Remove the feed to the air brake, remove the cage bolt from the side of the cage.
Air brakes are fail-safe. That is to say the brakes engage when there is no air to keep them open. In case of a failure to provide pneumatic pressure, caging bolts are included in trucks to force the brakes open, which can be used by the tow trucks/police.
If they can't start the truck to turn on the air compressor, the truck doesn't move. If they can't find cage bolts, the truck can't be towed.
Source: https://www.bitchute.com/video/ejxHpjnBdChJ
Remove the feed to the air brake, remove the cage bolt from the side of the cage.
Air brakes are fail-safe. That is to say the brakes engage when there is no air to keep them open. In case of a failure to provide pneumatic pressure, caging bolts are included in trucks to force the brakes open, which can be used by the tow trucks/police.
If they can't start the truck to turn on the air compressor, the truck doesn't move. If they can't find cage bolts, the truck can't be towed.
Would take months to move all those trucks.