Vibration Resistance
This is the ability of a receiver mounted on a crane chassis or on a moving trolley to keep its connections and enclosure integrity under continuous mechanical vibration. The electronic board itself rarely fails; the real fault is terminal loosening and cable fatigue.
Vibration produces faults through two mechanisms. The first is screw loosening: the terminal tightening torque falls over time, the contact resistance rises, the connection heats up and finally gives an intermittent contact. The second is cable fatigue: the conductor leaving a fixed point breaks strand by strand through repeated bending; the break is usually invisible under the insulation.
- Mounting: attach the receiver not to the part that vibrates most, such as the motor body or the gearbox, but to the most rigid point available and away from vibration; use vibration-isolating mounts if necessary.
- Cable: leave a drip loop at the enclosure exit and clamp the cable within 15–20 cm of the exit, so that the fatigue does not fall between the clamp and the enclosure.
- Maintenance: re-tighten all terminal screws within the first month after commissioning and periodically thereafter.
This step is the part of intermittent-response complaints that is solved in the wiring rather than on the radio side.
The context in which this term is used: Wireless Crane Remote Control Selection Guide