• If the key enters the lock but will not turn a quarter turn anti clockwise. Check that it is the correct key for the product and that there is no damage to the profile at the end of the key or that it is not worn. Also check for debris in the tubular part of the key.

If everything is ok with the key, then try holding the head of the lock bar to stop it from turning whilst attempting to turn the key a quarter turn anti clockwise. 

If you are still unable to turn the key, then take a close look at the 10 pins that are located radially within the lock. Each one of these should be at the same height as the other, and should move up and down freely. To check this, use a pin to push each pin down individually in order to check the movement. If any of them are found to be at fault, we recommend the use of WD40 to flood the lock to remove any dirt or grit. If compressed air is available then blow the lock out ensuring that the correct protective equipment is used. Further lubricate the lock again with WD40 and push the key in and out repeatedly to lubricate the pins. It may be necessary to repeat this process until the pin is released.

  • If the key enters the lock and turns a quarter turn anti clockwise but will not withdraw from the product, then this may be down to the ball bearings at the end of the lock bar not retracting when unlocked. This can be rectified by inserting the key and turning it into the unlocked position and then giving the cup a sharp tap with a hammer having first removed any plastic retaining caps (if applicable) this will cause the ball bearings to fall back into place. It should then be possible to remove the lock. Once this has been achieved, it is advisable to clean the ball bearings and the area around them with a wire brush and lubricate them with WD40.


  • If it is not possible to insert the key into the lock. Check that the inner and outer notch of the lock are in line and that it is possible to insert the key into the lock. If not and the notches are out of alignment, file the outer nib off a key and insert to realign the two notches. If this was the cause of the problem then we suggest that the ball bearings and the area around them are cleaned with a wire brush and lubricated with WD40, we also recommend that the modified key is replaced.


  • We hope that this helps but should you require any further help or assistance then please do not hesitate to get in contact by creating a New Support Ticket