Circuit breaker locks are essential safety devices, but many users tend to lock them and forget about them. Over time, this can lead to several issues. Below are some of the most frequent problems and how to resolve them:
- Lock Beam Doesn’t Move
A common cause for this issue is large geometric tolerance in the lock beam. To fix it, insert the key into the lock, turn it to the open position, and gently tap the lock with a small hammer. - Lock Cylinder Won’t Turn
If a circuit breaker lock is left unused for a long time, friction can build up, causing rust on both the lock and the key. To resolve this, apply a small amount of diesel or gasoline to lubricate the lock. - Key Gets Stuck
If the key is stuck at the base of the lock, you can use tweezers or a similar tool to remove it. In cases where the lock cylinder breaks, remove the 7-hole seal, take out the broken parts, reinstall them, and seal the lock with aluminum wire. - Key Plug Breaks Off
Over time, sprinkle graphite powder into the keyhole to prevent this issue. Alternatively, pencil lead works as a good substitute. Avoid using lubricating oil, as it can cause further issues.