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Académie
Garage Door Technician
Garage Door Maintenance & Service Certification
Opener & Drive System Maintenance
Vérification des connaissances
Opener & Drive System Maintenance
Vérification des connaissances
Vérification des connaissances
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Why should the opener rail be inspected for straightness during maintenance?
A
Rail straightness only affects sound levels, not function
B
A bent or misaligned rail causes the trolley to bind or drag, increasing motor load and wear, and can cause derailment
C
Rail inspection is only needed after a door collision event
D
Minor rail bends are self-correcting as the opener operates
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