To retain the valve to the valve spring, could also be called keepers
you need a large pair of channel locks or brake spring removal tool, i use channel locks, but watch your knuckles ,those springs are knuckle busters !
a spring pushes the tip upward while a flexible tab locks it in place
It locks the brakes when the vehicle or trailer is not in use. It also engages if air pressure is suddenly lost.
You can disable the lock switches on all the doors. Take the two screws out, slide the spring over and disconnect the switch.
It's the same as all the other "Red Ryder"BB guns. When you cock the lever it pulls back the spring in the Air Piston tube and locks it in place. Another spring forces the BB into place at the end of the piston tube. The trigger releases the spring allowing the spring and piston to slide forward and Air pressure fires the BB out of the barrel.
Graphite works well in lubricating key operated locks such as, pad locks, door locks and ignition locks.
The Welland Canal contains locks that need to be transited to get to the Atlantic Ocean.
something that locks doors
The original Erie Canal had 83 locks. The canal was improved and the number of locks went down to 72 locks. The canal was improved again and now there are only 35 locks.
Dams - yes, locks - no
How do door locks work?