actuation function, distinct from normal drive control, leveling and every other protective device.

A component regulating relevant fluid paths under the actual elevator design, not automatically complete pressure or rupture protection.

The actual function addressing travel toward an end limit, distinct from a complete safeguard against every motion hazard.

The actual positioning of car floor relative to the landing under the designed control and mechanical arrangement, not proof of all code compliance.

The control decision assigning or sequencing service calls under the actual operating model rather than the physical lifting mechanism.

A designed system returning appropriate braking energy to a usable electrical path when the actual energy-flow conditions permit.

Energy remaining in electrical, mechanical, hydraulic or other forms after an apparent stop, requiring the actual competent control method.

A record of actual states, conditions and events useful for diagnosis, distinct from a conclusion that one specific component must be defective.

The actual competent confirmation and release process after work or impairment, not merely resetting a display or completing a signature.

The relevant pressure-loaded area for the stated direction, with the rod area subtracted on the annular side of a double-acting cylinder.

Flow restriction on an actuator’s exhaust path in a specified circuit, which is not by itself a universal safe holding device for an overrunning load.

Pressure describes force intensity while flow describes volume rate; confusing them can give an incorrect explanation for actuator force or speed.

Formation and collapse of vapor cavities when local liquid pressure becomes unsuitable, distinct from simply drawing free air into a system.

An engineered combination managing the specified load and failure conditions, which cannot be replaced by assuming any simple throttle safely holds a suspended mass.

A documented change in performance or condition that can motivate investigation but does not alone establish the unique failed component or root cause.

A maintenance action triggered by relevant observed equipment condition under appropriate assessment criteria, rather than simply by elapsed calendar time.

A proposed explanation for the failure mechanism that must be tested against suitable evidence, not established merely by replacing a named part.

An authorized return-to-service process including the relevant protective functions, functional checks, records and handover under actual equipment and site requirements.

A defined average of relevant active repair time divided by the counted repairs, which must not be confused with every elapsed outage or logistical delay.

A controlled record of asset conditions, faults, actions and evidence supporting comparisons and investigation rather than merely storing the latest replacement invoice.