Please be sure to watch the instructional videos first. If you still have problems, the following troubleshooting tips may help.
2. Snaps Stopped Closing After Wash/Dry
3. Snaps Falling Off Fabric
4. Snaps are Cracking
5. Snaps are Uneven
If you are using basic K1/K2 pliers, a slightly uneven press is normal but should not affect the functionality of the snap. Tightening all 3 metal screws may help. These screws should be checked and tightened periodically.
When installing a snap, hold the pliers so that the bottom rests on a table. Then press the top handle down. Like this. This helps to eliminate side-to-side motion and better ensures a flat press (not to mention it's easier on your hands and wrist).
If your flattened prongs are severely uneven, try "resetting" the pliers by taking apart the bottom black cap die tray and the top metal shank and then putting the pieces back together.
7. Fabric is Tearing
Fabric will tear if it is delicate, thin, or stretchy, like jersey. To prevent ripping, reinforce your fabric with a sturdier material, such as twill, around the snaps.
If you are using size 20 plastic snaps on such material, try size 16 plastic snaps instead, which have a slightly gentler grip. Reinforcement may still be necessary.
8. Pliers are Crushing Snaps
This happens when the inappropriate black cap die tray or top metal shank are used. Refer to the video instructions to ensure you have the correct parts in your pliers for the particular snap you are using. Note that instructions may differ depending on the pliers model and snap size. For example, installing size 16 plastic snaps with K1 pliers is a totally different process than installing them with K2 pliers. (K2 pliers are not recommended for size 16 or smaller snaps.)
9. Tool No Longer Applies Enough Pressure
If you've been using your pliers or table press for a while with good results, then one day they just don't seem to work as well or your newly installed snaps won't close, it may be time to replace some of the parts. Just like any mechanical tool, parts may wear out over time.
Basic K1/K2 Pliers: The tension spring, rubber head, and cap die will wear down the most with continued use. If any of the metal screws are significantly loose, those should be replaced as well. Parts are available for K1 or K2 pliers.
Table Press: Any rubber or springs on the dies will lose their elasticity with continued use, so dies will need to be replaced periodically. Dies are available here.
10. Squeezing Pliers Hurts Hand
A mounting base for your basic K1 / K2 pliers can help to reduce hand and wrist strain. Or simply hold the pliers so that the bottom rests on a table. Then press the top handle down. Like this. This also helps to eliminate side-to-side motion and better ensures a flat press.
11. Table Press Dies Don't Bulge Out
If you've just started using your press, first make sure the vertical screw behind the handle is low enough so it's not getting in the way when you press down on the handle. If your handle hits the screw, then the screw is too high and needs to be adjusted lower, or even removed. (The screw is to prevent too much pressure from being applied, but for most users, this isn't an issue.)
Unscrew the top die enough so that it sits lower in the press but is still stable. This will provide a deeper reach and result in a firmer press.
If you're using a table press with the 3-piece professional-grade dies to install plastic snaps and you've watched the video tutorial, you know that the top rubber dies should bulge out to ensure an adequate press, like this:
If you're new to the table press and can't apply enough pressure for the rubber dies to bulge, you may need to place the press on a lower surface, or stand on a stool, until you become more familiar with the machine. The press should be low enough so that your elbow can *fully* straighten out when you press down. This allows you to lean into the press and use your body weight to apply pressure. The rubber will be become less stiff with use.