If the muffler is not covered, simply unscrew it with a wrench.

Simply unscrew them.

To restore a paper air filter, simply unscrew the canister from the mower and replace the used filter with a new one.

To untangle your string, simply unscrew the yo-yo, take the halves apart, detangle the string, put the yo-yo back together, and away you yo.

If the spring broke, the reverse recoil of the barrel, instead of being passed on to the gear train, would simply unscrew the pinion.

When the diver starts to ascend, the diver simply unscrews the valve's crown to the full open position, allowing any breathing gas that may have been trapped inside the watch to escape during decompression.

However, rather than taking a drink he simply unscrewed the top and glanced underneath.

If the float is holed, replace it (it simply unscrews) or, as a temporary measure, empty out the water, then tie a plastic bag around it to stop water getting back in.

The bronze weather-vane can be removed by simply unscrewing it from the metal assemblage holding it, which takes 2 rounds.

To install them, simply unscrew the cover plate, place the gasket against the wall, and then reinstall the plate.