How to Repair a Switchblade

Take off the switchblade casing. Most casings are secured with two or more screws and can be easily removed with a small screwdriver.

Examine the blade and its components once the casing has been removed. Check for obstructions, such as dirt or debris, around the area where the "switch" button is located. Obstructions in this area can prevent the blade from flicking out when you press the button. Remove any debris, and wipe the blade and its components clean with a cloth.

Squeeze lubricant onto both sides of the knife blade. This will help prevent debris and dust from sticking to the knife's blade, and can reduce the risk of it rusting in the future, too.

Reassemble the switchblade knife. Place the screws back in their original positions and tighten them using a screwdriver. Leaving loose screws can cause the knife to wobble or rattle as it flicks out. Loose screws can also lead to the knife being unstable, and cause it to move around when in use.

Check the portal area, where the blade ejects from when activated. Ensure that there is no dirt or debris that may be preventing a smooth opening of the knife. Congestion here, as with congestion in the button area, can cause problems.

Identify the retraction buttons of your switchblade knife. These are usually found on either side of the knife, about halfway down the handle. Holding these buttons allows you to ease the blade back into the handle. Remove any dirt from around the buttons if the blade won't slip back in easily.