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silicon sealant dedicated for outdoor use. If silicon sealant is also applied on a card swiping area,
check for failure as well. If yes, see the above to repair it.
Check if the screws of the arms are loose. If yes, tighten them.
Check if the motor, bearing, fastening pieces, and drive shaft are loose. If yes, tighten them.
Apply anti-corrosion grease to the linkage, gears, and other moving parts.
Check if the circuit, cables and connectors are out in the open or loose. If yes, wrap them to
organize them, and tighten them.
