How to Repair a Jammed U-Lock Bike Lock

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Introduction

A jammed bike lock cannot be used properly, as the key would not be able to properly unlock the bike lock. If your U-Lock bike lock cannot be unlocked due to the fact that it is jammed, use this guide to fix the jam.

Before using the guide, make sure you are using the correct key and inserting it in the correct direction. By doing so, you can confirm if the bike lock is actually jammed.

You will need WD-40 in order to lubricate the lock. You will also need cotton swabs and paper towels to clean the lock. When using WD-40, make sure to exercise caution, as if it gets into your eyes there will be irritation.

What you need

Step 1 How to Repair a Jammed U-Lock Bike Lock

How to Repair a Jammed U-Lock Bike Lock, How to Repair a Jammed U-Lock Bike Lock: step 1, image 1 of 2

How to Repair a Jammed U-Lock Bike Lock, How to Repair a Jammed U-Lock Bike Lock: step 1, image 2 of 2

Grab the lock and look inside the keyhole located under the lock.

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Step 2

Grab the key to the lock and gently insert the key to test the resistance of the lock.

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Step 3

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Shake the WD-40 bottle side to side for 20 seconds, and flip the straw up for pinpoint stream.

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Step 4

How to Repair a Jammed U-Lock Bike Lock: step 4, image 3 of 3

Spray a small amount of lubricant in the keyhole and the lock handle.
WARNING: Keep your eyes away from the lubricant, which can cause eye irritation.
Grab a cotton swab or a small brush to remove the dust from inside the keyhole and around the bottom of the handle.