To set or reset the combination on your Master Lock 5422D / 5423D Push Button Lock Box: Open the lock box by entering the combination. If you're setting the combination for the first time, press the "CLEAR" (C) button and then press the "OPEN" button. Locate the 12 yellow plastic slotted buttons behind the door. via
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How do you reset a Master combination lock without the code?
Pull up gently on the shackle and hold it in place. Turn the dial clockwise listening carefully until you hear the lock click. Start with a good deal of pressure and gently let up as you spin it around, until you meet resistance in only one place. If the dial catches every few numbers, you are pulling too hard. via
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How do you unlock a combination lock with 3 numbers?
A combination lock will have a 3 digit lock code.
It should be on the back of the lock. Have the 3 number code or combination number memorized, write it down, or put it in your phone notes/memo. –Turn RIGHT 3 times to first code number. –Turn LEFT 1 time past first number and stop on second number. via
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How do you reset a Master lock?
Insert reset tool (enclosed in package) in hole on side of lock. Push reset tool in and turn 90 degrees (in either direction). Reset tool automatically stays in this position. Set wheels to desired combination. via