How to fix a stuck trekking pole section that won't close?

Few things are as frustrating as finishing a long hike, collapsing your poles, and finding that one section refuses to budge. Whether it’s a telescopic pole with a stuck inner shaft or a foldable Z‑pole with a jammed joint, this problem usually stems from dirt, corrosion, or a slight bend. Here’s a step‑by‑step guide to freeing stuck sections without damaging your poles.

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Step 1: Identify the cause

Before applying force, determine why the section is stuck:

• Dirt and grit: The most common cause. Mud or sand has worked into the overlap.
• Corrosion: Salt water or acidic peat has caused mild galvanic corrosion between the inner and outer tubes.
• Over‑tightened lock: A twist lock was turned too hard, jamming the expansion cam.
• Slight bend: The inner tube is bent, wedging it against the outer tube.

Step 2: Clean and lubricate

For dirt or corrosion:

1. Extend the pole fully (if possible) to expose the stuck joint.
2. Rinse with warm water to remove surface dirt. Use a soft brush to scrub around the seam.
3. Apply penetrating lubricant (e.g., WD‑40, GT85, or a silicone spray) to the seam. Let it soak for 10–15 minutes. The lubricant will seep into the gap, dissolving corrosion and reducing friction.
4. Grip the sections with rubber gloves, a jar opener, or a piece of non‑slip mat. Twist gently while pulling apart. Avoid sudden, forceful jerks – they can bend the shaft.

Step 3: Use thermal expansion

If cleaning doesn’t work, temperature can help:

• For aluminum poles: Pour hot (not boiling) water over the outer section. The outer tube will expand slightly. At the same time, apply an ice cube or cold pack to the inner section to make it contract. Then twist and pull.
• For carbon poles: Avoid extreme heat (can damage resin). Use warm water only (max 60°C). Carbon expands less, so this method is less effective.

Step 4: Gentle percussion (for twist locks only)

If a twist‑lock mechanism is jammed in the expanded position:

1. Hold the pole vertically with the stuck section at the top.
2. Tap the side of the lock lightly with a rubber mallet or the handle of a screwdriver. The vibration may release the cam.
3. Do not strike the shaft directly – you could dent it.

Step 5: Straightening a bent inner shaft

If the inner tube is bent, you may see a visible curve when the pole is extended. To straighten:

1. Roll the bent section on a flat, hard surface (e.g., a table or a flat rock). The high point of the bend will be evident.
2. Apply gradual pressure with your thumbs to bend it back. Work slowly; aluminium can be straightened several times, but carbon cannot (if carbon is bent, it’s probably cracked and should be replaced).
3. Test fit by sliding the inner tube into the outer section. If it still binds, repeat.

Step 6: Disassemble twist locks (advanced)

For twist‑lock poles that are stuck because the plastic cam has swollen or cracked:

1. Unscrew the lock by twisting the knob anticlockwise (some models require a hex key).
2. Pull out the inner shaft and inspect the cam. Clean or replace the cam (spare parts are available from manufacturers).
3. Reassemble and test.

What NOT to do

• Do not use pliers or a vice directly on the shaft – you’ll crush or scratch it.
• Do not hammer on the end of the pole – you’ll flare the tube, making it even tighter.
• Do not use excessive force – a bent pole is repairable; a snapped pole is not.
• Do not heat carbon poles with a hairdryer or heat gun – the resin can degrade.

Prevention for the future

• Rinse and dry your poles after every muddy or wet hike.
• Store poles extended (not collapsed) to allow air circulation and prevent corrosion.
• Loosen twist locks slightly before collapsing – never store them fully tightened.
• Apply a thin layer of silicone grease to the inner shaft (avoid the lock area) to reduce friction.

When to call it quits

If the section remains stuck after all these methods, the pole may be permanently damaged. For expensive poles, contact the manufacturer – they may offer a repair service or a replacement section. For cheap poles, it may be time to retire them and invest in a better pair.

Final verdict

A stuck trekking pole section is almost always fixable with patience, cleaning, lubrication, and gentle thermal or percussive persuasion. Start with the simplest method (clean + lubricate) and work your way up. Avoid brute force – it’s the fastest way to ruin your poles. With regular maintenance, you can prevent most sticking issues and keep your poles collapsing smoothly for years.