Why do my hand pruners stick instead of springing open?

Start by considering residue and movement at the pivot rather than assuming the spring has failed. Sap buildup can affect cutting performance and make blades stick together. [S1] Stiffness may also improve with care at the central pivot and spring, but check the pruner maker’s instructions first. [S2]

Don’t force the handles or put fingers near the cutting edge while inspecting. If you see blade damage, stop using the pruners; the care guidance says to inspect them safely and not use damaged tools. [S1]

Use a simple sequence:

1. Set the pruners down and consult the maker’s care instructions, especially for cleaning and lubrication.
2. Clean off visible residue, then dry the metal surfaces. Regular cleaning, drying, and oiling are recommended for garden tools. [S1]
3. With the tool handled safely, check whether the blades still appear stuck together and whether the handles move more freely. Don’t test by cutting a plant if the tool seems damaged or unsafe.

This is a cautious check, not a diagnosis. The cited guidance supports cleaning and drying as care steps; it doesn’t say that every sticking pruner will be fixed by them.

If the maker’s instructions allow it, the RHS guidance says a few drops of general-purpose oil or a smear of petroleum jelly on the central pivot and spring can improve movement and reduce stiffness. [S2] Apply only as directed by the maker, and avoid improvising with products or taking the tool apart.

Afterward, check movement gently while keeping clear of the blade edge. If the instructions don’t cover lubrication, or stiffness remains, pause and ask the maker or a qualified repairer. This source gives general care advice; it doesn’t establish which lubricant is right for every pruner model.

Stop using the pruners if a blade looks damaged, or if you can’t inspect the tool safely. [S1] Don’t try to sharpen or repair the blade based on this guide: the cited sharpening advice says to check the maker’s instructions and not attempt blade work without appropriate training. [S2]

For a tool that remains stiff after permitted cleaning and lubrication, note what you observed and ask the maker or a qualified repairer what to do next. The sources do not identify a particular failed part or show that a spring replacement is needed.

Copy and fill in this checklist:

Pruner check

• Tool/model: [name or model]
• Symptom: [sticks closed / stiff pivot / other]
• Visible residue: [yes / no / unsure]
• Blade damage visible: [yes / no / unsure]
• Maker’s care instructions checked: [yes / no]
• Cleaned and dried as permitted: [yes / no]
• Lubrication allowed by maker: [yes / no / unsure]
• Result after permitted care: [opens freely / still stiff]
• Next step: [stop using / ask maker / ask qualified repairer]

Keep the note factual. It helps explain the problem without guessing which part has failed.