Mul-T-Lock knob lock cylinder cleaning repair

"The key does not stick, so it cannot be locked or unlocked."

It's been hard to stick the key for about a week, but I've managed to use it.I wasn't feeling well, so I asked him to check it.

I immediately felt a sense of discomfort in the situation of the findings.

(This looks like glue)

It seems that he has no idea.The cylinder is a rare Mul-T-Lock knob.Whether it can be removed even if it is disassembled.Carefully disassemble and wash for 10 minutes.After that, apply enough lubrication to complete the process.I checked it with a scope, but fortunately it didn't seem to have infiltrated all the way.

In case of recurrence, tell that it will be a new linder replacement and it is completed.