Trekking poles are poles that serve a number of purposes to nature enthusiasts such as hikers and ramblers. They can aid mobility on rugged terrain, help check the depths of ravines or other obstructions, or help to ease joint pains of walkers who are not in the best of health. Unsurprisingly, given the all-terrain nature of their purpose, trekking poles sometimes can require some maintenance or repair to keep them in top shape.
Pull apart the two sections of the pole. You should be left with two long tubes.
Use a wire brush to firmly scrub any areas of rust. Scrub more firmly in areas of extreme corrosion and softer where damage is minor.
Using a cloth to wipe away loose areas of rust.
Spray metal lubricant on areas cleared of rust. Let the lubricant sit for one hour, then wipe away with a cloth.
Reconnect the two parts of the pole.
Fix the lock. If your pole won't lock upon expansion or retraction, hold the pole at the joint where the smaller tube (plug) and the larger tube (tube) meet and gradually rotate the plug until it begins to expand and becomes tighter inside the tube. The pole should be loose enough to slide to different lengths, but firm enough to lock.
Pull the pole to your desired length. The plug now should be a snug enough fit for the trekking pole to lock at that length.
Cross-reference this advice with the user manual that came with your particular brand of trekking pole, as specific brands or types of trekking pole may have additional tips.